HK1082093A1 - Spectral band replication and high frequency reconstruction audio coding methods and apparatuses using adaptive noise-floor addition and noise substitution limiting - Google Patents

Spectral band replication and high frequency reconstruction audio coding methods and apparatuses using adaptive noise-floor addition and noise substitution limiting

Info

Publication number
HK1082093A1
HK1082093A1 HK06102094A HK06102094A HK1082093A1 HK 1082093 A1 HK1082093 A1 HK 1082093A1 HK 06102094 A HK06102094 A HK 06102094A HK 06102094 A HK06102094 A HK 06102094A HK 1082093 A1 HK1082093 A1 HK 1082093A1
Authority
HK
Hong Kong
Prior art keywords
noise
high frequency
audio coding
apparatuses
frequency reconstruction
Prior art date
Application number
HK06102094A
Other languages
English (en)
Inventor
Liljeryd Lars
Kuorling Kristofe
Ekstrand Per
Henn Fredrik
Original Assignee
Coding Tech Ab
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=26663489&utm_source=***_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=HK1082093(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Priority claimed from SE9900256A external-priority patent/SE9900256D0/xx
Application filed by Coding Tech Ab filed Critical Coding Tech Ab
Publication of HK1082093A1 publication Critical patent/HK1082093A1/xx

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
    • G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • G10L19/02—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using spectral analysis, e.g. transform vocoders or subband vocoders
    • G10L19/028—Noise substitution, i.e. substituting non-tonal spectral components by noisy source
    • 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
    • G10L21/038—Speech enhancement, e.g. noise reduction or echo cancellation using band spreading techniques
    • 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
    • G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • G10L19/04—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using predictive techniques
    • G10L19/06—Determination or coding of the spectral characteristics, e.g. of the short-term prediction coefficients
    • 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
    • G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • G10L19/04—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using predictive techniques
    • G10L19/26—Pre-filtering or post-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
    • G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • G10L19/04—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using predictive techniques
    • G10L19/26—Pre-filtering or post-filtering
    • G10L19/265—Pre-filtering, e.g. high frequency emphasis prior to encoding
    • 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
    • G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • G10L19/02—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using spectral analysis, e.g. transform vocoders or subband vocoders
    • G10L19/032—Quantisation or dequantisation of spectral components
    • G10L19/035—Scalar quantisation
    • 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
    • G10L25/03—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 characterised by the type of extracted parameters
    • G10L25/18—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 characterised by the type of extracted parameters the extracted parameters being spectral information of each sub-band

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Multimedia (AREA)
  • Computational Linguistics (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Acoustics & Sound (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Quality & Reliability (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Stereo-Broadcasting Methods (AREA)
  • Networks Using Active Elements (AREA)
  • Battery Electrode And Active Subsutance (AREA)
  • Compositions Of Oxide Ceramics (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
  • Tires In General (AREA)
  • Executing Machine-Instructions (AREA)
  • Noise Elimination (AREA)
  • Road Paving Structures (AREA)
  • Building Environments (AREA)
  • Stereophonic System (AREA)
HK06102094A 1999-01-27 2006-02-17 Spectral band replication and high frequency reconstruction audio coding methods and apparatuses using adaptive noise-floor addition and noise substitution limiting HK1082093A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE9900256A SE9900256D0 (sv) 1999-01-27 1999-01-27 Metod och anordning för förbättring av effektivitet och ljudkvalitet hos ljudkodare
SE9903553A SE9903553D0 (sv) 1999-01-27 1999-10-01 Enhancing percepptual performance of SBR and related coding methods by adaptive noise addition (ANA) and noise substitution limiting (NSL)

Publications (1)

Publication Number Publication Date
HK1082093A1 true HK1082093A1 (en) 2006-05-26

Family

ID=26663489

Family Applications (6)

Application Number Title Priority Date Filing Date
HK03105686A HK1053534A1 (en) 1999-01-27 2003-08-08 Method and apparatus for enhancing source coding and decoding by adaptive noise-floor addition and noise substitution limiting.
HK04105232A HK1062349A1 (en) 1999-01-27 2004-07-16 Enhancing perceptual quality of sbr (spectral bandreplication) and hfr (high frequency reconstructi on) coding methods by adaptive noise-floor addition and noise substitution limiting
HK06102094A HK1082093A1 (en) 1999-01-27 2006-02-17 Spectral band replication and high frequency reconstruction audio coding methods and apparatuses using adaptive noise-floor addition and noise substitution limiting
HK06114275.1A HK1094077A1 (en) 1999-01-27 2006-12-29 Apparatus and method for enhancing source decoder
HK06114274.2A HK1093812A1 (en) 1999-01-27 2006-12-29 An apparatus for enhancing source decoder
HK10106768.5A HK1140572A1 (en) 1999-01-27 2010-07-13 Enhancing perceptual performance of sbr and related hfr coding methods by adaptive noise-floor addition and noise substitution limiting

Family Applications Before (2)

Application Number Title Priority Date Filing Date
HK03105686A HK1053534A1 (en) 1999-01-27 2003-08-08 Method and apparatus for enhancing source coding and decoding by adaptive noise-floor addition and noise substitution limiting.
HK04105232A HK1062349A1 (en) 1999-01-27 2004-07-16 Enhancing perceptual quality of sbr (spectral bandreplication) and hfr (high frequency reconstructi on) coding methods by adaptive noise-floor addition and noise substitution limiting

Family Applications After (3)

Application Number Title Priority Date Filing Date
HK06114275.1A HK1094077A1 (en) 1999-01-27 2006-12-29 Apparatus and method for enhancing source decoder
HK06114274.2A HK1093812A1 (en) 1999-01-27 2006-12-29 An apparatus for enhancing source decoder
HK10106768.5A HK1140572A1 (en) 1999-01-27 2010-07-13 Enhancing perceptual performance of sbr and related hfr coding methods by adaptive noise-floor addition and noise substitution limiting

Country Status (15)

Country Link
US (11) USRE43189E1 (xx)
EP (5) EP1157374B1 (xx)
JP (7) JP3603026B2 (xx)
CN (6) CN1838239B (xx)
AT (5) ATE395688T1 (xx)
AU (1) AU2585700A (xx)
BR (4) BRPI0009138B1 (xx)
DE (5) DE60038915D1 (xx)
DK (5) DK1914728T3 (xx)
ES (5) ES2254992T3 (xx)
HK (6) HK1053534A1 (xx)
PT (4) PT1157374E (xx)
RU (1) RU2226032C2 (xx)
SE (1) SE9903553D0 (xx)
WO (1) WO2000045379A2 (xx)

