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DE60144259D1 - Glättung von Diskontinuitäten zwischen Sprachrahmen - Google Patents

Glättung von Diskontinuitäten zwischen Sprachrahmen

Info

Publication number
DE60144259D1
DE60144259D1 DE60144259T DE60144259T DE60144259D1 DE 60144259 D1 DE60144259 D1 DE 60144259D1 DE 60144259 T DE60144259 T DE 60144259T DE 60144259 T DE60144259 T DE 60144259T DE 60144259 D1 DE60144259 D1 DE 60144259D1
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
DE60144259T
Other languages
English (en)
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 DE60144259D1 publication Critical patent/DE60144259D1/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)
  • Computational Linguistics (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Multimedia (AREA)
  • Physics & Mathematics (AREA)
  • Quality & Reliability (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
  • Stereophonic System (AREA)
  • Devices For Executing Special Programs (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
  • Analogue/Digital Conversion (AREA)
DE60144259T 2000-04-24 2001-04-18 Glättung von Diskontinuitäten zwischen Sprachrahmen Expired - Lifetime DE60144259D1 (de)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
DE60144259D1 true DE60144259D1 (de) 2011-04-28

Family

ID=24224779

Family Applications (2)

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

Family Applications After (1)

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

Country Status (13)

Country Link
US (1) US6584438B1 (de)
EP (3) EP1276832B1 (de)
JP (1) JP4870313B2 (de)
KR (1) KR100805983B1 (de)
CN (1) CN1223989C (de)
AT (2) ATE368278T1 (de)
AU (1) AU2001257102A1 (de)
BR (1) BR0110252A (de)
DE (2) DE60144259D1 (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
EP1850326A2 (de) 2007-10-31
CN1432175A (zh) 2003-07-23
DE60129544T2 (de) 2008-04-17
ATE368278T1 (de) 2007-08-15
EP2099028A1 (de) 2009-09-09
TW519615B (en) 2003-02-01
KR100805983B1 (ko) 2008-02-25
WO2001082289A2 (en) 2001-11-01
AU2001257102A1 (en) 2001-11-07
HK1055174A1 (en) 2003-12-24
EP1850326A3 (de) 2007-12-05
EP2099028B1 (de) 2011-03-16
CN1223989C (zh) 2005-10-19
DE60129544D1 (de) 2007-09-06
EP1276832A2 (de) 2003-01-22
JP2004501391A (ja) 2004-01-15
JP4870313B2 (ja) 2012-02-08
ES2288950T3 (es) 2008-02-01
ATE502379T1 (de) 2011-04-15
BR0110252A (pt) 2004-06-29
ES2360176T3 (es) 2011-06-01
EP1276832B1 (de) 2007-07-25
WO2001082289A3 (en) 2002-01-10
US6584438B1 (en) 2003-06-24
KR20020093940A (ko) 2002-12-16

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