ATE439666T1 - Verschleierungsverfahren bei verlust von sprachrahmen und dekoder dafer - Google Patents

Verschleierungsverfahren bei verlust von sprachrahmen und dekoder dafer

Info

Publication number
ATE439666T1
ATE439666T1 AT02100190T AT02100190T ATE439666T1 AT E439666 T1 ATE439666 T1 AT E439666T1 AT 02100190 T AT02100190 T AT 02100190T AT 02100190 T AT02100190 T AT 02100190T AT E439666 T1 ATE439666 T1 AT E439666T1
Authority
AT
Austria
Prior art keywords
decoder
occasioning
loss
case
voice frame
Prior art date
Application number
AT02100190T
Other languages
English (en)
Inventor
Takahiro Unno
Original Assignee
Texas Instruments Inc
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 Texas Instruments Inc filed Critical Texas Instruments Inc
Application granted granted Critical
Publication of ATE439666T1 publication Critical patent/ATE439666T1/de

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
    • G10L19/005—Correction of errors induced by the transmission channel, if related to the coding algorithm
    • 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
    • G10L19/08—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters
    • G10L19/12—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters the excitation function being a code excitation, e.g. in code excited linear prediction [CELP] 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
    • G10L2019/0001—Codebooks
    • G10L2019/0011—Long term prediction filters, i.e. pitch estimation
    • 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
    • G10L2019/0001—Codebooks
    • G10L2019/0012—Smoothing of parameters of the decoder interpolation
    • 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
    • G10L25/93—Discriminating between voiced and unvoiced parts of speech signals
    • G10L2025/935—Mixed voiced class; Transitions

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)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
  • Communication Control (AREA)
  • Air Bags (AREA)
AT02100190T 2001-02-27 2002-02-26 Verschleierungsverfahren bei verlust von sprachrahmen und dekoder dafer ATE439666T1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US27166501P 2001-02-27 2001-02-27

Publications (1)

Publication Number Publication Date
ATE439666T1 true ATE439666T1 (de) 2009-08-15

Family

ID=23036537

Family Applications (1)

Application Number Title Priority Date Filing Date
AT02100190T ATE439666T1 (de) 2001-02-27 2002-02-26 Verschleierungsverfahren bei verlust von sprachrahmen und dekoder dafer

Country Status (5)

Country Link
US (1) US7587315B2 (de)
EP (1) EP1235203B1 (de)
JP (1) JP2002328700A (de)
AT (1) ATE439666T1 (de)
DE (1) DE60233283D1 (de)