Families Citing this family (180)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE9903553D0 (sv) 1999-01-27 1999-10-01 Lars Liljeryd Enhancing percepptual performance of SBR and related coding methods by adaptive noise addition (ANA) and noise substitution limiting (NSL)
US7742927B2 (en) 2000-04-18 2010-06-22 France Telecom Spectral enhancing method and device
FR2807897B1 (fr) † 2000-04-18 2003-07-18 France Telecom Methode et dispositif d'enrichissement spectral
SE0001926D0 (sv) 2000-05-23 2000-05-23 Lars Liljeryd Improved spectral translation/folding in the subband domain
SE0004163D0 (sv) 2000-11-14 2000-11-14 Coding Technologies Sweden Ab Enhancing perceptual performance of high frequency reconstruction coding methods by adaptive filtering
SE0004818D0 (sv) 2000-12-22 2000-12-22 Coding Technologies Sweden Ab Enhancing source coding systems by adaptive transposition
ATE319162T1 (de) * 2001-01-19 2006-03-15 Koninkl Philips Electronics Nv Breitband-signalübertragungssystem
FR2821501B1 (fr) * 2001-02-23 2004-07-16 France Telecom Procede et dispositif de reconstruction spectrale d'un signal a spectre incomplet et systeme de codage/decodage associe
AUPR433901A0 (en) * 2001-04-10 2001-05-17 Lake Technology Limited High frequency signal construction method
SE0202159D0 (sv) 2001-07-10 2002-07-09 Coding Technologies Sweden Ab Efficientand scalable parametric stereo coding for low bitrate applications
US8605911B2 (en) 2001-07-10 2013-12-10 Dolby International Ab Efficient and scalable parametric stereo coding for low bitrate audio coding applications
DE60204039T2 (de) 2001-11-02 2006-03-02 Matsushita Electric Industrial Co., Ltd., Kadoma Vorrichtung zur kodierung und dekodierung von audiosignalen
JP4308229B2 (ja) * 2001-11-14 2009-08-05 パナソニック株式会社 符号化装置および復号化装置
CN100395817C (zh) * 2001-11-14 2008-06-18 松下电器产业株式会社 编码设备、解码设备和解码方法
ES2268112T3 (es) * 2001-11-14 2007-03-16 Matsushita Electric Industrial Co., Ltd. Codificacion y descodificacion de audio.
EP1451812B1 (en) * 2001-11-23 2006-06-21 Koninklijke Philips Electronics N.V. Audio signal bandwidth extension
US7469206B2 (en) 2001-11-29 2008-12-23 Coding Technologies Ab Methods for improving high frequency reconstruction
JP4317355B2 (ja) * 2001-11-30 2009-08-19 パナソニック株式会社 符号化装置、符号化方法、復号化装置、復号化方法および音響データ配信システム
US7240001B2 (en) 2001-12-14 2007-07-03 Microsoft Corporation Quality improvement techniques in an audio encoder
US6934677B2 (en) 2001-12-14 2005-08-23 Microsoft Corporation Quantization matrices based on critical band pattern information for digital audio wherein quantization bands differ from critical bands
US20030187663A1 (en) 2002-03-28 2003-10-02 Truman Michael Mead Broadband frequency translation for high frequency regeneration
JP4296752B2 (ja) 2002-05-07 2009-07-15 ソニー株式会社 符号化方法及び装置、復号方法及び装置、並びにプログラム
US7447631B2 (en) * 2002-06-17 2008-11-04 Dolby Laboratories Licensing Corporation Audio coding system using spectral hole filling
TWI288915B (en) * 2002-06-17 2007-10-21 Dolby Lab Licensing Corp Improved audio coding system using characteristics of a decoded signal to adapt synthesized spectral components
CN1328707C (zh) 2002-07-19 2007-07-25 日本电气株式会社 音频解码设备以及解码方法
US7454331B2 (en) 2002-08-30 2008-11-18 Dolby Laboratories Licensing Corporation Controlling loudness of speech in signals that contain speech and other types of audio material
US7502743B2 (en) 2002-09-04 2009-03-10 Microsoft Corporation Multi-channel audio encoding and decoding with multi-channel transform selection
SE0202770D0 (sv) 2002-09-18 2002-09-18 Coding Technologies Sweden Ab Method for reduction of aliasing introduces by spectral envelope adjustment in real-valued filterbanks
EP1543307B1 (en) * 2002-09-19 2006-02-22 Matsushita Electric Industrial Co., Ltd. Audio decoding apparatus and method
US7146316B2 (en) * 2002-10-17 2006-12-05 Clarity Technologies, Inc. Noise reduction in subbanded speech signals
EP1414273A1 (en) * 2002-10-22 2004-04-28 Koninklijke Philips Electronics N.V. Embedded data signaling
US20040138876A1 (en) * 2003-01-10 2004-07-15 Nokia Corporation Method and apparatus for artificial bandwidth expansion in speech processing
US7318027B2 (en) 2003-02-06 2008-01-08 Dolby Laboratories Licensing Corporation Conversion of synthesized spectral components for encoding and low-complexity transcoding
US7318035B2 (en) * 2003-05-08 2008-01-08 Dolby Laboratories Licensing Corporation Audio coding systems and methods using spectral component coupling and spectral component regeneration
JP2005024756A (ja) * 2003-06-30 2005-01-27 Toshiba Corp 復号処理回路および移動端末装置
US7548852B2 (en) * 2003-06-30 2009-06-16 Koninklijke Philips Electronics N.V. Quality of decoded audio by adding noise
WO2005027095A1 (ja) * 2003-09-16 2005-03-24 Matsushita Electric Industrial Co., Ltd. 符号化装置および復号化装置
EP2221808B1 (en) * 2003-10-23 2012-07-11 Panasonic Corporation Spectrum coding apparatus, spectrum decoding apparatus, acoustic signal transmission apparatus, acoustic signal reception apparatus and methods thereof
KR101106026B1 (ko) * 2003-10-30 2012-01-17 돌비 인터네셔널 에이비 오디오 신호 인코딩 또는 디코딩
GB2407952B (en) * 2003-11-07 2006-11-29 Psytechnics Ltd Quality assessment tool
JP2007514968A (ja) * 2003-12-01 2007-06-07 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 音声信号強化方法及び装置、目的信号検出器、音響システム
FR2865310A1 (fr) * 2004-01-20 2005-07-22 France Telecom Procede de restauration de partiels d'un signal sonore
US7460990B2 (en) * 2004-01-23 2008-12-02 Microsoft Corporation Efficient coding of digital media spectral data using wide-sense perceptual similarity
US6980933B2 (en) * 2004-01-27 2005-12-27 Dolby Laboratories Licensing Corporation Coding techniques using estimated spectral magnitude and phase derived from MDCT coefficients
