CN114051637A - 集成语音及噪声活动检测的低延时自动混波器 - Google Patents
集成语音及噪声活动检测的低延时自动混波器 Download PDFInfo
- Publication number
- CN114051637A CN114051637A CN202080048155.6A CN202080048155A CN114051637A CN 114051637 A CN114051637 A CN 114051637A CN 202080048155 A CN202080048155 A CN 202080048155A CN 114051637 A CN114051637 A CN 114051637A
- Authority
- CN
- China
- Prior art keywords
- channel
- audio signal
- audio
- initially gated
- mixer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000000694 effects Effects 0.000 title claims abstract description 30
- 238000001514 detection method Methods 0.000 title abstract description 12
- 238000000034 method Methods 0.000 claims abstract description 67
- 230000005236 sound signal Effects 0.000 claims description 96
- 238000004891 communication Methods 0.000 claims description 7
- 230000008569 process Effects 0.000 description 11
- 230000003068 static effect Effects 0.000 description 8
- 230000003044 adaptive effect Effects 0.000 description 5
- 230000006399 behavior Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000009467 reduction Effects 0.000 description 4
- 230000004044 response Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000001914 filtration Methods 0.000 description 3
- 230000006870 function Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 230000008447 perception Effects 0.000 description 3
- 230000001629 suppression Effects 0.000 description 3
- 230000001052 transient effect Effects 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 2
- 238000003491 array Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000003595 spectral effect Effects 0.000 description 2
- 230000002123 temporal effect Effects 0.000 description 2
- 241000282412 Homo Species 0.000 description 1
- 241001310793 Podium Species 0.000 description 1
- 230000001055 chewing effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000004590 computer program Methods 0.000 description 1
- 238000013135 deep learning Methods 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 238000002372 labelling Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000010801 machine learning Methods 0.000 description 1
- 230000000116 mitigating effect Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000000059 patterning Methods 0.000 description 1
- 230000000644 propagated effect Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 230000002459 sustained effect Effects 0.000 description 1
- 238000012549 training Methods 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
- G10L21/00—Speech or voice signal processing techniques to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
- G10L21/02—Speech enhancement, e.g. noise reduction or echo cancellation
- G10L21/0208—Noise filtering
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
- G10L21/00—Speech or voice signal processing techniques to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
- G10L21/02—Speech enhancement, e.g. noise reduction or echo cancellation
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
- G10L21/00—Speech or voice signal processing techniques to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
- G10L21/02—Speech enhancement, e.g. noise reduction or echo cancellation
- G10L21/0208—Noise filtering
- G10L21/0216—Noise filtering characterised by the method used for estimating noise
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
- G10L21/00—Speech or voice signal processing techniques to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
- G10L21/02—Speech enhancement, e.g. noise reduction or echo cancellation
- G10L21/0316—Speech enhancement, e.g. noise reduction or echo cancellation by changing the amplitude
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
- G10L21/00—Speech or voice signal processing techniques to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
- G10L21/02—Speech enhancement, e.g. noise reduction or echo cancellation
- G10L21/0316—Speech enhancement, e.g. noise reduction or echo cancellation by changing the amplitude
- G10L21/0364—Speech enhancement, e.g. noise reduction or echo cancellation by changing the amplitude for improving intelligibility
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
- G10L25/00—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00
- G10L25/78—Detection of presence or absence of voice signals
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
- G10L25/00—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00
- G10L25/78—Detection of presence or absence of voice signals
- G10L25/84—Detection of presence or absence of voice signals for discriminating voice from noise
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R3/00—Circuits for transducers, loudspeakers or microphones
- H04R3/04—Circuits for transducers, loudspeakers or microphones for correcting frequency response
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R5/00—Stereophonic arrangements
- H04R5/04—Circuit arrangements, e.g. for selective connection of amplifier inputs/outputs to loudspeakers, for loudspeaker detection, or for adaptation of settings to personal preferences or hearing impairments
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04S—STEREOPHONIC SYSTEMS
- H04S7/00—Indicating arrangements; Control arrangements, e.g. balance control
- H04S7/30—Control circuits for electronic adaptation of the sound field
- H04S7/307—Frequency adjustment, e.g. tone control
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
- G10L21/00—Speech or voice signal processing techniques to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
- G10L21/02—Speech enhancement, e.g. noise reduction or echo cancellation
- G10L21/0208—Noise filtering
- G10L21/0216—Noise filtering characterised by the method used for estimating noise
- G10L2021/02161—Number of inputs available containing the signal or the noise to be suppressed
- G10L2021/02166—Microphone arrays; Beamforming
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
- G10L21/00—Speech or voice signal processing techniques to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
- G10L21/02—Speech enhancement, e.g. noise reduction or echo cancellation
- G10L21/0316—Speech enhancement, e.g. noise reduction or echo cancellation by changing the amplitude
- G10L21/0364—Speech enhancement, e.g. noise reduction or echo cancellation by changing the amplitude for improving intelligibility
- G10L2021/03643—Diver speech
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
- G10L21/00—Speech or voice signal processing techniques to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
- G10L21/02—Speech enhancement, e.g. noise reduction or echo cancellation
- G10L21/0316—Speech enhancement, e.g. noise reduction or echo cancellation by changing the amplitude
- G10L21/0364—Speech enhancement, e.g. noise reduction or echo cancellation by changing the amplitude for improving intelligibility
- G10L2021/03646—Stress or Lombard effect
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Computational Linguistics (AREA)
- Health & Medical Sciences (AREA)
- Audiology, Speech & Language Pathology (AREA)
- Human Computer Interaction (AREA)
- Multimedia (AREA)
- Quality & Reliability (AREA)
- Circuit For Audible Band Transducer (AREA)
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
Abstract
本发明公开用于使用音频自动混波器提供语音及噪声活动检测的***及方法,所述音频自动混波器可排斥错误非语音或非人类噪声,同时最大化信噪比且最小化音频延时。
Description
相关申请案的交叉引用
本申请案要求2019年5月31日申请的第62/855,491号美国临时专利申请案的权益,所述案的全部内容以引用的方式并入本文中。
技术领域
本申请案大体上涉及用于提供与音频自动混波器集成的低延时语音及噪声活动检测的***及方法。特定来说,本申请案涉及用于使用音频自动混波器提供语音及噪声活动检测的***及方法,所述音频自动混波器可排斥错误非语音或非人类噪声,同时最大化信噪比且最小化音频延时。
背景技术
会议及演讲环境(例如董事会、会议情境及类似物)可涉及使用多个麦克风或麦克风阵列波瓣来从各种音频源捕获声音。例如,音频源可包含人类说话者。可通过放大扬声器(用于声音加强)将所捕获声音传播给环境中的本地观众及/或远离环境的其它者(例如经由电视广播及/或网络广播)。麦克风或阵列波瓣中的每一者可形成频道。所捕获声音可作为多声道音频输入且作为单一混合音频频道提供。
通常,所捕获声音还可包含环境中的错误非语音或非人类噪声,例如突然、冲击或复现的声音,如翻页、开包及容器、咀嚼、打字等。为最小化所捕获声音中的错误噪声,可将语音活动检测(VAD)算法及/或自动混波器应用到麦克风或阵列波瓣的频道。自动混波器可自动减小特定麦克风的音频输入信号的强度以在其未在捕获人类话音或语音时减轻背景、静态或固定噪声的贡献。VAD是话音处理中使用的技术,其中可检测人类话音或语音的存在或不存在。另外,噪声减少技术可减少某些背景、静态或固定噪声,例如风扇及HVAC***噪声。然而,此类噪声减少技术对于减少或排斥错误噪声并不理想。
虽然当前***中存在自动混合与VAD的组合,但此类组合通常无法固有地排斥错误噪声(特定来说,具有能够实时通信或与室内声音加强一起使用的低音频延时)。错误噪声的排斥可损及典型自动混波器的性能,这是因为自动混波器通常依靠相对简单的频道选择规则,例如首次到达时间或给定时刻的最高振幅。归因于话音或语音的高延时及/或前端削波(FEC),集成自动混合与VAD的当前***可能并非最佳的。例如,可将额外音频延时添加到频道以将VAD的检测延迟对准到语音发生,以便最小化对话音或语音中的音节或字词的FEC,但这可导致音频串流中的不可接受延迟。替代地,可通过决定不添加音频延时以将VAD检测延迟对准到音频串流而接受FEC,但此可导致音频串流中的不完整语音或话音。这些状况可导致降低的使用者满意度。再者,具有VAD的许多当前***可仅利用单一音频频道,其中有效操作无需考虑在特定环境中发生的话音/语音与噪声的空间关系。
此外,在自动混合应用(具有单独麦克风单元或使用来自麦克风阵列的经操纵音频波瓣)中,归因于麦克风及/或波瓣的不完美声学极性模式(polar pattern),语音及错误噪声可发生在相同环境中且可包含在全部麦克风及/或波瓣中。此可带来VAD检测能力(在个别频道及共同频道两者基础上)、适当自动混波器频道选择(其尝试避免错误噪声,同时仍选择含有语音的(若干)频道)及抑制由于其含有话音/语音而闸控开启的波瓣中的错误噪声方面的问题。
因此,***及方法有机会解决这些问题。更特定来说,***及方法有机会可使用音频自动混波器提供语音及噪声活动检测,所述音频自动混波器可排斥错误非语音或非人类噪声,同时最大化信噪比,增加可懂度,最小化音频延时,且增加使用者满意度。通过组合自动混合原理与更先进语音活动检测技术,可增强麦克风/波瓣选择以最大化话音对错误噪声比。
发明内容
本发明旨在通过提供***及方法而解决上文提及的问题,所述***及方法尤其经设计以:(1)利用经修改语音活动检测器,其经更改以用作噪声活动检测器以感测频道上是否存在语音或错误噪声;(2)基于来自语音活动检测器的度量及决策而执行额外频道闸控,所述度量及决策可影响及/或更动由自动混波器执行的频道闸控;(3)减少或消除所捕获语音/话音的前端削波的量;及(4)最小化来自最初可包含在特定闸控开启频道中的错误噪声的前端噪声泄漏的效应。
在实施例中,一种方法包含:确定由混波器最初闸控开启的频道的音频信号中是否存在非话音音频,其中所述混波器基于最初闸控开启的所述频道的至少所述音频信号生成混合音频信号;及在确定最初闸控开启的所述频道的所述音频信号中存在所述非话音音频时,通过闸控关闭最初闸控开启的所述频道而更动所述混波器以使所述混波器生成不具有最初闸控开启的所述频道的所述音频信号的所述混合音频信号。
在另一实施例中,一种***包含活动检测器,其经配置以确定由混波器最初闸控开启的频道的音频信号中是否存在非话音音频,其中所述混波器经配置以基于最初闸控开启的所述频道的至少所述音频信号而生成混合音频信号。所述***还包含频道闸控模块,其与所述活动检测器通信,且所述频道闸控模块经配置以在由所述活动检测器确定最初闸控开启的所述频道的所述音频信号中存在所述非话音音频时更动所述混波器以使所述混波器闸控关闭最初闸控开启的所述频道且生成不具有最初闸控开启的所述频道的所述音频信号的所述混合音频信号。
从阐述指示可采用本发明的原理的各种方式的阐释性实施例的以下具体实施方式及附图将明白且更充分理解这些及其它实施例以及各种置换及方面。
附图说明
图1是根据一些实施例的用于频道闸控的包含混波器及语音活动检测器的***的示意图。
图2是说明根据一些实施例的用于使用图1的***闸控来自麦克风的频道的操作的流程图。
图3是根据一些实施例的在图1的***的混波器中使用的示范性闸控状态机的图。
具体实施方式
以下描述描述、说明且例示根据本发明的原理的本发明的一或多个特定实施例。此描述并非被提供来将本发明限制于本文中描述的实施例,而是用于说明及教示本发明的原理,使得所属领域的一般技术人员能够理解这些原理且运用所述理解而能够应用所述原理以不仅实践本文中描述的实施例,而且实践可根据这些原理想到的其它实施例。本发明的范围旨在涵盖在字面上或根据等同原则可落在所附权利要求书的范围内的全部此类实施例。
应注意,在描述及附图中,相似或大体上类似元件可使用相同元件符号标记。然而,这些元件有时可使用不同数字标记,例如(例如)在此标记有利于更清楚描述的情况中。另外,本文中阐述的附图不一定按比例绘制,且在一些例项中,比例可能已夸大以更清楚地描绘某些特征。此类标记及图式实践不一定暗指潜在实质目的。如上文陈述,本说明书旨在被视为整体且根据如本文中教示且为所属领域的一般技术人员所理解的本发明的原理解释。
本文中描述的***及方法可从自动混波器生成混合音频信号,所述自动混波器减少且最小化在环境中感测到的错误非语音或非人类噪声的贡献。所述***及方法可结合语音活动检测器(或错误噪声活动检测器)利用自动混波器,其每一者做出独立频道闸控决策。自动混波器可基于频道选择规则而闸控开启或关闭特定频道,而语音/错误噪声活动检测器可取决于是否在由自动混波器闸控开启的频道中检测到语音或错误噪声而更动自动混波器的频道闸控决策。来自语音/错误噪声活动检测器的度量(例如可信度得分)还可影响频道闸控决策及/或影响自动混波器中的每一频道的相对选定混合。为支持低延时音频输出,在语音/错误噪声活动检测器能够更动音频混波器之前,一些错误噪声可泄漏到音频混合中。所述***及方法可允许此行为,同时最小化此频道闸控噪声开始的能量及主观音频质量影响。此允许最小化来自泄漏到频道中的错误噪声的能量,同时维持低延时。
图1是可用于排斥错误噪声的***100的示意图,其包含麦克风102、混波器104及语音活动检测器108。图2是用于使用图1的***100排斥错误噪声的过程200的流程图。***100及过程200可产生具有最佳信噪比且包含期望语音的混合音频信号的输出,同时最小化错误噪声的包含或贡献。
例如,例如会议室的环境可利用***100来促进与远程位置处的人员的通信。麦克风102的类型及其在特定环境中的放置可取决于音频源的位置、物理空间要求、美观、房间布局及/或其它考虑。例如,在一些环境中,可将麦克风放置在音频源附近的桌或讲台上。例如,在其它环境中,可将麦克风架空安装以从整个房间捕获声音。通信***100可与任何类型及任何数目的麦克风102一起工作。包含在通信***100中的各种组件可使用可由一或多个服务器或计算机(例如具有处理器及存储器、图形处理单元(GPU)的运算器件)执行的软件及/或通过硬件(例如,离散逻辑电路、专用集成电路(ASIC)、可编程门阵列(PGA)、现场可编程门阵列(FPGA)等)来实施。
一般来说,根据实施例的计算机程序产品包含具有体现在其中的计算机可读程序代码的计算机可用存储媒体(例如,标准随机存取存储器(RAM)、光盘、通用串行总线(USB)随身碟或类似物),其中计算机可读程序代码经调适以由处理器(例如,与操作***一起工作)执行以实施下文描述的方法。就此来说,程序代码可以任何期望语言实施,且可被实施为机器码、组合码、字节码、可解译原始码或类似物(例如,经由C、C++、Java、Actionscript、Objective-C、Javascript、CSS、XML及/或其它)。
参考图1,***100可包含麦克风102、混波器104、预混波器106、语音活动检测器108及频道闸控模块110。麦克风102中的每一者可检测环境中的声音且将声音转换为音频信号且形成频道。在实施例中,来自麦克风102的一些或全部音频信号可由波束成形器(未展示)处理以生成一或多个波束成形音频信号,如此项技术中已知。因此,虽然所述***及方法在本文中被描述为使用来自麦克风102的音频信号,但可预期,所述***及方法也可利用任何类型的声源,例如由波束成形器生成的波束成形音频信号。
可由混波器104、预混波器106及语音活动检测器108接收来自麦克风102中的每一者的音频信号,例如在图2中展示的过程200的步骤202。混波器104可最终生成及输出混合音频信号,所述混合音频信号可符合期望音频混合,使得加重来自某些麦克风的音频信号且去加重(deemphasize)或抑制来自其它麦克风的音频信号。音频混波器的示范性实施例在共同让与的专利(第4,658,425号美国专利及第5,297,210号美国专利)中公开,所述案中的每一者的全部内容以引用的方式并入。
来自混波器104的混合音频信号可包含来自使用***100闸控开启的一或多个频道的贡献,即,来自麦克风102的音频信号。混波器104及频道闸控模块110可响应于确定所捕获音频含有人类话音及/或根据某些频道选择规则而闸控开启一或多个频道以提供不具有抑制(或在某些实施例中,具有最小抑制)的所捕获音频。混波器104及频道闸控模块110还可响应于确定频道中的所捕获音频为背景、静态或固定噪声而闸控关闭一或多个频道以减小某些所捕获音频的强度。由混波器104及频道闸控模块110确定频道闸控可在步骤204发生。混波器104及频道闸控模块110可为与多个麦克风或阵列波瓣102对应的多个频道中的每一者呈现频道闸控决策。过程200可继续到步骤206。
在步骤206,如果频道在步骤204被确定为闸控关闭,那么过程200可继续进行到步骤218且混波器104可输出不包含闸控关闭频道的混合音频信号。然而,在步骤206,如果频道在步骤204被确定为闸控开启,那么过程200可继续到步骤208,其中在某些实施例中可应用非话音去加重滤波器,其用作带宽限制滤波器(例如低通滤波器、带通滤波器或线性预测编码(LPC))以主观地最小化前端噪声泄漏,如下文进一步详细描述。
在步骤210还可由语音活动检测器(VAD)108接收来自麦克风102的音频信号。VAD108可在步骤210执行算法以确定特定频道中是否存在语音或相反地特定频道中是否存在噪声。例如,如果由VAD 108发现特定频道中存在语音(或未发现噪声),那么VAD 108可认为所述频道包含语音或“非噪声”。类似地,如果未由VAD 108发现特定频道中存在语音(或发现噪声),那么可认为所述频道包含噪声或“非语音”。在实施例中,VAD 108可通过分析音频信号的频谱方差,使用线性预测编码(LPC),应用机器学习或深度学习技术来检测语音及/或使用例如ITU G.729VAD、包含在GSM规范中的VAD计算的ETSI标准或长期间距预测的众所周知的技术来实施。
通过识别特定频道是否含有错误噪声(即,“非语音”),***100可更动由混波器104及频道闸控模块110做出的决策以闸控开启频道且随后闸控关闭此类频道,使得错误噪声最终不包含在从混波器104输出的混合音频信号中。特定来说,在步骤212,如果在步骤210确定频道中存在错误噪声,那么过程200可继续到步骤220。在步骤220,归因于错误噪声的检测,可更动由混波器104及频道闸控模块110对闸控开启频道的决策,且频道可被闸控关闭。过程200可继续到步骤218,其中混波器104可输出不包含来自现在闸控关闭的频道的贡献的混合音频信号。在实施例中,来自VAD 108的可信度得分可用于确定是否可更动混波器104对闸控开启频道的决策以闸控关闭频道及/或用于影响自动混波器中的每一频道的相对选定混合。
然而,在步骤212,如果在步骤210确定频道中存在语音(即,“非噪声”),那么过程200可继续到步骤214。在步骤214,可移除在步骤208应用的滤波器,如下文更详细描述。在步骤216,可通过混波器104维持频道的闸控开启,且在步骤218,混波器104可输出包含此频道的混合音频信号。
在实施例中,由VAD 108用于识别频道中是否存在语音或噪声的步骤210及212可并行执行或仅在混波器104及频道闸控模块110已在步骤204及206确定频道闸控决策之后执行。例如,VAD 108可在预定时间段内收集及缓存来自输入音频信号的音频数据,以便具有足够信息来确定频道是否包含语音或噪声。因而,在混波器104的决策与VAD 108的决策(关于是否更动或不更动混波器104及频道闸控模块110的决策)之间的时间段内,错误噪声可暂时贡献于混合音频信号。在小的时间段内的错误噪声的此贡献可被称作前端噪声泄漏(FENL)。与前端削波相比,在混合音频信号中发生FENL可被视为对于混合音频信号的听众来说更期望且较不明显的。可通过控制FENL时间段的振幅及频率含量及所述FENL所允许的选定时间长度而最小化允许FENL的主观影响。
在实施例中,混波器104可包含闸控状态机,所述闸控状态机基于混波器104、频道闸控模块110及VAD 108的决策而控制频道闸控的最终应用。状态机可包含:(1)FEC时间段,其由混波器104及频道闸控模块110的设计以外的算法设计控制且延迟闸控开启时间;(2)在FENL时间段期间的特定持续时间,其中混波器104及频道闸控模块110具有对频道闸控的完全控制;及/或(3)最终时间段,其中来自VAD 108的闸控指示可与来自混波器104及频道闸控模块110的闸控指示进行逻辑AND运算。当混波器104及频道闸控模块110的闸控指示返回到闸控关闭频道时,闸控状态机可返回到其起始条件。在图3中展示闸控状态机的描绘。
可使用如下文详述的各种技术通过最小化可暂时泄漏到特定频道中的错误噪声的能量及频谱贡献而最小化FENL对混合音频信号的贡献。最小化FENL对混合音频信号的贡献可在FENL可发生的时间段期间减小对混合音频信号中的话音及语音的影响。在一些实施例中,此FENL最小化技术可在预混波器106中实施。
在一些实施例中,预混波器106可从语音活动检测器108接收状态信息。状态信息可包含自动混波器闸控旗标、VAD/NAD指示符及FENL时间段的组合。预混波器106可利用状态信息来确定随时间应用的振幅衰减及频率滤波。混波器104可从预混波器106接收经处理音频信号。从预混波器106到混波器104的经处理音频信号的数目在一些实施例中可与麦克风102的数目相同或在其它实施例中可小于麦克风102的数目。
一种技术可包含应用衰减闸控开启振幅直到VAD 108可肯定地确证由混波器104做出的闸控开启频道的决策。在FENL时间段期间频道的衰减可减小错误噪声的影响,同时对混合音频信号中的话音的可懂度具有相对不显著的影响。此技术可在预混波器106中通过在步骤209将简单衰减应用到自动混波器最近已在FENL时间段窗内闸控开启的频道且在步骤215移除衰减的应用而实施。FENL时间段窗在定时器期满之后退出,其与允许噪声泄漏而未有形地影响话音的主观音频质量的时间长度对应。
另一种技术可包含在FENL时间段期间减小音频带宽。在此案例中,减小音频带宽可在FENL时间段期间维持混合音频信号中的话音或语音的可懂度的最重要频率,同时显著减小具有某一时间段(例如,几毫秒)的全频带FENL的影响。此技术可在预混波器106中通过在步骤208应用非话音去加重滤波器且在步骤214移除非话音去加重滤波器的应用而实施,如上文描述。例如,在步骤208,可在混波器104已对是否闸控开启或关闭频道做出决策(例如,在步骤204及206)之后但在由VAD 108对频道中是否存在语音或噪声做出决策之前应用低通滤波器。一旦VAD 108已对频道中存在语音做出决策(例如,在步骤210及212),便可在步骤214移除非话音去加重滤波器的应用。在实施例中,预混波器106中的非话音去加重滤波器可为与来自麦克风102的未处理音频信号交叉衰落的静态二阶巴特沃斯(Butterworth)滤波器。在其它实施例中,预混波器106中的非话音去加重滤波器可被实施为串联的两个一阶低通滤波器,其中可通过随时间移动滤波器的极点的位置而应用更多或更少滤波,此提供对随时间独立且适应性地限制低频及高频的带宽的控制。这些滤波器的适应性控制可与FENL定时器参数或VAD可信度度量对应。在其它实施例中,预混波器106中的非话音去加重滤波器可被实施为通过采用线性预测编码而保留话音的共振峰结构的更复杂带宽限制滤波器。
另一种技术可包含更改音频的波峰因子以最小化噪声感知。许多类型的错误噪声可具有高于人类话音的波峰因子。持续高波峰因子可被人类感知为响度。通过在FENL区域期间将音频的波峰因子压缩到等于或低于人类话音的波峰因子,可维持人类话音的可懂度,同时降低错误噪声的所感知响度。在一些实施例中,可动态地压缩具有高于目标的瞬时时域波峰因子的信号以维持期望波峰因子。在其它实施例中,压缩可被修改为限制器以进一步确保所得音频具有期望波峰因子。
进一步技术可包含引入预定量的FEC,其可在心理声学上最小化急剧瞬时错误噪声(例如,笔卡嗒声、书本掉落在桌上等),而不显著地影响语音的主观质量(其通常不展现瞬时开始)。在此状况中,可进一步精化FEC的引入以仿真瞬时错误噪声的逆包络,此可显著地减少噪声感知而不完全移除FENL时间段期间将发生静态衰减的话音开始。这可在步骤209中实施且在步骤215中通过应用时变而非静态衰减而移除。通过使用这些技术中的一或多者,可最小化到未检测的混合音频信号中的错误噪声泄漏的影响直到VAD 108可对频道中是否存在语音或噪声做出决策。因此,此可在不增加音频路径延时的情况下为话音可懂度提供益处。
可通过使用适应性技术而增强上文描述的FENL最小化技术,所述适应性技术可自动修改行为,所述行为更好地匹配***100在操作的环境。此类适应性技术可控制上文描述的闸控状态机的时间参数以及例如逆FEC包络形状、带宽减小值、FENL时间段期间的衰减量、FENL最小化时间进/出行为及/或混波器104的时间弹道的参数以闸控关闭VAD 108已识别为含有错误噪声的频道。
在实施例中,***100可收集每一频道的统计(与多个麦克风或阵列波瓣102中的每一者对应)以识别特定频道是否平均含有语音/话音或噪声。例如,在特定环境中,一个频道可指向门,而另一频道指向***位置。在此环境中,随着时间推移,***100可确定指向门的频道几乎唯一地是错误噪声且指向***位置的频道几乎唯一地是语音。作为响应,***100可调谐指向门的频道以应用更长强制FEC,使用更积极FENL最小化参数,及/或使闸控状态机在闸控决策方面给予VAD 108额外优先级。相反地,***100可调谐指向***位置的频道以消除FEC,减少FENL最小化技术的使用,及/或使闸控状态机在较长时间段内为混波器104提供闸控控制(此可继而迫使VAD 108在更动与门控关闭频道之前对其关于噪声的决策更有信心)。
另一种技术可包含***100仅允许在VAD 108已达到特定频道上的高可信度的阈值水平时训练调适。此可减轻如应用于FENL最小化技术的调适行为中的假阳性及/或假阴性。进一步技术可包含***100在音频周期内对随后由VAD 108标记为噪声的闸控开启频道的音频包络数据进行取样及分析,以便更新上文描述的逆FEC包络形状。
在实施例中,适应性行为也可应用到闸控关闭频道的过程。例如,在正常话音期间,***100可应用缓慢斜波来闸控关闭频道,以便最小化对音频的噪声底限上升及下降或改变的感知。作为另一实例,在存在噪声的情况下,***100可应用快速斜波来闸控关闭频道,以便最大化响应于由VAD 108做出的决策而闸控关闭频道的有效性。在实施例中,***100可组合来自混波器104及VAD 108的信息以确定闸控关闭频道的原因。此信息可用于动态地更改频道闸控关闭的速度。另外,斜波的不均匀斜率可用于在感知上优化错误噪声及话音条件两者。
***100可包含解决麦克风或波瓣102之间的不完美音频选择性(此可导致许多或全部频道具有语音及错误噪声两者)的进一步技术。在此状况中,简单地闸控关闭含有最高量的错误噪声的特定频道可能无法完全消除来自混合音频信号的错误噪声。此可导致一些错误噪声仍存在于含有语音的闸控开启频道中。一种解决此状况的技术可包含在预混波器106中使用噪声泄漏滤波器。可在VAD 108已对特定频道中存在语音做出决策之后的时间部分期间应用噪声泄漏滤波器。如果已确定不同频道包含错误噪声(即,混波器104对闸控开启所述不同频道的决策已被VAD 108更动),那么噪声泄漏滤波器可被应用到具有语音的频道,以便减轻噪声到具有语音的频道中的高频泄漏。换句话说,可在至少一个频道被识别为包含错误噪声而其它频道被识别为不具有错误噪声(即,具有语音)时应用噪声泄漏滤波器。在实施例中,预混波器106中的噪声泄漏滤波器可为与来自麦克风102的未处理音频信号交叉衰落的静态二阶巴特沃斯滤波器。在其它实施例中,预混波器106中的噪声泄漏滤波器可被实施为串联的两个一阶低通滤波器,其中可通过随时间移动滤波器的极点的位置而应用更多或更少滤波,此提供对随时间独立且适应性地限制低频及高频的带宽的控制。这些滤波器的适应性控制可与被识别为噪声的其它频道的数目或VAD可信度度量对应。在其它实施例中,预混波器106中的噪声泄漏滤波器可被实施为通过采用线性预测编码而保留话音的共振峰结构的更复杂带宽限制滤波器。
例如,通常在由混波器104闸控关闭特定频道时,混波器104可衰减所述频道中的音频信号(例如,通过应用-15dB衰减),以便保留房间存在,在各种频道被闸控开启及关闭时具有噪声底限一致性,且减小FEC对迟闸控开启的频道的影响。通过使用上文描述的噪声泄漏滤波器,***100可减小被闸控开启的频道的带宽,使得保留话音可懂度的频率,同时排斥错误噪声的频率。这可导致减轻到被闸控开启的频道中的错误噪声泄漏。
在某些实施例中,为进一步减小错误噪声的贡献,当一或多个频道被VAD 108识别为含有错误噪声时,***100可应用额外衰减(即,从-15dB改变为-25dB)到全部闸控关闭频道且减小这些频道的带宽。
