DE60225400D1 - Verfahren und Vorrichtung zur Verarbeitung eines dekodierten Sprachsignals - Google Patents
Verfahren und Vorrichtung zur Verarbeitung eines dekodierten SprachsignalsInfo
- Publication number
- DE60225400D1 DE60225400D1 DE60225400T DE60225400T DE60225400D1 DE 60225400 D1 DE60225400 D1 DE 60225400D1 DE 60225400 T DE60225400 T DE 60225400T DE 60225400 T DE60225400 T DE 60225400T DE 60225400 D1 DE60225400 D1 DE 60225400D1
- Authority
- DE
- Germany
- Prior art keywords
- processing
- speech signal
- decoded speech
- decoded
- signal
- 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
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
- G10L19/04—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
Landscapes
- Engineering & Computer Science (AREA)
- Computational Linguistics (AREA)
- Signal Processing (AREA)
- Health & Medical Sciences (AREA)
- Audiology, Speech & Language Pathology (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
- Filters That Use Time-Delay Elements (AREA)
Applications Claiming Priority (8)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US215048 | 1998-12-17 | ||
US32644901P | 2001-10-03 | 2001-10-03 | |
US326449P | 2001-10-03 | ||
US183554 | 2002-06-28 | ||
US10/183,554 US7512535B2 (en) | 2001-10-03 | 2002-06-28 | Adaptive postfiltering methods and systems for decoding speech |
US10/183,418 US7353168B2 (en) | 2001-10-03 | 2002-06-28 | Method and apparatus to eliminate discontinuities in adaptively filtered signals |
US183418 | 2002-06-28 | ||
US10/215,048 US8032363B2 (en) | 2001-10-03 | 2002-08-09 | Adaptive postfiltering methods and systems for decoding speech |
Publications (2)
Publication Number | Publication Date |
---|---|
DE60225400D1 true DE60225400D1 (de) | 2008-04-17 |
DE60225400T2 DE60225400T2 (de) | 2009-02-26 |
Family
ID=26909634
Family Applications (3)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE60214814T Expired - Lifetime DE60214814T2 (de) | 2001-10-03 | 2002-10-03 | Verfahren und Vorrichtung zur Beseitigung von Diskontinuitäten eines adaptiv gefilterten Signals |
DE60225400T Expired - Lifetime DE60225400T2 (de) | 2001-10-03 | 2002-10-03 | Verfahren und Vorrichtung zur Verarbeitung eines dekodierten Sprachsignals |
DE60209861T Expired - Lifetime DE60209861T2 (de) | 2001-10-03 | 2002-10-03 | Adaptive Postfilterung zur Sprachdekodierung |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE60214814T Expired - Lifetime DE60214814T2 (de) | 2001-10-03 | 2002-10-03 | Verfahren und Vorrichtung zur Beseitigung von Diskontinuitäten eines adaptiv gefilterten Signals |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE60209861T Expired - Lifetime DE60209861T2 (de) | 2001-10-03 | 2002-10-03 | Adaptive Postfilterung zur Sprachdekodierung |
Country Status (3)
Country | Link |
---|---|
US (3) | US7353168B2 (de) |
EP (3) | EP1315150B1 (de) |
DE (3) | DE60214814T2 (de) |
Families Citing this family (41)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7117156B1 (en) * | 1999-04-19 | 2006-10-03 | At&T Corp. | Method and apparatus for performing packet loss or frame erasure concealment |
US7047190B1 (en) * | 1999-04-19 | 2006-05-16 | At&Tcorp. | Method and apparatus for performing packet loss or frame erasure concealment |
US7353168B2 (en) | 2001-10-03 | 2008-04-01 | Broadcom Corporation | Method and apparatus to eliminate discontinuities in adaptively filtered signals |
EP1383110A1 (de) * | 2002-07-17 | 2004-01-21 | STMicroelectronics N.V. | Verfahren und Vorrichtung für Breitbandsprachkodierung, insbesondere mit einer verbesserten Qualität der stimmhaften Rahmen |
US7478040B2 (en) * | 2003-10-24 | 2009-01-13 | Broadcom Corporation | Method for adaptive filtering |
US8473286B2 (en) * | 2004-02-26 | 2013-06-25 | Broadcom Corporation | Noise feedback coding system and method for providing generalized noise shaping within a simple filter structure |