JP4741476B2 (ja) 2004-04-23 2011-08-03 パナソニック株式会社 符号化装置
WO2005111568A1 (ja) * 2004-05-14 2005-11-24 Matsushita Electric Industrial Co., Ltd. 符号化装置、復号化装置、およびこれらの方法
CN102280109B (zh) * 2004-05-19 2016-04-27 松下电器（美国）知识产权公司 编码装置、解码装置及它们的方法
GB2416285A (en) 2004-07-14 2006-01-18 British Broadcasting Corp Transmission of a data signal in an audio signal
SE0402651D0 (sv) * 2004-11-02 2004-11-02 Coding Tech Ab Advanced methods for interpolation and parameter signalling
US8082156B2 (en) * 2005-01-11 2011-12-20 Nec Corporation Audio encoding device, audio encoding method, and audio encoding program for encoding a wide-band audio signal
CN100593197C (zh) * 2005-02-02 2010-03-03 富士通株式会社 信号处理方法和装置
ATE421845T1 (de) * 2005-04-15 2009-02-15 Dolby Sweden Ab Zeitliche hüllkurvenformgebung von entkorrelierten signalen
US7983922B2 (en) * 2005-04-15 2011-07-19 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Apparatus and method for generating multi-channel synthesizer control signal and apparatus and method for multi-channel synthesizing
US9560349B2 (en) 2005-04-19 2017-01-31 Koninklijke Philips N.V. Embedded data signaling
DK1742509T3 (da) * 2005-07-08 2013-11-04 Oticon As Et system og en fremgangsmåde til eliminering af feedback og støj i et høreapparat
JP4899359B2 (ja) 2005-07-11 2012-03-21 ソニー株式会社 信号符号化装置及び方法、信号復号装置及び方法、並びにプログラム及び記録媒体
JP4701392B2 (ja) * 2005-07-20 2011-06-15 国立大学法人九州工業大学 高域信号補間方法及び高域信号補間装置
JP4627548B2 (ja) * 2005-09-08 2011-02-09 パイオニア株式会社 帯域拡張装置、帯域拡張方法および帯域拡張プログラム
US8396717B2 (en) * 2005-09-30 2013-03-12 Panasonic Corporation Speech encoding apparatus and speech encoding method
CN102623014A (zh) 2005-10-14 2012-08-01 松下电器产业株式会社 变换编码装置和变换编码方法
US7536299B2 (en) * 2005-12-19 2009-05-19 Dolby Laboratories Licensing Corporation Correlating and decorrelating transforms for multiple description coding systems
JP4863713B2 (ja) * 2005-12-29 2012-01-25 富士通株式会社 雑音抑制装置、雑音抑制方法、及びコンピュータプログラム
US7953604B2 (en) * 2006-01-20 2011-05-31 Microsoft Corporation Shape and scale parameters for extended-band frequency coding
US7831434B2 (en) * 2006-01-20 2010-11-09 Microsoft Corporation Complex-transform channel coding with extended-band frequency coding
US8190425B2 (en) 2006-01-20 2012-05-29 Microsoft Corporation Complex cross-correlation parameters for multi-channel audio
US20070270987A1 (en) * 2006-05-18 2007-11-22 Sharp Kabushiki Kaisha Signal processing method, signal processing apparatus and recording medium
US7930173B2 (en) 2006-06-19 2011-04-19 Sharp Kabushiki Kaisha Signal processing method, signal processing apparatus and recording medium
US9159333B2 (en) 2006-06-21 2015-10-13 Samsung Electronics Co., Ltd. Method and apparatus for adaptively encoding and decoding high frequency band
US20080109215A1 (en) * 2006-06-26 2008-05-08 Chi-Min Liu High frequency reconstruction by linear extrapolation
JP4918841B2 (ja) * 2006-10-23 2012-04-18 富士通株式会社 符号化システム
WO2008053970A1 (fr) * 2006-11-02 2008-05-08 Panasonic Corporation Dispositif de codage de la voix, dispositif de décodage de la voix et leurs procédés
GB2443911A (en) * 2006-11-06 2008-05-21 Matsushita Electric Ind Co Ltd Reducing power consumption in digital broadcast receivers
JP4967618B2 (ja) * 2006-11-24 2012-07-04 富士通株式会社 復号化装置および復号化方法
GB0703275D0 (en) * 2007-02-20 2007-03-28 Skype Ltd Method of estimating noise levels in a communication system
GB0704622D0 (en) * 2007-03-09 2007-04-18 Skype Ltd Speech coding system and method
AU2012261547B2 (en) * 2007-03-09 2014-04-17 Skype Speech coding system and method
KR101411900B1 (ko) * 2007-05-08 2014-06-26 삼성전자주식회사 오디오 신호의 부호화 및 복호화 방법 및 장치
US8046214B2 (en) * 2007-06-22 2011-10-25 Microsoft Corporation Low complexity decoder for complex transform coding of multi-channel sound
US7885819B2 (en) 2007-06-29 2011-02-08 Microsoft Corporation Bitstream syntax for multi-process audio decoding
MX2010001394A (es) 2007-08-27 2010-03-10 Ericsson Telefon Ab L M Frecuencia de transicion adaptiva entre llenado de ruido y extension de anchura de banda.
US8554349B2 (en) * 2007-10-23 2013-10-08 Clarion Co., Ltd. High-frequency interpolation device and high-frequency interpolation method
US8249883B2 (en) * 2007-10-26 2012-08-21 Microsoft Corporation Channel extension coding for multi-channel source
KR101373004B1 (ko) 2007-10-30 2014-03-26 삼성전자주식회사 고주파수 신호 부호화 및 복호화 장치 및 방법
US9177569B2 (en) 2007-10-30 2015-11-03 Samsung Electronics Co., Ltd. Apparatus, medium and method to encode and decode high frequency signal
US8688441B2 (en) * 2007-11-29 2014-04-01 Motorola Mobility Llc Method and apparatus to facilitate provision and use of an energy value to determine a spectral envelope shape for out-of-signal bandwidth content
US20110137646A1 (en) * 2007-12-20 2011-06-09 Telefonaktiebolaget L M Ericsson Noise Suppression Method and Apparatus
CN101904097B (zh) * 2007-12-20 2015-05-13 艾利森电话股份有限公司 噪声抑制方法和设备
EP2077551B1 (en) * 2008-01-04 2011-03-02 Dolby Sweden AB Audio encoder and decoder
US8433582B2 (en) * 2008-02-01 2013-04-30 Motorola Mobility Llc Method and apparatus for estimating high-band energy in a bandwidth extension system
US20090201983A1 (en) * 2008-02-07 2009-08-13 Motorola, Inc. Method and apparatus for estimating high-band energy in a bandwidth extension system
JP5302980B2 (ja) * 2008-03-04 2013-10-02 フラウンホーファー−ゲゼルシャフト・ツール・フェルデルング・デル・アンゲヴァンテン・フォルシュング・アインゲトラーゲネル・フェライン 複数の入力データストリームのミキシングのための装置
MX2010009932A (es) 2008-03-10 2010-11-30 Fraunhofer Ges Forschung Metodo y dispositivo para manipular una señal de audio que tiene un evento transitorio.
CN101582263B (zh) * 2008-05-12 2012-02-01 华为技术有限公司 语音解码中噪音增强后处理的方法和装置
US9575715B2 (en) * 2008-05-16 2017-02-21 Adobe Systems Incorporated Leveling audio signals