应注意,可在***100中利用标准静态噪声减少技术。在实施例中,VAD 108可利用来自麦克风102的尚未减少噪声的音频信号。VAD 108使用非噪声减少音频信号,使得VAD108可基于音频信号的原始噪声底限而做出其决策可为更佳的。
在此申请案中,转折词的使用旨在包含连接词。定冠词或不定冠词的使用不旨在指示基数。特定来说,对“所述”对象或“一”及“一个”对象的参考还旨在指示可能多个此类对象中的一者。此外,连接词“或”可用于传达同时存在的特征而非相互排斥的替代词。换句话说,连接词“或”应被理解为包含“及/或”。术语“包含(includes、including及include)”是涵盖性的且分别具有与“包括(comprises、comprising及comprise)”相同的范围。
图中的任何过程描述或框应被理解为表示代码的模块、片段或部分,其包含用于实施过程中的特定逻辑功能或步骤的一或多个可执行指令,且如所属领域的一般技术人员将了解,替代实施方案被包含在本发明的实施例的范围内,其中取决于所涉及的功能性,可以与所展示或论述不同的顺序(包含大体上同时或以相反顺序)执行功能。
本公开旨在说明如何根据本技术改变及使用各种实施例而非限制本发明的真实、预期及公平范围以及精神。前述描述并不旨在为详尽的或限于所公开的精确形式。鉴于上文教示的修改或变动是可行的。选取且描述(若干)实施例以提供对所描述技术的原理及其实际应用的最佳说明,且使所属领域的一般技术人员能够在各种实施例中且以适合于所设想的特定用途的各种修改利用本技术。全部此类修改及变动在根据其被公平地、合法地且公正地授权的广度解释时,在如由如可在本专利申请案待审期间修订的所附权利要求书及其全部等效物确定的实施例的范围内。
Claims (21)
1.一种方法,其包括:
确定由混波器最初闸控开启的频道的音频信号中是否存在非话音音频,其中所述混波器基于最初闸控开启的所述频道的至少所述音频信号而生成混合音频信号;及
在确定最初闸控开启的所述频道的所述音频信号中存在所述非话音音频时,通过闸控关闭最初闸控开启的所述频道而更动所述混波器以使所述混波器生成不具有最初闸控开启的所述频道的所述音频信号的所述混合音频信号。
2.根据权利要求1所述的方法,其进一步包括在(1)所述混波器确定闸控开启最初闸控开启的所述频道与(2)确定最初闸控开启的所述频道的所述音频信号中是否存在所述非话音音频之间的持续时间期间最小化最初闸控开启的所述频道的所述音频信号中的前端噪声泄漏。
3.根据权利要求1所述的方法,其进一步包括将非话音去加重滤波器应用到最初闸控开启的所述频道的所述音频信号。
4.根据权利要求3所述的方法,其进一步包括:
确定最初闸控开启的所述频道的所述音频信号中是否存在话音音频;及
当确定最初闸控开启的所述频道的所述音频信号中存在所述话音音频时,从最初闸控开启的所述频道的所述音频信号移除所述非话音去加重滤波器。
5.根据权利要求3所述的方法,其进一步包括在(1)所述混波器确定闸控开启最初闸控开启的所述频道与(2)确定最初闸控开启的所述频道的所述音频信号中是否存在所述非话音音频之间的持续时间消逝之后从最初闸控开启的所述频道的所述音频信号移除所述非话音去加重滤波器。
6.根据权利要求1所述的方法,其进一步包括衰减最初闸控开启的所述频道的所述音频信号。
7.根据权利要求6所述的方法,其进一步包括:
确定最初闸控开启的所述频道的所述音频信号中是否存在话音音频;及
当确定最初闸控开启的所述频道的所述音频信号中存在所述话音音频时,从最初闸控开启的所述频道的所述音频信号移除所述衰减。
8.根据权利要求6所述的方法,其进一步包括在(1)所述混波器确定闸控开启最初闸控开启的所述频道与(2)确定最初闸控开启的所述频道的所述音频信号中是否存在所述非话音音频之间的持续时间消逝之后从最初闸控开启的所述频道的所述音频信号移除所述衰减。
9.根据权利要求1所述的方法,其进一步包括将时变衰减应用到最初闸控开启的所述频道的所述音频信号。
10.根据权利要求9所述的方法,其进一步包括:
确定最初闸控开启的所述频道的所述音频信号中是否存在话音音频;及
当确定最初闸控开启的所述频道的所述音频信号中存在所述话音音频时,从最初闸控开启的所述频道的所述音频信号移除所述时变衰减。
11.根据权利要求9所述的方法,其进一步包括在(1)所述混波器确定闸控开启最初闸控开启的所述频道与(2)确定最初闸控开启的所述频道的所述音频信号中是否存在所述非话音音频之间的持续时间消逝之后从最初闸控开启的所述频道的所述音频信号移除所述时变衰减。
12.根据权利要求1所述的方法,其进一步包括将波峰因子压缩器或波峰因子限制器中的一或多者应用到最初闸控开启的所述频道的所述音频信号。
13.根据权利要求12所述的方法,其进一步包括:
确定最初闸控开启的所述频道的所述音频信号中是否存在话音音频;及
当确定最初闸控开启的所述频道的所述音频信号中存在所述话音音频时,从最初闸控开启的所述频道的所述音频信号移除所述波峰因子压缩器或所述波峰因子限制器中的所述一或多者。
14.根据权利要求12所述的方法,其进一步包括在(1)所述混波器确定闸控开启最初闸控开启的所述频道与(2)确定最初闸控开启的所述频道的所述音频信号中是否存在所述非话音音频之间的持续时间消逝之后从最初闸控开启的所述频道的所述音频信号移除所述波峰因子压缩器或所述波峰因子限制器中的所述一或多者。
15.根据权利要求1所述的方法,其进一步包括当确定最初闸控开启的所述频道的所述音频信号中存在所述非话音音频时,在闸控关闭之后将额外衰减应用到最初闸控开启的所述频道。
16.根据权利要求2所述的方法,其进一步包括基于最初闸控开启的所述频道历史上是否含有所述非话音音频或话音音频而修改与最小化所述前端噪声泄漏相关的参数。
17.根据权利要求1所述的方法,其中更动所述混波器包括通过控制闸控关闭最初闸控开启的所述频道的速率而更动所述混波器。
18.根据权利要求1所述的方法,其进一步包括:
确定最初闸控开启的所述频道的所述音频信号中是否存在话音音频;
确定由所述混波器最初闸控开启的第二频道的第二音频信号中是否存在非话音音频;及
当确定最初闸控开启的所述频道的所述音频信号中存在所述话音音频时且当确定最初闸控开启的所述第二频道的所述第二音频信号中存在所述非话音音频时,将噪声泄漏滤波器应用到最初闸控开启的所述频道的所述音频信号。
19.根据权利要求1所述的方法,其进一步包括基于(1)频道选择规则或(2)最初闸控开启的所述频道的所述音频信号是否含有话音音频而确定闸控开启由所述混波器最初闸控开启的所述频道。
20.一种***,其包括:
活动检测器,其经配置以确定由混波器最初闸控开启的频道的音频信号中是否存在非话音音频,其中所述混波器经配置以基于最初闸控开启的所述频道的至少所述音频信号而生成混合音频信号;及
频道闸控模块,其与所述活动检测器通信,所述频道闸控模块经配置以在由所述活动检测器确定最初闸控开启的所述频道的所述音频信号中存在所述非话音音频时更动所述混波器以使所述混波器:
闸控关闭最初闸控开启的所述频道;及
生成不具有最初闸控开启的所述频道的所述音频信号的所述混合音频信号。
21.根据权利要求20所述的***,其进一步包括预混波器,其与所述混波器通信,所述预混波器经配置以在(1)所述混波器确定闸控开启最初闸控开启的所述频道与(2)所述活动检测器确定最初闸控开启的所述频道的所述音频信号中是否存在所述非话音音频之间的持续时间期间最小化最初闸控开启的所述频道的所述音频信号中的前端噪声泄漏。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US201962855491P | 2019-05-31 | 2019-05-31 | |
US62/855,491 | 2019-05-31 | ||
PCT/US2020/035185 WO2020243471A1 (en) | 2019-05-31 | 2020-05-29 | Low latency automixer integrated with voice and noise activity detection |
Publications (1)
Publication Number | Publication Date |
---|---|
CN114051637A true CN114051637A (zh) | 2022-02-15 |
Family
ID=72179169
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN202080048155.6A Pending CN114051637A (zh) | 2019-05-31 | 2020-05-29 | 集成语音及噪声活动检测的低延时自动混波器 |
Country Status (6)
Country | Link |
---|---|
US (2) | US11302347B2 (zh) |
EP (1) | EP3977449A1 (zh) |
JP (1) | JP2022535229A (zh) |
CN (1) | CN114051637A (zh) |
TW (1) | TW202105369A (zh) |
WO (1) | WO2020243471A1 (zh) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11425261B1 (en) * | 2016-03-10 | 2022-08-23 | Dsp Group Ltd. | Conference call and mobile communication devices that participate in a conference call |
USD946597S1 (en) | 2020-09-30 | 2022-03-22 | Masimo Corporation | Display screen or portion thereof with graphical user interface |
USD946598S1 (en) | 2020-09-30 | 2022-03-22 | Masimo Corporation | Display screen or portion thereof with graphical user interface |
USD946596S1 (en) | 2020-09-30 | 2022-03-22 | Masimo Corporation | Display screen or portion thereof with graphical user interface |
US20240221778A1 (en) | 2023-01-03 | 2024-07-04 | Shure Acquisition Holdings, Inc. | System and method for optimized audio mixing |
Family Cites Families (982)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1535408A (en) | 1923-03-31 | 1925-04-28 | Charles F Fricke | Display device |
US1540788A (en) | 1924-10-24 | 1925-06-09 | Mcclure Edward | Border frame for open-metal-work panels and the like |
US1965830A (en) | 1933-03-18 | 1934-07-10 | Reginald B Hammer | Acoustic device |
US2113219A (en) | 1934-05-31 | 1938-04-05 | Rca Corp | Microphone |
US2075588A (en) | 1936-06-22 | 1937-03-30 | James V Lewis | Mirror and picture frame |
US2233412A (en) | 1937-07-03 | 1941-03-04 | Willis C Hill | Metallic window screen |
US2164655A (en) | 1937-10-28 | 1939-07-04 | Bertel J Kleerup | Stereopticon slide and method and means for producing same |
US2268529A (en) | 1938-11-21 | 1941-12-30 | Alfred H Stiles | Picture mounting means |
US2343037A (en) | 1941-02-27 | 1944-02-29 | William I Adelman | Frame |
US2377449A (en) | 1943-02-02 | 1945-06-05 | Joseph M Prevette | Combination screen and storm door and window |
US2539671A (en) | 1946-02-28 | 1951-01-30 | Rca Corp | Directional microphone |
US2521603A (en) | 1947-03-26 | 1950-09-05 | Pru Lesco Inc | Picture frame securing means |
US2481250A (en) | 1948-05-20 | 1949-09-06 | Gen Motors Corp | Engine starting apparatus |
US2533565A (en) | 1948-07-03 | 1950-12-12 | John M Eichelman | Display device having removable nonrigid panel |
US2828508A (en) | 1954-02-01 | 1958-04-01 | Specialites Alimentaires Bourg | Machine for injection-moulding of plastic articles |
US2777232A (en) | 1954-11-10 | 1957-01-15 | Robert M Kulicke | Picture frame |
US2912605A (en) | 1955-12-05 | 1959-11-10 | Tibbetts Lab Inc | Electromechanical transducer |
US2938113A (en) | 1956-03-17 | 1960-05-24 | Schneil Heinrich | Radio receiving set and housing therefor |
US2840181A (en) | 1956-08-07 | 1958-06-24 | Benjamin H Wildman | Loudspeaker cabinet |
US2882633A (en) | 1957-07-26 | 1959-04-21 | Arlington Aluminum Co | Poster holder |
US2950556A (en) | 1958-11-19 | 1960-08-30 | William E Ford | Foldable frame |
US3019854A (en) | 1959-10-12 | 1962-02-06 | Waitus A O'bryant | Filter for heating and air conditioning ducts |
US3240883A (en) | 1961-05-25 | 1966-03-15 | Shure Bros | Microphone |
US3132713A (en) | 1961-05-25 | 1964-05-12 | Shure Bros | Microphone diaphragm |
US3143182A (en) | 1961-07-17 | 1964-08-04 | E J Mosher | Sound reproducers |
US3160225A (en) | 1962-04-18 | 1964-12-08 | Edward L Sechrist | Sound reproduction system |
US3161975A (en) | 1962-11-08 | 1964-12-22 | John L Mcmillan | Picture frame |
US3205601A (en) | 1963-06-11 | 1965-09-14 | Gawne Daniel | Display holder |
US3239973A (en) | 1964-01-24 | 1966-03-15 | Johns Manville | Acoustical glass fiber panel with diaphragm action and controlled flow resistance |
US3906431A (en) | 1965-04-09 | 1975-09-16 | Us Navy | Search and track sonar system |
US3310901A (en) | 1965-06-15 | 1967-03-28 | Sarkisian Robert | Display holder |
US3321170A (en) | 1965-09-21 | 1967-05-23 | Earl F Vye | Magnetic adjustable pole piece strip heater clamp |
US3509290A (en) | 1966-05-03 | 1970-04-28 | Nippon Musical Instruments Mfg | Flat-plate type loudspeaker with frame mounted drivers |
DE1772445A1 (de) | 1968-05-16 | 1971-03-04 | Niezoldi & Kraemer Gmbh | Kamera mit eingebauten,in den Strahlengang des Aufnahmelichts bewegbaren Farbfiltern |
US3573399A (en) | 1968-08-14 | 1971-04-06 | Bell Telephone Labor Inc | Directional microphone |
AT284927B (de) | 1969-03-04 | 1970-10-12 | Eumig | Rohrrichtmikrophon |
JPS5028944B1 (zh) | 1970-12-04 | 1975-09-19 | ||
US3857191A (en) | 1971-02-08 | 1974-12-31 | Talkies Usa Inc | Visual-audio device |
US3696885A (en) | 1971-08-19 | 1972-10-10 | Electronic Res Ass | Decorative loudspeakers |
US3755625A (en) | 1971-10-12 | 1973-08-28 | Bell Telephone Labor Inc | Multimicrophone loudspeaking telephone system |
US3936606A (en) | 1971-12-07 | 1976-02-03 | Wanke Ronald L | Acoustic abatement method and apparatus |
US3828508A (en) | 1972-07-31 | 1974-08-13 | W Moeller | Tile device for joining permanent ceiling tile to removable ceiling tile |
US3895194A (en) | 1973-05-29 | 1975-07-15 | Thermo Electron Corp | Directional condenser electret microphone |
US3938617A (en) | 1974-01-17 | 1976-02-17 | Fort Enterprises, Limited | Speaker enclosure |
JPS5215972B2 (zh) | 1974-02-28 | 1977-05-06 | ||
US4029170A (en) | 1974-09-06 | 1977-06-14 | B & P Enterprises, Inc. | Radial sound port speaker |
US3941638A (en) | 1974-09-18 | 1976-03-02 | Reginald Patrick Horky | Manufactured relief-sculptured sound grills (used for covering the sound producing side and/or front of most manufactured sound speaker enclosures) and the manufacturing process for the said grills |
US4212133A (en) | 1975-03-14 | 1980-07-15 | Lufkin Lindsey D | Picture frame vase |
US3992584A (en) | 1975-05-09 | 1976-11-16 | Dugan Daniel W | Automatic microphone mixer |
JPS51137507A (en) | 1975-05-21 | 1976-11-27 | Asano Tetsukoujiyo Kk | Printing machine |
US4007461A (en) | 1975-09-05 | 1977-02-08 | Field Operations Bureau Of The Federal Communications Commission | Antenna system for deriving cardiod patterns |
US4070547A (en) | 1976-01-08 | 1978-01-24 | Superscope, Inc. | One-point stereo microphone |
US4072821A (en) | 1976-05-10 | 1978-02-07 | Cbs Inc. | Microphone system for producing signals for quadraphonic reproduction |
JPS536565U (zh) | 1976-07-02 | 1978-01-20 | ||
US4032725A (en) | 1976-09-07 | 1977-06-28 | Motorola, Inc. | Speaker mounting |
US4096353A (en) | 1976-11-02 | 1978-06-20 | Cbs Inc. | Microphone system for producing signals for quadraphonic reproduction |
US4169219A (en) | 1977-03-30 | 1979-09-25 | Beard Terry D | Compander noise reduction method and apparatus |
FR2390864A1 (fr) | 1977-05-09 | 1978-12-08 | France Etat | Systeme d'audioconference par liaison telephonique |
US4237339A (en) | 1977-11-03 | 1980-12-02 | The Post Office | Audio teleconferencing |
USD255234S (en) | 1977-11-22 | 1980-06-03 | Ronald Wellward | Ceiling speaker |
US4131760A (en) | 1977-12-07 | 1978-12-26 | Bell Telephone Laboratories, Incorporated | Multiple microphone dereverberation system |
US4127156A (en) | 1978-01-03 | 1978-11-28 | Brandt James R | Burglar-proof screening |
USD256015S (en) | 1978-03-20 | 1980-07-22 | Epicure Products, Inc. | Loudspeaker mounting bracket |
DE2821294B2 (de) | 1978-05-16 | 1980-03-13 | Deutsche Texaco Ag, 2000 Hamburg | Phenolaldehydharz, Verfahren zu seiner Herstellung und seine Verwendung |
JPS54157617A (en) | 1978-05-31 | 1979-12-12 | Kyowa Electric & Chemical | Method of manufacturing cloth coated speaker box and material therefor |
US4305141A (en) | 1978-06-09 | 1981-12-08 | The Stoneleigh Trust | Low-frequency directional sonar systems |
US4198705A (en) | 1978-06-09 | 1980-04-15 | The Stoneleigh Trust, Donald P. Massa and Fred M. Dellorfano, Trustees | Directional energy receiving systems for use in the automatic indication of the direction of arrival of the received signal |
US4334740A (en) | 1978-09-12 | 1982-06-15 | Polaroid Corporation | Receiving system having pre-selected directional response |
JPS5546033A (en) | 1978-09-27 | 1980-03-31 | Nissan Motor Co Ltd | Electronic control fuel injection system |
JPS5910119B2 (ja) | 1979-04-26 | 1984-03-07 | 日本ビクター株式会社 | 可変指向性マイクロホン |
US4254417A (en) | 1979-08-20 | 1981-03-03 | The United States Of America As Represented By The Secretary Of The Navy | Beamformer for arrays with rotational symmetry |
DE2941485A1 (de) | 1979-10-10 | 1981-04-23 | Hans-Josef 4300 Essen Hasenäcker | Hoererlose fernsprechzelle |
SE418665B (sv) | 1979-10-16 | 1981-06-15 | Gustav Georg Arne Bolin | Sett att forbettra akustiken i en lokal |
US4311874A (en) | 1979-12-17 | 1982-01-19 | Bell Telephone Laboratories, Incorporated | Teleconference microphone arrays |
US4330691A (en) | 1980-01-31 | 1982-05-18 | The Futures Group, Inc. | Integral ceiling tile-loudspeaker system |
US4296280A (en) | 1980-03-17 | 1981-10-20 | Richie Ronald A | Wall mounted speaker system |
JPS5710598A (en) | 1980-06-20 | 1982-01-20 | Sony Corp | Transmitting circuit of microphone output |
US4373191A (en) | 1980-11-10 | 1983-02-08 | Motorola Inc. | Absolute magnitude difference function generator for an LPC system |
US4393631A (en) | 1980-12-03 | 1983-07-19 | Krent Edward D | Three-dimensional acoustic ceiling tile system for dispersing long wave sound |
US4365449A (en) | 1980-12-31 | 1982-12-28 | James P. Liautaud | Honeycomb framework system for drop ceilings |
AT371969B (de) | 1981-11-19 | 1983-08-25 | Akg Akustische Kino Geraete | Mikrophon zur stereophonischen aufnahme akustischer ereignisse |
US4436966A (en) | 1982-03-15 | 1984-03-13 | Darome, Inc. | Conference microphone unit |
US4429850A (en) | 1982-03-25 | 1984-02-07 | Uniweb, Inc. | Display panel shelf bracket |
US4449238A (en) | 1982-03-25 | 1984-05-15 | Bell Telephone Laboratories, Incorporated | Voice-actuated switching system |
DE3331440C2 (de) | 1982-09-01 | 1987-04-23 | Victor Company Of Japan, Ltd., Yokohama, Kanagawa | Phasengesteuerte Schallaufnehmeranordnung mit im wesentlichen langgestreckter Anordnung von Mikrofonen |
US4489442A (en) | 1982-09-30 | 1984-12-18 | Shure Brothers, Inc. | Sound actuated microphone system |
US4485484A (en) | 1982-10-28 | 1984-11-27 | At&T Bell Laboratories | Directable microphone system |
US4518826A (en) | 1982-12-22 | 1985-05-21 | Mountain Systems, Inc. | Vandal-proof communication system |
FR2542549B1 (fr) | 1983-03-09 | 1987-09-04 | Lemaitre Guy | Diffuseur acoustique en angle plan |
US4669108A (en) | 1983-05-23 | 1987-05-26 | Teleconferencing Systems International Inc. | Wireless hands-free conference telephone system |
USD285067S (en) | 1983-07-18 | 1986-08-12 | Pascal Delbuck | Loudspeaker |
CA1202713A (en) | 1984-03-16 | 1986-04-01 | Beverley W. Gumb | Transmitter assembly for a telephone handset |
US4712231A (en) | 1984-04-06 | 1987-12-08 | Shure Brothers, Inc. | Teleconference system |
US4696043A (en) | 1984-08-24 | 1987-09-22 | Victor Company Of Japan, Ltd. | Microphone apparatus having a variable directivity pattern |
US4675906A (en) | 1984-12-20 | 1987-06-23 | At&T Company, At&T Bell Laboratories | Second order toroidal microphone |
US4658425A (en) | 1985-04-19 | 1987-04-14 | Shure Brothers, Inc. | Microphone actuation control system suitable for teleconference systems |
US4815132A (en) | 1985-08-30 | 1989-03-21 | Kabushiki Kaisha Toshiba | Stereophonic voice signal transmission system |
US4752961A (en) | 1985-09-23 | 1988-06-21 | Northern Telecom Limited | Microphone arrangement |
US4625827A (en) | 1985-10-16 | 1986-12-02 | Crown International, Inc. | Microphone windscreen |
US4653102A (en) | 1985-11-05 | 1987-03-24 | Position Orientation Systems | Directional microphone system |
US4693174A (en) | 1986-05-09 | 1987-09-15 | Anderson Philip K | Air deflecting means for use with air outlets defined in dropped ceiling constructions |
US4860366A (en) | 1986-07-31 | 1989-08-22 | Nec Corporation | Teleconference system using expanders for emphasizing a desired signal with respect to undesired signals |
US4741038A (en) | 1986-09-26 | 1988-04-26 | American Telephone And Telegraph Company, At&T Bell Laboratories | Sound location arrangement |
JPH0657079B2 (ja) | 1986-12-08 | 1994-07-27 | 日本電信電話株式会社 | 複数対のマイクロホン出力の位相切替収音装置 |
US4862507A (en) | 1987-01-16 | 1989-08-29 | Shure Brothers, Inc. | Microphone acoustical polar pattern converter |
NL8701633A (nl) | 1987-07-10 | 1989-02-01 | Philips Nv | Digitale echocompensator. |
US4805730A (en) | 1988-01-11 | 1989-02-21 | Peavey Electronics Corporation | Loudspeaker enclosure |
US4866868A (en) | 1988-02-24 | 1989-09-19 | Ntg Industries, Inc. | Display device |
JPH01260967A (ja) | 1988-04-11 | 1989-10-18 | Nec Corp | 多チヤネル信号用音声会議装置 |
US4969197A (en) | 1988-06-10 | 1990-11-06 | Murata Manufacturing | Piezoelectric speaker |
JP2748417B2 (ja) | 1988-07-30 | 1998-05-06 | ソニー株式会社 | マイクロホン装置 |
US4881135A (en) | 1988-09-23 | 1989-11-14 | Heilweil Jordan B | Concealed audio-video apparatus for recording conferences and meetings |
US4928312A (en) | 1988-10-17 | 1990-05-22 | Amel Hill | Acoustic transducer |
US4888807A (en) | 1989-01-18 | 1989-12-19 | Audio-Technica U.S., Inc. | Variable pattern microphone system |
JPH0728470B2 (ja) | 1989-02-03 | 1995-03-29 | 松下電器産業株式会社 | アレイマイクロホン |
USD329239S (en) | 1989-06-26 | 1992-09-08 | PRS, Inc. | Recessed speaker grill |
US4923032A (en) | 1989-07-21 | 1990-05-08 | Nuernberger Mark A | Ceiling panel sound system |
