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BRPI1009467A2 - codificação estéreo avançada baseada em uma combinação de codificação esteréo esquerda/direita ou central/lateral selecionável adaptativamente e de codificação estéreo paramétrica. - Google Patents

codificação estéreo avançada baseada em uma combinação de codificação esteréo esquerda/direita ou central/lateral selecionável adaptativamente e de codificação estéreo paramétrica.

Info

Publication number
BRPI1009467A2
BRPI1009467A2 BRPI1009467A BRPI1009467A BRPI1009467A2 BR PI1009467 A2 BRPI1009467 A2 BR PI1009467A2 BR PI1009467 A BRPI1009467 A BR PI1009467A BR PI1009467 A BRPI1009467 A BR PI1009467A BR PI1009467 A2 BRPI1009467 A2 BR PI1009467A2
Authority
BR
Brazil
Prior art keywords
stereo coding
adaptive
center
combination
advanced
Prior art date
Application number
BRPI1009467A
Other languages
English (en)
Inventor
Purnhagen Heiko
Kjörling Kristofer
Carlsson Pontus
Original Assignee
Dolby Int Ab
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=42562759&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=BRPI1009467(A2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Dolby Int Ab filed Critical Dolby Int Ab
Priority to BR122019023924-0A priority Critical patent/BR122019023924B1/pt
Priority to BR122019023947-9A priority patent/BR122019023947B1/pt
Priority to BR122019023877-4A priority patent/BR122019023877B1/pt
Publication of BRPI1009467A2 publication Critical patent/BRPI1009467A2/pt
Publication of BRPI1009467B1 publication Critical patent/BRPI1009467B1/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
    • G10L19/002—Dynamic bit allocation
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S3/00—Systems employing more than two channels, e.g. quadraphonic
    • H04S3/02—Systems employing more than two channels, e.g. quadraphonic of the matrix type, i.e. in which input signals are combined algebraically, e.g. after having been phase shifted with respect to each other
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S5/00—Pseudo-stereo systems, e.g. in which additional channel signals are derived from monophonic signals by means of phase shifting, time delay or reverberation 
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S5/00—Pseudo-stereo systems, e.g. in which additional channel signals are derived from monophonic signals by means of phase shifting, time delay or reverberation 
    • H04S5/005—Pseudo-stereo systems, e.g. in which additional channel signals are derived from monophonic signals by means of phase shifting, time delay or reverberation  of the pseudo five- or more-channel type, e.g. virtual surround
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S5/00—Pseudo-stereo systems, e.g. in which additional channel signals are derived from monophonic signals by means of phase shifting, time delay or reverberation 
    • H04S5/02—Pseudo-stereo systems, e.g. in which additional channel signals are derived from monophonic signals by means of phase shifting, time delay or reverberation  of the pseudo four-channel type, e.g. in which rear channel signals are derived from two-channel stereo signals
    • 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
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S2400/00—Details of stereophonic systems covered by H04S but not provided for in its groups
    • H04S2400/01—Multi-channel, i.e. more than two input channels, sound reproduction with two speakers wherein the multi-channel information is substantially preserved
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S2400/00—Details of stereophonic systems covered by H04S but not provided for in its groups
    • H04S2400/03—Aspects of down-mixing multi-channel audio to configurations with lower numbers of playback channels, e.g. 7.1 -> 5.1
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S2420/00—Techniques used stereophonic systems covered by H04S but not provided for in its groups
    • H04S2420/03—Application of parametric coding in stereophonic audio systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Mathematical Physics (AREA)
  • Multimedia (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Health & Medical Sciences (AREA)
  • Computational Linguistics (AREA)
  • Algebra (AREA)
  • General Physics & Mathematics (AREA)
  • Mathematical Analysis (AREA)
  • Mathematical Optimization (AREA)
  • Pure & Applied Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Stereophonic System (AREA)
BRPI1009467-9A 2009-03-17 2010-03-05 Sistema codificador, sistema decodificador, método para codificar um sinal estéreo para um sinal de fluxo de bits e método para decodificar um sinal de fluxo de bits para um sinal estéreo BRPI1009467B1 (pt)