AU2013257391B2 (en) * 2008-07-11 2015-07-09 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. An apparatus and a method for generating bandwidth extension output data
MY163454A (en) * 2008-07-11 2017-09-15 Frauenhofer-Gesellschaft Zur Apparatus or method for generating a bandwidth extended signal
USRE47180E1 (en) 2008-07-11 2018-12-25 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Apparatus and method for generating a bandwidth extended signal
ES2396927T3 (es) 2008-07-11 2013-03-01 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Aparato y procedimiento para decodificar una señal de audio codificada
ES2379761T3 (es) * 2008-07-11 2012-05-03 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Proporcinar una señal de activación de distorsión de tiempo y codificar una señal de audio con la misma
MX2011000367A (es) * 2008-07-11 2011-03-02 Fraunhofer Ges Forschung Un aparato y un metodo para calcular una cantidad de envolventes espectrales.
US8880410B2 (en) 2008-07-11 2014-11-04 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Apparatus and method for generating a bandwidth extended signal
US8463412B2 (en) * 2008-08-21 2013-06-11 Motorola Mobility Llc Method and apparatus to facilitate determining signal bounding frequencies
WO2010028292A1 (en) * 2008-09-06 2010-03-11 Huawei Technologies Co., Ltd. Adaptive frequency prediction
WO2010028297A1 (en) 2008-09-06 2010-03-11 GH Innovation, Inc. Selective bandwidth extension
WO2010028299A1 (en) * 2008-09-06 2010-03-11 Huawei Technologies Co., Ltd. Noise-feedback for spectral envelope quantization
WO2010028301A1 (en) * 2008-09-06 2010-03-11 GH Innovation, Inc. Spectrum harmonic/noise sharpness control
WO2010031003A1 (en) 2008-09-15 2010-03-18 Huawei Technologies Co., Ltd. Adding second enhancement layer to celp based core layer
US8577673B2 (en) * 2008-09-15 2013-11-05 Huawei Technologies Co., Ltd. CELP post-processing for music signals
BR122019023704B1 (pt) 2009-01-16 2020-05-05 Dolby Int Ab sistema para gerar um componente de frequência alta de um sinal de áudio e método para realizar reconstrução de frequência alta de um componente de frequência alta
US8463599B2 (en) * 2009-02-04 2013-06-11 Motorola Mobility Llc Bandwidth extension method and apparatus for a modified discrete cosine transform audio coder
EP2402940B9 (en) * 2009-02-26 2019-10-30 Panasonic Intellectual Property Corporation of America Encoder, decoder, and method therefor
CN105225667B (zh) 2009-03-17 2019-04-05 杜比国际公司 编码器***、解码器***、编码方法和解码方法
RU2452044C1 (ru) 2009-04-02 2012-05-27 Фраунхофер-Гезелльшафт цур Фёрдерунг дер ангевандтен Форшунг Е.Ф. Устройство, способ и носитель с программным кодом для генерирования представления сигнала с расширенным диапазоном частот на основе представления входного сигнала с использованием сочетания гармонического расширения диапазона частот и негармонического расширения диапазона частот
EP2239732A1 (en) 2009-04-09 2010-10-13 Fraunhofer-Gesellschaft zur Förderung der Angewandten Forschung e.V. Apparatus and method for generating a synthesis audio signal and for encoding an audio signal
CO6440537A2 (es) * 2009-04-09 2012-05-15 Fraunhofer Ges Forschung Aparato y metodo para generar una señal de audio de sintesis y para codificar una señal de audio
TWI643187B (zh) 2009-05-27 2018-12-01 瑞典商杜比國際公司 從訊號的低頻成份產生該訊號之高頻成份的系統與方法，及其機上盒、電腦程式產品、軟體程式及儲存媒體
US11657788B2 (en) 2009-05-27 2023-05-23 Dolby International Ab Efficient combined harmonic transposition
WO2011001578A1 (ja) * 2009-06-29 2011-01-06 パナソニック株式会社 通信装置
CN101638861B (zh) * 2009-08-16 2012-07-18 岳阳林纸股份有限公司 一种工业淋膜原纸的制造方法
JP5754899B2 (ja) 2009-10-07 2015-07-29 ソニー株式会社 復号装置および方法、並びにプログラム
CN102754159B (zh) 2009-10-19 2016-08-24 杜比国际公司 指示音频对象的部分的元数据时间标记信息
JP5414454B2 (ja) 2009-10-23 2014-02-12 日立オートモティブシステムズ株式会社 車両運動制御装置
CN104252862B (zh) 2010-01-15 2018-12-18 Lg电子株式会社 处理音频信号的方法和装置
EP2362375A1 (en) * 2010-02-26 2011-08-31 Fraunhofer-Gesellschaft zur Förderung der Angewandten Forschung e.V. Apparatus and method for modifying an audio signal using harmonic locking
JP5850216B2 (ja) 2010-04-13 2016-02-03 ソニー株式会社 信号処理装置および方法、符号化装置および方法、復号装置および方法、並びにプログラム
JP5609737B2 (ja) 2010-04-13 2014-10-22 ソニー株式会社 信号処理装置および方法、符号化装置および方法、復号装置および方法、並びにプログラム
CN103069484B (zh) * 2010-04-14 2014-10-08 华为技术有限公司 时/频二维后处理
JP5589631B2 (ja) 2010-07-15 2014-09-17 富士通株式会社 音声処理装置、音声処理方法および電話装置
US8560330B2 (en) * 2010-07-19 2013-10-15 Futurewei Technologies, Inc. Energy envelope perceptual correction for high band coding
BR112012024360B1 (pt) * 2010-07-19 2020-11-03 Dolby International Ab sistema configurado para gerar uma pluralidade de sinais de áudio de sub-banda de alta frequência, decodificador de áudio, codificador, método para gerar uma pluralidade de sinais de sub-banda de alta frequência, método para decodificar um fluxo de bits, método para gerar dados de controle a partir de um sinal de áudio e meio de armazenamento
US12002476B2 (en) 2010-07-19 2024-06-04 Dolby International Ab Processing of audio signals during high frequency reconstruction
US9047875B2 (en) * 2010-07-19 2015-06-02 Futurewei Technologies, Inc. Spectrum flatness control for bandwidth extension
JP6075743B2 (ja) 2010-08-03 2017-02-08 ソニー株式会社 信号処理装置および方法、並びにプログラム
JP5707842B2 (ja) * 2010-10-15 2015-04-30 ソニー株式会社 符号化装置および方法、復号装置および方法、並びにプログラム
JP2011059714A (ja) * 2010-12-06 2011-03-24 Sony Corp 信号符号化装置及び方法、信号復号装置及び方法、並びにプログラム及び記録媒体
EP2466580A1 (en) * 2010-12-14 2012-06-20 Fraunhofer-Gesellschaft zur Förderung der Angewandten Forschung e.V. Encoder and method for predictively encoding, decoder and method for decoding, system and method for predictively encoding and decoding and predictively encoded information signal
US8706509B2 (en) 2011-04-15 2014-04-22 Telefonaktiebolaget L M Ericsson (Publ) Method and a decoder for attenuation of signal regions reconstructed with low accuracy