US5000286A (en) | 1989-08-15 | 1991-03-19 | Klipsch And Associates, Inc. | Modular loudspeaker system |
USD324780S (en) | 1989-09-27 | 1992-03-24 | Sebesta Walter C | Combined picture frame and golf ball rack |
US5121426A (en) | 1989-12-22 | 1992-06-09 | At&T Bell Laboratories | Loudspeaking telephone station including directional microphone |
US5038935A (en) | 1990-02-21 | 1991-08-13 | Uniek Plastics, Inc. | Storage and display unit for photographic prints |
US5088574A (en) | 1990-04-16 | 1992-02-18 | Kertesz Iii Emery | Ceiling speaker system |
AT407815B (de) | 1990-07-13 | 2001-06-25 | Viennatone Gmbh | Hörgerät |
US5550925A (en) | 1991-01-07 | 1996-08-27 | Canon Kabushiki Kaisha | Sound processing device |
JP2792252B2 (ja) | 1991-03-14 | 1998-09-03 | 日本電気株式会社 | 多チャンネルエコー除去方法および装置 |
US5204907A (en) | 1991-05-28 | 1993-04-20 | Motorola, Inc. | Noise cancelling microphone and boot mounting arrangement |
US5353279A (en) | 1991-08-29 | 1994-10-04 | Nec Corporation | Echo canceler |
USD345346S (en) | 1991-10-18 | 1994-03-22 | International Business Machines Corp. | Pen-based computer |
US5189701A (en) | 1991-10-25 | 1993-02-23 | Micom Communications Corp. | Voice coder/decoder and methods of coding/decoding |
USD340718S (en) | 1991-12-20 | 1993-10-26 | Square D Company | Speaker frame assembly |
US5289544A (en) | 1991-12-31 | 1994-02-22 | Audiological Engineering Corporation | Method and apparatus for reducing background noise in communication systems and for enhancing binaural hearing systems for the hearing impaired |
US5322979A (en) | 1992-01-08 | 1994-06-21 | Cassity Terry A | Speaker cover assembly |
JP2792311B2 (ja) | 1992-01-31 | 1998-09-03 | 日本電気株式会社 | 多チャンネルエコー除去方法および装置 |
JPH05260589A (ja) | 1992-03-10 | 1993-10-08 | Nippon Hoso Kyokai <Nhk> | 焦点収音方法 |
US5297210A (en) | 1992-04-10 | 1994-03-22 | Shure Brothers, Incorporated | Microphone actuation control system |
USD345379S (en) | 1992-07-06 | 1994-03-22 | Canadian Moulded Products Inc. | Card holder |
US5383293A (en) | 1992-08-27 | 1995-01-24 | Royal; John D. | Picture frame arrangement |
JPH06104970A (ja) | 1992-09-18 | 1994-04-15 | Fujitsu Ltd | 拡声電話機 |
US5307405A (en) | 1992-09-25 | 1994-04-26 | Qualcomm Incorporated | Network echo canceller |
US5400413A (en) | 1992-10-09 | 1995-03-21 | Dana Innovations | Pre-formed speaker grille cloth |
IT1257164B (it) | 1992-10-23 | 1996-01-05 | Ist Trentino Di Cultura | Procedimento per la localizzazione di un parlatore e l'acquisizione diun messaggio vocale, e relativo sistema. |
JP2508574B2 (ja) | 1992-11-10 | 1996-06-19 | 日本電気株式会社 | 多チャンネルエコ―除去装置 |
US5406638A (en) | 1992-11-25 | 1995-04-11 | Hirschhorn; Bruce D. | Automated conference system |
US5359374A (en) | 1992-12-14 | 1994-10-25 | Talking Frames Corp. | Talking picture frames |
US5335011A (en) | 1993-01-12 | 1994-08-02 | Bell Communications Research, Inc. | Sound localization system for teleconferencing using self-steering microphone arrays |
US5329593A (en) | 1993-05-10 | 1994-07-12 | Lazzeroni John J | Noise cancelling microphone |
US5555447A (en) | 1993-05-14 | 1996-09-10 | Motorola, Inc. | Method and apparatus for mitigating speech loss in a communication system |
JPH084243B2 (ja) | 1993-05-31 | 1996-01-17 | 日本電気株式会社 | 多チャンネルエコー除去方法および装置 |
EP0707763B1 (en) | 1993-07-07 | 2001-08-29 | Picturetel Corporation | Reduction of background noise for speech enhancement |
US5657393A (en) | 1993-07-30 | 1997-08-12 | Crow; Robert P. | Beamed linear array microphone system |
DE4330243A1 (de) | 1993-09-07 | 1995-03-09 | Philips Patentverwaltung | Sprachverarbeitungseinrichtung |
US5525765A (en) | 1993-09-08 | 1996-06-11 | Wenger Corporation | Acoustical virtual environment |
US5664021A (en) | 1993-10-05 | 1997-09-02 | Picturetel Corporation | Microphone system for teleconferencing system |
US5473701A (en) | 1993-11-05 | 1995-12-05 | At&T Corp. | Adaptive microphone array |
USD363045S (en) | 1994-03-29 | 1995-10-10 | Phillips Verla D | Wall plaque |
JPH07336790A (ja) | 1994-06-13 | 1995-12-22 | Nec Corp | マイクロホンシステム |
US5509634A (en) | 1994-09-28 | 1996-04-23 | Femc Ltd. | Self adjusting glass shelf label holder |
JP3397269B2 (ja) | 1994-10-26 | 2003-04-14 | 日本電信電話株式会社 | 多チャネル反響消去方法 |
NL9401860A (nl) | 1994-11-08 | 1996-06-03 | Duran Bv | Luidsprekersysteem met bestuurde richtinggevoeligheid. |
US5633936A (en) | 1995-01-09 | 1997-05-27 | Texas Instruments Incorporated | Method and apparatus for detecting a near-end speech signal |
US5645257A (en) | 1995-03-31 | 1997-07-08 | Metro Industries, Inc. | Adjustable support apparatus |
USD382118S (en) | 1995-04-17 | 1997-08-12 | Kimberly-Clark Tissue Company | Paper towel |
US6731334B1 (en) | 1995-07-31 | 2004-05-04 | Forgent Networks, Inc. | Automatic voice tracking camera system and method of operation |
WO1997008896A1 (en) | 1995-08-23 | 1997-03-06 | Scientific-Atlanta, Inc. | Open area security system |
US6285770B1 (en) | 1995-09-02 | 2001-09-04 | New Transducers Limited | Noticeboards incorporating loudspeakers |
US6198831B1 (en) | 1995-09-02 | 2001-03-06 | New Transducers Limited | Panel-form loudspeakers |
US6215881B1 (en) | 1995-09-02 | 2001-04-10 | New Transducers Limited | Ceiling tile loudspeaker |
KR19990044330A (ko) | 1995-09-02 | 1999-06-25 | 헨리 에이지마 | 패널형 라우드스피커 |
CA2186416C (en) | 1995-09-26 | 2000-04-18 | Suehiro Shimauchi | Method and apparatus for multi-channel acoustic echo cancellation |
US5766702A (en) | 1995-10-05 | 1998-06-16 | Lin; Chii-Hsiung | Laminated ornamental glass |
US5768263A (en) | 1995-10-20 | 1998-06-16 | Vtel Corporation | Method for talk/listen determination and multipoint conferencing system using such method |
US6125179A (en) | 1995-12-13 | 2000-09-26 | 3Com Corporation | Echo control device with quick response to sudden echo-path change |
US6144746A (en) | 1996-02-09 | 2000-11-07 | New Transducers Limited | Loudspeakers comprising panel-form acoustic radiating elements |
US5673327A (en) | 1996-03-04 | 1997-09-30 | Julstrom; Stephen D. | Microphone mixer |
US5888412A (en) | 1996-03-04 | 1999-03-30 | Motorola, Inc. | Method for making a sculptured diaphragm |
US5706344A (en) | 1996-03-29 | 1998-01-06 | Digisonix, Inc. | Acoustic echo cancellation in an integrated audio and telecommunication system |
US5717171A (en) | 1996-05-09 | 1998-02-10 | The Solar Corporation | Acoustical cabinet grille frame |
US5848146A (en) | 1996-05-10 | 1998-12-08 | Rane Corporation | Audio system for conferencing/presentation room |
US6205224B1 (en) | 1996-05-17 | 2001-03-20 | The Boeing Company | Circularly symmetric, zero redundancy, planar array having broad frequency range applications |
US5715319A (en) | 1996-05-30 | 1998-02-03 | Picturetel Corporation | Method and apparatus for steerable and endfire superdirective microphone arrays with reduced analog-to-digital converter and computational requirements |
US5796819A (en) | 1996-07-24 | 1998-08-18 | Ericsson Inc. | Echo canceller for non-linear circuits |
KR100212314B1 (ko) | 1996-11-06 | 1999-08-02 | 윤종용 | 액정 디스플레이 장치의 스탠드구조 |
US5888439A (en) | 1996-11-14 | 1999-03-30 | The Solar Corporation | Method of molding an acoustical cabinet grille frame |
JP3797751B2 (ja) | 1996-11-27 | 2006-07-19 | 富士通株式会社 | マイクロホンシステム |
US6151399A (en) | 1996-12-31 | 2000-11-21 | Etymotic Research, Inc. | Directional microphone system providing for ease of assembly and disassembly |
US5878147A (en) | 1996-12-31 | 1999-03-02 | Etymotic Research, Inc. | Directional microphone assembly |
US6301357B1 (en) | 1996-12-31 | 2001-10-09 | Ericsson Inc. | AC-center clipper for noise and echo suppression in a communications system |
US7881486B1 (en) | 1996-12-31 | 2011-02-01 | Etymotic Research, Inc. | Directional microphone assembly |
US5870482A (en) | 1997-02-25 | 1999-02-09 | Knowles Electronics, Inc. | Miniature silicon condenser microphone |
JP3175622B2 (ja) | 1997-03-03 | 2001-06-11 | ヤマハ株式会社 | 演奏音場制御装置 |
USD392977S (en) | 1997-03-11 | 1998-03-31 | LG Fosta Ltd. | Speaker |
US6041127A (en) | 1997-04-03 | 2000-03-21 | Lucent Technologies Inc. | Steerable and variable first-order differential microphone array |
AU6515798A (en) | 1997-04-16 | 1998-11-11 | Isight Ltd. | Video teleconferencing |
FR2762467B1 (fr) | 1997-04-16 | 1999-07-02 | France Telecom | Procede d'annulation d'echo acoustique multi-voies et annuleur d'echo acoustique multi-voies |
US6633647B1 (en) | 1997-06-30 | 2003-10-14 | Hewlett-Packard Development Company, L.P. | Method of custom designing directional responses for a microphone of a portable computer |
USD394061S (en) | 1997-07-01 | 1998-05-05 | Windsor Industries, Inc. | Combined computer-style radio and alarm clock |
US6137887A (en) | 1997-09-16 | 2000-10-24 | Shure Incorporated | Directional microphone system |
NL1007321C2 (nl) | 1997-10-20 | 1999-04-21 | Univ Delft Tech | Gehoorinrichting voor het verbeteren van de verstaanbaarheid voor slechthorenden. |
US6563803B1 (en) | 1997-11-26 | 2003-05-13 | Qualcomm Incorporated | Acoustic echo canceller |
US6039457A (en) | 1997-12-17 | 2000-03-21 | Intex Exhibits International, L.L.C. | Light bracket |
US6393129B1 (en) | 1998-01-07 | 2002-05-21 | American Technology Corporation | Paper structures for speaker transducers |
US6505057B1 (en) | 1998-01-23 | 2003-01-07 | Digisonix Llc | Integrated vehicle voice enhancement system and hands-free cellular telephone system |
WO1999042981A1 (en) | 1998-02-20 | 1999-08-26 | Display Edge Technology Ltd. | Shelf-edge display system |
US6895093B1 (en) | 1998-03-03 | 2005-05-17 | Texas Instruments Incorporated | Acoustic echo-cancellation system |
DE69908463T2 (de) | 1998-03-05 | 2004-05-13 | Nippon Telegraph And Telephone Corp. | Verfahren und Einrichtung zur mehrkanaligen Kompensation eines akustischen Echos |
DE69903012T2 (de) | 1998-04-08 | 2003-04-30 | British Telecommunications P.L.C., London | Echokompensation |
US6173059B1 (en) | 1998-04-24 | 2001-01-09 | Gentner Communications Corporation | Teleconferencing system with visual feedback |
JP4641620B2 (ja) | 1998-05-11 | 2011-03-02 | エヌエックスピー ビー ヴィ | ピッチ検出の精密化 |
US6442272B1 (en) | 1998-05-26 | 2002-08-27 | Tellabs, Inc. | Voice conferencing system having local sound amplification |
US6266427B1 (en) | 1998-06-19 | 2001-07-24 | Mcdonnell Douglas Corporation | Damped structural panel and method of making same |
USD416315S (en) | 1998-09-01 | 1999-11-09 | Fujitsu General Limited | Air conditioner |
USD424538S (en) | 1998-09-14 | 2000-05-09 | Fujitsu General Limited | Display device |
US6049607A (en) | 1998-09-18 | 2000-04-11 | Lamar Signal Processing | Interference canceling method and apparatus |
US6424635B1 (en) | 1998-11-10 | 2002-07-23 | Nortel Networks Limited | Adaptive nonlinear processor for echo cancellation |
US6526147B1 (en) | 1998-11-12 | 2003-02-25 | Gn Netcom A/S | Microphone array with high directivity |
US7068801B1 (en) | 1998-12-18 | 2006-06-27 | National Research Council Of Canada | Microphone array diffracting structure |
KR100298300B1 (ko) | 1998-12-29 | 2002-05-01 | 강상훈 | 포만트유사도측정에의한피솔라를이용한음성파형부호화방식 |
US6507659B1 (en) | 1999-01-25 | 2003-01-14 | Cascade Audio, Inc. | Microphone apparatus for producing signals for surround reproduction |
US6035962A (en) | 1999-02-24 | 2000-03-14 | Lin; Chih-Hsiung | Easily-combinable and movable speaker case |
US7423983B1 (en) | 1999-09-20 | 2008-09-09 | Broadcom Corporation | Voice and data exchange over a packet based network |
US7558381B1 (en) | 1999-04-22 | 2009-07-07 | Agere Systems Inc. | Retrieval of deleted voice messages in voice messaging system |
JP3789685B2 (ja) | 1999-07-02 | 2006-06-28 | 富士通株式会社 | マイクロホンアレイ装置 |
US6889183B1 (en) | 1999-07-15 | 2005-05-03 | Nortel Networks Limited | Apparatus and method of regenerating a lost audio segment |
US20050286729A1 (en) | 1999-07-23 | 2005-12-29 | George Harwood | Flat speaker with a flat membrane diaphragm |
US7577260B1 (en) | 1999-09-29 | 2009-08-18 | Cambridge Mechatronics Limited | Method and apparatus to direct sound |
USD432518S (en) | 1999-10-01 | 2000-10-24 | Keiko Muto | Audio system |
US6868377B1 (en) | 1999-11-23 | 2005-03-15 | Creative Technology Ltd. | Multiband phase-vocoder for the modification of audio or speech signals |
US6704423B2 (en) | 1999-12-29 | 2004-03-09 | Etymotic Research, Inc. | Hearing aid assembly having external directional microphone |
US6449593B1 (en) | 2000-01-13 | 2002-09-10 | Nokia Mobile Phones Ltd. | Method and system for tracking human speakers |
US20020140633A1 (en) | 2000-02-03 | 2002-10-03 | Canesta, Inc. | Method and system to present immersion virtual simulations using three-dimensional measurement |
US6488367B1 (en) | 2000-03-14 | 2002-12-03 | Eastman Kodak Company | Electroformed metal diaphragm |
US6741720B1 (en) | 2000-04-19 | 2004-05-25 | Russound/Fmp, Inc. | In-wall loudspeaker system |
US6993126B1 (en) | 2000-04-28 | 2006-01-31 | Clearsonics Pty Ltd | Apparatus and method for detecting far end speech |
DE60129955D1 (de) | 2000-05-26 | 2007-09-27 | Koninkl Philips Electronics Nv | Verfahren und gerät zur akustischen echounterdrückung mit adaptiver strahlbildung |
US6944312B2 (en) | 2000-06-15 | 2005-09-13 | Valcom, Inc. | Lay-in ceiling speaker |
US6329908B1 (en) | 2000-06-23 | 2001-12-11 | Armstrong World Industries, Inc. | Addressable speaker system |
US6622030B1 (en) | 2000-06-29 | 2003-09-16 | Ericsson Inc. | Echo suppression using adaptive gain based on residual echo energy |
US8019091B2 (en) | 2000-07-19 | 2011-09-13 | Aliphcom, Inc. | Voice activity detector (VAD) -based multiple-microphone acoustic noise suppression |
USD453016S1 (en) | 2000-07-20 | 2002-01-22 | B & W Loudspeakers Limited | Loudspeaker unit |
US6386315B1 (en) | 2000-07-28 | 2002-05-14 | Awi Licensing Company | Flat panel sound radiator and assembly system |
US6481173B1 (en) | 2000-08-17 | 2002-11-19 | Awi Licensing Company | Flat panel sound radiator with special edge details |
US6510919B1 (en) | 2000-08-30 | 2003-01-28 | Awi Licensing Company | Facing system for a flat panel radiator |
DE60010457T2 (de) | 2000-09-02 | 2006-03-02 | Nokia Corp. | Vorrichtung und Verfahren zur Verarbeitung eines Signales emittiert von einer Zielsignalquelle in einer geräuschvollen Umgebung |
US6968064B1 (en) | 2000-09-29 | 2005-11-22 | Forgent Networks, Inc. | Adaptive thresholds in acoustic echo canceller for use during double talk |
ATE548862T1 (de) | 2000-10-05 | 2012-03-15 | Etymotic Res Inc | Richtmikrofonbaugruppe |
GB2367730B (en) | 2000-10-06 | 2005-04-27 | Mitel Corp | Method and apparatus for minimizing far-end speech effects in hands-free telephony systems using acoustic beamforming |
US6963649B2 (en) | 2000-10-24 | 2005-11-08 | Adaptive Technologies, Inc. | Noise cancelling microphone |
EP1202602B1 (en) | 2000-10-25 | 2013-05-15 | Panasonic Corporation | Zoom microphone device |
US6704422B1 (en) | 2000-10-26 | 2004-03-09 | Widex A/S | Method for controlling the directionality of the sound receiving characteristic of a hearing aid a hearing aid for carrying out the method |
US6757393B1 (en) | 2000-11-03 | 2004-06-29 | Marie L. Spitzer | Wall-hanging entertainment system |
JP4110734B2 (ja) | 2000-11-27 | 2008-07-02 | 沖電気工業株式会社 | 音声パケット通信の品質制御装置 |
US7092539B2 (en) | 2000-11-28 | 2006-08-15 | University Of Florida Research Foundation, Inc. | MEMS based acoustic array |
US7092882B2 (en) | 2000-12-06 | 2006-08-15 | Ncr Corporation | Noise suppression in beam-steered microphone array |
JP4734714B2 (ja) | 2000-12-22 | 2011-07-27 | ヤマハ株式会社 | 収音再生方法およびその装置 |
US6768795B2 (en) | 2001-01-11 | 2004-07-27 | Telefonaktiebolaget Lm Ericsson (Publ) | Side-tone control within a telecommunication instrument |
WO2002060057A1 (en) | 2001-01-23 | 2002-08-01 | Koninklijke Philips Electronics N.V. | Asymmetric multichannel filter |
USD474939S1 (en) | 2001-02-20 | 2003-05-27 | Wouter De Neubourg | Mug I |
US20020126861A1 (en) | 2001-03-12 | 2002-09-12 | Chester Colby | Audio expander |
US20020131580A1 (en) | 2001-03-16 | 2002-09-19 | Shure Incorporated | Solid angle cross-talk cancellation for beamforming arrays |
GB2376595B (en) | 2001-03-27 | 2003-12-24 | 1 Ltd | Method and apparatus to create a sound field |
JP3506138B2 (ja) | 2001-07-11 | 2004-03-15 | ヤマハ株式会社 | 複数チャンネルエコーキャンセル方法、複数チャンネル音声伝送方法、ステレオエコーキャンセラ、ステレオ音声伝送装置および伝達関数演算装置 |
JP2004537232A (ja) | 2001-07-20 | 2004-12-09 | コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ | 多数のマイクロフォンのエコーを抑圧する回路をポストプロセッサとして有する音響補強システム |
WO2003010996A2 (en) | 2001-07-20 | 2003-02-06 | Koninklijke Philips Electronics N.V. | Sound reinforcement system having an echo suppressor and loudspeaker beamformer |
US7013267B1 (en) | 2001-07-30 | 2006-03-14 | Cisco Technology, Inc. | Method and apparatus for reconstructing voice information |
US7068796B2 (en) | 2001-07-31 | 2006-06-27 | Moorer James A | Ultra-directional microphones |
JP3727258B2 (ja) | 2001-08-13 | 2005-12-14 | 富士通株式会社 | エコー抑制処理システム |
GB2379148A (en) | 2001-08-21 | 2003-02-26 | Mitel Knowledge Corp | Voice activity detection |
GB0121206D0 (en) | 2001-08-31 | 2001-10-24 | Mitel Knowledge Corp | System and method of indicating and controlling sound pickup direction and location in a teleconferencing system |
