MX388622B - Dispositivo decodificador de audio, dispositivo codificador de audio, metodo de decodificacion de audio, metodo de codificacion de audio, programa de decodificacion de audio, y programa de codificacion de audio - Google Patents

Dispositivo decodificador de audio, dispositivo codificador de audio, metodo de decodificacion de audio, metodo de codificacion de audio, programa de decodificacion de audio, y programa de codificacion de audio

Info

Publication number
MX388622B
MX388622B MX2018002676A MX2018002676A MX388622B MX 388622 B MX388622 B MX 388622B MX 2018002676 A MX2018002676 A MX 2018002676A MX 2018002676 A MX2018002676 A MX 2018002676A MX 388622 B MX388622 B MX 388622B
Authority
MX
Mexico
Prior art keywords
audio
decoding
program
encoding
encoded
Prior art date
Application number
MX2018002676A
Other languages
English (en)
Inventor
Atsushi Yamaguchi
Kei Kikuiri
Original Assignee
Ntt Docomo 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
Application filed by Ntt Docomo Inc filed Critical Ntt Docomo Inc
Publication of MX388622B publication Critical patent/MX388622B/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
    • G10L19/008—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
    • 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
    • G10L19/028—Noise substitution, i.e. substituting non-tonal spectral components by noisy source
    • 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
    • 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
    • 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
    • G10L19/26—Pre-filtering or post-filtering
    • 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
    • G10L21/00—Speech or voice signal processing techniques to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
    • G10L21/02—Speech enhancement, e.g. noise reduction or echo cancellation
    • G10L21/038—Speech enhancement, e.g. noise reduction or echo cancellation using band spreading techniques

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Signal Processing (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Computational Linguistics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Quality & Reliability (AREA)
  • Mathematical Physics (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Stereo-Broadcasting Methods (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)

Abstract

El propósito de la presente invención es reducir la distorsión de un componente de banda de frecuencia codificado con un número pequeño de bits en el dominio del tiempo y mejorar la calidad. Un dispositivo decodificador de audio (10) decodifica una señal de audio codificada y envía la señal de audio. Una unidad de decodificación (10a) decodifica una secuencia codificada que contiene una señal de audio codificada y obtiene una señal decodificada. Una unidad de formación de la envolvente temporal selectiva (10b) forma una envolvente temporal de una señal decodificada en la banda de la frecuencia con base en la información relacionada con la decodificación relacionada con la decodificación de la secuencia codificada.
MX2018002676A 2014-03-24 2015-03-20 Dispositivo decodificador de audio, dispositivo codificador de audio, metodo de decodificacion de audio, metodo de codificacion de audio, programa de decodificacion de audio, y programa de codificacion de audio MX388622B (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2014060650A JP6035270B2 (ja) 2014-03-24 2014-03-24 音声復号装置、音声符号化装置、音声復号方法、音声符号化方法、音声復号プログラム、および音声符号化プログラム
PCT/JP2015/058608 WO2015146860A1 (ja) 2014-03-24 2015-03-20 音声復号装置、音声符号化装置、音声復号方法、音声符号化方法、音声復号プログラム、および音声符号化プログラム

Publications (1)

Publication Number Publication Date
MX388622B true MX388622B (es) 2025-03-20

Family

ID=54195375

Family Applications (2)

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MX2016012393A MX354434B (es) 2014-03-24 2015-03-20 Dispositivo decodificador de audio, dispositivo codificador de audio, metodo de decodificacion de audio, metodo de codificacion de audio, programa de decodificacion de audio, y programa de codificacion de audio.
MX2018002676A MX388622B (es) 2014-03-24 2015-03-20 Dispositivo decodificador de audio, dispositivo codificador de audio, metodo de decodificacion de audio, metodo de codificacion de audio, programa de decodificacion de audio, y programa de codificacion de audio

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Country Status (20)

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US (4) US10410647B2 (es)
EP (4) EP3125243B1 (es)
JP (1) JP6035270B2 (es)
KR (7) KR101782935B1 (es)
CN (2) CN107767876B (es)
AU (7) AU2015235133B2 (es)
BR (1) BR112016021165B1 (es)
CA (2) CA2990392C (es)
DK (2) DK3125243T3 (es)
ES (2) ES2772173T3 (es)
FI (1) FI3621073T3 (es)
HU (1) HUE065961T2 (es)
MX (2) MX354434B (es)
MY (1) MY165849A (es)
PH (1) PH12016501844A1 (es)
PL (2) PL3621073T3 (es)
PT (2) PT3125243T (es)
RU (7) RU2654141C1 (es)
TW (7) TWI608474B (es)
WO (1) WO2015146860A1 (es)

