SE0004187D0 - Enhancing the performance of coding systems that use high frequency reconstruction methods - Google Patents

Enhancing the performance of coding systems that use high frequency reconstruction methods

Info

Publication number
SE0004187D0
SE0004187D0 SE0004187A SE0004187A SE0004187D0 SE 0004187 D0 SE0004187 D0 SE 0004187D0 SE 0004187 A SE0004187 A SE 0004187A SE 0004187 A SE0004187 A SE 0004187A SE 0004187 D0 SE0004187 D0 SE 0004187D0
Authority
SE
Sweden
Prior art keywords
frequency
audio signal
high frequency
crossover frequency
core encoder
Prior art date
Application number
SE0004187A
Other languages
English (en)
Swedish (sv)
Inventor
Fredrik Henn
Andreas Ehret
Michael Schug
Original Assignee
Coding Technologies Sweden 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
Application filed by Coding Technologies Sweden Ab filed Critical Coding Technologies Sweden Ab
Priority to SE0004187A priority Critical patent/SE0004187D0/xx
Publication of SE0004187D0 publication Critical patent/SE0004187D0/xx
Priority to PCT/SE2001/002533 priority patent/WO2002041302A1/en
Priority to AU2002215282A priority patent/AU2002215282A1/en
Priority to PT01983888T priority patent/PT1334484E/pt
Priority to KR1020037006583A priority patent/KR100551862B1/ko
Priority to JP2002543428A priority patent/JP3983668B2/ja
Priority to TR2004/01631T priority patent/TR200401631T4/xx
Priority to DE60103424T priority patent/DE60103424T2/de
Priority to EP01983888A priority patent/EP1334484B1/en
Priority to DK01983888T priority patent/DK1334484T3/da
Priority to CNB018189725A priority patent/CN1232950C/zh
Priority to ES01983888T priority patent/ES2218462T3/es
Priority to AT01983888T priority patent/ATE267445T1/de
Priority to US09/987,657 priority patent/US7050972B2/en
Priority to HK03108655A priority patent/HK1058096A1/xx
Priority to JP2007142978A priority patent/JP4991397B2/ja
Priority to JP2011269144A priority patent/JP5933965B2/ja
Priority to JP2014002174A priority patent/JP6207404B2/ja
Priority to JP2016114496A priority patent/JP6368740B2/ja
Priority to JP2018129571A priority patent/JP6592148B2/ja

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
    • 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
    • G10L19/16—Vocoder architecture
    • G10L19/18—Vocoders using multiple modes
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Signal Processing (AREA)
  • Computational Linguistics (AREA)
  • Quality & Reliability (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
  • Measurement And Recording Of Electrical Phenomena And Electrical Characteristics Of The Living Body (AREA)
  • Optical Communication System (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
  • Transmitters (AREA)
  • Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)
SE0004187A 2000-11-15 2000-11-15 Enhancing the performance of coding systems that use high frequency reconstruction methods SE0004187D0 (sv)

Priority Applications (20)