US7298856B2 (en) | 2001-09-05 | 2007-11-20 | Nippon Hoso Kyokai | Chip microphone and method of making same |
US20030059061A1 (en) | 2001-09-14 | 2003-03-27 | Sony Corporation | Audio input unit, audio input method and audio input and output unit |
JP2003087890A (ja) | 2001-09-14 | 2003-03-20 | Sony Corp | 音声入力装置及び音声入力方法 |
USD469090S1 (en) | 2001-09-17 | 2003-01-21 | Sharp Kabushiki Kaisha | Monitor for a computer |
JP3568922B2 (ja) | 2001-09-20 | 2004-09-22 | 三菱電機株式会社 | エコー処理装置 |
US7065224B2 (en) | 2001-09-28 | 2006-06-20 | Sonionmicrotronic Nederland B.V. | Microphone for a hearing aid or listening device with improved internal damping and foreign material protection |
US7120269B2 (en) | 2001-10-05 | 2006-10-10 | Lowell Manufacturing Company | Lay-in tile speaker system |
US7239714B2 (en) | 2001-10-09 | 2007-07-03 | Sonion Nederland B.V. | Microphone having a flexible printed circuit board for mounting components |
GB0124352D0 (en) | 2001-10-11 | 2001-11-28 | 1 Ltd | Signal processing device for acoustic transducer array |
CA2359771A1 (en) | 2001-10-22 | 2003-04-22 | Dspfactory Ltd. | Low-resource real-time audio synthesis system and method |
JP4282260B2 (ja) | 2001-11-20 | 2009-06-17 | 株式会社リコー | エコーキャンセラ |
US7146016B2 (en) | 2001-11-27 | 2006-12-05 | Center For National Research Initiatives | Miniature condenser microphone and fabrication method therefor |
US6665971B2 (en) | 2001-11-27 | 2003-12-23 | Fast Industries, Ltd. | Label holder with dust cover |
US20030107478A1 (en) | 2001-12-06 | 2003-06-12 | Hendricks Richard S. | Architectural sound enhancement system |
US7130430B2 (en) | 2001-12-18 | 2006-10-31 | Milsap Jeffrey P | Phased array sound system |
US6592237B1 (en) | 2001-12-27 | 2003-07-15 | John M. Pledger | Panel frame to draw air around light fixtures |
US20030122777A1 (en) | 2001-12-31 | 2003-07-03 | Grover Andrew S. | Method and apparatus for configuring a computer system based on user distance |
WO2003061167A2 (en) | 2002-01-18 | 2003-07-24 | Polycom, Inc. | Digital linking of multiple microphone systems |
US8098844B2 (en) | 2002-02-05 | 2012-01-17 | Mh Acoustics, Llc | Dual-microphone spatial noise suppression |
US7130309B2 (en) | 2002-02-20 | 2006-10-31 | Intel Corporation | Communication device with dynamic delay compensation and method for communicating voice over a packet-switched network |
DE10208465A1 (de) | 2002-02-27 | 2003-09-18 | Bsh Bosch Siemens Hausgeraete | Elektrisches Gerät, insbesondere Dunstabzugshaube |
US20030161485A1 (en) * | 2002-02-27 | 2003-08-28 | Shure Incorporated | Multiple beam automatic mixing microphone array processing via speech detection |
US20030169888A1 (en) | 2002-03-08 | 2003-09-11 | Nikolas Subotic | Frequency dependent acoustic beam forming and nulling |
DK174558B1 (da) | 2002-03-15 | 2003-06-02 | Bruel & Kjaer Sound & Vibratio | Stråleformende transducer-antennesystem |
ITMI20020566A1 (it) | 2002-03-18 | 2003-09-18 | Daniele Ramenzoni | Dispositivo per captare movimenti anche piccoli nell'aria e nei fluidi adatto per applicazioni cibernetiche e di laboratorio come trasduttor |
US7245733B2 (en) | 2002-03-20 | 2007-07-17 | Siemens Hearing Instruments, Inc. | Hearing instrument microphone arrangement with improved sensitivity |
US7518737B2 (en) | 2002-03-29 | 2009-04-14 | Georgia Tech Research Corp. | Displacement-measuring optical device with orifice |
ITBS20020043U1 (it) | 2002-04-12 | 2003-10-13 | Flos Spa | Giunto per il collegamento meccanico e elettrico di apparecchi di illuminazione in linea e/o ad angolo |
US6912178B2 (en) | 2002-04-15 | 2005-06-28 | Polycom, Inc. | System and method for computing a location of an acoustic source |
US20030198339A1 (en) | 2002-04-19 | 2003-10-23 | Roy Kenneth P. | Enhanced sound processing system for use with sound radiators |
US20030202107A1 (en) | 2002-04-30 | 2003-10-30 | Slattery E. Michael | Automated camera view control system |
US7852369B2 (en) | 2002-06-27 | 2010-12-14 | Microsoft Corp. | Integrated design for omni-directional camera and microphone array |
US6882971B2 (en) | 2002-07-18 | 2005-04-19 | General Instrument Corporation | Method and apparatus for improving listener differentiation of talkers during a conference call |
GB2393601B (en) | 2002-07-19 | 2005-09-21 | 1 Ltd | Digital loudspeaker system |
US8947347B2 (en) | 2003-08-27 | 2015-02-03 | Sony Computer Entertainment Inc. | Controlling actions in a video game unit |
US7050576B2 (en) | 2002-08-20 | 2006-05-23 | Texas Instruments Incorporated | Double talk, NLP and comfort noise |
US7805295B2 (en) | 2002-09-17 | 2010-09-28 | Koninklijke Philips Electronics N.V. | Method of synthesizing of an unvoiced speech signal |
EP1557071A4 (en) | 2002-10-01 | 2009-09-30 | Donnelly Corp | MICROPHONE SYSTEM FOR VEHICLE |
US7106876B2 (en) | 2002-10-15 | 2006-09-12 | Shure Incorporated | Microphone for simultaneous noise sensing and speech pickup |
US20080056517A1 (en) | 2002-10-18 | 2008-03-06 | The Regents Of The University Of California | Dynamic binaural sound capture and reproduction in focued or frontal applications |
US7003099B1 (en) | 2002-11-15 | 2006-02-21 | Fortmedia, Inc. | Small array microphone for acoustic echo cancellation and noise suppression |
US7672445B1 (en) | 2002-11-15 | 2010-03-02 | Fortemedia, Inc. | Method and system for nonlinear echo suppression |
GB2395878A (en) | 2002-11-29 | 2004-06-02 | Mitel Knowledge Corp | Method of capturing constant echo path information using default coefficients |
US6990193B2 (en) | 2002-11-29 | 2006-01-24 | Mitel Knowledge Corporation | Method of acoustic echo cancellation in full-duplex hands free audio conferencing with spatial directivity |
US7359504B1 (en) | 2002-12-03 | 2008-04-15 | Plantronics, Inc. | Method and apparatus for reducing echo and noise |
GB0229059D0 (en) | 2002-12-12 | 2003-01-15 | Mitel Knowledge Corp | Method of broadband constant directivity beamforming for non linear and non axi-symmetric sensor arrays embedded in an obstacle |
US7333476B2 (en) | 2002-12-23 | 2008-02-19 | Broadcom Corporation | System and method for operating a packet voice far-end echo cancellation system |
KR100480789B1 (ko) | 2003-01-17 | 2005-04-06 | 삼성전자주식회사 | 피드백 구조를 이용한 적응적 빔 형성방법 및 장치 |
GB2397990A (en) | 2003-01-31 | 2004-08-04 | Mitel Networks Corp | Echo cancellation/suppression and double-talk detection in communication paths |
USD489707S1 (en) | 2003-02-17 | 2004-05-11 | Pioneer Corporation | Speaker |
GB0304126D0 (en) | 2003-02-24 | 2003-03-26 | 1 Ltd | Sound beam loudspeaker system |
KR100493172B1 (ko) | 2003-03-06 | 2005-06-02 | 삼성전자주식회사 | 마이크로폰 어레이 구조, 이를 이용한 일정한 지향성을갖는 빔 형성방법 및 장치와 음원방향 추정방법 및 장치 |
US20040240664A1 (en) | 2003-03-07 | 2004-12-02 | Freed Evan Lawrence | Full-duplex speakerphone |
US7466835B2 (en) | 2003-03-18 | 2008-12-16 | Sonion A/S | Miniature microphone with balanced termination |
US9099094B2 (en) | 2003-03-27 | 2015-08-04 | Aliphcom | Microphone array with rear venting |
US6988064B2 (en) | 2003-03-31 | 2006-01-17 | Motorola, Inc. | System and method for combined frequency-domain and time-domain pitch extraction for speech signals |
US7643641B2 (en) | 2003-05-09 | 2010-01-05 | Nuance Communications, Inc. | System for communication enhancement in a noisy environment |
US8724822B2 (en) | 2003-05-09 | 2014-05-13 | Nuance Communications, Inc. | Noisy environment communication enhancement system |
DE60325699D1 (de) | 2003-05-13 | 2009-02-26 | Harman Becker Automotive Sys | Verfahren und System zur adaptiven Kompensation von Mikrofonungleichheiten |
JP2004349806A (ja) | 2003-05-20 | 2004-12-09 | Nippon Telegr & Teleph Corp <Ntt> | 多チャネル音響エコー消去方法、その装置、そのプログラム及びその記録媒体 |
US6993145B2 (en) | 2003-06-26 | 2006-01-31 | Multi-Service Corporation | Speaker grille frame |
US20050005494A1 (en) | 2003-07-11 | 2005-01-13 | Way Franklin B. | Combination display frame |
US6987591B2 (en) | 2003-07-17 | 2006-01-17 | Her Majesty The Queen In Right Of Canada, As Represented By The Minister Of Industry Through The Communications Research Centre Canada | Volume hologram |
GB0317158D0 (en) | 2003-07-23 | 2003-08-27 | Mitel Networks Corp | A method to reduce acoustic coupling in audio conferencing systems |
US8244536B2 (en) | 2003-08-27 | 2012-08-14 | General Motors Llc | Algorithm for intelligent speech recognition |
US7412376B2 (en) | 2003-09-10 | 2008-08-12 | Microsoft Corporation | System and method for real-time detection and preservation of speech onset in a signal |
CA2452945C (en) | 2003-09-23 | 2016-05-10 | Mcmaster University | Binaural adaptive hearing system |
US7162041B2 (en) | 2003-09-30 | 2007-01-09 | Etymotic Research, Inc. | Noise canceling microphone with acoustically tuned ports |
US20050213747A1 (en) | 2003-10-07 | 2005-09-29 | Vtel Products, Inc. | Hybrid monaural and multichannel audio for conferencing |
USD510729S1 (en) | 2003-10-23 | 2005-10-18 | Benq Corporation | TV tuner box |
US7190775B2 (en) | 2003-10-29 | 2007-03-13 | Broadcom Corporation | High quality audio conferencing with adaptive beamforming |
US8270585B2 (en) | 2003-11-04 | 2012-09-18 | Stmicroelectronics, Inc. | System and method for an endpoint participating in and managing multipoint audio conferencing in a packet network |
EP1695590B1 (en) | 2003-12-01 | 2014-02-26 | Wolfson Dynamic Hearing Pty Ltd. | Method and apparatus for producing adaptive directional signals |
KR20060130067A (ko) | 2003-12-10 | 2006-12-18 | 코닌클리케 필립스 일렉트로닉스 엔.브이. | 개별 갱신 제어 전략을 갖는 직렬 배치의 적응 필터들을구비한 에코 제거기 |
US7778425B2 (en) | 2003-12-24 | 2010-08-17 | Nokia Corporation | Method for generating noise references for generalized sidelobe canceling |
KR101086398B1 (ko) | 2003-12-24 | 2011-11-25 | 삼성전자주식회사 | 다수의 마이크로폰을 이용한 지향성 제어 가능 스피커시스템 및 그 방법 |
WO2005076663A1 (en) | 2004-01-07 | 2005-08-18 | Koninklijke Philips Electronics N.V. | Audio system having reverberation reducing filter |
JP4251077B2 (ja) | 2004-01-07 | 2009-04-08 | ヤマハ株式会社 | スピーカ装置 |
US7387151B1 (en) | 2004-01-23 | 2008-06-17 | Payne Donald L | Cabinet door with changeable decorative panel |
DK176894B1 (da) | 2004-01-29 | 2010-03-08 | Dpa Microphones As | Mikrofonstruktur med retningsvirkning |
TWI289020B (en) | 2004-02-06 | 2007-10-21 | Fortemedia Inc | Apparatus and method of a dual microphone communication device applied for teleconference system |
US7515721B2 (en) | 2004-02-09 | 2009-04-07 | Microsoft Corporation | Self-descriptive microphone array |
WO2005082669A1 (de) | 2004-02-27 | 2005-09-09 | Daimlerchrysler Ag | Kraftfahrzeug mit mikrofon |
CA3026276C (en) | 2004-03-01 | 2019-04-16 | Dolby Laboratories Licensing Corporation | Reconstructing audio signals with multiple decorrelation techniques |
US7415117B2 (en) | 2004-03-02 | 2008-08-19 | Microsoft Corporation | System and method for beamforming using a microphone array |
US7826205B2 (en) | 2004-03-08 | 2010-11-02 | Originatic Llc | Electronic device having a movable input assembly with multiple input sides |
USD504889S1 (en) | 2004-03-17 | 2005-05-10 | Apple Computer, Inc. | Electronic device |
US7346315B2 (en) | 2004-03-30 | 2008-03-18 | Motorola Inc | Handheld device loudspeaker system |
JP2005311988A (ja) | 2004-04-26 | 2005-11-04 | Onkyo Corp | スピーカーシステム |
WO2005125267A2 (en) | 2004-05-05 | 2005-12-29 | Southwest Research Institute | Airborne collection of acoustic data using an unmanned aerial vehicle |
JP2005323084A (ja) | 2004-05-07 | 2005-11-17 | Nippon Telegr & Teleph Corp <Ntt> | 音響エコー消去方法、音響エコー消去装置、音響エコー消去プログラム |
US8031853B2 (en) | 2004-06-02 | 2011-10-04 | Clearone Communications, Inc. | Multi-pod conference systems |
US7856097B2 (en) | 2004-06-17 | 2010-12-21 | Panasonic Corporation | Echo canceling apparatus, telephone set using the same, and echo canceling method |
US7352858B2 (en) | 2004-06-30 | 2008-04-01 | Microsoft Corporation | Multi-channel echo cancellation with round robin regularization |
TWI241790B (en) | 2004-07-16 | 2005-10-11 | Ind Tech Res Inst | Hybrid beamforming apparatus and method for the same |
EP1633121B1 (en) | 2004-09-03 | 2008-11-05 | Harman Becker Automotive Systems GmbH | Speech signal processing with combined adaptive noise reduction and adaptive echo compensation |
KR20070050058A (ko) | 2004-09-07 | 2007-05-14 | 코닌클리케 필립스 일렉트로닉스 엔.브이. | 향상된 잡음 억제를 구비한 전화통신 디바이스 |
JP2006094389A (ja) | 2004-09-27 | 2006-04-06 | Yamaha Corp | 車内会話補助装置 |
EP1643798B1 (en) | 2004-10-01 | 2012-12-05 | AKG Acoustics GmbH | Microphone comprising two pressure-gradient capsules |
US7720232B2 (en) | 2004-10-15 | 2010-05-18 | Lifesize Communications, Inc. | Speakerphone |
US7667728B2 (en) | 2004-10-15 | 2010-02-23 | Lifesize Communications, Inc. | Video and audio conferencing system with spatial audio |
US8116500B2 (en) | 2004-10-15 | 2012-02-14 | Lifesize Communications, Inc. | Microphone orientation and size in a speakerphone |
US7760887B2 (en) | 2004-10-15 | 2010-07-20 | Lifesize Communications, Inc. | Updating modeling information based on online data gathering |
US7970151B2 (en) | 2004-10-15 | 2011-06-28 | Lifesize Communications, Inc. | Hybrid beamforming |
USD526643S1 (en) | 2004-10-19 | 2006-08-15 | Pioneer Corporation | Speaker |
CN1780495A (zh) | 2004-10-25 | 2006-05-31 | 宝利通公司 | 顶蓬麦克风组件 |
US7660428B2 (en) | 2004-10-25 | 2010-02-09 | Polycom, Inc. | Ceiling microphone assembly |
JP4697465B2 (ja) | 2004-11-08 | 2011-06-08 | 日本電気株式会社 | 信号処理の方法、信号処理の装置および信号処理用プログラム |
US20060109983A1 (en) | 2004-11-19 | 2006-05-25 | Young Randall K | Signal masking and method thereof |
US20060147063A1 (en) | 2004-12-22 | 2006-07-06 | Broadcom Corporation | Echo cancellation in telephones with multiple microphones |
USD526648S1 (en) | 2004-12-23 | 2006-08-15 | Apple Computer, Inc. | Computing device |
NO328256B1 (no) | 2004-12-29 | 2010-01-18 | Tandberg Telecom As | Audiosystem |
US7830862B2 (en) | 2005-01-07 | 2010-11-09 | At&T Intellectual Property Ii, L.P. | System and method for modifying speech playout to compensate for transmission delay jitter in a voice over internet protocol (VoIP) network |
KR20060081076A (ko) | 2005-01-07 | 2006-07-12 | 이재호 | 음성인식으로 층수를 지정하는 엘리베이터 |
USD527372S1 (en) | 2005-01-12 | 2006-08-29 | Kh Technology Corporation | Loudspeaker |
EP1681670A1 (en) | 2005-01-14 | 2006-07-19 | Dialog Semiconductor GmbH | Voice activation |
US7995768B2 (en) | 2005-01-27 | 2011-08-09 | Yamaha Corporation | Sound reinforcement system |
JP4120646B2 (ja) | 2005-01-27 | 2008-07-16 | ヤマハ株式会社 | 拡声システム |
JP4196956B2 (ja) | 2005-02-28 | 2008-12-17 | ヤマハ株式会社 | 拡声システム |
JP4258472B2 (ja) | 2005-01-27 | 2009-04-30 | ヤマハ株式会社 | 拡声システム |
CA2600015A1 (en) | 2005-03-01 | 2006-09-08 | Todd Henry | Electromagnetic lever diaphragm audio transducer |
US8406435B2 (en) | 2005-03-18 | 2013-03-26 | Microsoft Corporation | Audio submix management |
US7522742B2 (en) | 2005-03-21 | 2009-04-21 | Speakercraft, Inc. | Speaker assembly with moveable baffle |
US20060222187A1 (en) | 2005-04-01 | 2006-10-05 | Scott Jarrett | Microphone and sound image processing system |
DE602005003643T2 (de) | 2005-04-01 | 2008-11-13 | Mitel Networks Corporation, Ottawa | Verfahren zur Beschleunigung des Trainings eines akustischen Echokompensators in einem Vollduplexaudiokonferenzsystem durch akustische Strahlbildung |
USD542543S1 (en) | 2005-04-06 | 2007-05-15 | Foremost Group Inc. | Mirror |
CA2505496A1 (en) | 2005-04-27 | 2006-10-27 | Universite De Sherbrooke | Robust localization and tracking of simultaneously moving sound sources using beamforming and particle filtering |
US7991167B2 (en) | 2005-04-29 | 2011-08-02 | Lifesize Communications, Inc. | Forming beams with nulls directed at noise sources |
EP1878013B1 (en) | 2005-05-05 | 2010-12-15 | Sony Computer Entertainment Inc. | Video game control with joystick |
DE602005008914D1 (de) | 2005-05-09 | 2008-09-25 | Mitel Networks Corp | Verfahren und System zum Reduzieren der Trainingszeit eines akustischen Echokompensators in einem Vollduplexaudiokonferenzsystem durch akustische Strahlbildung |
GB2426168B (en) | 2005-05-09 | 2008-08-27 | Sony Comp Entertainment Europe | Audio processing |
JP4654777B2 (ja) | 2005-06-03 | 2011-03-23 | パナソニック株式会社 | 音響エコーキャンセル装置 |
JP4735956B2 (ja) | 2005-06-22 | 2011-07-27 | アイシン・エィ・ダブリュ株式会社 | 複数ボルト挿入工具 |
DE602005003342T2 (de) | 2005-06-23 | 2008-09-11 | Akg Acoustics Gmbh | Methode zur Modellierung eines Mikrofons |
US8139782B2 (en) | 2005-06-23 | 2012-03-20 | Paul Hughes | Modular amplification system |
ATE545286T1 (de) | 2005-06-23 | 2012-02-15 | Akg Acoustics Gmbh | Schallfeldmikrophon |
JP4760160B2 (ja) | 2005-06-29 | 2011-08-31 | ヤマハ株式会社 | 集音装置 |
USD549673S1 (en) | 2005-06-29 | 2007-08-28 | Sony Corporation | Television receiver |
JP2007019907A (ja) | 2005-07-08 | 2007-01-25 | Yamaha Corp | 音声伝達システム、および通信会議装置 |
CA2616305C (en) | 2005-07-27 | 2013-12-31 | Kabushiki Kaisha Audio-Technica | Conference audio system |
CN101238511B (zh) | 2005-08-11 | 2011-09-07 | 旭化成株式会社 | 声源分离装置、音频识别装置、移动电话机、声源分离方法 |
US7702116B2 (en) | 2005-08-22 | 2010-04-20 | Stone Christopher L | Microphone bleed simulator |
JP4752403B2 (ja) | 2005-09-06 | 2011-08-17 | ヤマハ株式会社 | 拡声システム |
JP4724505B2 (ja) | 2005-09-09 | 2011-07-13 | 株式会社日立製作所 | 超音波探触子およびその製造方法 |