JP5569476B2 (ja) * 2011-07-11 2014-08-13 ソニー株式会社 信号符号化装置及び方法、信号復号装置及び方法、並びにプログラム及び記録媒体
US8620646B2 (en) * 2011-08-08 2013-12-31 The Intellisis Corporation System and method for tracking sound pitch across an audio signal using harmonic envelope
JP2013073230A (ja) * 2011-09-29 2013-04-22 Renesas Electronics Corp オーディオ符号化装置
CN103123787B (zh) * 2011-11-21 2015-11-18 金峰 一种移动终端与媒体同步与交互的方法
EP3288033B1 (en) * 2012-02-23 2019-04-10 Dolby International AB Methods and systems for efficient recovery of high frequency audio content
TWI591620B (zh) 2012-03-21 2017-07-11 三星電子股份有限公司 產生高頻雜訊的方法
PL2831875T3 (pl) * 2012-03-29 2016-05-31 Ericsson Telefon Ab L M Rozszerzenie pasma harmonicznego sygnału audio
EP2682941A1 (de) * 2012-07-02 2014-01-08 Technische Universität Ilmenau Vorrichtung, Verfahren und Computerprogramm für frei wählbare Frequenzverschiebungen in der Subband-Domäne
US20140081627A1 (en) * 2012-09-14 2014-03-20 Quickfilter Technologies, Llc Method for optimization of multiple psychoacoustic effects
RU2660605C2 (ru) * 2013-01-29 2018-07-06 Фраунхофер-Гезелльшафт Цур Фердерунг Дер Ангевандтен Форшунг Е.Ф. Концепция заполнения шумом
US9741350B2 (en) * 2013-02-08 2017-08-22 Qualcomm Incorporated Systems and methods of performing gain control
EP4300488A3 (en) 2013-04-05 2024-02-28 Dolby International AB Stereo audio encoder and decoder
KR101632238B1 (ko) 2013-04-05 2016-06-21 돌비 인터네셔널 에이비 인터리브된 파형 코딩을 위한 오디오 인코더 및 디코더
MY170179A (en) * 2013-06-10 2019-07-09 Fraunhofer Ges Forschung Apparatus and method for audio signal envelope encoding, processing and decoding by splitting the audio signal envelope employing distribution quantization and coding
AU2014280258B9 (en) 2013-06-10 2017-04-20 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Apparatus and method for audio signal envelope encoding, processing and decoding by modelling a cumulative sum representation employing distribution quantization and coding
EP2830055A1 (en) * 2013-07-22 2015-01-28 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Context-based entropy coding of sample values of a spectral envelope
EP2830064A1 (en) 2013-07-22 2015-01-28 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Apparatus and method for decoding and encoding an audio signal using adaptive spectral tile selection
TWI557726B (zh) * 2013-08-29 2016-11-11 杜比國際公司 用於決定音頻信號的高頻帶信號的主比例因子頻帶表之系統和方法
US9666202B2 (en) * 2013-09-10 2017-05-30 Huawei Technologies Co., Ltd. Adaptive bandwidth extension and apparatus for the same
CN105531762B (zh) 2013-09-19 2019-10-01 索尼公司 编码装置和方法、解码装置和方法以及程序
CA3162763A1 (en) 2013-12-27 2015-07-02 Sony Corporation Decoding apparatus and method, and program
CN111710342B (zh) 2014-03-31 2024-04-16 弗朗霍弗应用研究促进协会 编码装置、解码装置、编码方法、解码方法及程序
ES2843300T3 (es) * 2014-05-01 2021-07-16 Nippon Telegraph & Telephone Codificación de una señal de sonido
US9984699B2 (en) * 2014-06-26 2018-05-29 Qualcomm Incorporated High-band signal coding using mismatched frequency ranges
EP2980792A1 (en) * 2014-07-28 2016-02-03 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Apparatus and method for generating an enhanced signal using independent noise-filling
EP2980801A1 (en) 2014-07-28 2016-02-03 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Method for estimating noise in an audio signal, noise estimator, audio encoder, audio decoder, and system for transmitting audio signals
EP3067889A1 (en) * 2015-03-09 2016-09-14 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Method and apparatus for signal-adaptive transform kernel switching in audio coding
CA3018039C (en) * 2016-03-24 2023-08-29 Harman International Industries, Incorporated Signal quality-based enhancement and compensation of compressed audio signals
SG11201808684TA (en) 2016-04-12 2018-11-29 Fraunhofer Ges Forschung Audio encoder for encoding an audio signal, method for encoding an audio signal and computer program under consideration of a detected peak spectral region in an upper frequency band
CN107545900B (zh) * 2017-08-16 2020-12-01 广州广晟数码技术有限公司 带宽扩展编码和解码中高频弦信号生成的方法和装置
US10537446B2 (en) 2017-09-20 2020-01-21 Depuy Ireland Unlimited Company Method and instruments for assembling an orthopaedic prosthesis
US10537341B2 (en) 2017-09-20 2020-01-21 Depuy Ireland Unlimited Company Orthopaedic system and method for assembling prosthetic components
US10543001B2 (en) 2017-09-20 2020-01-28 Depuy Ireland Unlimited Company Method and instruments for assembling a femoral orthopaedic prosthesis
WO2019091573A1 (en) * 2017-11-10 2019-05-16 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Apparatus and method for encoding and decoding an audio signal using downsampling or interpolation of scale parameters
EP3483879A1 (en) 2017-11-10 2019-05-15 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Analysis/synthesis windowing function for modulated lapped transformation
TWI809289B (zh) 2018-01-26 2023-07-21 瑞典商都比國際公司 用於執行一音訊信號之高頻重建之方法、音訊處理單元及非暫時性電腦可讀媒體
WO2019210068A1 (en) 2018-04-25 2019-10-31 Dolby Laboratories Licensing Corporation Integration of high frequency reconstruction techniques with reduced post-processing delay
BR112020021832A2 (pt) * 2018-04-25 2021-02-23 Dolby International Ab integração de técnicas de reconstrução de alta frequência
CN110633686B (zh) * 2019-09-20 2023-03-24 安徽智寰科技有限公司 一种基于振动信号数据驱动的设备转速识别方法
US11817114B2 (en) 2019-12-09 2023-11-14 Dolby Laboratories Licensing Corporation Content and environmentally aware environmental noise compensation
CN111257933B (zh) * 2019-12-26 2021-01-05 中国地质大学（武汉） 基于低频阴影现象的油气藏预测新方法
CN113630120A (zh) * 2021-03-31 2021-11-09 中山大学 一种结合1比特模数转换器的零时延通信方法及其应用
KR20220158395A (ko) 2021-05-24 2022-12-01 한국전자통신연구원 오디오 신호의 부호화 및 복호화 방법과 그 방법을 수행하는 부호화기 및 복호화기