CA2588262A1 (en) * | 2004-11-05 | 2006-05-18 | Interdigital Technology Corporation | Adaptive equalizer with a dual-mode active taps mask generator and a pilot reference signal amplitude control unit |
US7177804B2 (en) * | 2005-05-31 | 2007-02-13 | Microsoft Corporation | Sub-band voice codec with multi-stage codebooks and redundant coding |
US7831421B2 (en) * | 2005-05-31 | 2010-11-09 | Microsoft Corporation | Robust decoder |
US7707034B2 (en) * | 2005-05-31 | 2010-04-27 | Microsoft Corporation | Audio codec post-filter |
US20070299655A1 (en) * | 2006-06-22 | 2007-12-27 | Nokia Corporation | Method, Apparatus and Computer Program Product for Providing Low Frequency Expansion of Speech |
DE602007012116D1 (de) * | 2006-08-15 | 2011-03-03 | Dolby Lab Licensing Corp | Arbiträre formung einer temporären rauschhüllkurve ohne nebeninformation |
WO2008032828A1 (fr) * | 2006-09-15 | 2008-03-20 | Panasonic Corporation | Dispositif de codage audio et procédé de codage audio |
US8005671B2 (en) * | 2006-12-04 | 2011-08-23 | Qualcomm Incorporated | Systems and methods for dynamic normalization to reduce loss in precision for low-level signals |
JPWO2008072701A1 (ja) * | 2006-12-13 | 2010-04-02 | パナソニック株式会社 | ポストフィルタおよびフィルタリング方法 |
ATE548728T1 (de) * | 2007-03-02 | 2012-03-15 | Ericsson Telefon Ab L M | Nichtkausales nachfilter |
US9318117B2 (en) * | 2007-03-05 | 2016-04-19 | Telefonaktiebolaget Lm Ericsson (Publ) | Method and arrangement for controlling smoothing of stationary background noise |
CN101303858B (zh) * | 2007-05-11 | 2011-06-01 | 华为技术有限公司 | 实现基音增强后处理的方法及装置 |
CN101308655B (zh) * | 2007-05-16 | 2011-07-06 | 展讯通信(上海)有限公司 | 一种音频编解码方法与装置 |
US7826572B2 (en) * | 2007-06-13 | 2010-11-02 | Texas Instruments Incorporated | Dynamic optimization of overlap-and-add length |
US8639501B2 (en) * | 2007-06-27 | 2014-01-28 | Telefonaktiebolaget Lm Ericsson (Publ) | Method and arrangement for enhancing spatial audio signals |
JP5326311B2 (ja) * | 2008-03-19 | 2013-10-30 | 沖電気工業株式会社 | 音声帯域拡張装置、方法及びプログラム、並びに、音声通信装置 |
CN101483495B (zh) * | 2008-03-20 | 2012-02-15 | 华为技术有限公司 | 一种背景噪声生成方法以及噪声处理装置 |
US8645129B2 (en) * | 2008-05-12 | 2014-02-04 | Broadcom Corporation | Integrated speech intelligibility enhancement system and acoustic echo canceller |
US9197181B2 (en) * | 2008-05-12 | 2015-11-24 | Broadcom Corporation | Loudness enhancement system and method |
JP4735711B2 (ja) * | 2008-12-17 | 2011-07-27 | ソニー株式会社 | 情報符号化装置 |
ES2902392T3 (es) * | 2010-07-02 | 2022-03-28 | Dolby Int Ab | Descodificación de audio con pos-filtración selectiva |
WO2013066238A2 (en) * | 2011-11-02 | 2013-05-10 | Telefonaktiebolaget L M Ericsson (Publ) | Generation of a high band extension of a bandwidth extended audio signal |
CN102930872A (zh) * | 2012-11-05 | 2013-02-13 | 深圳广晟信源技术有限公司 | 用于宽带语音解码中基音增强后处理的方法及装置 |
FR3008533A1 (fr) | 2013-07-12 | 2015-01-16 | Orange | Facteur d'echelle optimise pour l'extension de bande de frequence dans un decodeur de signaux audiofrequences |
BR112015029172B1 (pt) | 2014-07-28 | 2022-08-23 | Fraunhofer-Gesellschaft zur Föerderung der Angewandten Forschung E.V. | Aparelho e método para selecionar um dentre um primeiro algoritmo de codificação e um segundo algoritmo de codificação com o uso de redução de harmônicos |
EP2980796A1 (de) | 2014-07-28 | 2016-02-03 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Verfahren und Vorrichtung zur Verarbeitung eines Audiosignals, Audiodecodierer und Audiocodierer |
EP3483886A1 (de) | 2017-11-10 | 2019-05-15 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Auswahl einer grundfrequenz |
EP3483878A1 (de) | 2017-11-10 | 2019-05-15 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Audiodecoder mit auswahlfunktion für unterschiedliche verlustmaskierungswerkzeuge |
EP3483879A1 (de) | 2017-11-10 | 2019-05-15 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Analyse-/synthese-fensterfunktion für modulierte geläppte transformation |