WO2007034392A2 (en) | 2005-09-21 | 2007-03-29 | Koninklijke Philips Electronics N.V. | Ultrasound imaging system with voice activated controls using remotely positioned microphone |
JP2007089058A (ja) | 2005-09-26 | 2007-04-05 | Yamaha Corp | マイクアレイ制御装置 |
US7565949B2 (en) | 2005-09-27 | 2009-07-28 | Casio Computer Co., Ltd. | Flat panel display module having speaker function |
WO2007037700A1 (en) | 2005-09-30 | 2007-04-05 | Squarehead Technology As | Directional audio capturing |
USD549675S1 (en) | 2005-10-07 | 2007-08-28 | Koninklijke Philips Electronics N.V. | Center unit for home theatre system |
US8000481B2 (en) | 2005-10-12 | 2011-08-16 | Yamaha Corporation | Speaker array and microphone array |
US20070174047A1 (en) | 2005-10-18 | 2007-07-26 | Anderson Kyle D | Method and apparatus for resynchronizing packetized audio streams |
US7970123B2 (en) | 2005-10-20 | 2011-06-28 | Mitel Networks Corporation | Adaptive coupling equalization in beamforming-based communication systems |
USD546814S1 (en) | 2005-10-24 | 2007-07-17 | Teac Corporation | Guitar amplifier with digital audio disc player |
US20090237561A1 (en) | 2005-10-26 | 2009-09-24 | Kazuhiko Kobayashi | Video and audio output device |
US8243950B2 (en) | 2005-11-02 | 2012-08-14 | Yamaha Corporation | Teleconferencing apparatus with virtual point source production |
JP4867579B2 (ja) | 2005-11-02 | 2012-02-01 | ヤマハ株式会社 | 遠隔会議装置 |
EP1971183A1 (en) | 2005-11-15 | 2008-09-17 | Yamaha Corporation | Teleconference device and sound emission/collection device |
US20070120029A1 (en) | 2005-11-29 | 2007-05-31 | Rgb Systems, Inc. | A Modular Wall Mounting Apparatus |
USD552570S1 (en) | 2005-11-30 | 2007-10-09 | Sony Corporation | Monitor television receiver |
USD547748S1 (en) | 2005-12-08 | 2007-07-31 | Sony Corporation | Speaker box |
US8243951B2 (en) | 2005-12-19 | 2012-08-14 | Yamaha Corporation | Sound emission and collection device |
US8130977B2 (en) | 2005-12-27 | 2012-03-06 | Polycom, Inc. | Cluster of first-order microphones and method of operation for stereo input of videoconferencing system |
US8644477B2 (en) | 2006-01-31 | 2014-02-04 | Shure Acquisition Holdings, Inc. | Digital Microphone Automixer |
JP4929740B2 (ja) | 2006-01-31 | 2012-05-09 | ヤマハ株式会社 | 音声会議装置 |
USD581510S1 (en) | 2006-02-10 | 2008-11-25 | American Power Conversion Corporation | Wiring closet ventilation unit |
JP4946090B2 (ja) | 2006-02-21 | 2012-06-06 | ヤマハ株式会社 | 収音放音一体型装置 |
JP2007228070A (ja) | 2006-02-21 | 2007-09-06 | Yamaha Corp | テレビ会議装置 |
US8730156B2 (en) | 2010-03-05 | 2014-05-20 | Sony Computer Entertainment America Llc | Maintaining multiple views on a shared stable virtual space |
EP1994788B1 (en) | 2006-03-10 | 2014-05-07 | MH Acoustics, LLC | Noise-reducing directional microphone array |
JP4779748B2 (ja) | 2006-03-27 | 2011-09-28 | 株式会社デンソー | 車両用音声入出力装置および音声入出力装置用プログラム |
JP2007274131A (ja) | 2006-03-30 | 2007-10-18 | Yamaha Corp | 拡声システム及び集音装置 |
JP2007274463A (ja) | 2006-03-31 | 2007-10-18 | Yamaha Corp | 遠隔会議装置 |
US8670581B2 (en) | 2006-04-14 | 2014-03-11 | Murray R. Harman | Electrostatic loudspeaker capable of dispersing sound both horizontally and vertically |
DE602006005228D1 (de) | 2006-04-18 | 2009-04-02 | Harman Becker Automotive Sys | System und Verfahren zur Mehrkanal-Echokompensation |
JP2007288679A (ja) | 2006-04-19 | 2007-11-01 | Yamaha Corp | 放収音装置 |
JP4816221B2 (ja) | 2006-04-21 | 2011-11-16 | ヤマハ株式会社 | 収音装置および音声会議装置 |
US20070253561A1 (en) | 2006-04-27 | 2007-11-01 | Tsp Systems, Inc. | Systems and methods for audio enhancement |
US7831035B2 (en) | 2006-04-28 | 2010-11-09 | Microsoft Corporation | Integration of a microphone array with acoustic echo cancellation and center clipping |
WO2007129731A1 (ja) | 2006-05-10 | 2007-11-15 | Honda Motor Co., Ltd. | 音源追跡システム、方法、およびロボット |
EP1855457B1 (en) | 2006-05-10 | 2009-07-08 | Harman Becker Automotive Systems GmbH | Multi channel echo compensation using a decorrelation stage |
US20070269066A1 (en) | 2006-05-19 | 2007-11-22 | Phonak Ag | Method for manufacturing an audio signal |
EP2025200A2 (en) | 2006-05-19 | 2009-02-18 | Phonak AG | Method for manufacturing an audio signal |
JP4747949B2 (ja) | 2006-05-25 | 2011-08-17 | ヤマハ株式会社 | 音声会議装置 |
US8275120B2 (en) | 2006-05-30 | 2012-09-25 | Microsoft Corp. | Adaptive acoustic echo cancellation |
JP2008005293A (ja) | 2006-06-23 | 2008-01-10 | Matsushita Electric Ind Co Ltd | エコー抑圧装置 |
USD559553S1 (en) | 2006-06-23 | 2008-01-15 | Electric Mirror, L.L.C. | Backlit mirror with TV |
JP2008005347A (ja) | 2006-06-23 | 2008-01-10 | Yamaha Corp | 音声通信装置、および複合プラグ |
JP4984683B2 (ja) | 2006-06-29 | 2012-07-25 | ヤマハ株式会社 | 放収音装置 |
US8184801B1 (en) | 2006-06-29 | 2012-05-22 | Nokia Corporation | Acoustic echo cancellation for time-varying microphone array beamsteering systems |
US20080008339A1 (en) | 2006-07-05 | 2008-01-10 | Ryan James G | Audio processing system and method |
US8189765B2 (en) | 2006-07-06 | 2012-05-29 | Panasonic Corporation | Multichannel echo canceller |
KR100883652B1 (ko) | 2006-08-03 | 2009-02-18 | 삼성전자주식회사 | 음성 구간 검출 방법 및 장치, 및 이를 이용한 음성 인식시스템 |
US8213634B1 (en) | 2006-08-07 | 2012-07-03 | Daniel Technology, Inc. | Modular and scalable directional audio array with novel filtering |
JP4887968B2 (ja) | 2006-08-09 | 2012-02-29 | ヤマハ株式会社 | 音声会議装置 |
US8280728B2 (en) | 2006-08-11 | 2012-10-02 | Broadcom Corporation | Packet loss concealment for a sub-band predictive coder based on extrapolation of excitation waveform |
US8346546B2 (en) | 2006-08-15 | 2013-01-01 | Broadcom Corporation | Packet loss concealment based on forced waveform alignment after packet loss |
US8898633B2 (en) | 2006-08-24 | 2014-11-25 | Siemens Industry, Inc. | Devices, systems, and methods for configuring a programmable logic controller |
USD566685S1 (en) | 2006-10-04 | 2008-04-15 | Lightspeed Technologies, Inc. | Combined wireless receiver, amplifier and speaker |
GB0619825D0 (en) | 2006-10-06 | 2006-11-15 | Craven Peter G | Microphone array |
WO2008115284A2 (en) | 2006-10-16 | 2008-09-25 | Thx Ltd. | Loudspeaker line array configurations and related sound processing |
JP5028944B2 (ja) | 2006-10-17 | 2012-09-19 | ヤマハ株式会社 | 音声会議装置及び音声会議システム |
US8103030B2 (en) | 2006-10-23 | 2012-01-24 | Siemens Audiologische Technik Gmbh | Differential directional microphone system and hearing aid device with such a differential directional microphone system |
JP4928922B2 (ja) | 2006-12-01 | 2012-05-09 | 株式会社東芝 | 情報処理装置、およびプログラム |
EP1936939B1 (en) | 2006-12-18 | 2011-08-24 | Harman Becker Automotive Systems GmbH | Low complexity echo compensation |
CN101207468B (zh) | 2006-12-19 | 2010-07-21 | 华为技术有限公司 | 丢帧隐藏方法、***和装置 |
JP2008154056A (ja) | 2006-12-19 | 2008-07-03 | Yamaha Corp | 音声会議装置および音声会議システム |
US8335685B2 (en) * | 2006-12-22 | 2012-12-18 | Qnx Software Systems Limited | Ambient noise compensation system robust to high excitation noise |
CN101212828A (zh) | 2006-12-27 | 2008-07-02 | 鸿富锦精密工业(深圳)有限公司 | 电子设备及其采用的声音模组 |
US7941677B2 (en) | 2007-01-05 | 2011-05-10 | Avaya Inc. | Apparatus and methods for managing power distribution over Ethernet |
KR101365988B1 (ko) | 2007-01-05 | 2014-02-21 | 삼성전자주식회사 | 지향성 스피커 시스템의 자동 셋-업 방법 및 장치 |
DE08713901T1 (de) | 2007-01-22 | 2010-02-25 | Bell Helicopter Textron, Inc., Fort Worth | System und verfahren zur interaktiven anzeige von daten in einer bewegungserfassungsumgebung |
KR101297300B1 (ko) | 2007-01-31 | 2013-08-16 | 삼성전자주식회사 | 스피커 어레이를 이용한 프론트 서라운드 재생 시스템 및그 신호 재생 방법 |
US20080188965A1 (en) | 2007-02-06 | 2008-08-07 | Rane Corporation | Remote audio device network system and method |
GB2446619A (en) | 2007-02-16 | 2008-08-20 | Audiogravity Holdings Ltd | Reduction of wind noise in an omnidirectional microphone array |
JP5139111B2 (ja) | 2007-03-02 | 2013-02-06 | 本田技研工業株式会社 | 移動音源からの音の抽出方法および装置 |
EP1970894A1 (fr) | 2007-03-12 | 2008-09-17 | France Télécom | Procédé et dispositif de modification d'un signal audio |
USD578509S1 (en) | 2007-03-12 | 2008-10-14 | The Professional Monitor Company Limited | Audio speaker |
US7651390B1 (en) | 2007-03-12 | 2010-01-26 | Profeta Jeffery L | Ceiling vent air diverter |
US8654955B1 (en) | 2007-03-14 | 2014-02-18 | Clearone Communications, Inc. | Portable conferencing device with videoconferencing option |
US8005238B2 (en) | 2007-03-22 | 2011-08-23 | Microsoft Corporation | Robust adaptive beamforming with enhanced noise suppression |
US8098842B2 (en) | 2007-03-29 | 2012-01-17 | Microsoft Corp. | Enhanced beamforming for arrays of directional microphones |
USD587709S1 (en) | 2007-04-06 | 2009-03-03 | Sony Corporation | Monitor display |
JP5050616B2 (ja) | 2007-04-06 | 2012-10-17 | ヤマハ株式会社 | 放収音装置 |
US8155304B2 (en) | 2007-04-10 | 2012-04-10 | Microsoft Corporation | Filter bank optimization for acoustic echo cancellation |
JP2008263336A (ja) | 2007-04-11 | 2008-10-30 | Oki Electric Ind Co Ltd | エコーキャンセラおよびその残留エコー抑制方法 |
EP2381580A1 (en) | 2007-04-13 | 2011-10-26 | Global IP Solutions (GIPS) AB | Adaptive, scalable packet loss recovery |
US20080259731A1 (en) | 2007-04-17 | 2008-10-23 | Happonen Aki P | Methods and apparatuses for user controlled beamforming |
ATE473603T1 (de) | 2007-04-17 | 2010-07-15 | Harman Becker Automotive Sys | Akustische lokalisierung eines sprechers |
ITTV20070070A1 (it) | 2007-04-20 | 2008-10-21 | Swing S R L | Dispositivo trasduttore del suono. |
US20080279400A1 (en) | 2007-05-10 | 2008-11-13 | Reuven Knoll | System and method for capturing voice interactions in walk-in environments |
JP2008288785A (ja) | 2007-05-16 | 2008-11-27 | Yamaha Corp | テレビ会議装置 |
ATE524015T1 (de) | 2007-05-22 | 2011-09-15 | Harman Becker Automotive Sys | Verfahren und vorrichtung zur verarbeitung mindestens zweier mikrofonsignale zur sendung eines ausgangssignals mit reduzierter interferenz |
US8229134B2 (en) | 2007-05-24 | 2012-07-24 | University Of Maryland | Audio camera using microphone arrays for real time capture of audio images and method for jointly processing the audio images with video images |
JP5338040B2 (ja) | 2007-06-04 | 2013-11-13 | ヤマハ株式会社 | 音声会議装置 |
CN101325631B (zh) | 2007-06-14 | 2010-10-20 | 华为技术有限公司 | 一种估计基音周期的方法和装置 |
CN101833954B (zh) | 2007-06-14 | 2012-07-11 | 华为终端有限公司 | 一种实现丢包隐藏的方法和装置 |
JP2008312002A (ja) | 2007-06-15 | 2008-12-25 | Yamaha Corp | テレビ会議装置 |
CN101325537B (zh) | 2007-06-15 | 2012-04-04 | 华为技术有限公司 | 一种丢帧隐藏的方法和设备 |
WO2008155708A1 (en) | 2007-06-21 | 2008-12-24 | Koninklijke Philips Electronics N.V. | A device for and a method of processing audio signals |
US20090003586A1 (en) | 2007-06-28 | 2009-01-01 | Fortemedia, Inc. | Signal processor and method for canceling echo in a communication device |
US8903106B2 (en) | 2007-07-09 | 2014-12-02 | Mh Acoustics Llc | Augmented elliptical microphone array |
US8285554B2 (en) | 2007-07-27 | 2012-10-09 | Dsp Group Limited | Method and system for dynamic aliasing suppression |
USD589605S1 (en) | 2007-08-01 | 2009-03-31 | Trane International Inc. | Air inlet grille |
JP2009044600A (ja) | 2007-08-10 | 2009-02-26 | Panasonic Corp | マイクロホン装置およびその製造方法 |
CN101119323A (zh) | 2007-09-21 | 2008-02-06 | 腾讯科技(深圳)有限公司 | 解决网络抖动的方法及装置 |
US8064629B2 (en) | 2007-09-27 | 2011-11-22 | Peigen Jiang | Decorative loudspeaker grille |
US8175871B2 (en) | 2007-09-28 | 2012-05-08 | Qualcomm Incorporated | Apparatus and method of noise and echo reduction in multiple microphone audio systems |
US8095120B1 (en) | 2007-09-28 | 2012-01-10 | Avaya Inc. | System and method of synchronizing multiple microphone and speaker-equipped devices to create a conferenced area network |
KR101434200B1 (ko) | 2007-10-01 | 2014-08-26 | 삼성전자주식회사 | 혼합 사운드로부터의 음원 판별 방법 및 장치 |
KR101292206B1 (ko) | 2007-10-01 | 2013-08-01 | 삼성전자주식회사 | 어레이 스피커 시스템 및 그 구현 방법 |
JP5012387B2 (ja) | 2007-10-05 | 2012-08-29 | ヤマハ株式会社 | 音声処理システム |
US7832080B2 (en) | 2007-10-11 | 2010-11-16 | Etymotic Research, Inc. | Directional microphone assembly |
US8428661B2 (en) | 2007-10-30 | 2013-04-23 | Broadcom Corporation | Speech intelligibility in telephones with multiple microphones |
US8199927B1 (en) | 2007-10-31 | 2012-06-12 | ClearOnce Communications, Inc. | Conferencing system implementing echo cancellation and push-to-talk microphone detection using two-stage frequency filter |
US8290142B1 (en) | 2007-11-12 | 2012-10-16 | Clearone Communications, Inc. | Echo cancellation in a portable conferencing device with externally-produced audio |
EP2208361B1 (en) | 2007-11-13 | 2011-02-16 | AKG Acoustics GmbH | Microphone arrangement, having two pressure gradient transducers |
KR101415026B1 (ko) | 2007-11-19 | 2014-07-04 | 삼성전자주식회사 | 마이크로폰 어레이를 이용한 다채널 사운드 획득 방법 및장치 |
EP2063419B1 (en) | 2007-11-21 | 2012-04-18 | Nuance Communications, Inc. | Speaker localization |
KR101449433B1 (ko) | 2007-11-30 | 2014-10-13 | 삼성전자주식회사 | 마이크로폰을 통해 입력된 사운드 신호로부터 잡음을제거하는 방법 및 장치 |
JP5097523B2 (ja) | 2007-12-07 | 2012-12-12 | 船井電機株式会社 | 音声入力装置 |
US8744069B2 (en) | 2007-12-10 | 2014-06-03 | Microsoft Corporation | Removing near-end frequencies from far-end sound |
US8433061B2 (en) | 2007-12-10 | 2013-04-30 | Microsoft Corporation | Reducing echo |
US8219387B2 (en) | 2007-12-10 | 2012-07-10 | Microsoft Corporation | Identifying far-end sound |
US8175291B2 (en) | 2007-12-19 | 2012-05-08 | Qualcomm Incorporated | Systems, methods, and apparatus for multi-microphone based speech enhancement |
US20090173570A1 (en) | 2007-12-20 | 2009-07-09 | Levit Natalia V | Acoustically absorbent ceiling tile having barrier facing with diffuse reflectance |
USD604729S1 (en) | 2008-01-04 | 2009-11-24 | Apple Inc. | Electronic device |
US7765762B2 (en) | 2008-01-08 | 2010-08-03 | Usg Interiors, Inc. | Ceiling panel |
USD582391S1 (en) | 2008-01-17 | 2008-12-09 | Roland Corporation | Speaker |
USD595402S1 (en) | 2008-02-04 | 2009-06-30 | Panasonic Corporation | Ventilating fan for a ceiling |
WO2009105793A1 (en) | 2008-02-26 | 2009-09-03 | Akg Acoustics Gmbh | Transducer assembly |
JP5003531B2 (ja) | 2008-02-27 | 2012-08-15 | ヤマハ株式会社 | 音声会議システム |
KR20100131467A (ko) | 2008-03-03 | 2010-12-15 | 노키아 코포레이션 | 복수의 오디오 채널들을 캡쳐하고 렌더링하는 장치 |
US8503653B2 (en) | 2008-03-03 | 2013-08-06 | Alcatel Lucent | Method and apparatus for active speaker selection using microphone arrays and speaker recognition |
WO2009109069A1 (en) | 2008-03-07 | 2009-09-11 | Arcsoft (Shanghai) Technology Company, Ltd. | Implementing a high quality voip device |
US8626080B2 (en) | 2008-03-11 | 2014-01-07 | Intel Corporation | Bidirectional iterative beam forming |
US9142221B2 (en) | 2008-04-07 | 2015-09-22 | Cambridge Silicon Radio Limited | Noise reduction |
US8559611B2 (en) | 2008-04-07 | 2013-10-15 | Polycom, Inc. | Audio signal routing |
JP5603325B2 (ja) | 2008-04-07 | 2014-10-08 | ドルビー ラボラトリーズ ライセンシング コーポレイション | マイクロホン配列からのサラウンド・サウンド生成 |
US8379823B2 (en) | 2008-04-07 | 2013-02-19 | Polycom, Inc. | Distributed bridging |
US8284949B2 (en) | 2008-04-17 | 2012-10-09 | University Of Utah Research Foundation | Multi-channel acoustic echo cancellation system and method |
US8385557B2 (en) | 2008-06-19 | 2013-02-26 | Microsoft Corporation | Multichannel acoustic echo reduction |
US8286749B2 (en) | 2008-06-27 | 2012-10-16 | Rgb Systems, Inc. | Ceiling loudspeaker system |
US8109360B2 (en) | 2008-06-27 | 2012-02-07 | Rgb Systems, Inc. | Method and apparatus for a loudspeaker assembly |
US8631897B2 (en) | 2008-06-27 | 2014-01-21 | Rgb Systems, Inc. | Ceiling loudspeaker system |
US8276706B2 (en) | 2008-06-27 | 2012-10-02 | Rgb Systems, Inc. | Method and apparatus for a loudspeaker assembly |
US7861825B2 (en) | 2008-06-27 | 2011-01-04 | Rgb Systems, Inc. | Method and apparatus for a loudspeaker assembly |
US8672087B2 (en) | 2008-06-27 | 2014-03-18 | Rgb Systems, Inc. | Ceiling loudspeaker support system |
JP4991649B2 (ja) | 2008-07-02 | 2012-08-01 | パナソニック株式会社 | 音声信号処理装置 |
KR100901464B1 (ko) | 2008-07-03 | 2009-06-08 | (주)기가바이트씨앤씨 | 집음기 및 집음기 세트 |
EP2146519B1 (en) | 2008-07-16 | 2012-06-06 | Nuance Communications, Inc. | Beamforming pre-processing for speaker localization |
US20100011644A1 (en) | 2008-07-17 | 2010-01-21 | Kramer Eric J | Memorabilia display system |
JP5075042B2 (ja) | 2008-07-23 | 2012-11-14 | 日本電信電話株式会社 | エコー消去装置、エコー消去方法、そのプログラム、記録媒体 |
USD613338S1 (en) | 2008-07-31 | 2010-04-06 | Chris Marukos | Interchangeable advertising sign |
USD595736S1 (en) | 2008-08-15 | 2009-07-07 | Samsung Electronics Co., Ltd. | DVD player |
EP2670165B1 (en) | 2008-08-29 | 2016-10-05 | Biamp Systems Corporation | A microphone array system and method for sound acquistion |
US8605890B2 (en) | 2008-09-22 | 2013-12-10 | Microsoft Corporation | Multichannel acoustic echo cancellation |
EP2350683B1 (en) | 2008-10-06 | 2017-01-04 | Raytheon BBN Technologies Corp. | Wearable shooter localization system |
WO2010043998A1 (en) | 2008-10-16 | 2010-04-22 | Nxp B.V. | Microphone system and method of operating the same |
US8724829B2 (en) | 2008-10-24 | 2014-05-13 | Qualcomm Incorporated | Systems, methods, apparatus, and computer-readable media for coherence detection |
US8041054B2 (en) | 2008-10-31 | 2011-10-18 | Continental Automotive Systems, Inc. | Systems and methods for selectively switching between multiple microphones |
JP5386936B2 (ja) | 2008-11-05 | 2014-01-15 | ヤマハ株式会社 | 放収音装置 |
US20100123785A1 (en) | 2008-11-17 | 2010-05-20 | Apple Inc. | Graphic Control for Directional Audio Input |
