BR112012025868A2 - Sistema decodificador para fornecer um sinal estéreo por meio de codificação estéreo de predição complexa e método de decodificação para up-mixing de um sinal estéreo de entrada por meio de codificação estéreo de predição complexa em um sinal estéreo de saída - Google Patents

Sistema decodificador para fornecer um sinal estéreo por meio de codificação estéreo de predição complexa e método de decodificação para up-mixing de um sinal estéreo de entrada por meio de codificação estéreo de predição complexa em um sinal estéreo de saída

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Publication number
BR112012025868A2
BR112012025868A2 BR112012025868A BR112012025868A BR112012025868A2 BR 112012025868 A2 BR112012025868 A2 BR 112012025868A2 BR 112012025868 A BR112012025868 A BR 112012025868A BR 112012025868 A BR112012025868 A BR 112012025868A BR 112012025868 A2 BR112012025868 A2 BR 112012025868A2
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BR
Brazil
Prior art keywords
stereo
stereo signal
signal via
via complex
coding
Prior art date
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BR112012025868A
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English (en)
Other versions
BR112012025868B1 (pt
Inventor
Heiko Purnhagen
Lars Villemoes
Pontus Carlsson
Original Assignee
Dolby Int Ab
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Application filed by Dolby Int Ab filed Critical Dolby Int Ab
Priority to BR122020007937-1A priority Critical patent/BR122020007937B1/pt
Publication of BR112012025868A2 publication Critical patent/BR112012025868A2/pt
Publication of BR112012025868B1 publication Critical patent/BR112012025868B1/pt

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    • 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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L19/00—Details of, or accessories for, apparatus for measuring steady or quasi-steady pressure of a fluent medium insofar as such details or accessories are not special to particular types of pressure gauges
    • 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
    • G10L19/012—Comfort noise or silence 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
    • G10L19/02—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 spectral analysis, e.g. transform vocoders or subband vocoders
    • G10L19/022—Blocking, i.e. grouping of samples in time; Choice of analysis windows; Overlap factoring
    • 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
    • G10L19/02—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 spectral analysis, e.g. transform vocoders or subband vocoders
    • G10L19/03—Spectral prediction for preventing pre-echo; Temporary noise shaping [TNS], e.g. in MPEG2 or MPEG4
    • 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
    • G10L19/06—Determination or coding of the spectral characteristics, e.g. of the short-term prediction coefficients
    • 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
    • G10L19/167—Audio streaming, i.e. formatting and decoding of an encoded audio signal representation into a data stream for transmission or storage purposes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S3/00—Systems employing more than two channels, e.g. quadraphonic
    • H04S3/008—Systems employing more than two channels, e.g. quadraphonic in which the audio signals are in digital form, i.e. employing more than two discrete digital channels
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/16—Sound input; Sound output
    • G06F3/162—Interface to dedicated audio devices, e.g. audio drivers, interface to CODECs
    • 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
    • G10L19/02—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 spectral analysis, e.g. transform vocoders or subband vocoders
    • G10L19/0212—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 spectral analysis, e.g. transform vocoders or subband vocoders using orthogonal transformation
    • 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
    • G10L25/00—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00
    • G10L25/03—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 characterised by the type of extracted parameters
    • G10L25/12—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 characterised by the type of extracted parameters the extracted parameters being prediction coefficients
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Multimedia (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Human Computer Interaction (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Computational Linguistics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Mathematical Physics (AREA)
  • General Physics & Mathematics (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Stereophonic System (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
  • Stereo-Broadcasting Methods (AREA)
BR112012025868-0A 2010-04-09 2011-04-06 Sistema decodificador para fornecer um sinal estéreo por meio de codificação estéreo de predição complexa e método de decodificação para up-mixing de um sinal estéreo de entrada por meio de codificação estéreo de predição complexa em um sinal estéreo de saída BR112012025868B1 (pt)

Priority Applications (1)

