TWI349927B - Method and apparatus for encoding and decoding audio signals - Google Patents

Method and apparatus for encoding and decoding audio signals

Info

Publication number
TWI349927B
TWI349927B TW096137932A TW96137932A TWI349927B TW I349927 B TWI349927 B TW I349927B TW 096137932 A TW096137932 A TW 096137932A TW 96137932 A TW96137932 A TW 96137932A TW I349927 B TWI349927 B TW I349927B
Authority
TW
Taiwan
Prior art keywords
encoding
audio signals
decoding audio
decoding
signals
Prior art date
Application number
TW096137932A
Other languages
English (en)
Other versions
TW200839741A (en
Inventor
Venkatesh Krishnan
Vivek Rajendran
Ananthapadmanabhan A Kandhadai
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
Publication of TW200839741A publication Critical patent/TW200839741A/zh
Application granted granted Critical
Publication of TWI349927B publication Critical patent/TWI349927B/zh

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
    • G10L19/04—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
    • G10L19/16—Vocoder architecture
    • G10L19/18—Vocoders using multiple modes
    • G10L19/20—Vocoders using multiple modes using sound class specific coding, hybrid encoders or object based coding
    • 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
    • G10L19/16—Vocoder architecture
    • G10L19/18—Vocoders using multiple modes
    • 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
    • G10L19/12—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
    • 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
    • G10L19/16—Vocoder architecture
    • G10L19/18—Vocoders using multiple modes
    • G10L19/22—Mode decision, i.e. based on audio signal content versus external parameters

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)
TW096137932A 2006-10-10 2007-10-09 Method and apparatus for encoding and decoding audio signals TWI349927B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US82881606P 2006-10-10 2006-10-10
US94298407P 2007-06-08 2007-06-08

Publications (2)

Publication Number Publication Date
TW200839741A TW200839741A (en) 2008-10-01
TWI349927B true TWI349927B (en) 2011-10-01

Family

ID=38870234

Family Applications (1)

Application Number Title Priority Date Filing Date
TW096137932A TWI349927B (en) 2006-10-10 2007-10-09 Method and apparatus for encoding and decoding audio signals

Country Status (10)

Country Link
US (1) US9583117B2 (zh)
EP (2) EP2458588A3 (zh)
JP (1) JP5096474B2 (zh)
KR (1) KR101186133B1 (zh)
CN (1) CN101523486B (zh)
BR (1) BRPI0719886A2 (zh)
CA (1) CA2663904C (zh)
RU (1) RU2426179C2 (zh)
TW (1) TWI349927B (zh)
WO (1) WO2008045846A1 (zh)

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Also Published As

Publication number Publication date
KR20090074070A (ko) 2009-07-03
EP2458588A3 (en) 2012-07-04
WO2008045846A1 (en) 2008-04-17
CN101523486B (zh) 2013-08-14
EP2458588A2 (en) 2012-05-30
BRPI0719886A2 (pt) 2014-05-06
US9583117B2 (en) 2017-02-28
US20090187409A1 (en) 2009-07-23
CA2663904C (en) 2014-05-27
JP5096474B2 (ja) 2012-12-12
CA2663904A1 (en) 2008-04-17
JP2010506239A (ja) 2010-02-25
CN101523486A (zh) 2009-09-02
EP2092517B1 (en) 2012-07-18
RU2009117663A (ru) 2010-11-20
RU2426179C2 (ru) 2011-08-10
KR101186133B1 (ko) 2012-09-27
EP2092517A1 (en) 2009-08-26
TW200839741A (en) 2008-10-01

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