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TWI608474B (zh) 2017-12-11
DK3621073T3 (da) 2024-03-11
AU2015235133A1 (en) 2016-10-06
AU2019257487B2 (en) 2020-12-24
TWI894565B (zh) 2025-08-21
EP3621073B1 (en) 2024-02-14
US11437053B2 (en) 2022-09-06
AU2015235133B2 (en) 2017-11-30
TW202338789A (zh) 2023-10-01
PH12016501844B1 (en) 2016-12-19
KR20200028512A (ko) 2020-03-16
ES2772173T3 (es) 2020-07-07
RU2654141C1 (ru) 2018-05-16
MX354434B (es) 2018-03-06
TW202242854A (zh) 2022-11-01
KR20200030125A (ko) 2020-03-19
CN106133829B (zh) 2017-11-10
PT3621073T (pt) 2024-03-12
EP3125243A1 (en) 2017-02-01
MY165849A (en) 2018-05-17
KR20160119252A (ko) 2016-10-12
PL3125243T3 (pl) 2020-05-18
KR102038077B1 (ko) 2019-10-29
TW201937483A (zh) 2019-09-16
US20190355371A1 (en) 2019-11-21
JP2015184470A (ja) 2015-10-22
KR101906524B1 (ko) 2018-10-10
RU2631155C1 (ru) 2017-09-19
AU2021200604A1 (en) 2021-03-04
RU2741486C1 (ru) 2021-01-26
AU2018201468B2 (en) 2019-08-29
KR102089602B1 (ko) 2020-03-16
US20170117000A1 (en) 2017-04-27
CN106133829A (zh) 2016-11-16
TWI807906B (zh) 2023-07-01
KR102124962B1 (ko) 2020-07-07
RU2707722C2 (ru) 2019-11-28
PH12016501844A1 (en) 2016-12-19
TW202546818A (zh) 2025-12-01
AU2021200603B2 (en) 2022-03-10
RU2718421C1 (ru) 2020-04-02
EP3125243B1 (en) 2020-01-08
EP4293667A2 (en) 2023-12-20
RU2018115787A3 (es) 2019-10-28
KR102208915B1 (ko) 2021-01-27
EP3621073A1 (en) 2020-03-11
AU2021200607A1 (en) 2021-03-04
EP4293667A3 (en) 2024-06-12
KR20170110175A (ko) 2017-10-10
TWI773992B (zh) 2022-08-11
US20220366924A1 (en) 2022-11-17
AU2021200607B2 (en) 2022-03-24
AU2021200603A1 (en) 2021-03-04
AU2019257495B2 (en) 2020-12-24
TW201810251A (zh) 2018-03-16
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PT3125243T (pt) 2020-02-14
US20250140274A1 (en) 2025-05-01
JP6035270B2 (ja) 2016-11-30
WO2015146860A1 (ja) 2015-10-01
EP3125243A4 (en) 2017-05-17
CN107767876A (zh) 2018-03-06
RU2018115787A (ru) 2019-10-28
TWI666632B (zh) 2019-07-21
EP4700768A2 (en) 2026-02-25
MX2016012393A (es) 2016-11-30
ES2974029T3 (es) 2024-06-25
CN107767876B (zh) 2022-08-09
KR101782935B1 (ko) 2017-09-28
TW201603007A (zh) 2016-01-16
CA2942885C (en) 2018-02-20
CA2942885A1 (en) 2015-10-01
TWI696994B (zh) 2020-06-21
RU2732951C1 (ru) 2020-09-24
AU2018201468A1 (en) 2018-03-22
CA2990392A1 (en) 2015-10-01
KR20190122896A (ko) 2019-10-30
KR20200074279A (ko) 2020-06-24
TW202036541A (zh) 2020-10-01
AU2019257495A1 (en) 2019-11-21
PL3621073T3 (pl) 2024-05-20
US10410647B2 (en) 2019-09-10
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RU2751150C1 (ru) 2021-07-08
AU2019257487A1 (en) 2019-11-21
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US12223971B2 (en) 2025-02-11
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AU2021200604B2 (en) 2022-03-17
BR112016021165B1 (pt) 2020-11-10

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