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RU2316059C2 (ru) 2003-05-01 2008-01-27 Нокиа Корпорейшн Способ и устройство для квантования усиления в широкополосном речевом кодировании с переменной битовой скоростью передачи
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US7835916B2 (en) * 2003-12-19 2010-11-16 Telefonaktiebolaget Lm Ericsson (Publ) Channel signal concealment in multi-channel audio systems
JP4698593B2 (ja) * 2004-07-20 2011-06-08 パナソニック株式会社 音声復号化装置および音声復号化方法
US7752039B2 (en) * 2004-11-03 2010-07-06 Nokia Corporation Method and device for low bit rate speech coding
US7177804B2 (en) * 2005-05-31 2007-02-13 Microsoft Corporation Sub-band voice codec with multi-stage codebooks and redundant coding
US7805297B2 (en) 2005-11-23 2010-09-28 Broadcom Corporation Classification-based frame loss concealment for audio signals
KR100900438B1 (ko) * 2006-04-25 2009-06-01 삼성전자주식회사 음성 패킷 복구 장치 및 방법
CN1983909B (zh) * 2006-06-08 2010-07-28 华为技术有限公司 一种丢帧隐藏装置和方法
US8255213B2 (en) * 2006-07-12 2012-08-28 Panasonic Corporation Speech decoding apparatus, speech encoding apparatus, and lost frame concealment method
WO2008022181A2 (en) * 2006-08-15 2008-02-21 Broadcom Corporation Updating of decoder states after packet loss concealment
US7877253B2 (en) 2006-10-06 2011-01-25 Qualcomm Incorporated Systems, methods, and apparatus for frame erasure recovery
CN102682774B (zh) * 2006-11-10 2014-10-08 松下电器（美国）知识产权公司 参数解码方法及参数解码装置
US20080120098A1 (en) * 2006-11-21 2008-05-22 Nokia Corporation Complexity Adjustment for a Signal Encoder
KR20080075050A (ko) * 2007-02-10 2008-08-14 삼성전자주식회사 오류 프레임의 파라미터 갱신 방법 및 장치
US8165224B2 (en) * 2007-03-22 2012-04-24 Research In Motion Limited Device and method for improved lost frame concealment
US20100227338A1 (en) * 2007-03-22 2010-09-09 Nanologix, Inc. Method and Apparatus for Rapid Detection and Identification of Live Microorganisms Immobilized On Permeable Membrane by Antibodies
WO2008139270A1 (en) * 2007-05-14 2008-11-20 Freescale Semiconductor, Inc. Generating a frame of audio data
US20090055171A1 (en) * 2007-08-20 2009-02-26 Broadcom Corporation Buzz reduction for low-complexity frame erasure concealment
CN100550712C (zh) * 2007-11-05 2009-10-14 华为技术有限公司 一种信号处理方法和处理装置
KR100998396B1 (ko) * 2008-03-20 2010-12-03 광주과학기술원 프레임 손실 은닉 방법, 프레임 손실 은닉 장치 및 음성송수신 장치
JP2009253348A (ja) * 2008-04-01 2009-10-29 Alps Electric Co Ltd データ処理方法及びデータ処理装置
US8214201B2 (en) * 2008-11-19 2012-07-03 Cambridge Silicon Radio Limited Pitch range refinement
US9263049B2 (en) * 2010-10-25 2016-02-16 Polycom, Inc. Artifact reduction in packet loss concealment
EP3686888B1 (de) * 2011-02-15 2025-04-02 VoiceAge EVS LLC Vorrichtung und verfahren zur quantisierung der verstärkung von adaptiven und festen beiträgen der anregung in einem celp-koder-dekoder
US9626982B2 (en) 2011-02-15 2017-04-18 Voiceage Corporation Device and method for quantizing the gains of the adaptive and fixed contributions of the excitation in a CELP codec
US9123328B2 (en) * 2012-09-26 2015-09-01 Google Technology Holdings LLC Apparatus and method for audio frame loss recovery
KR20140067512A (ko) * 2012-11-26 2014-06-05 삼성전자주식회사 신호 처리 장치 및 그 신호 처리 방법
US9842598B2 (en) * 2013-02-21 2017-12-12 Qualcomm Incorporated Systems and methods for mitigating potential frame instability
WO2014202784A1 (en) * 2013-06-21 2014-12-24 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Apparatus and method for improved signal fade out for switched audio coding systems during error concealment
CN104934035B (zh) 2014-03-21 2017-09-26 华为技术有限公司 语音频码流的解码方法及装置
CN108011686B (zh) * 2016-10-31 2020-07-14 腾讯科技（深圳）有限公司 信息编码帧丢失恢复方法和装置
US10763885B2 (en) 2018-11-06 2020-09-01 Stmicroelectronics S.R.L. Method of error concealment, and associated device
EP4682877A3 (de) 2020-06-11 2026-03-04 Dolby International AB Verschleierung von rahmenverlusten für einen niederfrequenzeffektkanal

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Also Published As

Publication number Publication date
EP1235203B1 (de) 2009-08-12
JP2002328700A (ja) 2002-11-15
EP1235203A2 (de) 2002-08-28
DE60233283D1 (de) 2009-09-24
US7587315B2 (en) 2009-09-08
EP1235203A3 (de) 2002-09-11
US20020123887A1 (en) 2002-09-05

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