DE60132217D1 - Übertragungsfehler-verdeckung in einem audiosignal - Google Patents
Übertragungsfehler-verdeckung in einem audiosignalInfo
- Publication number
- DE60132217D1 DE60132217D1 DE60132217T DE60132217T DE60132217D1 DE 60132217 D1 DE60132217 D1 DE 60132217D1 DE 60132217 T DE60132217 T DE 60132217T DE 60132217 T DE60132217 T DE 60132217T DE 60132217 D1 DE60132217 D1 DE 60132217D1
- Authority
- DE
- Germany
- Prior art keywords
- audio signal
- signal
- samples
- transfer error
- estimated
- 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.)
- Expired - Lifetime
Links
- 230000005236 sound signal Effects 0.000 title abstract 2
- 230000005540 biological transmission Effects 0.000 abstract 2
- 230000007774 longterm Effects 0.000 abstract 1
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
- G10L19/005—Correction of errors induced by the transmission channel, if related to the coding algorithm
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Acoustics & Sound (AREA)
- Health & Medical Sciences (AREA)
- Audiology, Speech & Language Pathology (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- Signal Processing (AREA)
- Computational Linguistics (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
- Detection And Prevention Of Errors In Transmission (AREA)
- Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
- Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
- Mobile Radio Communication Systems (AREA)
- Automobile Manufacture Line, Endless Track Vehicle, Trailer (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0011285A FR2813722B1 (fr) | 2000-09-05 | 2000-09-05 | Procede et dispositif de dissimulation d'erreurs et systeme de transmission comportant un tel dispositif |
FR0011285 | 2000-09-05 | ||
PCT/FR2001/002747 WO2002021515A1 (fr) | 2000-09-05 | 2001-09-05 | Dissimulation d'erreurs de transmission dans un signal audio |
Publications (2)
Publication Number | Publication Date |
---|---|
DE60132217D1 true DE60132217D1 (de) | 2008-02-14 |
DE60132217T2 DE60132217T2 (de) | 2009-01-29 |
Family
ID=8853973
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE60132217T Expired - Lifetime DE60132217T2 (de) | 2000-09-05 | 2001-09-05 | Übertragungsfehler-verdeckung in einem audiosignal |
Country Status (11)
Country | Link |
---|---|
US (2) | US7596489B2 (de) |
EP (1) | EP1316087B1 (de) |
JP (1) | JP5062937B2 (de) |
AT (1) | ATE382932T1 (de) |
AU (1) | AU2001289991A1 (de) |
DE (1) | DE60132217T2 (de) |
ES (1) | ES2298261T3 (de) |
FR (1) | FR2813722B1 (de) |
HK (1) | HK1055346A1 (de) |
IL (2) | IL154728A0 (de) |
WO (1) | WO2002021515A1 (de) |
Families Citing this family (74)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20030163304A1 (en) * | 2002-02-28 | 2003-08-28 | Fisseha Mekuria | Error concealment for voice transmission system |
FR2849727B1 (fr) * | 2003-01-08 | 2005-03-18 | France Telecom | Procede de codage et de decodage audio a debit variable |
WO2004068098A1 (ja) * | 2003-01-30 | 2004-08-12 | Fujitsu Limited | 音声パケット消失隠蔽装置,音声パケット消失隠蔽方法,受信端末および音声通信システム |
US7835916B2 (en) * | 2003-12-19 | 2010-11-16 | Telefonaktiebolaget Lm Ericsson (Publ) | Channel signal concealment in multi-channel audio systems |
KR100587953B1 (ko) * | 2003-12-26 | 2006-06-08 | 한국전자통신연구원 | 대역-분할 광대역 음성 코덱에서의 고대역 오류 은닉 장치 및 그를 이용한 비트스트림 복호화 시스템 |