Application Number Priority Date Filing Date Title
SE0004187A SE0004187D0 (sv) 2000-11-15 2000-11-15 Enhancing the performance of coding systems that use high frequency reconstruction methods
AT01983888T ATE267445T1 (de) 2000-11-15 2001-11-14 Verbessern der leistung von kodierungssystemen, die hochfrequenz-rekonstruktionsverfahren verwenden
EP01983888A EP1334484B1 (en) 2000-11-15 2001-11-14 Enhancing the performance of coding systems that use high frequency reconstruction methods
CNB018189725A CN1232950C (zh) 2000-11-15 2001-11-14 性能增强的使用高频重建方法的编码系统和方法
PT01983888T PT1334484E (pt) 2000-11-15 2001-11-14 Melhorar o desempenho de sistemas de codificacao que utilizam metodos de reconstrucao a altas frequencias
KR1020037006583A KR100551862B1 (ko) 2000-11-15 2001-11-14 고주파 복원 방법을 이용하는 코딩 시스템의 성능 향상방법 및 시스템
JP2002543428A JP3983668B2 (ja) 2000-11-15 2001-11-14 高周波数の再構成方法を使用するコーディング・システムの性能拡大方法
TR2004/01631T TR200401631T4 (tr) 2000-11-15 2001-11-14 Yüksek frekanslı yeniden yapılandırma yöntemlerini kullanan kodlama sistemlerinin performansının artırılması.
DE60103424T DE60103424T2 (de) 2000-11-15 2001-11-14 Verbessern der leistung von kodierungssystemen, die hochfrequenz-rekonstruktionsverfahren verwenden
PCT/SE2001/002533 WO2002041302A1 (en) 2000-11-15 2001-11-14 Enhancing the performance of coding systems that use high frequency reconstruction methods
DK01983888T DK1334484T3 (da) 2000-11-15 2001-11-14 Forbedring af ydeevnen for kodesystemer, der anvender höjfrekvensrekonstruktionsfremgangsmåder
AU2002215282A AU2002215282A1 (en) 2000-11-15 2001-11-14 Enhancing the performance of coding systems that use high frequency reconstruction methods
ES01983888T ES2218462T3 (es) 2000-11-15 2001-11-14 Mejora del rendimiento de sistemas de cifrado que usan metodos de reconstruccion de alta frecuencia.
US09/987,657 US7050972B2 (en) 2000-11-15 2001-11-15 Enhancing the performance of coding systems that use high frequency reconstruction methods
HK03108655A HK1058096A1 (en) 2000-11-15 2003-11-27 Enhancing the performance of coding systems that use high frequency reconstruction methods.
JP2007142978A JP4991397B2 (ja) 2000-11-15 2007-05-30 高周波数の再構成方法を使用するコーディング・システムの性能拡大方法
JP2011269144A JP5933965B2 (ja) 2000-11-15 2011-12-08 高周波数の再構成方法を使用するコーディング・システムの性能拡大方法
JP2014002174A JP6207404B2 (ja) 2000-11-15 2014-01-09 高周波数の再構成方法を使用するコーディング・システムの性能拡大方法
JP2016114496A JP6368740B2 (ja) 2000-11-15 2016-06-08 高周波数の再構成方法を使用するコーディング・システムの性能拡大方法
JP2018129571A JP6592148B2 (ja) 2000-11-15 2018-07-09 高周波数の再構成方法を使用するコーディング・システムの性能拡大方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE0004187A SE0004187D0 (sv) 2000-11-15 2000-11-15 Enhancing the performance of coding systems that use high frequency reconstruction methods

Publications (1)

Publication Number Publication Date
SE0004187D0 true SE0004187D0 (sv) 2000-11-15

Family

ID=20281835

Family Applications (1)

Application Number Title Priority Date Filing Date
SE0004187A SE0004187D0 (sv) 2000-11-15 2000-11-15 Enhancing the performance of coding systems that use high frequency reconstruction methods

Country Status (15)

Country Link
US (1) US7050972B2 (da)
EP (1) EP1334484B1 (da)
JP (6) JP3983668B2 (da)
KR (1) KR100551862B1 (da)
CN (1) CN1232950C (da)
AT (1) ATE267445T1 (da)
AU (1) AU2002215282A1 (da)
DE (1) DE60103424T2 (da)
DK (1) DK1334484T3 (da)
ES (1) ES2218462T3 (da)
HK (1) HK1058096A1 (da)
PT (1) PT1334484E (da)
SE (1) SE0004187D0 (da)
TR (1) TR200401631T4 (da)
WO (1) WO2002041302A1 (da)