Application Number Priority Date Filing Date Title
BR122020007937-1A BR122020007937B1 (pt) 2010-04-09 2011-04-06 Sistema decodificador para prover um sinal estéreo por codificação estéreo de predição complexa e método de decodificação para realizar uma mistura ascendente de um sinal estéreo de entrada por codificação estéreo de predição complexa para um sinal estéreo de saída

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US32245810P 2010-04-09 2010-04-09
US61/322,458 2010-04-09
PCT/EP2011/055369 WO2011124616A1 (en) 2010-04-09 2011-04-06 Mdct-based complex prediction stereo coding

Publications (2)

Publication Number Publication Date
BR112012025868A2 true BR112012025868A2 (pt) 2017-08-29
BR112012025868B1 BR112012025868B1 (pt) 2021-09-28

Family

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Family Applications (6)

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BR112012025863-0A BR112012025863B1 (pt) 2010-04-09 2011-04-06 sistema decodificador e método de decodificação para codificação estéreo por predição complexa baseada em mdct
BR112012025878-8A BR112012025878B1 (pt) 2010-04-09 2011-04-06 sistema decodificador, sistema codificador, método de decodificação e método de codificação.
BR112012025868-0A BR112012025868B1 (pt) 2010-04-09 2011-04-06 Sistema decodificador para fornecer um sinal estéreo por meio de codificação estéreo de predição complexa e método de decodificação para up-mixing de um sinal estéreo de entrada por meio de codificação estéreo de predição complexa em um sinal estéreo de saída
BR122019026130-0A BR122019026130B1 (pt) 2010-04-09 2011-04-06 sistema decodificador, sistema codificador, método de decodificação e método de codificação
BR122019026166-0A BR122019026166B1 (pt) 2010-04-09 2011-04-06 sistema decodificador, aparelho e método para emitir um sinal de áudio estereofônico tendo um canal esquerdo e um canal direito e meio legível por computador não transitório
BR122019013299-2A BR122019013299B1 (pt) 2010-04-09 2011-04-06 aparelho e método para emitir um sinal de áudio esterofônico possuindo um canal esquerdo e um canal direito e meio legível por computador não transitório

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BR112012025863-0A BR112012025863B1 (pt) 2010-04-09 2011-04-06 sistema decodificador e método de decodificação para codificação estéreo por predição complexa baseada em mdct
BR112012025878-8A BR112012025878B1 (pt) 2010-04-09 2011-04-06 sistema decodificador, sistema codificador, método de decodificação e método de codificação.

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BR122019026130-0A BR122019026130B1 (pt) 2010-04-09 2011-04-06 sistema decodificador, sistema codificador, método de decodificação e método de codificação
BR122019026166-0A BR122019026166B1 (pt) 2010-04-09 2011-04-06 sistema decodificador, aparelho e método para emitir um sinal de áudio estereofônico tendo um canal esquerdo e um canal direito e meio legível por computador não transitório
BR122019013299-2A BR122019013299B1 (pt) 2010-04-09 2011-04-06 aparelho e método para emitir um sinal de áudio esterofônico possuindo um canal esquerdo e um canal direito e meio legível por computador não transitório

Country Status (18)

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US (19) US9111530B2 (pt)
EP (12) EP3474278B1 (pt)
JP (22) JP5813094B2 (pt)
KR (14) KR101586198B1 (pt)
CN (6) CN102947880B (pt)
AU (3) AU2011237877B2 (pt)
BR (6) BR112012025863B1 (pt)
CA (15) CA2793140C (pt)
DK (2) DK2556504T3 (pt)
ES (8) ES2935962T3 (pt)
IL (21) IL303558B1 (pt)
MX (3) MX2012011530A (pt)
MY (2) MY184661A (pt)
PL (2) PL2556502T3 (pt)
RU (6) RU2559899C2 (pt)
SG (4) SG10201502597QA (pt)
TR (2) TR201901375T4 (pt)
WO (3) WO2011124616A1 (pt)

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