US8150063B2 (en) | 2008-11-25 | 2012-04-03 | Apple Inc. | Stabilizing directional audio input from a moving microphone array |
KR20100060457A (ko) | 2008-11-27 | 2010-06-07 | 삼성전자주식회사 | 이동통신 단말기의 동작모드 제어장치 및 방법 |
US8744101B1 (en) | 2008-12-05 | 2014-06-03 | Starkey Laboratories, Inc. | System for controlling the primary lobe of a hearing instrument's directional sensitivity pattern |
US8842851B2 (en) | 2008-12-12 | 2014-09-23 | Broadcom Corporation | Audio source localization system and method |
EP2197219B1 (en) | 2008-12-12 | 2012-10-24 | Nuance Communications, Inc. | Method for determining a time delay for time delay compensation |
NO332961B1 (no) | 2008-12-23 | 2013-02-11 | Cisco Systems Int Sarl | Forhoyet toroidmikrofonapparat |
US8259959B2 (en) | 2008-12-23 | 2012-09-04 | Cisco Technology, Inc. | Toroid microphone apparatus |
JP5446275B2 (ja) | 2009-01-08 | 2014-03-19 | ヤマハ株式会社 | 拡声システム |
NO333056B1 (no) | 2009-01-21 | 2013-02-25 | Cisco Systems Int Sarl | Direktiv mikrofon |
EP2211564B1 (en) | 2009-01-23 | 2014-09-10 | Harman Becker Automotive Systems GmbH | Passenger compartment communication system |
US8116499B2 (en) | 2009-01-23 | 2012-02-14 | John Grant | Microphone adaptor for altering the geometry of a microphone without altering its frequency response characteristics |
DE102009007891A1 (de) | 2009-02-07 | 2010-08-12 | Willsingh Wilson | Resonanz-Schallabsorber in mehrschichtiger Ausführung |
EP2393463B1 (en) | 2009-02-09 | 2016-09-21 | Waves Audio Ltd. | Multiple microphone based directional sound filter |
JP5304293B2 (ja) | 2009-02-10 | 2013-10-02 | ヤマハ株式会社 | 収音装置 |
DE102009010278B4 (de) | 2009-02-16 | 2018-12-20 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Lautsprecher |
EP2222091B1 (en) | 2009-02-23 | 2013-04-24 | Nuance Communications, Inc. | Method for determining a set of filter coefficients for an acoustic echo compensation means |
US20100217590A1 (en) | 2009-02-24 | 2010-08-26 | Broadcom Corporation | Speaker localization system and method |
CN101510426B (zh) | 2009-03-23 | 2013-03-27 | 北京中星微电子有限公司 | 一种噪声消除方法及*** |
US8184180B2 (en) | 2009-03-25 | 2012-05-22 | Broadcom Corporation | Spatially synchronized audio and video capture |
CN101854573B (zh) | 2009-03-30 | 2014-12-24 | 富准精密工业(深圳)有限公司 | 音响结构及使用该音响结构的电子装置 |
GB0906269D0 (en) | 2009-04-09 | 2009-05-20 | Ntnu Technology Transfer As | Optimal modal beamformer for sensor arrays |
US8291670B2 (en) | 2009-04-29 | 2012-10-23 | E.M.E.H., Inc. | Modular entrance floor system |
US8483398B2 (en) | 2009-04-30 | 2013-07-09 | Hewlett-Packard Development Company, L.P. | Methods and systems for reducing acoustic echoes in multichannel communication systems by reducing the dimensionality of the space of impulse responses |
US8485700B2 (en) | 2009-05-05 | 2013-07-16 | Abl Ip Holding, Llc | Low profile OLED luminaire for grid ceilings |
BRPI0924076B1 (pt) | 2009-05-12 | 2021-09-21 | Huawei Device (Shenzhen) Co., Ltd. | Sistema de telepresença e método de telepresença |
JP5169986B2 (ja) | 2009-05-13 | 2013-03-27 | 沖電気工業株式会社 | 電話装置、エコーキャンセラ及びエコーキャンセルプログラム |
JP5246044B2 (ja) | 2009-05-29 | 2013-07-24 | ヤマハ株式会社 | 音響装置 |
US9008327B2 (en) | 2009-06-02 | 2015-04-14 | Koninklijke Philips N.V. | Acoustic multi-channel cancellation |
US9140054B2 (en) | 2009-06-05 | 2015-09-22 | Oberbroeckling Development Company | Insert holding system |
US20100314513A1 (en) | 2009-06-12 | 2010-12-16 | Rgb Systems, Inc. | Method and apparatus for overhead equipment mounting |
US8204198B2 (en) | 2009-06-19 | 2012-06-19 | Magor Communications Corporation | Method and apparatus for selecting an audio stream |
JP2011015018A (ja) | 2009-06-30 | 2011-01-20 | Clarion Co Ltd | 自動音量制御装置 |
WO2011007418A1 (ja) | 2009-07-14 | 2011-01-20 | 株式会社ビジョナリスト | 画像データ表示システム及び画像データ表示プログラム |
JP5347794B2 (ja) | 2009-07-21 | 2013-11-20 | ヤマハ株式会社 | エコー抑圧方法およびその装置 |
FR2948484B1 (fr) | 2009-07-23 | 2011-07-29 | Parrot | Procede de filtrage des bruits lateraux non-stationnaires pour un dispositif audio multi-microphone, notamment un dispositif telephonique "mains libres" pour vehicule automobile |
USD614871S1 (en) | 2009-08-07 | 2010-05-04 | Hon Hai Precision Industry Co., Ltd. | Digital photo frame |
US8233352B2 (en) | 2009-08-17 | 2012-07-31 | Broadcom Corporation | Audio source localization system and method |
GB2473267A (en) | 2009-09-07 | 2011-03-09 | Nokia Corp | Processing audio signals to reduce noise |
JP5452158B2 (ja) | 2009-10-07 | 2014-03-26 | 株式会社日立製作所 | 音響監視システム、及び音声集音システム |
GB201011530D0 (en) | 2010-07-08 | 2010-08-25 | Berry Michael T | Encasements comprising phase change materials |
JP5347902B2 (ja) | 2009-10-22 | 2013-11-20 | ヤマハ株式会社 | 音響処理装置 |
US20110096915A1 (en) | 2009-10-23 | 2011-04-28 | Broadcom Corporation | Audio spatialization for conference calls with multiple and moving talkers |
USD643015S1 (en) | 2009-11-05 | 2011-08-09 | Lg Electronics Inc. | Speaker for home theater |
CN102860039B (zh) | 2009-11-12 | 2016-10-19 | 罗伯特·亨利·弗莱特 | 免提电话和/或麦克风阵列以及使用它们的方法和*** |
US8515109B2 (en) | 2009-11-19 | 2013-08-20 | Gn Resound A/S | Hearing aid with beamforming capability |
USD617441S1 (en) | 2009-11-30 | 2010-06-08 | Panasonic Corporation | Ceiling ventilating fan |
CH702399B1 (fr) | 2009-12-02 | 2018-05-15 | Veovox Sa | Appareil et procédé pour la saisie et le traitement de la voix. |
US9058797B2 (en) | 2009-12-15 | 2015-06-16 | Smule, Inc. | Continuous pitch-corrected vocal capture device cooperative with content server for backing track mix |
WO2011087770A2 (en) | 2009-12-22 | 2011-07-21 | Mh Acoustics, Llc | Surface-mounted microphone arrays on flexible printed circuit boards |
US8634569B2 (en) | 2010-01-08 | 2014-01-21 | Conexant Systems, Inc. | Systems and methods for echo cancellation and echo suppression |
EP2360940A1 (en) | 2010-01-19 | 2011-08-24 | Televic NV. | Steerable microphone array system with a first order directional pattern |
USD658153S1 (en) | 2010-01-25 | 2012-04-24 | Lg Electronics Inc. | Home theater receiver |
US8583481B2 (en) | 2010-02-12 | 2013-11-12 | Walter Viveiros | Portable interactive modular selling room |
WO2011101045A1 (en) | 2010-02-19 | 2011-08-25 | Siemens Medical Instruments Pte. Ltd. | Device and method for direction dependent spatial noise reduction |
JP5550406B2 (ja) | 2010-03-23 | 2014-07-16 | 株式会社オーディオテクニカ | 可変指向性マイクロホン |
USD642385S1 (en) | 2010-03-31 | 2011-08-02 | Samsung Electronics Co., Ltd. | Electronic frame |
CN101860776B (zh) | 2010-05-07 | 2013-08-21 | 中国科学院声学研究所 | 一种平面螺旋形传声器阵列 |
US8395653B2 (en) | 2010-05-18 | 2013-03-12 | Polycom, Inc. | Videoconferencing endpoint having multiple voice-tracking cameras |
US8515089B2 (en) | 2010-06-04 | 2013-08-20 | Apple Inc. | Active noise cancellation decisions in a portable audio device |
USD636188S1 (en) | 2010-06-17 | 2011-04-19 | Samsung Electronics Co., Ltd. | Electronic frame |
USD655271S1 (en) | 2010-06-17 | 2012-03-06 | Lg Electronics Inc. | Home theater receiver |
US9094496B2 (en) | 2010-06-18 | 2015-07-28 | Avaya Inc. | System and method for stereophonic acoustic echo cancellation |
AU2011279009A1 (en) | 2010-07-15 | 2013-02-07 | Aliph, Inc. | Wireless conference call telephone |
US8638951B2 (en) | 2010-07-15 | 2014-01-28 | Motorola Mobility Llc | Electronic apparatus for generating modified wideband audio signals based on two or more wideband microphone signals |
US9769519B2 (en) | 2010-07-16 | 2017-09-19 | Enseo, Inc. | Media appliance and method for use of same |
US8755174B2 (en) | 2010-07-16 | 2014-06-17 | Ensco, Inc. | Media appliance and method for use of same |
US8965546B2 (en) | 2010-07-26 | 2015-02-24 | Qualcomm Incorporated | Systems, methods, and apparatus for enhanced acoustic imaging |
US9172345B2 (en) | 2010-07-27 | 2015-10-27 | Bitwave Pte Ltd | Personalized adjustment of an audio device |
CN101894558A (zh) | 2010-08-04 | 2010-11-24 | 华为技术有限公司 | 丢帧恢复方法、设备以及语音增强方法、设备和*** |
BR112012031656A2 (pt) | 2010-08-25 | 2016-11-08 | Asahi Chemical Ind | dispositivo, e método de separação de fontes sonoras, e, programa |
KR101750338B1 (ko) | 2010-09-13 | 2017-06-23 | 삼성전자주식회사 | 마이크의 빔포밍 수행 방법 및 장치 |
US8861756B2 (en) | 2010-09-24 | 2014-10-14 | LI Creative Technologies, Inc. | Microphone array system |
WO2012046256A2 (en) | 2010-10-08 | 2012-04-12 | Optical Fusion Inc. | Audio acoustic echo cancellation for video conferencing |
US8553904B2 (en) | 2010-10-14 | 2013-10-08 | Hewlett-Packard Development Company, L.P. | Systems and methods for performing sound source localization |
US8976977B2 (en) | 2010-10-15 | 2015-03-10 | King's College London | Microphone array |
US9031256B2 (en) | 2010-10-25 | 2015-05-12 | Qualcomm Incorporated | Systems, methods, apparatus, and computer-readable media for orientation-sensitive recording control |
US9552840B2 (en) | 2010-10-25 | 2017-01-24 | Qualcomm Incorporated | Three-dimensional sound capturing and reproducing with multi-microphones |
EP2448289A1 (en) | 2010-10-28 | 2012-05-02 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Apparatus and method for deriving a directional information and computer program product |
KR101715779B1 (ko) | 2010-11-09 | 2017-03-13 | 삼성전자주식회사 | 음원 신호 처리 장치 및 그 방법 |
US11120818B2 (en) | 2010-11-12 | 2021-09-14 | Nokia Technologies Oy | Processing audio with a visual representation of an audio source |
WO2012068174A2 (en) | 2010-11-15 | 2012-05-24 | The Regents Of The University Of California | Method for controlling a speaker array to provide spatialized, localized, and binaural virtual surround sound |
US8761412B2 (en) | 2010-12-16 | 2014-06-24 | Sony Computer Entertainment Inc. | Microphone array steering with image-based source location |
CN103329566A (zh) | 2010-12-20 | 2013-09-25 | 峰力公司 | 用于房间中的语音增强的方法和*** |
US9084038B2 (en) | 2010-12-22 | 2015-07-14 | Sony Corporation | Method of controlling audio recording and electronic device |
KR101761312B1 (ko) | 2010-12-23 | 2017-07-25 | 삼성전자주식회사 | 마이크 어레이를 이용한 방향성 음원 필터링 장치 및 그 제어방법 |
KR101852569B1 (ko) | 2011-01-04 | 2018-06-12 | 삼성전자주식회사 | 은닉 마이크로폰 배치 구조를 가진 마이크로폰 어레이 장치 및 그 마이크로폰 어레이 장치를 포함한 음향 신호 처리 장치 |
US8525868B2 (en) | 2011-01-13 | 2013-09-03 | Qualcomm Incorporated | Variable beamforming with a mobile platform |
JP5395822B2 (ja) | 2011-02-07 | 2014-01-22 | 日本電信電話株式会社 | ズームマイク装置 |
US9100735B1 (en) | 2011-02-10 | 2015-08-04 | Dolby Laboratories Licensing Corporation | Vector noise cancellation |
US20120207335A1 (en) | 2011-02-14 | 2012-08-16 | Nxp B.V. | Ported mems microphone |
US9354310B2 (en) | 2011-03-03 | 2016-05-31 | Qualcomm Incorporated | Systems, methods, apparatus, and computer-readable media for source localization using audible sound and ultrasound |
WO2012119043A1 (en) | 2011-03-03 | 2012-09-07 | David Clark Company Incorporated | Voice activation system and method and communication system and method using the same |
US8929564B2 (en) | 2011-03-03 | 2015-01-06 | Microsoft Corporation | Noise adaptive beamforming for microphone arrays |
WO2012122132A1 (en) | 2011-03-04 | 2012-09-13 | University Of Washington | Dynamic distribution of acoustic energy in a projected sound field and associated systems and methods |
US8942382B2 (en) | 2011-03-22 | 2015-01-27 | Mh Acoustics Llc | Dynamic beamformer processing for acoustic echo cancellation in systems with high acoustic coupling |
US8676728B1 (en) | 2011-03-30 | 2014-03-18 | Rawles Llc | Sound localization with artificial neural network |
US8620650B2 (en) | 2011-04-01 | 2013-12-31 | Bose Corporation | Rejecting noise with paired microphones |
US8811601B2 (en) | 2011-04-04 | 2014-08-19 | Qualcomm Incorporated | Integrated echo cancellation and noise suppression |
US20120262536A1 (en) | 2011-04-14 | 2012-10-18 | Microsoft Corporation | Stereophonic teleconferencing using a microphone array |
GB2494849A (en) | 2011-04-14 | 2013-03-27 | Orbitsound Ltd | Microphone assembly |
WO2012158164A1 (en) | 2011-05-17 | 2012-11-22 | Google Inc. | Using echo cancellation information to limit gain control adaptation |
USD682266S1 (en) | 2011-05-23 | 2013-05-14 | Arcadyan Technology Corporation | WLAN ADSL device |
WO2012159217A1 (en) | 2011-05-23 | 2012-11-29 | Phonak Ag | A method of processing a signal in a hearing instrument, and hearing instrument |
WO2012160459A1 (en) | 2011-05-24 | 2012-11-29 | Koninklijke Philips Electronics N.V. | Privacy sound system |
USD656473S1 (en) | 2011-06-11 | 2012-03-27 | Amx Llc | Wall display |
US9215327B2 (en) | 2011-06-11 | 2015-12-15 | Clearone Communications, Inc. | Methods and apparatuses for multi-channel acoustic echo cancelation |
US9264553B2 (en) | 2011-06-11 | 2016-02-16 | Clearone Communications, Inc. | Methods and apparatuses for echo cancelation with beamforming microphone arrays |
WO2012174159A1 (en) | 2011-06-14 | 2012-12-20 | Rgb Systems, Inc. | Ceiling loudspeaker system |
CN102833664A (zh) | 2011-06-15 | 2012-12-19 | Rgb***公司 | 天花板扩音器*** |
US9973848B2 (en) | 2011-06-21 | 2018-05-15 | Amazon Technologies, Inc. | Signal-enhancing beamforming in an augmented reality environment |
JP5799619B2 (ja) | 2011-06-24 | 2015-10-28 | 船井電機株式会社 | マイクロホンユニット |
DE102011051727A1 (de) | 2011-07-11 | 2013-01-17 | Pinta Acoustic Gmbh | Verfahren und Vorrichtung zur aktiven Schallmaskierung |
US9066055B2 (en) | 2011-07-27 | 2015-06-23 | Texas Instruments Incorporated | Power supply architectures for televisions and other powered devices |
JP5289517B2 (ja) | 2011-07-28 | 2013-09-11 | 株式会社半導体理工学研究センター | センサネットワークシステムとその通信方法 |
EP2552128A1 (en) | 2011-07-29 | 2013-01-30 | Sonion Nederland B.V. | A dual cartridge directional microphone |
CN102915737B (zh) | 2011-07-31 | 2018-01-19 | 中兴通讯股份有限公司 | 一种浊音起始帧后丢帧的补偿方法和装置 |
US9253567B2 (en) | 2011-08-31 | 2016-02-02 | Stmicroelectronics S.R.L. | Array microphone apparatus for generating a beam forming signal and beam forming method thereof |
US10015589B1 (en) | 2011-09-02 | 2018-07-03 | Cirrus Logic, Inc. | Controlling speech enhancement algorithms using near-field spatial statistics |
USD678329S1 (en) | 2011-09-21 | 2013-03-19 | Samsung Electronics Co., Ltd. | Portable multimedia terminal |
USD686182S1 (en) | 2011-09-26 | 2013-07-16 | Nakayo Telecommunications, Inc. | Audio equipment for audio teleconferences |
KR101751749B1 (ko) | 2011-09-27 | 2017-07-03 | 한국전자통신연구원 | 이차원 지향성 스피커 어레이 모듈 |
GB2495130B (en) | 2011-09-30 | 2018-10-24 | Skype | Processing audio signals |
JP5685173B2 (ja) | 2011-10-04 | 2015-03-18 | Toa株式会社 | 拡声システム |
JP5668664B2 (ja) | 2011-10-12 | 2015-02-12 | 船井電機株式会社 | マイクロホン装置、マイクロホン装置を備えた電子機器、マイクロホン装置の製造方法、マイクロホン装置用基板およびマイクロホン装置用基板の製造方法 |
US9143879B2 (en) | 2011-10-19 | 2015-09-22 | James Keith McElveen | Directional audio array apparatus and system |
EP3537436B1 (en) | 2011-10-24 | 2023-12-20 | ZTE Corporation | Frame loss compensation method and apparatus for voice frame signal |
USD693328S1 (en) | 2011-11-09 | 2013-11-12 | Sony Corporation | Speaker box |
GB201120392D0 (en) | 2011-11-25 | 2012-01-11 | Skype Ltd | Processing signals |
US8983089B1 (en) | 2011-11-28 | 2015-03-17 | Rawles Llc | Sound source localization using multiple microphone arrays |
KR101282673B1 (ko) | 2011-12-09 | 2013-07-05 | 현대자동차주식회사 | 음원 위치 추정 방법 |
US9408011B2 (en) | 2011-12-19 | 2016-08-02 | Qualcomm Incorporated | Automated user/sensor location recognition to customize audio performance in a distributed multi-sensor environment |
USD687432S1 (en) | 2011-12-28 | 2013-08-06 | Hon Hai Precision Industry Co., Ltd. | Tablet personal computer |
US9197974B1 (en) | 2012-01-06 | 2015-11-24 | Audience, Inc. | Directional audio capture adaptation based on alternative sensory input |
US8511429B1 (en) | 2012-02-13 | 2013-08-20 | Usg Interiors, Llc | Ceiling panels made from corrugated cardboard |
JP3175622U (ja) | 2012-02-23 | 2012-05-24 | 株式会社ラクテル | 和紙ラベル |
JP5741487B2 (ja) | 2012-02-29 | 2015-07-01 | オムロン株式会社 | マイクロフォン |
USD699712S1 (en) | 2012-02-29 | 2014-02-18 | Clearone Communications, Inc. | Beamforming microphone |
EP2832111B1 (en) | 2012-03-26 | 2018-05-23 | University of Surrey | Acoustic source separation |
CN102646418B (zh) | 2012-03-29 | 2014-07-23 | 北京华夏电通科技股份有限公司 | 一种远程音频交互的多路声学回音消除方法及*** |
US20130282372A1 (en) * | 2012-04-23 | 2013-10-24 | Qualcomm Incorporated | Systems and methods for audio signal processing |
EP2845189B1 (en) | 2012-04-30 | 2018-09-05 | Creative Technology Ltd. | A universal reconfigurable echo cancellation system |
US9336792B2 (en) | 2012-05-07 | 2016-05-10 | Marvell World Trade Ltd. | Systems and methods for voice enhancement in audio conference |
US9423870B2 (en) | 2012-05-08 | 2016-08-23 | Google Inc. | Input determination method |
US20130304476A1 (en) | 2012-05-11 | 2013-11-14 | Qualcomm Incorporated | Audio User Interaction Recognition and Context Refinement |
US20130329908A1 (en) | 2012-06-08 | 2013-12-12 | Apple Inc. | Adjusting audio beamforming settings based on system state |
US20130332156A1 (en) | 2012-06-11 | 2013-12-12 | Apple Inc. | Sensor Fusion to Improve Speech/Audio Processing in a Mobile Device |
US20130343549A1 (en) | 2012-06-22 | 2013-12-26 | Verisilicon Holdings Co., Ltd. | Microphone arrays for generating stereo and surround channels, method of operation thereof and module incorporating the same |