Families Citing this family (73)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AUPR433901A0 (en) 2001-04-10 2001-05-17 Lake Technology Limited High frequency signal construction method
US8605911B2 (en) 2001-07-10 2013-12-10 Dolby International Ab Efficient and scalable parametric stereo coding for low bitrate audio coding applications
SE0202159D0 (sv) 2001-07-10 2002-07-09 Coding Technologies Sweden Ab Efficientand scalable parametric stereo coding for low bitrate applications
EP1423847B1 (en) 2001-11-29 2005-02-02 Coding Technologies AB Reconstruction of high frequency components
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
KR100605824B1 (ko) 2002-05-13 2006-07-31 삼성전자주식회사 부호분할다중접속 이동통신시스템의 방송서비스 방법
US7447631B2 (en) 2002-06-17 2008-11-04 Dolby Laboratories Licensing Corporation Audio coding system using spectral hole filling
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
US7318027B2 (en) 2003-02-06 2008-01-08 Dolby Laboratories Licensing Corporation Conversion of synthesized spectral components for encoding and low-complexity transcoding
FR2852172A1 (fr) * 2003-03-04 2004-09-10 France Telecom Procede et dispositif de reconstruction spectrale d'un signal audio
JP2004309921A (ja) * 2003-04-09 2004-11-04 Sony Corp 符号化装置、符号化方法及びプログラム
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
DE10328777A1 (de) * 2003-06-25 2005-01-27 Coding Technologies Ab Vorrichtung und Verfahren zum Codieren eines Audiosignals und Vorrichtung und Verfahren zum Decodieren eines codierten Audiosignals
US20050004793A1 (en) * 2003-07-03 2005-01-06 Pasi Ojala Signal adaptation for higher band coding in a codec utilizing band split coding
US20050018796A1 (en) * 2003-07-07 2005-01-27 Sande Ravindra Kumar Method of combining an analysis filter bank following a synthesis filter bank and structure therefor
US7460990B2 (en) * 2004-01-23 2008-12-02 Microsoft Corporation Efficient coding of digital media spectral data using wide-sense perceptual similarity
DE102004009949B4 (de) * 2004-03-01 2006-03-09 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Vorrichtung und Verfahren zum Ermitteln eines Schätzwertes
DE602006012637D1 (de) * 2005-04-01 2010-04-15 Qualcomm Inc Vorrichtung und Verfahren für die Teilband-Sprachkodierung
TR201821299T4 (tr) 2005-04-22 2019-01-21 Qualcomm Inc Kazanç faktörü yumuşatma için sistemler, yöntemler ve aparat.
JP4907522B2 (ja) * 2005-04-28 2012-03-28 パナソニック株式会社 音声符号化装置および音声符号化方法
US7548853B2 (en) * 2005-06-17 2009-06-16 Shmunk Dmitry V Scalable compressed audio bit stream and codec using a hierarchical filterbank and multichannel joint coding
US7953604B2 (en) * 2006-01-20 2011-05-31 Microsoft Corporation Shape and scale parameters for extended-band frequency coding
US8190425B2 (en) * 2006-01-20 2012-05-29 Microsoft Corporation Complex cross-correlation parameters for multi-channel audio
US7831434B2 (en) 2006-01-20 2010-11-09 Microsoft Corporation Complex-transform channel coding with extended-band frequency coding
US20080109215A1 (en) * 2006-06-26 2008-05-08 Chi-Min Liu High frequency reconstruction by linear extrapolation
JP2010503881A (ja) * 2006-09-13 2010-02-04 テレフオンアクチーボラゲット エル エム エリクソン（パブル） 音声・音響送信器及び受信器のための方法及び装置
JP4918841B2 (ja) * 2006-10-23 2012-04-18 富士通株式会社 符号化システム
US8295507B2 (en) 2006-11-09 2012-10-23 Sony Corporation Frequency band extending apparatus, frequency band extending method, player apparatus, playing method, program and recording medium
KR101355376B1 (ko) * 2007-04-30 2014-01-23 삼성전자주식회사 고주파수 영역 부호화 및 복호화 방법 및 장치
US7885819B2 (en) 2007-06-29 2011-02-08 Microsoft Corporation Bitstream syntax for multi-process audio decoding
US9269372B2 (en) 2007-08-27 2016-02-23 Telefonaktiebolaget L M Ericsson (Publ) Adaptive transition frequency between noise fill and bandwidth extension
KR101235830B1 (ko) * 2007-12-06 2013-02-21 한국전자통신연구원 음성코덱의 품질향상장치 및 그 방법
ATE500588T1 (de) 2008-01-04 2011-03-15 Dolby Sweden Ab Audiokodierer und -dekodierer
CN101281748B (zh) * 2008-05-14 2011-06-15 武汉大学 用编码索引实现的空缺子带填充方法及编码索引生成方法
CN102089814B (zh) * 2008-07-11 2012-11-21 弗劳恩霍夫应用研究促进协会 对编码的音频信号进行解码的设备和方法
EP2301028B1 (en) 2008-07-11 2012-12-05 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. An apparatus and a method for calculating a number of spectral envelopes