Family Cites Families (100)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4166924A (en) 1977-05-12 1979-09-04 Bell Telephone Laboratories, Incorporated Removing reverberative echo components in speech signals
FR2412987A1 (fr) 1977-12-23 1979-07-20 Ibm France Procede de compression de donnees relatives au signal vocal et dispositif mettant en oeuvre ledit procede
JPS55102982A (en) * 1979-01-31 1980-08-06 Sony Corp Synchronizing detection circuit
US4330689A (en) 1980-01-28 1982-05-18 The United States Of America As Represented By The Secretary Of The Navy Multirate digital voice communication processor
DE3171311D1 (en) 1981-07-28 1985-08-14 Ibm Voice coding method and arrangment for carrying out said method
US4667340A (en) * 1983-04-13 1987-05-19 Texas Instruments Incorporated Voice messaging system with pitch-congruent baseband coding
US4672670A (en) 1983-07-26 1987-06-09 Advanced Micro Devices, Inc. Apparatus and methods for coding, decoding, analyzing and synthesizing a signal
US4538297A (en) * 1983-08-08 1985-08-27 Waller Jr James Aurally sensitized flat frequency response noise reduction compansion system
US4700362A (en) 1983-10-07 1987-10-13 Dolby Laboratories Licensing Corporation A-D encoder and D-A decoder system
IL73030A (en) 1984-09-19 1989-07-31 Yaacov Kaufman Joint and method utilising its assembly
US4790016A (en) 1985-11-14 1988-12-06 Gte Laboratories Incorporated Adaptive method and apparatus for coding speech
FR2577084B1 (fr) 1985-02-01 1987-03-20 Trt Telecom Radio Electr Systeme de bancs de filtres d'analyse et de synthese d'un signal
CA1220282A (en) 1985-04-03 1987-04-07 Northern Telecom Limited Transmission of wideband speech signals
DE3683767D1 (de) 1986-04-30 1992-03-12 Ibm Sprachkodierungsverfahren und einrichtung zur ausfuehrung dieses verfahrens.
US4776014A (en) 1986-09-02 1988-10-04 General Electric Company Method for pitch-aligned high-frequency regeneration in RELP vocoders
US4771465A (en) 1986-09-11 1988-09-13 American Telephone And Telegraph Company, At&T Bell Laboratories Digital speech sinusoidal vocoder with transmission of only subset of harmonics
DE3639753A1 (de) * 1986-11-21 1988-06-01 Inst Rundfunktechnik Gmbh Verfahren zum uebertragen digitalisierter tonsignale
US5054072A (en) 1987-04-02 1991-10-01 Massachusetts Institute Of Technology Coding of acoustic waveforms
US5285520A (en) 1988-03-02 1994-02-08 Kokusai Denshin Denwa Kabushiki Kaisha Predictive coding apparatus
US5127054A (en) * 1988-04-29 1992-06-30 Motorola, Inc. Speech quality improvement for voice coders and synthesizers
US5226000A (en) * 1988-11-08 1993-07-06 Wadia Digital Corporation Method and system for time domain interpolation of digital audio signals
EP0392126B1 (en) 1989-04-11 1994-07-20 International Business Machines Corporation Fast pitch tracking process for LTP-based speech coders
US5261027A (en) 1989-06-28 1993-11-09 Fujitsu Limited Code excited linear prediction speech coding system
US4974187A (en) 1989-08-02 1990-11-27 Aware, Inc. Modular digital signal processing system
US5040217A (en) 1989-10-18 1991-08-13 At&T Bell Laboratories Perceptual coding of audio signals
US4969040A (en) 1989-10-26 1990-11-06 Bell Communications Research, Inc. Apparatus and method for differential sub-band coding of video signals
US5293449A (en) 1990-11-23 1994-03-08 Comsat Corporation Analysis-by-synthesis 2,4 kbps linear predictive speech codec
JP3158458B2 (ja) 1991-01-31 2001-04-23 日本電気株式会社 階層表現された信号の符号化方式
GB9104186D0 (en) 1991-02-28 1991-04-17 British Aerospace Apparatus for and method of digital signal processing
US5235420A (en) 1991-03-22 1993-08-10 Bell Communications Research, Inc. Multilayer universal video coder
GB2257606B (en) 1991-06-28 1995-01-18 Sony Corp Recording and/or reproducing apparatuses and signal processing methods for compressed data
JPH05191885A (ja) 1992-01-10 1993-07-30 Clarion Co Ltd 音響信号イコライザ回路
US5765127A (en) 1992-03-18 1998-06-09 Sony Corp High efficiency encoding method
US5351338A (en) 1992-07-06 1994-09-27 Telefonaktiebolaget L M Ericsson Time variable spectral analysis based on interpolation for speech coding
IT1257065B (it) 1992-07-31 1996-01-05 Sip Codificatore a basso ritardo per segnali audio, utilizzante tecniche di analisi per sintesi.
JPH0685607A (ja) * 1992-08-31 1994-03-25 Alpine Electron Inc 高域成分復元装置
JP2779886B2 (ja) 1992-10-05 1998-07-23 日本電信電話株式会社 広帯域音声信号復元方法
JP3191457B2 (ja) 1992-10-31 2001-07-23 ソニー株式会社 高能率符号化装置、ノイズスペクトル変更装置及び方法
CA2106440C (en) 1992-11-30 1997-11-18 Jelena Kovacevic Method and apparatus for reducing correlated errors in subband coding systems with quantizers
JP3496230B2 (ja) 1993-03-16 2004-02-09 パイオニア株式会社 音場制御システム
US5581653A (en) 1993-08-31 1996-12-03 Dolby Laboratories Licensing Corporation Low bit-rate high-resolution spectral envelope coding for audio encoder and decoder
JPH07160299A (ja) 1993-12-06 1995-06-23 Hitachi Denshi Ltd 音声信号帯域圧縮伸張装置並びに音声信号の帯域圧縮伝送方式及び再生方式
JP2616549B2 (ja) 1993-12-10 1997-06-04 日本電気株式会社 音声復号装置
CA2118880A1 (en) * 1994-03-11 1995-09-12 Kannan Ramchandran Jpeg/mpeg decoder-compatible optimized thresholding for image and video signal compression
US5684920A (en) 1994-03-17 1997-11-04 Nippon Telegraph And Telephone Acoustic signal transform coding method and decoding method having a high efficiency envelope flattening method therein
US5787387A (en) 1994-07-11 1998-07-28 Voxware, Inc. Harmonic adaptive speech coding method and system
ATE284121T1 (de) * 1994-10-06 2004-12-15 Fidelix Y K Verfahren zur wiedergabe von audiosignalen und vorrichtung dafür
JP3483958B2 (ja) 1994-10-28 2004-01-06 三菱電機株式会社 広帯域音声復元装置及び広帯域音声復元方法及び音声伝送システム及び音声伝送方法
FR2729024A1 (fr) 1994-12-30 1996-07-05 Matra Communication Annuleur d'echo acoustique avec filtrage en sous-bandes
US5701390A (en) 1995-02-22 1997-12-23 Digital Voice Systems, Inc. Synthesis of MBE-based coded speech using regenerated phase information
JP2798003B2 (ja) 1995-05-09 1998-09-17 松下電器産業株式会社 音声帯域拡大装置および音声帯域拡大方法
JP3189614B2 (ja) * 1995-03-13 2001-07-16 松下電器産業株式会社 音声帯域拡大装置
