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 OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; 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 OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; 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 OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; 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 OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; 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 OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; 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
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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CN1989548B (zh) * 2004-07-20 2010-12-08 松下电器产业株式会社 语音解码装置及补偿帧生成方法
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
US8000960B2 (en) 2006-08-15 2011-08-16 Broadcom Corporation Packet loss concealment for sub-band predictive coding based on extrapolation of sub-band audio waveforms
US7877253B2 (en) 2006-10-06 2011-01-25 Qualcomm Incorporated Systems, methods, and apparatus for frame erasure recovery
EP2538406B1 (de) * 2006-11-10 2015-03-11 Panasonic Intellectual Property Corporation of America Verfahren und Vorrichtung zum Dekodieren eines Parameters eines CELP-kodierten Sprachsignals
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
US8468024B2 (en) * 2007-05-14 2013-06-18 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
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
HUE052882T2 (hu) * 2011-02-15 2021-06-28 Voiceage Evs Llc Készülék és módszer egy celp kódoló-dekódoló adaptív és állandó mértékû gerjesztésének az erõsítéshez való hozzájárulásának számszerûsítésére
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
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CN107369455B (zh) 2014-03-21 2020-12-15 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
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Also Published As

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

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