JP4761506B2 (ja) * | 2005-03-01 | 2011-08-31 | 国立大学法人北陸先端科学技術大学院大学 | 音声処理方法と装置及びプログラム並びに音声システム |
DE502006004136D1 (de) * | 2005-04-28 | 2009-08-13 | Siemens Ag | Verfahren und vorrichtung zur geräuschunterdrückung |
US7831421B2 (en) * | 2005-05-31 | 2010-11-09 | Microsoft Corporation | Robust decoder |
US8620644B2 (en) * | 2005-10-26 | 2013-12-31 | Qualcomm Incorporated | Encoder-assisted frame loss concealment techniques for audio coding |
US7805297B2 (en) | 2005-11-23 | 2010-09-28 | Broadcom Corporation | Classification-based frame loss concealment for audio signals |
US8417185B2 (en) | 2005-12-16 | 2013-04-09 | Vocollect, Inc. | Wireless headset and method for robust voice data communication |
US8160874B2 (en) * | 2005-12-27 | 2012-04-17 | Panasonic Corporation | Speech frame loss compensation using non-cyclic-pulse-suppressed version of previous frame excitation as synthesis filter source |
US7773767B2 (en) | 2006-02-06 | 2010-08-10 | Vocollect, Inc. | Headset terminal with rear stability strap |
US7885419B2 (en) | 2006-02-06 | 2011-02-08 | Vocollect, Inc. | Headset terminal with speech functionality |
CA2658962A1 (en) * | 2006-07-27 | 2008-01-31 | Nec Corporation | Sound data decoding apparatus |
US8015000B2 (en) * | 2006-08-03 | 2011-09-06 | Broadcom Corporation | Classification-based frame loss concealment for audio signals |
JP5289319B2 (ja) * | 2006-10-20 | 2013-09-11 | フランス・テレコム | 隠蔽フレーム(パケット)を生成するための方法、プログラムおよび装置 |
EP1921608A1 (de) * | 2006-11-13 | 2008-05-14 | Electronics And Telecommunications Research Institute | Verfahren für die Einfügung von Vektorinformationen zum Schätzen von Sprachdaten in der Phase der Neusynchronisierung von Schlüsseln, Verfahren zum Übertragen von Vektorinformationen und Verfahren zum Schätzen der Sprachdaten bei der Neusynchronisierung von Schlüsseln unter Verwendung der Vektorinformationen |
KR100862662B1 (ko) | 2006-11-28 | 2008-10-10 | 삼성전자주식회사 | 프레임 오류 은닉 방법 및 장치, 이를 이용한 오디오 신호복호화 방법 및 장치 |
JP4504389B2 (ja) * | 2007-02-22 | 2010-07-14 | 富士通株式会社 | 隠蔽信号生成装置、隠蔽信号生成方法および隠蔽信号生成プログラム |
BRPI0808200A8 (pt) * | 2007-03-02 | 2017-09-12 | Panasonic Corp | Dispositivo de codificação de áudio e dispositivo de decodificação de áudio |
US7853450B2 (en) * | 2007-03-30 | 2010-12-14 | Alcatel-Lucent Usa Inc. | Digital voice enhancement |
US8126707B2 (en) * | 2007-04-05 | 2012-02-28 | Texas Instruments Incorporated | Method and system for speech compression |
EP2112653A4 (de) * | 2007-05-24 | 2013-09-11 | Panasonic Corp | Audiodekodierungsvorrichtung, audiodekodierungsverfahren, programm und integrierter schaltkreis |
KR100906766B1 (ko) * | 2007-06-18 | 2009-07-09 | 한국전자통신연구원 | 키 재동기 구간의 음성 데이터 예측을 위한 음성 데이터송수신 장치 및 방법 |
CN101802906B (zh) * | 2007-09-21 | 2013-01-02 | 法国电信公司 | 传送误差隐藏的方法和装置、以及数字信号解码器 |
FR2929466A1 (fr) * | 2008-03-28 | 2009-10-02 | France Telecom | Dissimulation d'erreur de transmission dans un signal numerique dans une structure de decodage hierarchique |
CN101588341B (zh) * | 2008-05-22 | 2012-07-04 | 华为技术有限公司 | 一种丢帧隐藏的方法及装置 |
KR20090122143A (ko) * | 2008-05-23 | 2009-11-26 | 엘지전자 주식회사 | 오디오 신호 처리 방법 및 장치 |
MX2011000375A (es) * | 2008-07-11 | 2011-05-19 | Fraunhofer Ges Forschung | Codificador y decodificador de audio para codificar y decodificar tramas de una señal de audio muestreada. |
USD605629S1 (en) | 2008-09-29 | 2009-12-08 | Vocollect, Inc. | Headset |
