BRPI0923850A2 - Método e aparelho para a geração de uma camada de melhoramento em um sistema de codificação de áudio de canal múltiplo. - Google Patents

Método e aparelho para a geração de uma camada de melhoramento em um sistema de codificação de áudio de canal múltiplo.

Info

Publication number
BRPI0923850A2
BRPI0923850A2 BRPI0923850-6A BRPI0923850A BRPI0923850A2 BR PI0923850 A2 BRPI0923850 A2 BR PI0923850A2 BR PI0923850 A BRPI0923850 A BR PI0923850A BR PI0923850 A2 BRPI0923850 A2 BR PI0923850A2
Authority
BR
Brazil
Prior art keywords
generating
enhancement layer
channel audio
coding system
audio coding
Prior art date
Application number
BRPI0923850-6A
Other languages
English (en)
Inventor
James P Ashley
Udar Mittal
Original Assignee
Motorola Mobility 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=41716337&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=BRPI0923850(A2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Motorola Mobility Inc filed Critical Motorola Mobility Inc
Publication of BRPI0923850A2 publication Critical patent/BRPI0923850A2/pt
Publication of BRPI0923850A8 publication Critical patent/BRPI0923850A8/pt
Publication of BRPI0923850B1 publication Critical patent/BRPI0923850B1/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
    • G10L19/005—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
    • G10L19/16—Vocoder architecture
    • G10L19/18—Vocoders using multiple modes
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M7/00—Conversion of a code where information is represented by a given sequence or number of digits to a code where the same, similar or subset of information is represented by a different sequence or number of digits
    • H03M7/30—Compression; Expansion; Suppression of unnecessary data, e.g. redundancy reduction
    • 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
    • G10L19/008—Multichannel audio signal coding or decoding using interchannel correlation to reduce redundancy, e.g. joint-stereo, intensity-coding or matrixing

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Human Computer Interaction (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Computational Linguistics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Quality & Reliability (AREA)
  • Mathematical Physics (AREA)
  • Theoretical Computer Science (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Stereophonic System (AREA)
BRPI0923850-6A 2008-12-29 2009-12-03 Aparelho que decodifica um sinal de áudio de canal múltiplo e método para a decodificação e codificação de um sinal de áudio de canal múltiplo BRPI0923850B1 (pt)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US12/345,117 US8219408B2 (en) 2008-12-29 2008-12-29 Audio signal decoder and method for producing a scaled reconstructed audio signal
US12/345,117 2008-12-29
PCT/US2009/066616 WO2010077556A1 (en) 2008-12-29 2009-12-03 Method and apparatus for generating an enhancement layer within a multiple-channel audio coding system

Publications (3)

Publication Number Publication Date
BRPI0923850A2 true BRPI0923850A2 (pt) 2015-07-28
BRPI0923850A8 BRPI0923850A8 (pt) 2017-07-11
BRPI0923850B1 BRPI0923850B1 (pt) 2020-03-24

Family

ID=41716337

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0923850-6A BRPI0923850B1 (pt) 2008-12-29 2009-12-03 Aparelho que decodifica um sinal de áudio de canal múltiplo e método para a decodificação e codificação de um sinal de áudio de canal múltiplo

Country Status (7)

Country Link
US (1) US8219408B2 (pt)
EP (1) EP2382622B1 (pt)
KR (1) KR101274827B1 (pt)
CN (1) CN102272829B (pt)
BR (1) BRPI0923850B1 (pt)
ES (1) ES2434251T3 (pt)
WO (1) WO2010077556A1 (pt)

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WO2014005327A1 (zh) * 2012-07-06 2014-01-09 深圳广晟信源技术有限公司 对多声道数字音频编码的方法
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Also Published As

Publication number Publication date
US20100169099A1 (en) 2010-07-01
CN102272829A (zh) 2011-12-07
EP2382622A1 (en) 2011-11-02
EP2382622B1 (en) 2013-09-25
BRPI0923850B1 (pt) 2020-03-24
BRPI0923850A8 (pt) 2017-07-11
ES2434251T3 (es) 2013-12-16
WO2010077556A1 (en) 2010-07-08
KR101274827B1 (ko) 2013-06-13
KR20110111443A (ko) 2011-10-11
US8219408B2 (en) 2012-07-10
CN102272829B (zh) 2013-07-31

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