JP2956548B2 (ja) 1995-10-05 1999-10-04 松下電器産業株式会社 音声帯域拡大装置
US5617509A (en) * 1995-03-29 1997-04-01 Motorola, Inc. Method, apparatus, and radio optimizing Hidden Markov Model speech recognition
JP3334419B2 (ja) * 1995-04-20 2002-10-15 ソニー株式会社 ノイズ低減方法及びノイズ低減装置
US5915235A (en) 1995-04-28 1999-06-22 Dejaco; Andrew P. Adaptive equalizer preprocessor for mobile telephone speech coder to modify nonideal frequency response of acoustic transducer
US5664055A (en) * 1995-06-07 1997-09-02 Lucent Technologies Inc. CS-ACELP speech compression system with adaptive pitch prediction filter gain based on a measure of periodicity
US5692050A (en) 1995-06-15 1997-11-25 Binaura Corporation Method and apparatus for spatially enhancing stereo and monophonic signals
EP0756267A1 (en) * 1995-07-24 1997-01-29 International Business Machines Corporation Method and system for silence removal in voice communication
JPH0946233A (ja) 1995-07-31 1997-02-14 Kokusai Electric Co Ltd 音声符号化方法とその装置、音声復号方法とその装置
JPH0955778A (ja) 1995-08-15 1997-02-25 Fujitsu Ltd 音声信号の広帯域化装置
JP3301473B2 (ja) 1995-09-27 2002-07-15 日本電信電話株式会社 広帯域音声信号復元方法
US5867819A (en) 1995-09-29 1999-02-02 Nippon Steel Corporation Audio decoder
JP3283413B2 (ja) 1995-11-30 2002-05-20 株式会社日立製作所 符号化復号方法、符号化装置および復号装置
US5956674A (en) * 1995-12-01 1999-09-21 Digital Theater Systems, Inc. Multi-channel predictive subband audio coder using psychoacoustic adaptive bit allocation in frequency, time and over the multiple channels
US5687191A (en) 1995-12-06 1997-11-11 Solana Technology Development Corporation Post-compression hidden data transport
US5781888A (en) 1996-01-16 1998-07-14 Lucent Technologies Inc. Perceptual noise shaping in the time domain via LPC prediction in the frequency domain
EP0880235A1 (en) * 1996-02-08 1998-11-25 Matsushita Electric Industrial Co., Ltd. Wide band audio signal encoder, wide band audio signal decoder, wide band audio signal encoder/decoder and wide band audio signal recording medium
JP3304739B2 (ja) 1996-02-08 2002-07-22 松下電器産業株式会社 ロスレス符号装置とロスレス記録媒体とロスレス復号装置とロスレス符号復号装置
US5852806A (en) * 1996-03-19 1998-12-22 Lucent Technologies Inc. Switched filterbank for use in audio signal coding
US5822370A (en) 1996-04-16 1998-10-13 Aura Systems, Inc. Compression/decompression for preservation of high fidelity speech quality at low bandwidth
US5848164A (en) 1996-04-30 1998-12-08 The Board Of Trustees Of The Leland Stanford Junior University System and method for effects processing on audio subband data
DE19617476A1 (de) * 1996-05-02 1997-11-06 Francotyp Postalia Gmbh Verfahren und Anordnung zur Datenverarbeitung in einem Postverarbeitungssystem mit einer Frankiermaschine
US5974387A (en) 1996-06-19 1999-10-26 Yamaha Corporation Audio recompression from higher rates for karaoke, video games, and other applications
JP3246715B2 (ja) 1996-07-01 2002-01-15 松下電器産業株式会社 オーディオ信号圧縮方法，およびオーディオ信号圧縮装置
CA2184541A1 (en) 1996-08-30 1998-03-01 Tet Hin Yeap Method and apparatus for wavelet modulation of signals for transmission and/or storage
US5960389A (en) * 1996-11-15 1999-09-28 Nokia Mobile Phones Limited Methods for generating comfort noise during discontinuous transmission
US5875122A (en) 1996-12-17 1999-02-23 Intel Corporation Integrated systolic architecture for decomposition and reconstruction of signals using wavelet transforms
CN1187070A (zh) * 1996-12-31 1998-07-08 大宇电子株式会社 使用多个处理单元的中值滤波方法及装置
US5812927A (en) * 1997-02-10 1998-09-22 Lsi Logic Corporation System and method for correction of I/Q angular error in a satellite receiver
CN1190773A (zh) * 1997-02-13 1998-08-19 合泰半导体股份有限公司 语音编码的波形增益估测方法
JPH10276095A (ja) 1997-03-28 1998-10-13 Toshiba Corp 符号化器及び復号化器
SE512719C2 (sv) 1997-06-10 2000-05-02 Lars Gustaf Liljeryd En metod och anordning för reduktion av dataflöde baserad på harmonisk bandbreddsexpansion
GB9714001D0 (en) * 1997-07-02 1997-09-10 Simoco Europ Limited Method and apparatus for speech enhancement in a speech communication system
US6144937A (en) 1997-07-23 2000-11-07 Texas Instruments Incorporated Noise suppression of speech by signal processing including applying a transform to time domain input sequences of digital signals representing audio information
US6104994A (en) * 1998-01-13 2000-08-15 Conexant Systems, Inc. Method for speech coding under background noise conditions
FI980132A (fi) * 1998-01-21 1999-07-22 Nokia Mobile Phones Ltd Adaptoituva jälkisuodatin
US6850883B1 (en) * 1998-02-09 2005-02-01 Nokia Networks Oy Decoding method, speech coding processing unit and a network element
KR100474826B1 (ko) 1998-05-09 2005-05-16 삼성전자주식회사 음성부호화기에서의주파수이동법을이용한다중밴드의유성화도결정방법및그장치
TW376611B (en) * 1998-05-26 1999-12-11 Koninkl Philips Electronics Nv Transmission system with improved speech encoder
US5990738A (en) * 1998-06-19 1999-11-23 Datum Telegraphic Inc. Compensation system and methods for a linear power amplifier
US6385573B1 (en) * 1998-08-24 2002-05-07 Conexant Systems, Inc. Adaptive tilt compensation for synthesized speech residual
GB2344036B (en) 1998-11-23 2004-01-21 Mitel Corp Single-sided subband filters
SE9903553D0 (sv) * 1999-01-27 1999-10-01 Lars Liljeryd Enhancing percepptual performance of SBR and related coding methods by adaptive noise addition (ANA) and noise substitution limiting (NSL)
US6226616B1 (en) * 1999-06-21 2001-05-01 Digital Theater Systems, Inc. Sound quality of established low bit-rate audio coding systems without loss of decoder compatibility
US6324505B1 (en) * 1999-07-19 2001-11-27 Qualcomm Incorporated Amplitude quantization scheme for low-bit-rate speech coders
JP2003505967A (ja) 1999-07-27 2003-02-12 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 フィルタリング装置
US7742927B2 (en) 2000-04-18 2010-06-22 France Telecom Spectral enhancing method and device
EP1211636A1 (en) 2000-11-29 2002-06-05 STMicroelectronics S.r.l. Filtering device and method for reducing noise in electrical signals, in particular acoustic signals and images
SE0004818D0 (sv) * 2000-12-22 2000-12-22 Coding Technologies Sweden Ab Enhancing source coding systems by adaptive transposition

