JPWO2021131346A1 - - Google Patents

Info

Publication number
JPWO2021131346A1
JPWO2021131346A1 JP2021566886A JP2021566886A JPWO2021131346A1 JP WO2021131346 A1 JPWO2021131346 A1 JP WO2021131346A1 JP 2021566886 A JP2021566886 A JP 2021566886A JP 2021566886 A JP2021566886 A JP 2021566886A JP WO2021131346 A1 JPWO2021131346 A1 JP WO2021131346A1
Authority
JP
Japan
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
Application number
JP2021566886A
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed filed Critical
Publication of JPWO2021131346A1 publication Critical patent/JPWO2021131346A1/ja
Pending legal-status Critical Current

Links

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
    • G10L21/0216—Noise filtering characterised by the method used for estimating noise
    • G10L21/0224—Processing in the time domain
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/175—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound
    • G10K11/178—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound by electro-acoustically regenerating the original acoustic waves in anti-phase
    • G10K11/1785—Methods, e.g. algorithms; Devices
    • G10K11/17853—Methods, e.g. algorithms; Devices of the filter
    • G10K11/17854—Methods, e.g. algorithms; Devices of the filter the filter being an adaptive filter
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M9/00—Arrangements for interconnection not involving centralised switching
    • H04M9/08—Two-way loud-speaking telephone systems with means for conditioning the signal, e.g. for suppressing echoes for one or both directions of traffic
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M9/00—Arrangements for interconnection not involving centralised switching
    • H04M9/08—Two-way loud-speaking telephone systems with means for conditioning the signal, e.g. for suppressing echoes for one or both directions of traffic
    • H04M9/082—Two-way loud-speaking telephone systems with means for conditioning the signal, e.g. for suppressing echoes for one or both directions of traffic using echo cancellers
    • 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
    • H04R3/02—Circuits for transducers, loudspeakers or microphones for preventing acoustic reaction, i.e. acoustic oscillatory feedback
    • 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
    • G10L2021/02082—Noise filtering the noise being echo, reverberation of the speech
    • 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
    • H04R3/005—Circuits for transducers, loudspeakers or microphones for combining the signals of two or more microphones

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • General Health & Medical Sciences (AREA)
  • Multimedia (AREA)
  • Computational Linguistics (AREA)
  • Quality & Reliability (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
  • Filters That Use Time-Delay Elements (AREA)
  • Circuit For Audible Band Transducer (AREA)
JP2021566886A 2019-12-26 2020-11-05 Pending JPWO2021131346A1 (ja)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US201962953737P 2019-12-26 2019-12-26
JP2020144392 2020-08-28
PCT/JP2020/041412 WO2021131346A1 (ja) 2019-12-26 2020-11-05 収音装置、収音方法及び収音プログラム

Publications (1)

Publication Number Publication Date
JPWO2021131346A1 true JPWO2021131346A1 (ja) 2021-07-01

Family

ID=76574032

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2021566886A Pending JPWO2021131346A1 (ja) 2019-12-26 2020-11-05

Country Status (5)

Country Link
US (1) US11967304B2 (ja)
EP (1) EP4064726A4 (ja)
JP (1) JPWO2021131346A1 (ja)
CN (1) CN114830232A (ja)
WO (1) WO2021131346A1 (ja)

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4681163B2 (ja) * 2001-07-16 2011-05-11 パナソニック株式会社 ハウリング検出抑圧装置、これを備えた音響装置、及び、ハウリング検出抑圧方法
JP4705893B2 (ja) * 2006-08-10 2011-06-22 Ｏｋｉセミコンダクタ株式会社 エコーキャンセラ
JP2009094802A (ja) * 2007-10-09 2009-04-30 Renesas Technology Corp 通信装置
JP5205935B2 (ja) 2007-11-19 2013-06-05 日本電気株式会社 雑音消去装置、雑音消去方法および雑音消去プログラム
SE533956C2 (sv) * 2009-07-20 2011-03-15 Limes Audio Ab Enhet och metod för styrning av restekodämpning
US8934620B2 (en) * 2011-04-01 2015-01-13 Cogent Signals, Inc. Acoustic echo cancellation for high noise and excessive double talk
CN104050971A (zh) * 2013-03-15 2014-09-17 杜比实验室特许公司 声学回声减轻装置和方法、音频处理装置和语音通信终端
US10460744B2 (en) * 2016-02-04 2019-10-29 Xinxiao Zeng Methods, systems, and media for voice communication

Also Published As

Publication number Publication date
EP4064726A1 (en) 2022-09-28
CN114830232A (zh) 2022-07-29
US20220319489A1 (en) 2022-10-06
US11967304B2 (en) 2024-04-23
WO2021131346A1 (ja) 2021-07-01
EP4064726A4 (en) 2023-03-15

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Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20230913