US9560446B1 (en) | 2012-06-27 | 2017-01-31 | Amazon Technologies, Inc. | Sound source locator with distributed microphone array |
US20140003635A1 (en) | 2012-07-02 | 2014-01-02 | Qualcomm Incorporated | Audio signal processing device calibration |
US9065901B2 (en) | 2012-07-03 | 2015-06-23 | Harris Corporation | Electronic communication devices with integrated microphones |
CN104429096B (zh) | 2012-07-13 | 2017-03-08 | 雷蛇(亚太)私人有限公司 | 音频信号输出装置和处理音频信号的方法 |
US20140016794A1 (en) | 2012-07-13 | 2014-01-16 | Conexant Systems, Inc. | Echo cancellation system and method with multiple microphones and multiple speakers |
US9258644B2 (en) | 2012-07-27 | 2016-02-09 | Nokia Technologies Oy | Method and apparatus for microphone beamforming |
JP6102923B2 (ja) | 2012-07-27 | 2017-03-29 | ソニー株式会社 | 情報処理システムおよび記憶媒体 |
US9094768B2 (en) | 2012-08-02 | 2015-07-28 | Crestron Electronics Inc. | Loudspeaker calibration using multiple wireless microphones |
CN102821336B (zh) | 2012-08-08 | 2015-01-21 | 英爵音响(上海)有限公司 | 吸顶式平板音响 |
US9113243B2 (en) | 2012-08-16 | 2015-08-18 | Cisco Technology, Inc. | Method and system for obtaining an audio signal |
USD725059S1 (en) | 2012-08-29 | 2015-03-24 | Samsung Electronics Co., Ltd. | Television receiver |
US9031262B2 (en) | 2012-09-04 | 2015-05-12 | Avid Technology, Inc. | Distributed, self-scaling, network-based architecture for sound reinforcement, mixing, and monitoring |
US8873789B2 (en) | 2012-09-06 | 2014-10-28 | Audix Corporation | Articulating microphone mount |
US9088336B2 (en) | 2012-09-06 | 2015-07-21 | Imagination Technologies Limited | Systems and methods of echo and noise cancellation in voice communication |
EP2893713B1 (en) | 2012-09-10 | 2020-08-12 | Robert Bosch GmbH | Mems microphone package with molded interconnect device |
US10051396B2 (en) | 2012-09-10 | 2018-08-14 | Nokia Technologies Oy | Automatic microphone switching |
USD685346S1 (en) | 2012-09-14 | 2013-07-02 | Research In Motion Limited | Speaker |
US8987842B2 (en) | 2012-09-14 | 2015-03-24 | Solid State System Co., Ltd. | Microelectromechanical system (MEMS) device and fabrication method thereof |
US9549253B2 (en) | 2012-09-26 | 2017-01-17 | Foundation for Research and Technology—Hellas (FORTH) Institute of Computer Science (ICS) | Sound source localization and isolation apparatuses, methods and systems |
WO2014055312A1 (en) | 2012-10-02 | 2014-04-10 | Mh Acoustics, Llc | Earphones having configurable microphone arrays |
US9264799B2 (en) | 2012-10-04 | 2016-02-16 | Siemens Aktiengesellschaft | Method and apparatus for acoustic area monitoring by exploiting ultra large scale arrays of microphones |
US9615172B2 (en) | 2012-10-04 | 2017-04-04 | Siemens Aktiengesellschaft | Broadband sensor location selection using convex optimization in very large scale arrays |
US20140098233A1 (en) | 2012-10-05 | 2014-04-10 | Sensormatic Electronics, LLC | Access Control Reader with Audio Spatial Filtering |
US9232310B2 (en) | 2012-10-15 | 2016-01-05 | Nokia Technologies Oy | Methods, apparatuses and computer program products for facilitating directional audio capture with multiple microphones |
PL401372A1 (pl) | 2012-10-26 | 2014-04-28 | Ivona Software Spółka Z Ograniczoną Odpowiedzialnością | Hybrydowa kompresja danych głosowych w systemach zamiany tekstu na mowę |
US9247367B2 (en) | 2012-10-31 | 2016-01-26 | International Business Machines Corporation | Management system with acoustical measurement for monitoring noise levels |
US9232185B2 (en) | 2012-11-20 | 2016-01-05 | Clearone Communications, Inc. | Audio conferencing system for all-in-one displays |
US9237391B2 (en) | 2012-12-04 | 2016-01-12 | Northwestern Polytechnical University | Low noise differential microphone arrays |
CN103888630A (zh) | 2012-12-20 | 2014-06-25 | 杜比实验室特许公司 | 用于控制声学回声消除的方法和音频处理装置 |
JP2014143678A (ja) | 2012-12-27 | 2014-08-07 | Panasonic Corp | 音声処理システム及び音声処理方法 |
JP6074263B2 (ja) | 2012-12-27 | 2017-02-01 | キヤノン株式会社 | 雑音抑圧装置及びその制御方法 |
CN103903627B (zh) | 2012-12-27 | 2018-06-19 | 中兴通讯股份有限公司 | 一种语音数据的传输方法及装置 |
USD735717S1 (en) | 2012-12-29 | 2015-08-04 | Intel Corporation | Electronic display device |
TWI593294B (zh) | 2013-02-07 | 2017-07-21 | 晨星半導體股份有限公司 | 收音系統與相關方法 |
US9860439B2 (en) | 2013-02-15 | 2018-01-02 | Panasonic Intellectual Property Management Co., Ltd. | Directionality control system, calibration method, horizontal deviation angle computation method, and directionality control method |
US9167326B2 (en) | 2013-02-21 | 2015-10-20 | Core Brands, Llc | In-wall multiple-bay loudspeaker system |
TWM457212U (zh) | 2013-02-21 | 2013-07-11 | Chi Mei Comm Systems Inc | 殼體組件 |
US9294839B2 (en) | 2013-03-01 | 2016-03-22 | Clearone, Inc. | Augmentation of a beamforming microphone array with non-beamforming microphones |
KR101892643B1 (ko) | 2013-03-05 | 2018-08-29 | 애플 인크. | 하나 이상의 청취자들의 위치에 기초한 스피커 어레이의 빔 패턴의 조정 |
CN104053088A (zh) | 2013-03-11 | 2014-09-17 | 联想(北京)有限公司 | 一种麦克风阵列调整方法、麦克风阵列及电子设备 |
US9877580B2 (en) | 2013-03-14 | 2018-01-30 | Rgb Systems, Inc. | Suspended ceiling-mountable enclosure |
US20140357177A1 (en) | 2013-03-14 | 2014-12-04 | Rgb Systems, Inc. | Suspended ceiling-mountable enclosure |
US9516428B2 (en) | 2013-03-14 | 2016-12-06 | Infineon Technologies Ag | MEMS acoustic transducer, MEMS microphone, MEMS microspeaker, array of speakers and method for manufacturing an acoustic transducer |
US9319799B2 (en) | 2013-03-14 | 2016-04-19 | Robert Bosch Gmbh | Microphone package with integrated substrate |
US9661418B2 (en) | 2013-03-15 | 2017-05-23 | Loud Technologies Inc | Method and system for large scale audio system |
US20170206064A1 (en) | 2013-03-15 | 2017-07-20 | JIBO, Inc. | Persistent companion device configuration and deployment platform |
US8861713B2 (en) | 2013-03-17 | 2014-10-14 | Texas Instruments Incorporated | Clipping based on cepstral distance for acoustic echo canceller |
US9788119B2 (en) | 2013-03-20 | 2017-10-10 | Nokia Technologies Oy | Spatial audio apparatus |
CN104065798B (zh) | 2013-03-21 | 2016-08-03 | 华为技术有限公司 | 声音信号处理方法及设备 |
TWI486002B (zh) | 2013-03-29 | 2015-05-21 | Hon Hai Prec Ind Co Ltd | 可消除干擾的電子裝置 |
CN105191345B (zh) | 2013-03-29 | 2016-11-02 | 日产自动车株式会社 | 声源探测用麦克风支承装置 |
US9491561B2 (en) | 2013-04-11 | 2016-11-08 | Broadcom Corporation | Acoustic echo cancellation with internal upmixing |
US9038301B2 (en) | 2013-04-15 | 2015-05-26 | Rose Displays Ltd. | Illuminable panel frame assembly arrangement |
EP2992687B1 (en) | 2013-04-29 | 2018-06-06 | University Of Surrey | Microphone array for acoustic source separation |
US9936290B2 (en) | 2013-05-03 | 2018-04-03 | Qualcomm Incorporated | Multi-channel echo cancellation and noise suppression |
WO2014188231A1 (en) | 2013-05-22 | 2014-11-27 | Nokia Corporation | A shared audio scene apparatus |
US9905243B2 (en) | 2013-05-23 | 2018-02-27 | Nec Corporation | Speech processing system, speech processing method, speech processing program, vehicle including speech processing system on board, and microphone placing method |
GB201309781D0 (en) | 2013-05-31 | 2013-07-17 | Microsoft Corp | Echo cancellation |
US9357080B2 (en) | 2013-06-04 | 2016-05-31 | Broadcom Corporation | Spatial quiescence protection for multi-channel acoustic echo cancellation |
US20140363008A1 (en) | 2013-06-05 | 2014-12-11 | DSP Group | Use of vibration sensor in acoustic echo cancellation |
JP6132910B2 (ja) | 2013-06-11 | 2017-05-24 | Toa株式会社 | マイクロホン装置 |
WO2014205141A1 (en) | 2013-06-18 | 2014-12-24 | Creative Technology Ltd | Headset with end-firing microphone array and automatic calibration of end-firing array |
USD717272S1 (en) | 2013-06-24 | 2014-11-11 | Lg Electronics Inc. | Speaker |
USD743376S1 (en) | 2013-06-25 | 2015-11-17 | Lg Electronics Inc. | Speaker |
EP2819430A1 (en) | 2013-06-27 | 2014-12-31 | Speech Processing Solutions GmbH | Handheld mobile recording device with microphone characteristic selection means |
DE102013213717A1 (de) | 2013-07-12 | 2015-01-15 | Robert Bosch Gmbh | MEMS-Bauelement mit einer Mikrofonstruktur und Verfahren zu dessen Herstellung |
WO2015009748A1 (en) | 2013-07-15 | 2015-01-22 | Dts, Inc. | Spatial calibration of surround sound systems including listener position estimation |
US9257132B2 (en) | 2013-07-16 | 2016-02-09 | Texas Instruments Incorporated | Dominant speech extraction in the presence of diffused and directional noise sources |
USD756502S1 (en) | 2013-07-23 | 2016-05-17 | Applied Materials, Inc. | Gas diffuser assembly |
US9445196B2 (en) | 2013-07-24 | 2016-09-13 | Mh Acoustics Llc | Inter-channel coherence reduction for stereophonic and multichannel acoustic echo cancellation |
JP2015027124A (ja) | 2013-07-24 | 2015-02-05 | 船井電機株式会社 | 給電システム、電子機器、ケーブル、プログラム |
USD725631S1 (en) | 2013-07-31 | 2015-03-31 | Sol Republic Inc. | Speaker |
CN104347076B (zh) | 2013-08-09 | 2017-07-14 | 中国电信股份有限公司 | 网络音频丢包掩蔽方法和装置 |
US9319532B2 (en) | 2013-08-15 | 2016-04-19 | Cisco Technology, Inc. | Acoustic echo cancellation for audio system with bring your own devices (BYOD) |
US9203494B2 (en) | 2013-08-20 | 2015-12-01 | Broadcom Corporation | Communication device with beamforming and methods for use therewith |
USD726144S1 (en) | 2013-08-23 | 2015-04-07 | Panasonic Intellectual Property Management Co., Ltd. | Wireless speaker |
GB2517690B (en) | 2013-08-26 | 2017-02-08 | Canon Kk | Method and device for localizing sound sources placed within a sound environment comprising ambient noise |
USD729767S1 (en) | 2013-09-04 | 2015-05-19 | Samsung Electronics Co., Ltd. | Speaker |
US9549079B2 (en) | 2013-09-05 | 2017-01-17 | Cisco Technology, Inc. | Acoustic echo cancellation for microphone array with dynamically changing beam forming |
US20150070188A1 (en) | 2013-09-09 | 2015-03-12 | Soil IQ, Inc. | Monitoring device and method of use |
US9763004B2 (en) | 2013-09-17 | 2017-09-12 | Alcatel Lucent | Systems and methods for audio conferencing |
CN104464739B (zh) | 2013-09-18 | 2017-08-11 | 华为技术有限公司 | 音频信号处理方法及装置、差分波束形成方法及装置 |
US9591404B1 (en) | 2013-09-27 | 2017-03-07 | Amazon Technologies, Inc. | Beamformer design using constrained convex optimization in three-dimensional space |
US20150097719A1 (en) | 2013-10-03 | 2015-04-09 | Sulon Technologies Inc. | System and method for active reference positioning in an augmented reality environment |
US9466317B2 (en) | 2013-10-11 | 2016-10-11 | Facebook, Inc. | Generating a reference audio fingerprint for an audio signal associated with an event |
EP2866465B1 (en) | 2013-10-25 | 2020-07-22 | Harman Becker Automotive Systems GmbH | Spherical microphone array |
US20150118960A1 (en) | 2013-10-28 | 2015-04-30 | Aliphcom | Wearable communication device |
US9215543B2 (en) | 2013-12-03 | 2015-12-15 | Cisco Technology, Inc. | Microphone mute/unmute notification |
USD727968S1 (en) | 2013-12-17 | 2015-04-28 | Panasonic Intellectual Property Management Co., Ltd. | Digital video disc player |
US20150185825A1 (en) | 2013-12-30 | 2015-07-02 | Daqri, Llc | Assigning a virtual user interface to a physical object |
USD718731S1 (en) | 2014-01-02 | 2014-12-02 | Samsung Electronics Co., Ltd. | Television receiver |
JP6289121B2 (ja) | 2014-01-23 | 2018-03-07 | キヤノン株式会社 | 音響信号処理装置、動画撮影装置およびそれらの制御方法 |
WO2015120475A1 (en) | 2014-02-10 | 2015-08-13 | Bose Corporation | Conversation assistance system |
WO2015123658A1 (en) | 2014-02-14 | 2015-08-20 | Sonic Blocks, Inc. | Modular quick-connect a/v system and methods thereof |
JP6281336B2 (ja) | 2014-03-12 | 2018-02-21 | 沖電気工業株式会社 | 音声復号化装置及びプログラム |
US9226062B2 (en) | 2014-03-18 | 2015-12-29 | Cisco Technology, Inc. | Techniques to mitigate the effect of blocked sound at microphone arrays in a telepresence device |
US9432768B1 (en) | 2014-03-28 | 2016-08-30 | Amazon Technologies, Inc. | Beam forming for a wearable computer |
US9516412B2 (en) | 2014-03-28 | 2016-12-06 | Panasonic Intellectual Property Management Co., Ltd. | Directivity control apparatus, directivity control method, storage medium and directivity control system |
JP2015194753A (ja) | 2014-03-28 | 2015-11-05 | 船井電機株式会社 | マイクロホン装置 |
US20150281832A1 (en) | 2014-03-28 | 2015-10-01 | Panasonic Intellectual Property Management Co., Ltd. | Sound processing apparatus, sound processing system and sound processing method |
GB2521881B (en) | 2014-04-02 | 2016-02-10 | Imagination Tech Ltd | Auto-tuning of non-linear processor threshold |
GB2519392B (en) | 2014-04-02 | 2016-02-24 | Imagination Tech Ltd | Auto-tuning of an acoustic echo canceller |
US10182280B2 (en) | 2014-04-23 | 2019-01-15 | Panasonic Intellectual Property Management Co., Ltd. | Sound processing apparatus, sound processing system and sound processing method |
USD743939S1 (en) | 2014-04-28 | 2015-11-24 | Samsung Electronics Co., Ltd. | Speaker |
EP2942975A1 (en) | 2014-05-08 | 2015-11-11 | Panasonic Corporation | Directivity control apparatus, directivity control method, storage medium and directivity control system |
US9414153B2 (en) | 2014-05-08 | 2016-08-09 | Panasonic Intellectual Property Management Co., Ltd. | Directivity control apparatus, directivity control method, storage medium and directivity control system |
WO2015181727A2 (en) | 2014-05-26 | 2015-12-03 | Vladimir Sherman | Methods circuits devices systems and associated computer executable code for acquiring acoustic signals |
USD740279S1 (en) | 2014-05-29 | 2015-10-06 | Compal Electronics, Inc. | Chromebook with trapezoid shape |
DE102014217344A1 (de) | 2014-06-05 | 2015-12-17 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Lautsprechersystem |
CN104036784B (zh) | 2014-06-06 | 2017-03-08 | 华为技术有限公司 | 一种回声消除方法及装置 |
US9451362B2 (en) | 2014-06-11 | 2016-09-20 | Honeywell International Inc. | Adaptive beam forming devices, methods, and systems |
JP1525681S (zh) | 2014-06-18 | 2017-05-22 | ||
US9589556B2 (en) | 2014-06-19 | 2017-03-07 | Yang Gao | Energy adjustment of acoustic echo replica signal for speech enhancement |
USD737245S1 (en) | 2014-07-03 | 2015-08-25 | Wall Audio, Inc. | Planar loudspeaker |
USD754092S1 (en) | 2014-07-11 | 2016-04-19 | Harman International Industries, Incorporated | Portable loudspeaker |
JP6149818B2 (ja) | 2014-07-18 | 2017-06-21 | 沖電気工業株式会社 | 収音再生システム、収音再生装置、収音再生方法、収音再生プログラム、収音システム及び再生システム |
US9949033B2 (en) | 2014-07-23 | 2018-04-17 | The Australian National University | Planar sensor array |
US9762742B2 (en) | 2014-07-24 | 2017-09-12 | Conexant Systems, Llc | Robust acoustic echo cancellation for loosely paired devices based on semi-blind multichannel demixing |
JP6210458B2 (ja) | 2014-07-30 | 2017-10-11 | パナソニックIpマネジメント株式会社 | 故障検知システム及び故障検知方法 |
JP6446893B2 (ja) | 2014-07-31 | 2019-01-09 | 富士通株式会社 | エコー抑圧装置、エコー抑圧方法及びエコー抑圧用コンピュータプログラム |
US20160031700A1 (en) | 2014-08-01 | 2016-02-04 | Pixtronix, Inc. | Microelectromechanical microphone |
US9326060B2 (en) | 2014-08-04 | 2016-04-26 | Apple Inc. | Beamforming in varying sound pressure level |
JP6202277B2 (ja) | 2014-08-05 | 2017-09-27 | パナソニックIpマネジメント株式会社 | 音声処理システム及び音声処理方法 |
CN106576205B (zh) | 2014-08-13 | 2019-06-21 | 三菱电机株式会社 | 回声消除装置 |
US9940944B2 (en) | 2014-08-19 | 2018-04-10 | Qualcomm Incorporated | Smart mute for a communication device |
EP2988527A1 (en) | 2014-08-21 | 2016-02-24 | Patents Factory Ltd. Sp. z o.o. | System and method for detecting location of sound sources in a three-dimensional space |
US10269343B2 (en) | 2014-08-28 | 2019-04-23 | Analog Devices, Inc. | Audio processing using an intelligent microphone |
JP2016051038A (ja) * | 2014-08-29 | 2016-04-11 | 株式会社Jvcケンウッド | ノイズゲート装置 |
US10061009B1 (en) | 2014-09-30 | 2018-08-28 | Apple Inc. | Robust confidence measure for beamformed acoustic beacon for device tracking and localization |
US20160100092A1 (en) | 2014-10-01 | 2016-04-07 | Fortemedia, Inc. | Object tracking device and tracking method thereof |
US9521057B2 (en) | 2014-10-14 | 2016-12-13 | Amazon Technologies, Inc. | Adaptive audio stream with latency compensation |
GB2527865B (en) | 2014-10-30 | 2016-12-14 | Imagination Tech Ltd | Controlling operational characteristics of an acoustic echo canceller |
GB2525947B (en) | 2014-10-31 | 2016-06-22 | Imagination Tech Ltd | Automatic tuning of a gain controller |
US20160150315A1 (en) | 2014-11-20 | 2016-05-26 | GM Global Technology Operations LLC | System and method for echo cancellation |
KR101990370B1 (ko) | 2014-11-26 | 2019-06-18 | 한화테크윈 주식회사 | 카메라 시스템 및 카메라 시스템 동작 방법 |
US9654868B2 (en) | 2014-12-05 | 2017-05-16 | Stages Llc | Multi-channel multi-domain source identification and tracking |
WO2016098315A1 (ja) | 2014-12-15 | 2016-06-23 | パナソニックIpマネジメント株式会社 | マイクアレイ、監視システム及び収音設定方法 |
CN105812598B (zh) | 2014-12-30 | 2019-04-30 | 展讯通信(上海)有限公司 | 一种降低回声的方法及装置 |
US9525934B2 (en) | 2014-12-31 | 2016-12-20 | Stmicroelectronics Asia Pacific Pte Ltd. | Steering vector estimation for minimum variance distortionless response (MVDR) beamforming circuits, systems, and methods |
USD754103S1 (en) | 2015-01-02 | 2016-04-19 | Harman International Industries, Incorporated | Loudspeaker |
JP2016146547A (ja) | 2015-02-06 | 2016-08-12 | パナソニックIpマネジメント株式会社 | 収音システム及び収音方法 |
US20160249132A1 (en) | 2015-02-23 | 2016-08-25 | Invensense, Inc. | Sound source localization using sensor fusion |