JP2010164859A (ja) * | 2009-01-16 | 2010-07-29 | Sony Corp | オーディオ再生装置、情報再生システム、オーディオ再生方法、およびプログラム |
CN101609677B (zh) | 2009-03-13 | 2012-01-04 | 华为技术有限公司 | 一种预处理方法、装置及编码设备 |
US8160287B2 (en) | 2009-05-22 | 2012-04-17 | Vocollect, Inc. | Headset with adjustable headband |
US8438659B2 (en) | 2009-11-05 | 2013-05-07 | Vocollect, Inc. | Portable computing device and headset interface |
US9123334B2 (en) * | 2009-12-14 | 2015-09-01 | Panasonic Intellectual Property Management Co., Ltd. | Vector quantization of algebraic codebook with high-pass characteristic for polarity selection |
KR101551046B1 (ko) * | 2011-02-14 | 2015-09-07 | 프라운호퍼 게젤샤프트 쭈르 푀르데룽 데어 안겐반텐 포르슝 에. 베. | 저-지연 통합 스피치 및 오디오 코딩에서 에러 은닉을 위한 장치 및 방법 |
CN103477387B (zh) | 2011-02-14 | 2015-11-25 | 弗兰霍菲尔运输应用研究公司 | 使用频谱域噪声整形的基于线性预测的编码方案 |
MY166394A (en) | 2011-02-14 | 2018-06-25 | Fraunhofer Ges Forschung | Information signal representation using lapped transform |
BR112013020482B1 (pt) | 2011-02-14 | 2021-02-23 | Fraunhofer Ges Forschung | aparelho e método para processar um sinal de áudio decodificado em um domínio espectral |
ES2639646T3 (es) | 2011-02-14 | 2017-10-27 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Codificación y decodificación de posiciones de impulso de pistas de una señal de audio |
KR101525185B1 (ko) | 2011-02-14 | 2015-06-02 | 프라운호퍼 게젤샤프트 쭈르 푀르데룽 데어 안겐반텐 포르슝 에. 베. | 트랜지언트 검출 및 품질 결과를 사용하여 일부분의 오디오 신호를 코딩하기 위한 장치 및 방법 |
US8849663B2 (en) * | 2011-03-21 | 2014-09-30 | The Intellisis Corporation | Systems and methods for segmenting and/or classifying an audio signal from transformed audio information |
US8767978B2 (en) | 2011-03-25 | 2014-07-01 | The Intellisis Corporation | System and method for processing sound signals implementing a spectral motion transform |
US9026434B2 (en) * | 2011-04-11 | 2015-05-05 | Samsung Electronic Co., Ltd. | Frame erasure concealment for a multi rate speech and audio codec |
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 |
US8548803B2 (en) | 2011-08-08 | 2013-10-01 | The Intellisis Corporation | System and method of processing a sound signal including transforming the sound signal into a frequency-chirp domain |
US9183850B2 (en) | 2011-08-08 | 2015-11-10 | The Intellisis Corporation | System and method for tracking sound pitch across an audio signal |
CN107068156B (zh) | 2011-10-21 | 2021-03-30 | 三星电子株式会社 | 帧错误隐藏方法和设备以及音频解码方法和设备 |
EP2830062B1 (de) * | 2012-03-21 | 2019-11-20 | Samsung Electronics Co., Ltd. | Verfahren und vorrichtung für hochfrequente codierung/decodierung zur bandbreitenerweiterung |
US9123328B2 (en) * | 2012-09-26 | 2015-09-01 | Google Technology Holdings LLC | Apparatus and method for audio frame loss recovery |
US20150302892A1 (en) * | 2012-11-27 | 2015-10-22 | Nokia Technologies Oy | A shared audio scene apparatus |
US9437203B2 (en) * | 2013-03-07 | 2016-09-06 | QoSound, Inc. | Error concealment for speech decoder |
FR3004876A1 (fr) * | 2013-04-18 | 2014-10-24 | France Telecom | Correction de perte de trame par injection de bruit pondere. |
FR3011408A1 (fr) * | 2013-09-30 | 2015-04-03 | Orange | Re-echantillonnage d'un signal audio pour un codage/decodage a bas retard |
BR122022008603B1 (pt) | 2013-10-31 | 2023-01-10 | Fraunhofer-Gesellschaft Zur Forderung Der Angewandten Forschung E.V. | Decodificador de áudio e método para fornecer uma informação de áudio decodificada utilizando uma dissimulação de erro que modifica um sinal de excitação no domínio de tempo |
