MX357875B - Método y aparato de codificación de audio, método y aparato de decodificacion de audio, medio de grabación de los mismos y dispositivo multimedia que emplea los mismos. - Google Patents

Método y aparato de codificación de audio, método y aparato de decodificacion de audio, medio de grabación de los mismos y dispositivo multimedia que emplea los mismos.

Info

Publication number
MX357875B
MX357875B MX2015014526A MX2015014526A MX357875B MX 357875 B MX357875 B MX 357875B MX 2015014526 A MX2015014526 A MX 2015014526A MX 2015014526 A MX2015014526 A MX 2015014526A MX 357875 B MX357875 B MX 357875B
Authority
MX
Mexico
Prior art keywords
audio
band
encoding
sub
recording medium
Prior art date
Application number
MX2015014526A
Other languages
English (en)
Inventor
Porov Anton
Osipov Konstantin
Choo Ki-Hyun
Original Assignee
Samsung Electronics Co Ltd
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 Samsung Electronics Co Ltd filed Critical Samsung Electronics Co Ltd
Publication of MX357875B publication Critical patent/MX357875B/es

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
    • G10L19/02—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
    • 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
    • G10L19/0017—Lossless audio signal coding; Perfect reconstruction of coded audio signal by transmission of coding error
    • 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
    • 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
    • G10L19/0204—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 subband decomposition
    • 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
    • G10L19/032—Quantisation or dequantisation of spectral components
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computational Linguistics (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Mathematical Physics (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)

Abstract

De acuerdo con la presente invención, un método de codificación de audio comprende las etapas de: para un espectro de audio, adquirir un envolvente en función de una sub-banda predeterminada; cuantificar el envolvente en función de la sub-banda; y obtener un valor de diferencia entre los envolventes cuantificados de una sub-banda adyacente, y efectuar una codificación sin pérdida en el valor de diferencia de la sub-banda actual utilizando, como un contexto, el valor de diferencia de la sub-banda previa. De acuerdo con la presente invención, podría ser reducido el número de bits utilizado para codificar la información de envolvente de un espectro de audio en un intervalo limitado de bits, con lo cual, se incrementa el número de bits utilizado para la codificación de los actuales componentes de espectro.
MX2015014526A 2011-06-01 2012-06-01 Método y aparato de codificación de audio, método y aparato de decodificacion de audio, medio de grabación de los mismos y dispositivo multimedia que emplea los mismos. MX357875B (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
RU2011121982/08A RU2464649C1 (ru) 2011-06-01 2011-06-01 Способ обработки звукового сигнала
PCT/KR2012/004362 WO2012165910A2 (ko) 2011-06-01 2012-06-01 오디오 부호화방법 및 장치, 오디오 복호화방법 및 장치, 그 기록매체 및 이를 채용하는 멀티미디어 기기

Publications (1)

Publication Number Publication Date
MX357875B true MX357875B (es) 2018-07-27

Family

ID=47145534

Family Applications (2)

Application Number Title Priority Date Filing Date
MX2013014152A MX2013014152A (es) 2011-06-01 2012-06-01 Metodo y aparato de codificacion de audio, metodo y aparato de decodificacion de audio, medio de grabacion de los mismos y dispositivo multimedia que emplea los mismos.
MX2015014526A MX357875B (es) 2011-06-01 2012-06-01 Método y aparato de codificación de audio, método y aparato de decodificacion de audio, medio de grabación de los mismos y dispositivo multimedia que emplea los mismos.

Family Applications Before (1)

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MX2013014152A MX2013014152A (es) 2011-06-01 2012-06-01 Metodo y aparato de codificacion de audio, metodo y aparato de decodificacion de audio, medio de grabacion de los mismos y dispositivo multimedia que emplea los mismos.

Country Status (12)

Country Link
US (3) US9361895B2 (es)
EP (1) EP2717264B1 (es)
JP (2) JP6262649B2 (es)
KR (2) KR102044006B1 (es)
CN (3) CN103733257B (es)
AU (3) AU2012263093B2 (es)
CA (1) CA2838170C (es)
MX (2) MX2013014152A (es)
PL (1) PL2717264T3 (es)
RU (1) RU2464649C1 (es)
TW (3) TWI601130B (es)
WO (1) WO2012165910A2 (es)

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KR20120135118A (ko) 2012-12-12
TWI601130B (zh) 2017-10-01
EP2717264B1 (en) 2020-01-01
US20140156284A1 (en) 2014-06-05
AU2016256685A1 (en) 2016-11-24
KR102044006B1 (ko) 2019-11-12
CN106803425A (zh) 2017-06-06
TWI562134B (en) 2016-12-11
CN103733257A (zh) 2014-04-16
KR102154741B1 (ko) 2020-09-11
CA2838170A1 (en) 2012-12-06
CN106782575A (zh) 2017-05-31
CN106803425B (zh) 2021-01-12
US9361895B2 (en) 2016-06-07
TW201738881A (zh) 2017-11-01
CA2838170C (en) 2019-08-13
AU2017228519A1 (en) 2017-10-05
US9858934B2 (en) 2018-01-02
JP2014520282A (ja) 2014-08-21
AU2016256685B2 (en) 2017-06-15
US20170178637A1 (en) 2017-06-22
AU2012263093B2 (en) 2016-08-11
WO2012165910A3 (ko) 2013-03-28
US9589569B2 (en) 2017-03-07
PL2717264T3 (pl) 2020-04-30
JP6262649B2 (ja) 2018-01-17
TW201705125A (zh) 2017-02-01
KR20190128126A (ko) 2019-11-15
EP2717264A4 (en) 2014-10-29
EP2717264A2 (en) 2014-04-09
TWI616869B (zh) 2018-03-01
TW201303852A (zh) 2013-01-16
MX2013014152A (es) 2014-04-16
JP2018067008A (ja) 2018-04-26
AU2012263093A1 (en) 2014-01-09
RU2464649C1 (ru) 2012-10-20
WO2012165910A2 (ko) 2012-12-06
CN103733257B (zh) 2017-02-15
CN106782575B (zh) 2020-12-18
JP6612837B2 (ja) 2019-11-27
US20160247510A1 (en) 2016-08-25
AU2017228519B2 (en) 2018-10-04

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