MX356371B - Dispositivo de codificacion de señal acustica, dispositivo de decodificacion de señal acustica, metodo para codificar una señal acustica y metodo para decodificar una señal acustica. - Google Patents

Dispositivo de codificacion de señal acustica, dispositivo de decodificacion de señal acustica, metodo para codificar una señal acustica y metodo para decodificar una señal acustica.

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Publication number
MX356371B
MX356371B MX2016015786A MX2016015786A MX356371B MX 356371 B MX356371 B MX 356371B MX 2016015786 A MX2016015786 A MX 2016015786A MX 2016015786 A MX2016015786 A MX 2016015786A MX 356371 B MX356371 B MX 356371B
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MX
Mexico
Prior art keywords
acoustic signal
encoding
sub
decoding
band
Prior art date
Application number
MX2016015786A
Other languages
English (en)
Other versions
MX2016015786A (es
Inventor
Kawashima Takuya
Ehara Hiroyuki
Original Assignee
Fraunhofer Ges Forschung
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.)
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Publication date
Application filed by Fraunhofer Ges Forschung filed Critical Fraunhofer Ges Forschung
Publication of MX2016015786A publication Critical patent/MX2016015786A/es
Publication of MX356371B publication Critical patent/MX356371B/es

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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
    • 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
    • G10L19/0204—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
    • G10L19/0208—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
    • G10L19/02—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
    • G10L19/08—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters
    • G10L19/12—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters the excitation function being a code excitation, e.g. in code excited linear prediction [CELP] vocoders
    • G10L19/135—Vector sum excited linear prediction [VSELP]
    • 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
    • G10L25/18—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 spectral information of each sub-band
    • 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
    • G10L19/035—Scalar quantisation

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

Un aparato (100) de codificación de señal de audio incluye un transformador (101) de tiempo-frecuencia que transmite espectros de banda secundaria desde una señal de entrada, un cuantificador (102) de energía de banda secundaria, un calculador (103) de tonalidad que analiza la tonalidad de los espectros de banda secundaria, un asignador (104) de bits que selecciona una segunda banda secundaria sobre la cual se realiza la cuantificación por un segundo cuantificador en base en el resultado de análisis de la tonalidad y la energía de banda secundaria cuantificada, y determina un primer número de bits que van a ser asignados a una primera banda secundaria sobre la cual se realiza la cuantificación por un primer cuantificador, el primer cuantificador (106) que realiza codificación utilizando el primer número de bits, el segundo cuantificador (107) que realiza codificación utilizando un filtro de paso y un multiplexor (108).
MX2016015786A 2014-07-25 2015-07-03 Dispositivo de codificacion de señal acustica, dispositivo de decodificacion de señal acustica, metodo para codificar una señal acustica y metodo para decodificar una señal acustica. MX356371B (es)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US201462028805P 2014-07-25 2014-07-25
JP2014219214 2014-10-28
PCT/JP2015/003358 WO2016013164A1 (ja) 2014-07-25 2015-07-03 音響信号符号化装置、音響信号復号装置、音響信号符号化方法および音響信号復号方法

Publications (2)

Publication Number Publication Date
MX2016015786A MX2016015786A (es) 2017-02-27
MX356371B true MX356371B (es) 2018-05-25

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MX2016015786A MX356371B (es) 2014-07-25 2015-07-03 Dispositivo de codificacion de señal acustica, dispositivo de decodificacion de señal acustica, metodo para codificar una señal acustica y metodo para decodificar una señal acustica.

Country Status (14)

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US (3) US10311879B2 (es)
EP (3) EP3723086B1 (es)
JP (1) JP6717746B2 (es)
KR (1) KR102165403B1 (es)
CN (2) CN106133831B (es)
AU (1) AU2015291897B2 (es)
BR (1) BR112017000629B1 (es)
CA (1) CA2958429C (es)
ES (1) ES2989615T3 (es)
MX (1) MX356371B (es)
PL (3) PL3413307T3 (es)
RU (1) RU2669706C2 (es)
SG (1) SG11201701197TA (es)
WO (1) WO2016013164A1 (es)

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Publication number Publication date
US11521625B2 (en) 2022-12-06
US10643623B2 (en) 2020-05-05
EP3174050A4 (en) 2017-05-31
EP3723086B1 (en) 2024-09-11
CA2958429C (en) 2020-03-10
JPWO2016013164A1 (ja) 2017-04-27
SG11201701197TA (en) 2017-03-30
US20190228783A1 (en) 2019-07-25
CA2958429A1 (en) 2016-01-28
EP3174050A1 (en) 2017-05-31
AU2015291897B2 (en) 2019-02-21
PL3413307T3 (pl) 2021-01-11
WO2016013164A1 (ja) 2016-01-28
CN106133831A (zh) 2016-11-16
EP3723086C0 (en) 2024-09-11
EP3413307A1 (en) 2018-12-12
ES2989615T3 (es) 2024-11-27
EP3174050B1 (en) 2018-11-14
RU2669706C2 (ru) 2018-10-15
AU2015291897A1 (en) 2017-03-09
BR112017000629B1 (pt) 2021-02-17
EP3413307B1 (en) 2020-07-15
KR20170035827A (ko) 2017-03-31
US20200219518A1 (en) 2020-07-09
BR112017000629A2 (pt) 2017-11-14
MX2016015786A (es) 2017-02-27
JP6717746B2 (ja) 2020-07-01
CN106133831B (zh) 2021-10-26
PL3174050T3 (pl) 2019-04-30
RU2017102311A (ru) 2018-08-27
US20170069328A1 (en) 2017-03-09
US10311879B2 (en) 2019-06-04
KR102165403B1 (ko) 2020-10-14
PL3723086T3 (pl) 2025-02-17
CN114023341A (zh) 2022-02-08
EP3723086A1 (en) 2020-10-14
RU2017102311A3 (es) 2018-08-27

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