Also Published As

Publication number Publication date
US20090319259A1 (en) 2009-12-24
PT1157374E (pt) 2004-12-31
ES2334403T3 (es) 2010-03-09
USRE43189E1 (en) 2012-02-14
JP4377302B2 (ja) 2009-12-02
ATE449406T1 (de) 2009-12-15
JP4852123B2 (ja) 2012-01-11
JP2006201802A (ja) 2006-08-03
US20140229188A1 (en) 2014-08-14
DE60038915D1 (de) 2008-06-26
CN1758334A (zh) 2006-04-12
JP4519784B2 (ja) 2010-08-04
JP4852122B2 (ja) 2012-01-11
ATE449407T1 (de) 2009-12-15
HK1140572A1 (en) 2010-10-15
ES2226779T3 (es) 2005-04-01
CN1838239A (zh) 2006-09-27
DK1617418T3 (da) 2008-09-01
US20120029927A1 (en) 2012-02-02
JP2002536679A (ja) 2002-10-29
US8255233B2 (en) 2012-08-28
JP2005010801A (ja) 2005-01-13
PT1617418E (pt) 2008-08-22
JP2006085187A (ja) 2006-03-30
EP1914729B1 (en) 2009-11-18
US8935156B2 (en) 2015-01-13
EP1914728B1 (en) 2009-11-18
ES2254992T3 (es) 2006-06-16
DE60043364D1 (de) 2009-12-31
US20090315748A1 (en) 2009-12-24
BR0009138A (pt) 2001-11-27
BR122015007141B1 (pt) 2016-03-01
US20090319280A1 (en) 2009-12-24
US8036881B2 (en) 2011-10-11
RU2226032C2 (ru) 2004-03-20
CN101625866B (zh) 2012-12-26
BRPI0009138B1 (pt) 2016-03-29
EP1408484B1 (en) 2005-11-30
WO2000045379A2 (en) 2000-08-03
CN101625866A (zh) 2010-01-13
US8036882B2 (en) 2011-10-11
DK1914729T3 (da) 2010-01-25
JP4519783B2 (ja) 2010-08-04
JP2009211089A (ja) 2009-09-17
CN1408109A (zh) 2003-04-02
CN1838238B (zh) 2010-11-03
ES2334404T3 (es) 2010-03-09
WO2000045379A3 (en) 2000-12-07
EP1157374B1 (en) 2004-09-15
EP1914729A1 (en) 2008-04-23
HK1053534A1 (en) 2003-10-24
US8036880B2 (en) 2011-10-11
PT1914728E (pt) 2010-02-24
PT1914729E (pt) 2010-02-15
US20120213385A1 (en) 2012-08-23
DE60024501D1 (de) 2006-01-05
HK1062349A1 (en) 2004-10-29
EP1408484A2 (en) 2004-04-14
DE60043363D1 (de) 2009-12-31
EP1617418A3 (en) 2006-07-26
CN1181467C (zh) 2004-12-22
DK1408484T3 (da) 2006-01-30
DK1157374T3 (da) 2004-12-20
EP1157374A2 (en) 2001-11-28
BR122015007138B1 (pt) 2016-03-01
HK1093812A1 (en) 2007-03-09
HK1094077A1 (en) 2007-03-16
JP3603026B2 (ja) 2004-12-15
EP1408484A3 (en) 2004-10-20
US20160099005A1 (en) 2016-04-07
JP2009244886A (ja) 2009-10-22
JP4511443B2 (ja) 2010-07-28
US20150095039A1 (en) 2015-04-02
BR122015007146B1 (pt) 2016-03-01
ATE395688T1 (de) 2008-05-15
EP1914728A1 (en) 2008-04-23
ES2307100T3 (es) 2008-11-16
ATE311651T1 (de) 2005-12-15
US6708145B1 (en) 2004-03-16
CN1838239B (zh) 2014-05-07
ATE276569T1 (de) 2004-10-15
EP1617418B1 (en) 2008-05-14
CN1838238A (zh) 2006-09-27
SE9903553D0 (sv) 1999-10-01
JP2006201801A (ja) 2006-08-03
EP1617418A2 (en) 2006-01-18
DE60013785D1 (de) 2004-10-21
US8543385B2 (en) 2013-09-24
CN1555046A (zh) 2004-12-15
US9245533B2 (en) 2016-01-26
AU2585700A (en) 2000-08-18
CN100587807C (zh) 2010-02-03
CN1258171C (zh) 2006-05-31
DE60013785T2 (de) 2005-09-29
US8738369B2 (en) 2014-05-27
US20130339023A1 (en) 2013-12-19
DE60024501T2 (de) 2006-06-08
DK1914728T3 (da) 2010-01-25

Similar Documents

Publication Publication Date Title
HK1082093A1 (en) Spectral band replication and high frequency reconstruction audio coding methods and apparatuses using adaptive noise-floor addition and noise substitution limiting
US9779746B2 (en) High frequency regeneration of an audio signal with synthetic sinusoid addition
Makhoul et al. High-frequency regeneration in speech coding systems
MY140567A (en) Broadband frequency translation for high frequency regeneration
HK1056429A1 (en) Enhancing perceptual performance of high frequency reconstruction coding methods by adaptive filtering
KR960032298A (ko) 재생 위상 정보를 사용하는 음성 합성 방법 및 장치
KR101430335B1 (ko) 가이드된 대역폭 확장 및 블라인드 대역폭 확장을 이용하여 광대역 신호를 생성하는 장치, 방법 및 컴퓨터 프로그램
US20110125507A1 (en) Method and System for Frequency Domain Postfiltering of Encoded Audio Data in a Decoder
AU2011239995A1 (en) Apparatus, method and computer program for generating a wideband signal using guided bandwidth extension and blind bandwidth extension
WO2002045075A3 (en) Method and apparatus for improved noise reduction in a speech encoder
Bashir et al. Phoneme adjustment in enhanced speech
Cole et al. Speech Enhancement by Formant Sharpening in the Cepstral Domain
AU6291900A (en) Audio coding with adaptive liftering