BRPI0719886A2 - Método e equipamento para codificação e decodificação de sinais de áudio - Google Patents

Método e equipamento para codificação e decodificação de sinais de áudio

Info

Publication number
BRPI0719886A2
BRPI0719886A2 BRPI0719886-8A2A BRPI0719886A BRPI0719886A2 BR PI0719886 A2 BRPI0719886 A2 BR PI0719886A2 BR PI0719886 A BRPI0719886 A BR PI0719886A BR PI0719886 A2 BRPI0719886 A2 BR PI0719886A2
Authority
BR
Brazil
Prior art keywords
decoding
equipment
audio signal
signal encoding
encoding
Prior art date
Application number
BRPI0719886-8A2A
Other languages
English (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 BRPI0719886A2 publication Critical patent/BRPI0719886A2/pt

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)
BRPI0719886-8A2A 2006-10-10 2007-10-08 Método e equipamento para codificação e decodificação de sinais de áudio BRPI0719886A2 (pt)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US82881606P 2006-10-10 2006-10-10
US94298407P 2007-06-08 2007-06-08
PCT/US2007/080744 WO2008045846A1 (en) 2006-10-10 2007-10-08 Method and apparatus for encoding and decoding audio signals

Publications (1)

Publication Number Publication Date
BRPI0719886A2 true BRPI0719886A2 (pt) 2014-05-06

Family

ID=38870234

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0719886-8A2A BRPI0719886A2 (pt) 2006-10-10 2007-10-08 Método e equipamento para codificação e decodificação de sinais de áudio

Country Status (10)

Country Link
US (1) US9583117B2 (pt)
EP (2) EP2092517B1 (pt)
JP (1) JP5096474B2 (pt)
KR (1) KR101186133B1 (pt)
CN (1) CN101523486B (pt)
BR (1) BRPI0719886A2 (pt)
CA (1) CA2663904C (pt)
RU (1) RU2426179C2 (pt)
TW (1) TWI349927B (pt)
WO (1) WO2008045846A1 (pt)

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Also Published As

Publication number Publication date
CA2663904C (en) 2014-05-27
RU2426179C2 (ru) 2011-08-10
KR20090074070A (ko) 2009-07-03
US9583117B2 (en) 2017-02-28
EP2458588A3 (en) 2012-07-04
TW200839741A (en) 2008-10-01
TWI349927B (en) 2011-10-01
CN101523486A (zh) 2009-09-02
RU2009117663A (ru) 2010-11-20
CN101523486B (zh) 2013-08-14
CA2663904A1 (en) 2008-04-17
WO2008045846A1 (en) 2008-04-17
EP2092517B1 (en) 2012-07-18
KR101186133B1 (ko) 2012-09-27
EP2092517A1 (en) 2009-08-26
JP2010506239A (ja) 2010-02-25
US20090187409A1 (en) 2009-07-23
EP2458588A2 (en) 2012-05-30
JP5096474B2 (ja) 2012-12-12

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