DE60030069D1 - Verschleierungsverfahren bei Verlust von Sprachrahmen - Google Patents

Verschleierungsverfahren bei Verlust von Sprachrahmen

Info

Publication number
DE60030069D1
DE60030069D1 DE60030069T DE60030069T DE60030069D1 DE 60030069 D1 DE60030069 D1 DE 60030069D1 DE 60030069 T DE60030069 T DE 60030069T DE 60030069 T DE60030069 T DE 60030069T DE 60030069 D1 DE60030069 D1 DE 60030069D1
Authority
DE
Germany
Prior art keywords
loss
repetitive
speech frames
obfuscation procedure
obfuscation
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
DE60030069T
Other languages
English (en)
Other versions
DE60030069T2 (de
Inventor
Takahiro Unno
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.)
Texas Instruments Inc
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 DE60030069D1 publication Critical patent/DE60030069D1/de
Publication of DE60030069T2 publication Critical patent/DE60030069T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Multimedia (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Computational Linguistics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
  • Laminated Bodies (AREA)
  • Materials For Medical Uses (AREA)
  • Catalysts (AREA)
DE60030069T 1999-11-23 2000-11-22 Verschleierungsverfahren bei Verlust von Sprachrahmen Expired - Lifetime DE60030069T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US16719799P 1999-11-23 1999-11-23
US167197P 1999-11-23

Publications (2)

Publication Number Publication Date
DE60030069D1 true DE60030069D1 (de) 2006-09-28
DE60030069T2 DE60030069T2 (de) 2007-02-22

Family

ID=22606354

Family Applications (1)

Application Number Title Priority Date Filing Date
DE60030069T Expired - Lifetime DE60030069T2 (de) 1999-11-23 2000-11-22 Verschleierungsverfahren bei Verlust von Sprachrahmen

Country Status (4)

Country Link
EP (1) EP1103953B1 (de)
JP (1) JP2001154699A (de)
AT (1) ATE336780T1 (de)
DE (1) DE60030069T2 (de)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6826527B1 (en) * 1999-11-23 2004-11-30 Texas Instruments Incorporated Concealment of frame erasures and method
CA2733453C (en) * 2000-11-30 2014-10-14 Panasonic Corporation Lpc vector quantization apparatus
US7835916B2 (en) 2003-12-19 2010-11-16 Telefonaktiebolaget Lm Ericsson (Publ) Channel signal concealment in multi-channel audio systems
SE527866C2 (sv) * 2003-12-19 2006-06-27 Ericsson Telefon Ab L M Kanalsignalmaskering i multikanalsaudiosystem
JP4846712B2 (ja) * 2005-03-14 2011-12-28 パナソニック株式会社 スケーラブル復号化装置およびスケーラブル復号化方法
WO2010000303A1 (en) * 2008-06-30 2010-01-07 Nokia Corporation Speech decoder with error concealment
JP5111430B2 (ja) * 2009-04-24 2013-01-09 パナソニック株式会社 音声符号化装置、音声復号化装置、及びこれらの方法
CN103988255B (zh) * 2011-10-20 2016-03-02 Lg电子株式会社 管理抖动缓存器的方法和使用其的抖动缓存器
JP5328883B2 (ja) * 2011-12-02 2013-10-30 パナソニック株式会社 Ｃｅｌｐ型音声復号化装置およびｃｅｌｐ型音声復号化方法
JP6516099B2 (ja) * 2015-08-05 2019-05-22 パナソニックＩｐマネジメント株式会社 音声信号復号装置および音声信号復号方法
CN110474815B (zh) * 2019-09-23 2021-08-13 北京达佳互联信息技术有限公司 带宽预测方法、装置、电子设备及存储介质

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2142391C (en) * 1994-03-14 2001-05-29 Juin-Hwey Chen Computational complexity reduction during frame erasure or packet loss
US6085158A (en) * 1995-05-22 2000-07-04 Ntt Mobile Communications Network Inc. Updating internal states of a speech decoder after errors have occurred

Also Published As

Publication number Publication date
DE60030069T2 (de) 2007-02-22
EP1103953A3 (de) 2002-09-11
JP2001154699A (ja) 2001-06-08
EP1103953B1 (de) 2006-08-16
ATE336780T1 (de) 2006-09-15
EP1103953A2 (de) 2001-05-30

Similar Documents

Publication Publication Date Title
DE60233283D1 (de) Verschleierungsverfahren bei Verlust von Sprachrahmen und Dekoder dafer
JP4518714B2 (ja) 音声符号変換方法
EP1288916A3 (de) Verfahren und Vorrichtung zur Verschleierung von Rahmenausfall von prädiktionskodierter Sprache unter Verwendung von Extrapolation der Wellenform
US8688437B2 (en) Packet loss concealment for speech coding
DE60030069D1 (de) Verschleierungsverfahren bei Verlust von Sprachrahmen
MY137264A (en) Method and apparatus for performing reduced rate variable rate vocoding
EP0770990A3 (de) Verfahren und Vorrichtung zur Sprachkodierung und -dekodierung
JP2009239927A (ja) Ｃｄｍａ無線システム用可変ビットレート広帯域音声符号化時における効率のよい帯域内ディム・アンド・バースト（ｄｉｍ−ａｎｄ−ｂｕｒｓｔ）シグナリングとハーフレートマックス処理のための方法および装置
BR9805989B1 (pt) método e aparelho para decodificar um sinal codificado.
DE69613908D1 (de) Stimmhaft/stimmlos-Klassifizierung von Sprache für Sprachdekodierung bei Verlust von Datenrahmen
EP1724756A3 (de) Verschleierung von Paketverslusten für nicht-blockorientierte Sprachkodierer
DE69317958T2 (de) Kodierer von Audiosignalen mit niedriger Verzögerung, unter Verwendung von Analyse-durch-Synthese-Techniken
EP0732686A3 (de) CELP-Kodierung niedriger Verzögerung und 32 kbit/s für ein Breitband-Sprachsignal
KR20060007412A (ko) 가변 비트 레이트 광대역 스피치 음성 코딩시의 이득양자화를 위한 방법 및 장치
BR9602835B1 (pt) processo e aparelho para reproduzir um sinal de voz, e, processo para transmitir o mesmo.
AU2002215138A1 (en) Method and system for speech frame error concealment in speech decoding
HK1060430A1 (en) Method and apparatus for encoding and decoding of unvoiced speech
ATE239966T1 (de) Anwendung von referenzdaten für spracherkennung
KR970076487A (ko) 음성 부호화 장치 및 음성 부호화 복호화 장치
EP1073039A3 (de) Sprachdekoder mit Verarbeitung des Gewinnfaktors
WO1999022561A3 (en) A method and apparatus for audio representation of speech that has been encoded according to the lpc principle, through adding noise to constituent signals therein
EP1617411B1 (de) Codeumsetzungsverfahren und einrichtung
WO2002023537A8 (en) System for enhancing perceptual quality of decoded speech
DE69838465D1 (de) Qualitätsverminderung durch Komprimierung/Dekomprimierung
JP4985743B2 (ja) 音声符号変換方法

Legal Events

Date Code Title Description
8364 No opposition during term of opposition