AU2009267507B2 (en) 2008-07-11 2012-08-02 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Method and discriminator for classifying different segments of a signal
EP4372744A1 (en) 2008-07-11 2024-05-22 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Audio encoder, audio decoder, methods for encoding and decoding an audio signal, audio stream and computer program
US8326640B2 (en) * 2008-08-26 2012-12-04 Broadcom Corporation Method and system for multi-band amplitude estimation and gain control in an audio CODEC
JP2010079275A (ja) * 2008-08-29 2010-04-08 Sony Corp 周波数帯域拡大装置及び方法、符号化装置及び方法、復号化装置及び方法、並びにプログラム
PT2945159T (pt) 2008-12-15 2018-06-26 Fraunhofer Ges Forschung Codificador de áudio e descodificador de extensão de largura de banda
JP5446258B2 (ja) 2008-12-26 2014-03-19 富士通株式会社 オーディオ符号化装置
EP3598446B1 (en) 2009-01-16 2021-12-22 Dolby International AB Cross product enhanced harmonic transposition
JP4977157B2 (ja) * 2009-03-06 2012-07-18 株式会社エヌ・ティ・ティ・ドコモ 音信号符号化方法、音信号復号方法、符号化装置、復号装置、音信号処理システム、音信号符号化プログラム、及び、音信号復号プログラム
BR122019023877B1 (pt) 2009-03-17 2021-08-17 Dolby International Ab Sistema codificador, sistema decodificador, método para codificar um sinal estéreo para um sinal de fluxo de bits e método para decodificar um sinal de fluxo de bits para um sinal estéreo
JP4932917B2 (ja) * 2009-04-03 2012-05-16 株式会社エヌ・ティ・ティ・ドコモ 音声復号装置、音声復号方法、及び音声復号プログラム
US11657788B2 (en) 2009-05-27 2023-05-23 Dolby International Ab Efficient combined harmonic transposition
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
US9105300B2 (en) 2009-10-19 2015-08-11 Dolby International Ab Metadata time marking information for indicating a section of an audio object
MX2012011828A (es) * 2010-04-16 2013-02-27 Fraunhofer Ges Forschung Aparato, metodo y programa de computadora para generar una señal de banda amplia que utiliza extension de ancho de banda guiada y extension oculta de ancho de banda.
KR102632248B1 (ko) 2010-07-19 2024-02-02 돌비 인터네셔널 에이비 고주파 복원 동안 오디오 신호들의 프로세싱
US12002476B2 (en) 2010-07-19 2024-06-04 Dolby International Ab Processing of audio signals during high frequency reconstruction
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
CN102208188B (zh) * 2011-07-13 2013-04-17 华为技术有限公司 音频信号编解码方法和设备
US9437213B2 (en) * 2012-03-05 2016-09-06 Malaspina Labs (Barbados) Inc. Voice signal enhancement
WO2013141638A1 (ko) 2012-03-21 2013-09-26 삼성전자 주식회사 대역폭 확장을 위한 고주파수 부호화/복호화 방법 및 장치
EP2682941A1 (de) * 2012-07-02 2014-01-08 Technische Universität Ilmenau Vorrichtung, Verfahren und Computerprogramm für frei wählbare Frequenzverschiebungen in der Subband-Domäne
CN104781877A (zh) * 2012-10-31 2015-07-15 株式会社索思未来 音频信号编码装置以及音频信号解码装置
JP6148811B2 (ja) 2013-01-29 2017-06-14 フラウンホーファーゲゼルシャフト ツール フォルデルング デル アンゲヴァンテン フォルシユング エー．フアー． 周波数領域におけるｌｐｃ系符号化のための低周波数エンファシス
KR102170665B1 (ko) * 2013-04-05 2020-10-29 돌비 인터네셔널 에이비 인터리브된 파형 코딩을 위한 오디오 인코더 및 디코더
CN116741188A (zh) * 2013-04-05 2023-09-12 杜比国际公司 立体声音频编码器和解码器
TWI546799B (zh) 2013-04-05 2016-08-21 杜比國際公司 音頻編碼器及解碼器
JP6305694B2 (ja) * 2013-05-31 2018-04-04 クラリオン株式会社 信号処理装置及び信号処理方法
ES2633968T3 (es) * 2013-06-21 2017-09-26 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Procedimiento y aparato para obtener coeficientes espectrales para una trama de sustitución de una señal de audio, un decodificador de audio, un receptor de audio y un sistema para transmitir señales de audio
RU2665281C2 (ru) 2013-09-12 2018-08-28 Долби Интернэшнл Аб Временное согласование данных обработки на основе квадратурного зеркального фильтра
CN104681029B (zh) * 2013-11-29 2018-06-05 华为技术有限公司 立体声相位参数的编码方法及装置
US20150194157A1 (en) * 2014-01-06 2015-07-09 Nvidia Corporation System, method, and computer program product for artifact reduction in high-frequency regeneration audio signals
KR102250472B1 (ko) * 2016-03-07 2021-05-12 프라운호퍼 게젤샤프트 쭈르 푀르데룽 데어 안겐반텐 포르슝 에. 베. 하이브리드 은닉 방법: 오디오 코덱들에서 주파수 및 시간 도메인 패킷 손실 은닉의 결합
WO2021144244A1 (en) 2020-01-15 2021-07-22 Dolby International Ab Adaptive streaming of media content with bitrate switching
CN116348951A (zh) * 2020-07-30 2023-06-27 弗劳恩霍夫应用研究促进协会 用于编码音频信号或用于解码经编码音频场景的设备、方法及计算机程序

