DE60225400D1 - Verfahren und Vorrichtung zur Verarbeitung eines dekodierten Sprachsignals - Google Patents

Verfahren und Vorrichtung zur Verarbeitung eines dekodierten Sprachsignals

Info

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
Application number
DE60225400T
Other languages
English (en)
Other versions
DE60225400T2 (de
Inventor
Juin-Hwey Chen
Jes Thyssen
Chris C Lee
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Broadcom Corp
Original Assignee
Broadcom Corp
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 Broadcom Corp filed Critical Broadcom Corp
Application granted granted Critical
Publication of DE60225400D1 publication Critical patent/DE60225400D1/de
Publication of DE60225400T2 publication Critical patent/DE60225400T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G10MUSICAL INSTRUMENTS; ACOUSTICS
    • G10LSPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00Speech 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
    • G10L19/04Speech 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
    • G10L19/26Pre-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)
DE60225400T 2001-10-03 2002-10-03 Verfahren und Vorrichtung zur Verarbeitung eines dekodierten Sprachsignals Expired - Lifetime DE60225400T2 (de)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

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

Similar Documents

Publication Publication Date Title
DE60225400D1 (de) Verfahren und Vorrichtung zur Verarbeitung eines dekodierten Sprachsignals
DE60104091D1 (de) Verfahren und Vorrichtung zur Sprachverbesserung in verrauschter Umgebung
DE60123640D1 (de) Verfahren und vorrichtung zur voraussage eines fahrwegs
DE60130810D1 (de) Verfahren und vorrichtung zur verarbeitung eines rahmenorientierten protokols
DE60237007D1 (de) Verfahren und vorrichtung zur kurzfristigen inspekrobustheit
DE60234530D1 (de) Vorrichtung und verfahren zur spracherkennung
DE60309822D1 (de) Verfahren und Vorrichtung zur Spracherkennung
DE60125664D1 (de) Vorrichtung und Verfahren zur Verarbeitung von Klangsignalen
DE60218252D1 (de) Verfahren und Vorrichtung zur Sprachtranskodierung
DE60236693D1 (de) Verfahren und Vorrichtung zur Bildverarbeitung
DE50203544D1 (de) Verfahren und Vorrichtung zur Drehbearbeitung
DE60223581D1 (de) Verfahren und vorrichtung zur bereitstellung von räumlicher verarbeitung in einem ferngerät
DE602004023364D1 (de) Vorrichtung und Verfahren zur Spracherkennung
DE50207563D1 (de) Verfahren und vorrichtung zur überwachung eines signals
DE10194858T1 (de) Verfahren und Vorrichtung zur Bitstromdecodierung
DE602005012563D1 (de) Vorrichtung und Verfahren zur Verarbeitung eines Tonsignals
DE602004014675D1 (de) Verfahren und Vorrichtung zur Spracherkennung
DE60216719D1 (de) System und Verfahren zur Verarbeitung eines Signals
DE60229315D1 (de) Verfahren und Vorrichtung zur Spracherkennung
DE60224005D1 (de) Verfahren und vorrichtung zur verarbeitung von mehreren audiobitströmen
DE50109323D1 (de) Verfahren und vorrichtung zur spracherkennung
DE60207500D1 (de) Verfahren und Vorrichtung zur identifizierung eines Sprachanrufers
DE60217612D1 (de) Verfahren und Vorrichtung zur Kodierung und Dekodierung von Sprachsignalen
DE60205421D1 (de) Verfahren und Vorrichtung zur Sprachsynthese
DE60141320D1 (de) Verfahren und Gerät zur Verarbeitung eines digitalen Audiosignals

Legal Events

Date Code Title Description
8364 No opposition during term of opposition