Priority Applications (3)

Application Number Priority Date Filing Date Title
BR122019023924-0A BR122019023924B1 (pt) 2009-03-17 2010-03-05 Sistema codificador, sistema decodificador, método para codificar um sinal estéreo para um sinal de fluxo de bits e método para decodificar um sinal de fluxo de bits para um sinal estéreo
BR122019023947-9A BR122019023947B1 (pt) 2009-03-17 2010-03-05 Sistema codificador, sistema decodificador, método para codificar um sinal estéreo para um sinal de fluxo de bits e método para decodificar um sinal de fluxo de bits para um sinal estéreo
BR122019023877-4A BR122019023877B1 (pt) 2009-03-17 2010-03-05 Sistema codificador, sistema decodificador, método para codificar um sinal estéreo para um sinal de fluxo de bits e método para decodificar um sinal de fluxo de bits para um sinal estéreo

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US16070709P 2009-03-17 2009-03-17
US61/160,707 2009-03-17
US21948409P 2009-06-23 2009-06-23
US61/219,484 2009-06-23
PCT/EP2010/052866 WO2010105926A2 (en) 2009-03-17 2010-03-05 Advanced stereo coding based on a combination of adaptively selectable left/right or mid/side stereo coding and of parametric stereo coding

Publications (2)

Publication Number Publication Date
BRPI1009467A2 true BRPI1009467A2 (pt) 2017-05-16
BRPI1009467B1 BRPI1009467B1 (pt) 2020-08-18

Family

ID=42562759

Family Applications (4)

Application Number Title Priority Date Filing Date
BR122019023924-0A BR122019023924B1 (pt) 2009-03-17 2010-03-05 Sistema codificador, sistema decodificador, método para codificar um sinal estéreo para um sinal de fluxo de bits e método para decodificar um sinal de fluxo de bits para um sinal estéreo
BR122019023947-9A BR122019023947B1 (pt) 2009-03-17 2010-03-05 Sistema codificador, sistema decodificador, método para codificar um sinal estéreo para um sinal de fluxo de bits e método para decodificar um sinal de fluxo de bits para um sinal estéreo
BR122019023877-4A BR122019023877B1 (pt) 2009-03-17 2010-03-05 Sistema codificador, sistema decodificador, método para codificar um sinal estéreo para um sinal de fluxo de bits e método para decodificar um sinal de fluxo de bits para um sinal estéreo
BRPI1009467-9A BRPI1009467B1 (pt) 2009-03-17 2010-03-05 Sistema codificador, sistema decodificador, método para codificar um sinal estéreo para um sinal de fluxo de bits e método para decodificar um sinal de fluxo de bits para um sinal estéreo

Family Applications Before (3)

Application Number Title Priority Date Filing Date
BR122019023924-0A BR122019023924B1 (pt) 2009-03-17 2010-03-05 Sistema codificador, sistema decodificador, método para codificar um sinal estéreo para um sinal de fluxo de bits e método para decodificar um sinal de fluxo de bits para um sinal estéreo
BR122019023947-9A BR122019023947B1 (pt) 2009-03-17 2010-03-05 Sistema codificador, sistema decodificador, método para codificar um sinal estéreo para um sinal de fluxo de bits e método para decodificar um sinal de fluxo de bits para um sinal estéreo
BR122019023877-4A BR122019023877B1 (pt) 2009-03-17 2010-03-05 Sistema codificador, sistema decodificador, método para codificar um sinal estéreo para um sinal de fluxo de bits e método para decodificar um sinal de fluxo de bits para um sinal estéreo

Country Status (12)

Country Link
US (15) US9082395B2 (pt)
EP (2) EP2626855B1 (pt)
JP (1) JP5214058B2 (pt)
KR (2) KR101367604B1 (pt)
CN (2) CN102388417B (pt)
AU (1) AU2010225051B2 (pt)
BR (4) BR122019023924B1 (pt)
CA (5) CA2754671C (pt)
ES (2) ES2519415T3 (pt)
MX (1) MX2011009660A (pt)
RU (3) RU2520329C2 (pt)
WO (1) WO2010105926A2 (pt)

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