JP6306175B2 (ja) * | 2013-10-31 | 2018-04-04 | フラウンホッファー−ゲゼルシャフト ツァ フェルダールング デァ アンゲヴァンテン フォアシュンク エー.ファオ | 時間ドメイン励振信号に基づくエラーコンシールメントを用いて、復号化されたオーディオ情報を提供するオーディオデコーダおよび復号化されたオーディオ情報を提供する方法 |
US9437211B1 (en) * | 2013-11-18 | 2016-09-06 | QoSound, Inc. | Adaptive delay for enhanced speech processing |
EP2922055A1 (de) | 2014-03-19 | 2015-09-23 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Vorrichtung, Verfahren und zugehöriges Computerprogramm zur Erzeugung eines Fehlerverschleierungssignals mit einzelnen Ersatz-LPC-Repräsentationen für individuelle Codebuchinformationen |
EP2922056A1 (de) * | 2014-03-19 | 2015-09-23 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Vorrichtung, Verfahren und zugehöriges Computerprogramm zur Erzeugung eines Fehlerverschleierungssignals unter Verwendung von Leistungskompensation |
EP2922054A1 (de) * | 2014-03-19 | 2015-09-23 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Vorrichtung, Verfahren und zugehöriges Computerprogramm zur Erzeugung eines Fehlerverschleierungssignals unter Verwendung einer adaptiven Rauschschätzung |
TWI602172B (zh) | 2014-08-27 | 2017-10-11 | 弗勞恩霍夫爾協會 | 使用參數以加強隱蔽之用於編碼及解碼音訊內容的編碼器、解碼器及方法 |
CN112967727A (zh) * | 2014-12-09 | 2021-06-15 | 杜比国际公司 | Mdct域错误掩盖 |
US9922668B2 (en) | 2015-02-06 | 2018-03-20 | Knuedge Incorporated | Estimating fractional chirp rate with multiple frequency representations |
US9870785B2 (en) | 2015-02-06 | 2018-01-16 | Knuedge Incorporated | Determining features of harmonic signals |
US9842611B2 (en) | 2015-02-06 | 2017-12-12 | Knuedge Incorporated | Estimating pitch using peak-to-peak distances |
EP3427257B1 (de) * | 2016-03-07 | 2021-05-05 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Fehlerverdeckungseinheit, audiodecodierer und zugehöriges verfahren und computerprogramm zur ausblendung eines verdeckten audiorahmens gemäss unterschiedlicher dämpfungsfaktoren für unterschiedliche frequenzbänder |
WO2017153300A1 (en) * | 2016-03-07 | 2017-09-14 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Error concealment unit, audio decoder, and related method and computer program using characteristics of a decoded representation of a properly decoded audio frame |
EP3553777B1 (de) * | 2018-04-09 | 2022-07-20 | Dolby Laboratories Licensing Corporation | Verdecken von paketverlusten mit niedriger komplexität für transcodierte audiosignale |
US10763885B2 (en) | 2018-11-06 | 2020-09-01 | Stmicroelectronics S.R.L. | Method of error concealment, and associated device |
JP7130878B2 (ja) * | 2019-01-13 | 2022-09-05 | 華為技術有限公司 | 高分解能オーディオコーディング |
WO2020164751A1 (en) * | 2019-02-13 | 2020-08-20 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Decoder and decoding method for lc3 concealment including full frame loss concealment and partial frame loss concealment |
CN111063362B (zh) * | 2019-12-11 | 2022-03-22 | 中国电子科技集团公司第三十研究所 | 一种数字语音通信噪音消除和语音恢复方法及装置 |
CN111554309A (zh) * | 2020-05-15 | 2020-08-18 | 腾讯科技(深圳)有限公司 | 一种语音处理方法、装置、设备及存储介质 |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2746033B2 (ja) * | 1992-12-24 | 1998-04-28 | 日本電気株式会社 | 音声復号化装置 |
CA2142391C (en) * | 1994-03-14 | 2001-05-29 | Juin-Hwey Chen | Computational complexity reduction during frame erasure or packet loss |
