BRPI0909487A2 - método e aparelho para codificação seletiva de sinal baseada na peformance do codificador básico - Google Patents

método e aparelho para codificação seletiva de sinal baseada na peformance do codificador básico

Info

Publication number
BRPI0909487A2
BRPI0909487A2 BRPI0909487A BRPI0909487A BRPI0909487A2 BR PI0909487 A2 BRPI0909487 A2 BR PI0909487A2 BR PI0909487 A BRPI0909487 A BR PI0909487A BR PI0909487 A BRPI0909487 A BR PI0909487A BR PI0909487 A2 BRPI0909487 A2 BR PI0909487A2
Authority
BR
Brazil
Prior art keywords
signal encoding
encoding based
selective signal
basic encoder
encoder performance
Prior art date
Application number
BRPI0909487A
Other languages
English (en)
Inventor
P Ashley James
Alastair Gibbs Jonathan
Mittal Udar
Original Assignee
Motorola 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 Motorola Inc filed Critical Motorola Inc
Publication of BRPI0909487A2 publication Critical patent/BRPI0909487A2/pt
Publication of BRPI0909487A8 publication Critical patent/BRPI0909487A8/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
    • G10L19/24—Variable rate codecs, e.g. for generating different qualities using a scalable representation such as hierarchical encoding or layered encoding
    • 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)
  • Quality & Reliability (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)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
BRPI0909487A 2008-04-09 2009-04-09 Método e aparelho para codificação seletiva de sinal baseada na peformance do codificador de núcleo BRPI0909487A8 (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US12/099,842 US8639519B2 (en) 2008-04-09 2008-04-09 Method and apparatus for selective signal coding based on core encoder performance
PCT/US2009/039984 WO2009126759A1 (en) 2008-04-09 2009-04-09 Method and apparatus for selective signal coding based on core encoder performance

Publications (2)

Publication Number Publication Date
BRPI0909487A2 true BRPI0909487A2 (pt) 2017-10-17
BRPI0909487A8 BRPI0909487A8 (pt) 2018-04-03

Family

ID=40909774

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0909487A BRPI0909487A8 (pt) 2008-04-09 2009-04-09 Método e aparelho para codificação seletiva de sinal baseada na peformance do codificador de núcleo

Country Status (9)

Country Link
US (1) US8639519B2 (pt)
EP (1) EP2272063B1 (pt)
KR (1) KR101317530B1 (pt)
CN (1) CN102047325A (pt)
BR (1) BRPI0909487A8 (pt)
ES (1) ES2396481T3 (pt)
MX (1) MX2010011111A (pt)
RU (1) RU2504026C2 (pt)
WO (1) WO2009126759A1 (pt)

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Also Published As

Publication number Publication date
BRPI0909487A8 (pt) 2018-04-03
EP2272063B1 (en) 2012-11-28
CN102047325A (zh) 2011-05-04
US20090259477A1 (en) 2009-10-15
ES2396481T3 (es) 2013-02-21
RU2504026C2 (ru) 2014-01-10
MX2010011111A (es) 2011-02-23
KR20110002088A (ko) 2011-01-06
US8639519B2 (en) 2014-01-28
KR101317530B1 (ko) 2013-10-15
EP2272063A1 (en) 2011-01-12
WO2009126759A1 (en) 2009-10-15
RU2010145274A (ru) 2012-05-20

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