EP3483883A1 (de) | 2017-11-10 | 2019-05-15 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Audiokodierung und -dekodierung mit selektiver nachfilterung |
EP3483880A1 (de) | 2017-11-10 | 2019-05-15 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Zeitliche rauschformung |
EP3483884A1 (de) | 2017-11-10 | 2019-05-15 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Signalfiltrierung |
EP3483882A1 (de) | 2017-11-10 | 2019-05-15 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Steuerung der bandbreite in codierern und/oder decodierern |
WO2019091576A1 (en) | 2017-11-10 | 2019-05-16 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Audio encoders, audio decoders, methods and computer programs adapting an encoding and decoding of least significant bits |
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 |
Family Cites Families (41)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL8400728A (nl) | 1984-03-07 | 1985-10-01 | Philips Nv | Digitale spraakcoder met basisband residucodering. |
US4617676A (en) * | 1984-09-04 | 1986-10-14 | At&T Bell Laboratories | Predictive communication system filtering arrangement |
US4969192A (en) * | 1987-04-06 | 1990-11-06 | Voicecraft, Inc. | Vector adaptive predictive coder for speech and audio |
US5241650A (en) * | 1989-10-17 | 1993-08-31 | Motorola, Inc. | Digital speech decoder having a postfilter with reduced spectral distortion |
US5233660A (en) * | 1991-09-10 | 1993-08-03 | At&T Bell Laboratories | Method and apparatus for low-delay celp speech coding and decoding |
US5574825A (en) * | 1994-03-14 | 1996-11-12 | Lucent Technologies Inc. | Linear prediction coefficient generation during frame erasure or packet loss |
US5615298A (en) * | 1994-03-14 | 1997-03-25 | Lucent Technologies Inc. | Excitation signal synthesis during frame erasure or packet loss |
EP0732687B2 (de) | 1995-03-13 | 2005-10-12 | Matsushita Electric Industrial Co., Ltd. | Vorrichtung zur Erweiterung der Sprachbandbreite |
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 |
US5699485A (en) * | 1995-06-07 | 1997-12-16 | Lucent Technologies Inc. | Pitch delay modification during frame erasures |
US5699458A (en) * | 1995-06-29 | 1997-12-16 | Intel Corporation | Efficient browsing of encoded images |
US5774837A (en) | 1995-09-13 | 1998-06-30 | Voxware, Inc. | Speech coding system and method using voicing probability determination |
US5864798A (en) * | 1995-09-18 | 1999-01-26 | Kabushiki Kaisha Toshiba | Method and apparatus for adjusting a spectrum shape of a speech signal |
CA2185745C (en) * | 1995-09-19 | 2001-02-13 | Juin-Hwey Chen | Synthesis of speech signals in the absence of coded parameters |
TW321810B (de) * | 1995-10-26 | 1997-12-01 | Sony Co Ltd | |
JP3680380B2 (ja) * | 1995-10-26 | 2005-08-10 | ソニー株式会社 | 音声符号化方法及び装置 |
JP3653826B2 (ja) * | 1995-10-26 | 2005-06-02 | ソニー株式会社 | 音声復号化方法及び装置 |
US5867814A (en) * | 1995-11-17 | 1999-02-02 | National Semiconductor Corporation | Speech coder that utilizes correlation maximization to achieve fast excitation coding, and associated coding method |
AU3702497A (en) | 1996-07-30 | 1998-02-20 | British Telecommunications Public Limited Company | Speech coding |
US6269331B1 (en) * | 1996-11-14 | 2001-07-31 | Nokia Mobile Phones Limited | Transmission of comfort noise parameters during discontinuous transmission |
TW326070B (en) * | 1996-12-19 | 1998-02-01 | Holtek Microelectronics Inc | The estimation method of the impulse gain for coding vocoder |
GB2326572A (en) | 1997-06-19 | 1998-12-23 | Softsound Limited | Low bit rate audio coder and decoder |
US6073092A (en) * | 1997-06-26 | 2000-06-06 | Telogy Networks, Inc. | Method for speech coding based on a code excited linear prediction (CELP) model |
FI980132A (fi) | 1998-01-21 | 1999-07-22 | Nokia Mobile Phones Ltd | Adaptoituva jälkisuodatin |