US5574825A (en) | 1994-03-14 | 1996-11-12 | Lucent Technologies Inc. | Linear prediction coefficient generation during frame erasure or packet loss |
US5732389A (en) * | 1995-06-07 | 1998-03-24 | Lucent Technologies Inc. | Voiced/unvoiced classification of speech for excitation codebook selection in celp speech decoding during frame erasures |
US5699485A (en) * | 1995-06-07 | 1997-12-16 | Lucent Technologies Inc. | Pitch delay modification during frame erasures |
CA2177413A1 (en) * | 1995-06-07 | 1996-12-08 | Yair Shoham | Codebook gain attenuation during frame erasures |
CN1494055A (zh) * | 1997-12-24 | 2004-05-05 | ������������ʽ���� | 声音编码方法和声音译码方法以及声音编码装置和声音译码装置 |
FR2774827B1 (fr) * | 1998-02-06 | 2000-04-14 | France Telecom | Procede de decodage d'un flux binaire representatif d'un signal audio |
US6449590B1 (en) * | 1998-08-24 | 2002-09-10 | Conexant Systems, Inc. | Speech encoder using warping in long term preprocessing |
US6188980B1 (en) * | 1998-08-24 | 2001-02-13 | Conexant Systems, Inc. | Synchronized encoder-decoder frame concealment using speech coding parameters including line spectral frequencies and filter coefficients |
US6556966B1 (en) * | 1998-08-24 | 2003-04-29 | Conexant Systems, Inc. | Codebook structure for changeable pulse multimode speech coding |
US6240386B1 (en) * | 1998-08-24 | 2001-05-29 | Conexant Systems, Inc. | Speech codec employing noise classification for noise compensation |
JP3365360B2 (ja) * | 1999-07-28 | 2003-01-08 | 日本電気株式会社 | 音声信号復号方法および音声信号符号化復号方法とその装置 |
US7590525B2 (en) * | 2001-08-17 | 2009-09-15 | Broadcom Corporation | Frame erasure concealment for predictive speech coding based on extrapolation of speech waveform |
-
2000
- 2000-09-05 FR FR0011285A patent/FR2813722B1/fr not_active Expired - Fee Related
-
2001
- 2001-09-05 EP EP01969857A patent/EP1316087B1/de not_active Expired - Lifetime
- 2001-09-05 IL IL15472801A patent/IL154728A0/xx unknown
- 2001-09-05 US US10/363,783 patent/US7596489B2/en not_active Expired - Lifetime
- 2001-09-05 DE DE60132217T patent/DE60132217T2/de not_active Expired - Lifetime
- 2001-09-05 WO PCT/FR2001/002747 patent/WO2002021515A1/fr active IP Right Grant
- 2001-09-05 AT AT01969857T patent/ATE382932T1/de not_active IP Right Cessation
- 2001-09-05 ES ES01969857T patent/ES2298261T3/es not_active Expired - Lifetime
- 2001-09-05 JP JP2002525647A patent/JP5062937B2/ja not_active Expired - Lifetime
- 2001-09-05 AU AU2001289991A patent/AU2001289991A1/en not_active Abandoned
-
2003
- 2003-03-04 IL IL154728A patent/IL154728A/en unknown
- 2003-10-15 HK HK03107426A patent/HK1055346A1/xx not_active IP Right Cessation
-
2009
- 2009-08-07 US US12/462,763 patent/US8239192B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
IL154728A0 (en) | 2003-10-31 |
JP5062937B2 (ja) | 2012-10-31 |
DE60132217T2 (de) | 2009-01-29 |
US20100070271A1 (en) | 2010-03-18 |
FR2813722B1 (fr) | 2003-01-24 |
HK1055346A1 (en) | 2004-01-02 |
EP1316087A1 (de) | 2003-06-04 |
EP1316087B1 (de) | 2008-01-02 |
US8239192B2 (en) | 2012-08-07 |
AU2001289991A1 (en) | 2002-03-22 |
WO2002021515A1 (fr) | 2002-03-14 |
JP2004508597A (ja) | 2004-03-18 |
FR2813722A1 (fr) | 2002-03-08 |
IL154728A (en) | 2008-07-08 |
ATE382932T1 (de) | 2008-01-15 |
US20040010407A1 (en) | 2004-01-15 |
US7596489B2 (en) | 2009-09-29 |
ES2298261T3 (es) | 2008-05-16 |
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