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4158751A (en) * 1978-02-06 1979-06-19 Bode Harald E W Analog speech encoder and decoder
JPS595297A (ja) * 1982-07-01 1984-01-12 日本電気株式会社 帯域分割型ボコ−ダ
NL8700985A (nl) * 1987-04-27 1988-11-16 Philips Nv Systeem voor sub-band codering van een digitaal audiosignaal.
US5285498A (en) * 1992-03-02 1994-02-08 At&T Bell Laboratories Method and apparatus for coding audio signals based on perceptual model
JP3297750B2 (ja) * 1992-03-18 2002-07-02 ソニー株式会社 符号化方法
JP3218679B2 (ja) * 1992-04-15 2001-10-15 ソニー株式会社 高能率符号化方法
US5404377A (en) * 1994-04-08 1995-04-04 Moses; Donald W. Simultaneous transmission of data and audio signals by means of perceptual coding
JP3277692B2 (ja) * 1994-06-13 2002-04-22 ソニー株式会社 情報符号化方法、情報復号化方法及び情報記録媒体
JP3557674B2 (ja) * 1994-12-15 2004-08-25 ソニー株式会社 高能率符号化方法及び装置
US5646961A (en) * 1994-12-30 1997-07-08 Lucent Technologies Inc. Method for noise weighting filtering
JPH09172376A (ja) * 1995-12-20 1997-06-30 Hitachi Ltd 量子化ビット割当て装置
JP3255022B2 (ja) * 1996-07-01 2002-02-12 日本電気株式会社 適応変換符号化方式および適応変換復号方式
US6490562B1 (en) * 1997-04-09 2002-12-03 Matsushita Electric Industrial Co., Ltd. Method and system for analyzing voices
SE512719C2 (sv) * 1997-06-10 2000-05-02 Lars Gustaf Liljeryd En metod och anordning för reduktion av dataflöde baserad på harmonisk bandbreddsexpansion
US5928342A (en) * 1997-07-02 1999-07-27 Creative Technology Ltd. Audio effects processor integrated on a single chip with a multiport memory onto which multiple asynchronous digital sound samples can be concurrently loaded
DE19730130C2 (de) * 1997-07-14 2002-02-28 Fraunhofer Ges Forschung Verfahren zum Codieren eines Audiosignals
US6385548B2 (en) * 1997-12-12 2002-05-07 Motorola, Inc. Apparatus and method for detecting and characterizing signals in a communication system
US6757395B1 (en) * 2000-01-12 2004-06-29 Sonic Innovations, Inc. Noise reduction apparatus and method
WO2002029784A1 (en) * 2000-10-02 2002-04-11 Clarity, Llc Audio visual speech processing

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EP1334484A1 (en) 2003-08-13
JP4991397B2 (ja) 2012-08-01
DE60103424T2 (de) 2005-06-16
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US7050972B2 (en) 2006-05-23
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