US6094629A (en) * | 1998-07-13 | 2000-07-25 | Lockheed Martin Corp. | Speech coding system and method including spectral quantizer |
US6078880A (en) * | 1998-07-13 | 2000-06-20 | Lockheed Martin Corporation | Speech coding system and method including voicing cut off frequency analyzer |
US6173255B1 (en) * | 1998-08-18 | 2001-01-09 | Lockheed Martin Corporation | Synchronized overlap add voice processing using windows and one bit correlators |
US6385573B1 (en) * | 1998-08-24 | 2002-05-07 | Conexant Systems, Inc. | Adaptive tilt compensation for synthesized speech residual |
US6480822B2 (en) | 1998-08-24 | 2002-11-12 | Conexant Systems, Inc. | Low complexity random codebook structure |
US6330533B2 (en) * | 1998-08-24 | 2001-12-11 | Conexant Systems, Inc. | Speech encoder adaptively applying pitch preprocessing with warping of target signal |
US6104992A (en) | 1998-08-24 | 2000-08-15 | Conexant Systems, Inc. | Adaptive gain reduction to produce fixed codebook target signal |
US6507814B1 (en) * | 1998-08-24 | 2003-01-14 | Conexant Systems, Inc. | Pitch determination using speech classification and prior pitch estimation |
US6449590B1 (en) * | 1998-08-24 | 2002-09-10 | Conexant Systems, Inc. | Speech encoder using warping in long term preprocessing |
GB2342829B (en) | 1998-10-13 | 2003-03-26 | Nokia Mobile Phones Ltd | Postfilter |
US6691092B1 (en) * | 1999-04-05 | 2004-02-10 | Hughes Electronics Corporation | Voicing measure as an estimate of signal periodicity for a frequency domain interpolative speech codec system |
US6826527B1 (en) | 1999-11-23 | 2004-11-30 | Texas Instruments Incorporated | Concealment of frame erasures and method |
US6665638B1 (en) | 2000-04-17 | 2003-12-16 | At&T Corp. | Adaptive short-term post-filters for speech coders |
US6584438B1 (en) * | 2000-04-24 | 2003-06-24 | Qualcomm Incorporated | Frame erasure compensation method in a variable rate speech coder |
US6842733B1 (en) * | 2000-09-15 | 2005-01-11 | Mindspeed Technologies, Inc. | Signal processing system for filtering spectral content of a signal for speech coding |
DE60233283D1 (de) * | 2001-02-27 | 2009-09-24 | Texas Instruments Inc | Verschleierungsverfahren bei Verlust von Sprachrahmen und Dekoder dafer |
US7353168B2 (en) | 2001-10-03 | 2008-04-01 | Broadcom Corporation | Method and apparatus to eliminate discontinuities in adaptively filtered signals |
-
2002
- 2002-06-28 US US10/183,418 patent/US7353168B2/en active Active
- 2002-06-28 US US10/183,554 patent/US7512535B2/en not_active Expired - Fee Related
- 2002-08-09 US US10/215,048 patent/US8032363B2/en not_active Expired - Fee Related
- 2002-10-03 EP EP02256895A patent/EP1315150B1/de not_active Expired - Lifetime
- 2002-10-03 DE DE60214814T patent/DE60214814T2/de not_active Expired - Lifetime
- 2002-10-03 DE DE60225400T patent/DE60225400T2/de not_active Expired - Lifetime
- 2002-10-03 EP EP02256894A patent/EP1315149B1/de not_active Expired - Lifetime
- 2002-10-03 EP EP02256896A patent/EP1308932B1/de not_active Expired - Lifetime
- 2002-10-03 DE DE60209861T patent/DE60209861T2/de not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
DE60214814T2 (de) | 2007-09-20 |
DE60225400T2 (de) | 2009-02-26 |
EP1308932A2 (de) | 2003-05-07 |
US20030088408A1 (en) | 2003-05-08 |
EP1315149A3 (de) | 2004-07-14 |
EP1308932A3 (de) | 2004-07-21 |
EP1315150A2 (de) | 2003-05-28 |
US7512535B2 (en) | 2009-03-31 |
EP1315149A2 (de) | 2003-05-28 |
EP1308932B1 (de) | 2008-03-05 |
EP1315149B1 (de) | 2006-09-20 |
US8032363B2 (en) | 2011-10-04 |
EP1315150A3 (de) | 2004-07-21 |
DE60209861T2 (de) | 2007-02-22 |
EP1315150B1 (de) | 2006-03-15 |
US7353168B2 (en) | 2008-04-01 |
DE60209861D1 (de) | 2006-05-11 |
US20030088406A1 (en) | 2003-05-08 |
US20030088405A1 (en) | 2003-05-08 |
DE60214814D1 (de) | 2006-11-02 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition |