DE60129544D1 - Kompensationsverfahren bei rahmenauslöschung in einem sprachkodierer mit veränderlicher datenrate - Google Patents

Kompensationsverfahren bei rahmenauslöschung in einem sprachkodierer mit veränderlicher datenrate

Info

Publication number
DE60129544D1
DE60129544D1 DE60129544T DE60129544T DE60129544D1 DE 60129544 D1 DE60129544 D1 DE 60129544D1 DE 60129544 T DE60129544 T DE 60129544T DE 60129544 T DE60129544 T DE 60129544T DE 60129544 D1 DE60129544 D1 DE 60129544D1
Authority
DE
Germany
Prior art keywords
lag value
pitch lag
frame
previous frame
delta
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
DE60129544T
Other languages
English (en)
Other versions
DE60129544T2 (de
Inventor
Sharath Manjunath
Penjung Huang
Eddie-Lun Tik Choy
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.)
Qualcomm Inc
Original Assignee
Qualcomm 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 Qualcomm Inc filed Critical Qualcomm Inc
Application granted granted Critical
Publication of DE60129544D1 publication Critical patent/DE60129544D1/de
Publication of DE60129544T2 publication Critical patent/DE60129544T2/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
    • G10L21/00—Speech or voice signal processing techniques to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
    • G10L21/02—Speech enhancement, e.g. noise reduction or echo cancellation
    • 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
    • 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
    • G10L19/097—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters using prototype waveform decomposition or prototype waveform interpolative [PWI] coders

Landscapes

  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • Computational Linguistics (AREA)
  • Quality & Reliability (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
  • Stereophonic System (AREA)
  • Devices For Executing Special Programs (AREA)
  • Analogue/Digital Conversion (AREA)
DE60129544T 2000-04-24 2001-04-18 Kompensationsverfahren bei rahmenauslöschung in einem sprachkodierer mit veränderlicher datenrate Expired - Lifetime DE60129544T2 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US09/557,283 US6584438B1 (en) 2000-04-24 2000-04-24 Frame erasure compensation method in a variable rate speech coder
US557283 2000-04-24
PCT/US2001/012665 WO2001082289A2 (en) 2000-04-24 2001-04-18 Frame erasure compensation method in a variable rate speech coder

Publications (2)

Publication Number Publication Date
DE60129544D1 true DE60129544D1 (de) 2007-09-06
DE60129544T2 DE60129544T2 (de) 2008-04-17

Family

ID=24224779

Family Applications (2)

Application Number Title Priority Date Filing Date
DE60129544T Expired - Lifetime DE60129544T2 (de) 2000-04-24 2001-04-18 Kompensationsverfahren bei rahmenauslöschung in einem sprachkodierer mit veränderlicher datenrate
DE60144259T Expired - Lifetime DE60144259D1 (de) 2000-04-24 2001-04-18 Glättung von Diskontinuitäten zwischen Sprachrahmen

Family Applications After (1)

Application Number Title Priority Date Filing Date
DE60144259T Expired - Lifetime DE60144259D1 (de) 2000-04-24 2001-04-18 Glättung von Diskontinuitäten zwischen Sprachrahmen

Country Status (13)

Country Link
US (1) US6584438B1 (de)
EP (3) EP2099028B1 (de)
JP (1) JP4870313B2 (de)
KR (1) KR100805983B1 (de)
CN (1) CN1223989C (de)
AT (2) ATE502379T1 (de)
AU (1) AU2001257102A1 (de)
BR (1) BR0110252A (de)
DE (2) DE60129544T2 (de)
ES (2) ES2288950T3 (de)
HK (1) HK1055174A1 (de)
TW (1) TW519615B (de)
WO (1) WO2001082289A2 (de)

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Also Published As

Publication number Publication date
TW519615B (en) 2003-02-01
JP4870313B2 (ja) 2012-02-08
AU2001257102A1 (en) 2001-11-07
US6584438B1 (en) 2003-06-24
BR0110252A (pt) 2004-06-29
DE60144259D1 (de) 2011-04-28
EP1850326A3 (de) 2007-12-05
CN1432175A (zh) 2003-07-23
ES2360176T3 (es) 2011-06-01
DE60129544T2 (de) 2008-04-17
EP1850326A2 (de) 2007-10-31
HK1055174A1 (en) 2003-12-24
CN1223989C (zh) 2005-10-19
EP2099028A1 (de) 2009-09-09
JP2004501391A (ja) 2004-01-15
ATE502379T1 (de) 2011-04-15
EP2099028B1 (de) 2011-03-16
KR20020093940A (ko) 2002-12-16
EP1276832B1 (de) 2007-07-25
EP1276832A2 (de) 2003-01-22
KR100805983B1 (ko) 2008-02-25
ES2288950T3 (es) 2008-02-01
ATE368278T1 (de) 2007-08-15
WO2001082289A3 (en) 2002-01-10
WO2001082289A2 (en) 2001-11-01

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