US20160275961A1 (en) | 2015-03-18 | 2016-09-22 | Qualcomm Technologies International, Ltd. | Structure for multi-microphone speech enhancement system |
CN106162427B (zh) | 2015-03-24 | 2019-09-17 | 青岛海信电器股份有限公司 | 一种声音获取元件的指向性调整方法和装置 |
US9716944B2 (en) | 2015-03-30 | 2017-07-25 | Microsoft Technology Licensing, Llc | Adjustable audio beamforming |
US9924224B2 (en) | 2015-04-03 | 2018-03-20 | The Nielsen Company (Us), Llc | Methods and apparatus to determine a state of a media presentation device |
WO2016162560A1 (de) | 2015-04-10 | 2016-10-13 | Sennheiser Electronic Gmbh & Co. Kg | Verfahren zur erfassung und synchronisation von audio- und videosignalen und audio/video-erfassungs- und synchronisationssystem |
USD784299S1 (en) | 2015-04-30 | 2017-04-18 | Shure Acquisition Holdings, Inc. | Array microphone assembly |
US9565493B2 (en) | 2015-04-30 | 2017-02-07 | Shure Acquisition Holdings, Inc. | Array microphone system and method of assembling the same |
US9554207B2 (en) | 2015-04-30 | 2017-01-24 | Shure Acquisition Holdings, Inc. | Offset cartridge microphones |
WO2016179211A1 (en) | 2015-05-04 | 2016-11-10 | Rensselaer Polytechnic Institute | Coprime microphone array system |
US10028053B2 (en) | 2015-05-05 | 2018-07-17 | Wave Sciences, LLC | Portable computing device microphone array |
WO2016183791A1 (zh) | 2015-05-19 | 2016-11-24 | 华为技术有限公司 | 一种语音信号处理方法及装置 |
USD801285S1 (en) | 2015-05-29 | 2017-10-31 | Optical Cable Corporation | Ceiling mount box |
US10412483B2 (en) | 2015-05-30 | 2019-09-10 | Audix Corporation | Multi-element shielded microphone and suspension system |
US10452339B2 (en) | 2015-06-05 | 2019-10-22 | Apple Inc. | Mechanism for retrieval of previously captured audio |
TWD179475S (zh) | 2015-07-14 | 2016-11-11 | 宏碁股份有限公司 | 筆記型電腦之部分 |
US10909384B2 (en) | 2015-07-14 | 2021-02-02 | Panasonic Intellectual Property Management Co., Ltd. | Monitoring system and monitoring method |
CN106403016B (zh) | 2015-07-30 | 2019-07-26 | Lg电子株式会社 | 空调机的室内机 |
EP3131311B1 (en) | 2015-08-14 | 2019-06-19 | Nokia Technologies Oy | Monitoring |
US20170064451A1 (en) | 2015-08-25 | 2017-03-02 | New York University | Ubiquitous sensing environment |
US9655001B2 (en) | 2015-09-24 | 2017-05-16 | Cisco Technology, Inc. | Cross mute for native radio channels |
US20180292079A1 (en) | 2015-10-07 | 2018-10-11 | Tony J. Branham | Lighted mirror with sound system |
US9961437B2 (en) | 2015-10-08 | 2018-05-01 | Signal Essence, LLC | Dome shaped microphone array with circularly distributed microphones |
USD787481S1 (en) | 2015-10-21 | 2017-05-23 | Cisco Technology, Inc. | Microphone support |
CN105355210B (zh) | 2015-10-30 | 2020-06-23 | 百度在线网络技术(北京)有限公司 | 用于远场语音识别的预处理方法和装置 |
KR102070965B1 (ko) | 2015-11-18 | 2020-01-29 | 후아웨이 테크놀러지 컴퍼니 리미티드 | 소리 신호를 강화하는 소리 신호 처리 장치 및 방법 |
US9894434B2 (en) | 2015-12-04 | 2018-02-13 | Sennheiser Electronic Gmbh & Co. Kg | Conference system with a microphone array system and a method of speech acquisition in a conference system |
US11064291B2 (en) | 2015-12-04 | 2021-07-13 | Sennheiser Electronic Gmbh & Co. Kg | Microphone array system |
US9479885B1 (en) | 2015-12-08 | 2016-10-25 | Motorola Mobility Llc | Methods and apparatuses for performing null steering of adaptive microphone array |
US9641935B1 (en) | 2015-12-09 | 2017-05-02 | Motorola Mobility Llc | Methods and apparatuses for performing adaptive equalization of microphone arrays |
US9479627B1 (en) | 2015-12-29 | 2016-10-25 | Gn Audio A/S | Desktop speakerphone |
USD788073S1 (en) | 2015-12-29 | 2017-05-30 | Sdi Technologies, Inc. | Mono bluetooth speaker |
CN105548998B (zh) | 2016-02-02 | 2018-03-30 | 北京地平线机器人技术研发有限公司 | 基于麦克阵列的声音定位装置和方法 |
US9721582B1 (en) | 2016-02-03 | 2017-08-01 | Google Inc. | Globally optimized least-squares post-filtering for speech enhancement |
US10537300B2 (en) | 2016-04-25 | 2020-01-21 | Wisconsin Alumni Research Foundation | Head mounted microphone array for tinnitus diagnosis |
US9851938B2 (en) | 2016-04-26 | 2017-12-26 | Analog Devices, Inc. | Microphone arrays and communication systems for directional reception |
USD819607S1 (en) | 2016-04-26 | 2018-06-05 | Samsung Electronics Co., Ltd. | Microphone |
EP3253075B1 (en) | 2016-05-30 | 2019-03-20 | Oticon A/s | A hearing aid comprising a beam former filtering unit comprising a smoothing unit |
GB201609784D0 (en) | 2016-06-03 | 2016-07-20 | Craven Peter G And Travis Christopher | Microphone array providing improved horizontal directivity |
US9659576B1 (en) | 2016-06-13 | 2017-05-23 | Biamp Systems Corporation | Beam forming and acoustic echo cancellation with mutual adaptation control |
ITUA20164622A1 (it) | 2016-06-23 | 2017-12-23 | St Microelectronics Srl | Procedimento di beamforming basato su matrici di microfoni e relativo apparato |
EP3488439B1 (en) | 2016-07-22 | 2021-08-11 | Dolby Laboratories Licensing Corporation | Network-based processing and distribution of multimedia content of a live musical performance |
USD841589S1 (en) | 2016-08-03 | 2019-02-26 | Gedia Gebrueder Dingerkus Gmbh | Housings for electric conductors |
CN106251857B (zh) | 2016-08-16 | 2019-08-20 | 青岛歌尔声学科技有限公司 | 声源方向判断装置、方法及麦克风指向性调节***、方法 |
US9628596B1 (en) | 2016-09-09 | 2017-04-18 | Sorenson Ip Holdings, Llc | Electronic device including a directional microphone |
US10454794B2 (en) | 2016-09-20 | 2019-10-22 | Cisco Technology, Inc. | 3D wireless network monitoring using virtual reality and augmented reality |
US9794720B1 (en) | 2016-09-22 | 2017-10-17 | Sonos, Inc. | Acoustic position measurement |
JP1580363S (zh) | 2016-09-27 | 2017-07-03 | ||
EP3520437A1 (en) | 2016-09-29 | 2019-08-07 | Dolby Laboratories Licensing Corporation | Method, systems and apparatus for determining audio representation(s) of one or more audio sources |
US10475471B2 (en) | 2016-10-11 | 2019-11-12 | Cirrus Logic, Inc. | Detection of acoustic impulse events in voice applications using a neural network |
US10242696B2 (en) * | 2016-10-11 | 2019-03-26 | Cirrus Logic, Inc. | Detection of acoustic impulse events in voice applications |
US9930448B1 (en) | 2016-11-09 | 2018-03-27 | Northwestern Polytechnical University | Concentric circular differential microphone arrays and associated beamforming |
US9980042B1 (en) | 2016-11-18 | 2018-05-22 | Stages Llc | Beamformer direction of arrival and orientation analysis system |
US20190273988A1 (en) | 2016-11-21 | 2019-09-05 | Harman Becker Automotive Systems Gmbh | Beamsteering |
GB2557219A (en) | 2016-11-30 | 2018-06-20 | Nokia Technologies Oy | Distributed audio capture and mixing controlling |
USD811393S1 (en) | 2016-12-28 | 2018-02-27 | Samsung Display Co., Ltd. | Display device |
WO2018121971A1 (en) | 2016-12-30 | 2018-07-05 | Harman Becker Automotive Systems Gmbh | Acoustic echo canceling |
US10552014B2 (en) | 2017-01-10 | 2020-02-04 | Cast Group Of Companies Inc. | Systems and methods for tracking and interacting with zones in 3D space |
US10021515B1 (en) | 2017-01-12 | 2018-07-10 | Oracle International Corporation | Method and system for location estimation |
US10097920B2 (en) | 2017-01-13 | 2018-10-09 | Bose Corporation | Capturing wide-band audio using microphone arrays and passive directional acoustic elements |
US10367948B2 (en) | 2017-01-13 | 2019-07-30 | Shure Acquisition Holdings, Inc. | Post-mixing acoustic echo cancellation systems and methods |
CN106851036B (zh) | 2017-01-20 | 2019-08-30 | 广州广哈通信股份有限公司 | 一种共线语音会议分散混音*** |
WO2018140444A1 (en) | 2017-01-26 | 2018-08-02 | Walmart Apollo, Llc | Shopping cart and associated systems and methods |
WO2018140618A1 (en) | 2017-01-27 | 2018-08-02 | Shure Acquisiton Holdings, Inc. | Array microphone module and system |
US10389885B2 (en) | 2017-02-01 | 2019-08-20 | Cisco Technology, Inc. | Full-duplex adaptive echo cancellation in a conference endpoint |
WO2018144850A1 (en) | 2017-02-02 | 2018-08-09 | Bose Corporation | Conference room audio setup |
US10366702B2 (en) | 2017-02-08 | 2019-07-30 | Logitech Europe, S.A. | Direction detection device for acquiring and processing audible input |
CN110603582A (zh) | 2017-03-09 | 2019-12-20 | 爱浮诺亚股份有限公司 | 实时声学处理器 |
USD860319S1 (en) | 2017-04-21 | 2019-09-17 | Any Pte. Ltd | Electronic display unit |
US20180313558A1 (en) | 2017-04-27 | 2018-11-01 | Cisco Technology, Inc. | Smart ceiling and floor tiles |
CN107221336B (zh) | 2017-05-13 | 2020-08-21 | 深圳海岸语音技术有限公司 | 一种增强目标语音的装置及其方法 |
US10165386B2 (en) | 2017-05-16 | 2018-12-25 | Nokia Technologies Oy | VR audio superzoom |
US10971169B2 (en) * | 2017-05-19 | 2021-04-06 | Audio-Technica Corporation | Sound signal processing device |
US10153744B1 (en) | 2017-08-02 | 2018-12-11 | 2236008 Ontario Inc. | Automatically tuning an audio compressor to prevent distortion |
US11798544B2 (en) | 2017-08-07 | 2023-10-24 | Polycom, Llc | Replying to a spoken command |
KR102478951B1 (ko) | 2017-09-04 | 2022-12-20 | 삼성전자주식회사 | 비선형 특성을 갖는 오디오 필터를 이용하여 오디오 신호를 처리하는 방법 및 장치 |
US9966059B1 (en) | 2017-09-06 | 2018-05-08 | Amazon Technologies, Inc. | Reconfigurale fixed beam former using given microphone array |
CN111052766B (zh) | 2017-09-07 | 2021-07-27 | 三菱电机株式会社 | 噪音去除装置及噪音去除方法 |
USD883952S1 (en) | 2017-09-11 | 2020-05-12 | Clean Energy Labs, Llc | Audio speaker |
CN111148927B (zh) | 2017-09-27 | 2023-06-02 | 国际工程控制公司 | 组合调节器阀 |
USD888020S1 (en) | 2017-10-23 | 2020-06-23 | Raven Technology (Beijing) Co., Ltd. | Speaker cover |
US20190166424A1 (en) | 2017-11-28 | 2019-05-30 | Invensense, Inc. | Microphone mesh network |
USD860997S1 (en) | 2017-12-11 | 2019-09-24 | Crestron Electronics, Inc. | Lid and bezel of flip top unit |
CN108172235B (zh) | 2017-12-26 | 2021-05-14 | 南京信息工程大学 | 基于维纳后置滤波的ls波束形成混响抑制方法 |
US10979805B2 (en) | 2018-01-04 | 2021-04-13 | Stmicroelectronics, Inc. | Microphone array auto-directive adaptive wideband beamforming using orientation information from MEMS sensors |
USD864136S1 (en) | 2018-01-05 | 2019-10-22 | Samsung Electronics Co., Ltd. | Television receiver |
US10720173B2 (en) | 2018-02-21 | 2020-07-21 | Bose Corporation | Voice capture processing modified by back end audio processing state |
JP7022929B2 (ja) | 2018-02-26 | 2022-02-21 | パナソニックIpマネジメント株式会社 | ワイヤレスマイクシステム、受信機及び無線同期方法 |
US10566008B2 (en) | 2018-03-02 | 2020-02-18 | Cirrus Logic, Inc. | Method and apparatus for acoustic echo suppression |
USD857873S1 (en) | 2018-03-02 | 2019-08-27 | Panasonic Intellectual Property Management Co., Ltd. | Ceiling ventilation fan |
CN208190895U (zh) | 2018-03-23 | 2018-12-04 | 阿里巴巴集团控股有限公司 | 拾音模组、电子设备及贩卖机 |
US20190295540A1 (en) | 2018-03-23 | 2019-09-26 | Cirrus Logic International Semiconductor Ltd. | Voice trigger validator |
CN108510987B (zh) | 2018-03-26 | 2020-10-23 | 北京小米移动软件有限公司 | 语音处理方法及装置 |
EP3553968A1 (en) | 2018-04-13 | 2019-10-16 | Peraso Technologies Inc. | Single-carrier wideband beamforming method and system |
US11494158B2 (en) | 2018-05-31 | 2022-11-08 | Shure Acquisition Holdings, Inc. | Augmented reality microphone pick-up pattern visualization |
JP7422685B2 (ja) | 2018-05-31 | 2024-01-26 | シュアー アクイジッション ホールディングス インコーポレイテッド | 自動ミキシング用のインテリジェント音声起動のためのシステムおよび方法 |
WO2019231632A1 (en) | 2018-06-01 | 2019-12-05 | Shure Acquisition Holdings, Inc. | Pattern-forming microphone array |
WO2019240940A1 (en) | 2018-06-15 | 2019-12-19 | Shure Acquisition Holdings, Inc. | Systems and methods for integrated conferencing platform |
US11297423B2 (en) | 2018-06-15 | 2022-04-05 | Shure Acquisition Holdings, Inc. | Endfire linear array microphone |
EP4093055A1 (en) | 2018-06-25 | 2022-11-23 | Oticon A/s | A hearing device comprising a feedback reduction system |
US10210882B1 (en) | 2018-06-25 | 2019-02-19 | Biamp Systems, LLC | Microphone array with automated adaptive beam tracking |
CN109087664B (zh) | 2018-08-22 | 2022-09-02 | 中国科学技术大学 | 语音增强方法 |
CN112889296A (zh) | 2018-09-20 | 2021-06-01 | 舒尔获得控股公司 | 用于阵列麦克风的可调整的波瓣形状 |
US11109133B2 (en) | 2018-09-21 | 2021-08-31 | Shure Acquisition Holdings, Inc. | Array microphone module and system |
JP7334406B2 (ja) | 2018-10-24 | 2023-08-29 | ヤマハ株式会社 | アレイマイクロフォンおよび収音方法 |
US10972835B2 (en) | 2018-11-01 | 2021-04-06 | Sennheiser Electronic Gmbh & Co. Kg | Conference system with a microphone array system and a method of speech acquisition in a conference system |
US10887467B2 (en) | 2018-11-20 | 2021-01-05 | Shure Acquisition Holdings, Inc. | System and method for distributed call processing and audio reinforcement in conferencing environments |
CN109727604B (zh) | 2018-12-14 | 2023-11-10 | 上海蔚来汽车有限公司 | 用于语音识别前端的频域回声消除方法及计算机储存介质 |
US10959018B1 (en) | 2019-01-18 | 2021-03-23 | Amazon Technologies, Inc. | Method for autonomous loudspeaker room adaptation |
CN109862200B (zh) | 2019-02-22 | 2021-02-12 | 北京达佳互联信息技术有限公司 | 语音处理方法、装置、电子设备及存储介质 |
US11457309B2 (en) | 2019-02-27 | 2022-09-27 | Crestron Electronics, Inc. | Millimeter wave sensor used to optimize performance of a beamforming microphone array |
CN110010147B (zh) | 2019-03-15 | 2021-07-27 | 厦门大学 | 一种麦克风阵列语音增强的方法和*** |
US11558693B2 (en) | 2019-03-21 | 2023-01-17 | Shure Acquisition Holdings, Inc. | Auto focus, auto focus within regions, and auto placement of beamformed microphone lobes with inhibition and voice activity detection functionality |
TW202044236A (zh) | 2019-03-21 | 2020-12-01 | 美商舒爾獲得控股公司 | 具有抑制功能的波束形成麥克風瓣之自動對焦、區域內自動對焦、及自動配置 |
US11303981B2 (en) | 2019-03-21 | 2022-04-12 | Shure Acquisition Holdings, Inc. | Housings and associated design features for ceiling array microphones |
USD924189S1 (en) | 2019-04-29 | 2021-07-06 | Lg Electronics Inc. | Television receiver |
USD900072S1 (en) | 2019-05-15 | 2020-10-27 | Shure Acquisition Holdings, Inc. | Housing for a ceiling array microphone |
USD900071S1 (en) | 2019-05-15 | 2020-10-27 | Shure Acquisition Holdings, Inc. | Housing for a ceiling array microphone |
USD900070S1 (en) | 2019-05-15 | 2020-10-27 | Shure Acquisition Holdings, Inc. | Housing for a ceiling array microphone |
USD900074S1 (en) | 2019-05-15 | 2020-10-27 | Shure Acquisition Holdings, Inc. | Housing for a ceiling array microphone |
USD900073S1 (en) | 2019-05-15 | 2020-10-27 | Shure Acquisition Holdings, Inc. | Housing for a ceiling array microphone |
US11127414B2 (en) | 2019-07-09 | 2021-09-21 | Blackberry Limited | System and method for reducing distortion and echo leakage in hands-free communication |
US10984815B1 (en) | 2019-09-27 | 2021-04-20 | Cypress Semiconductor Corporation | Techniques for removing non-linear echo in acoustic echo cancellers |
KR102647154B1 (ko) | 2019-12-31 | 2024-03-14 | 삼성전자주식회사 | 디스플레이 장치 |
-
2020
- 2020-05-29 WO PCT/US2020/035185 patent/WO2020243471A1/en unknown
- 2020-05-29 US US16/887,407 patent/US11302347B2/en active Active
- 2020-05-29 EP EP20760614.6A patent/EP3977449A1/en active Pending
- 2020-05-29 TW TW109118215A patent/TW202105369A/zh unknown
- 2020-05-29 CN CN202080048155.6A patent/CN114051637A/zh active Pending
- 2020-05-29 JP JP2021571323A patent/JP2022535229A/ja active Pending
-
2022
- 2022-04-11 US US17/717,584 patent/US11688418B2/en active Active
Also Published As
Publication number | Publication date |
---|---|
EP3977449A1 (en) | 2022-04-06 |
US20230057506A1 (en) | 2023-02-23 |
US11302347B2 (en) | 2022-04-12 |
TW202105369A (zh) | 2021-02-01 |
US20200381009A1 (en) | 2020-12-03 |
WO2020243471A1 (en) | 2020-12-03 |
JP2022535229A (ja) | 2022-08-05 |
US11688418B2 (en) | 2023-06-27 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN114051637A (zh) | 集成语音及噪声活动检测的低延时自动混波器 | |
Roman et al. | Speech intelligibility in reverberation with ideal binary masking: Effects of early reflections and signal-to-noise ratio threshold | |
JP5341983B2 (ja) | サラウンド体験に対する影響を最小限にしてマルチチャンネルオーディオにおけるスピーチの聴覚性を維持するための方法及び装置 | |
Watkins | Perceptual compensation for effects of reverberation in speech identification | |
US10237412B2 (en) | System and method for audio conferencing | |
CN112424863B (zh) | 语音感知音频***及方法 | |
US9979769B2 (en) | System and method for audio conferencing | |
US9408010B2 (en) | Audio system and method therefor | |
JP2023159381A (ja) | 音声認識オーディオシステムおよび方法 | |
US9749741B1 (en) | Systems and methods for reducing intermodulation distortion | |
US20220369031A1 (en) | Deep neural network denoiser mask generation system for audio processing | |
US10096329B2 (en) | Enhancing intelligibility of speech content in an audio signal | |
Jokinen et al. | Signal-to-noise ratio adaptive post-filtering method for intelligibility enhancement of telephone speech | |
CN112585868B (zh) | 响应于压缩反馈进行音频增强 | |
CN114303188A (zh) | 针对机器感知预调节音频 | |
CN109841223B (zh) | 一种音频信号处理方法、智能终端及存储介质 | |
Wendt et al. | Precedence effect for specular and diffuse reflections | |
Künzel et al. | Forensic automatic speaker recognition with degraded and enhanced speech | |
KR20160106951A (ko) | 소음 환경에서 음절 형태 기반 음소 가중 기법을 이용한 음성의 명료도 향상 방법 및 이를 기록한 기록매체 | |
Freyman et al. | Consonant confusions in amplitude-expanded speech | |
US11343635B2 (en) | Stereo audio | |
Matsumoto | Noise reduction with complex bilateral filter | |
EP4303874A1 (en) | Providing a measure of intelligibility of an audio signal | |
US10720171B1 (en) | Audio processing | |
WO2017106281A1 (en) | Nuisance notification |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination |