MX2015009745A - Aparato y metodo para seleccionar uno de un primer algoritmo de codificacion y un segundo algoritmo de codificacion. - Google Patents

Aparato y metodo para seleccionar uno de un primer algoritmo de codificacion y un segundo algoritmo de codificacion.

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Publication number
MX2015009745A
MX2015009745A MX2015009745A MX2015009745A MX2015009745A MX 2015009745 A MX2015009745 A MX 2015009745A MX 2015009745 A MX2015009745 A MX 2015009745A MX 2015009745 A MX2015009745 A MX 2015009745A MX 2015009745 A MX2015009745 A MX 2015009745A
Authority
MX
Mexico
Prior art keywords
encoding algorithm
audio encoding
selecting
audio signal
encoding
Prior art date
Application number
MX2015009745A
Other languages
English (en)
Other versions
MX347410B (es
Inventor
Guillaume Fuchs
Christian Helmrich
Emmanuel Ravelli
Stefan Döhla
Eleni Fotopoulou
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.)
Filing date
Publication date
Application filed by Fraunhofer Ges Forschung filed Critical Fraunhofer Ges Forschung
Publication of MX2015009745A publication Critical patent/MX2015009745A/es
Publication of MX347410B publication Critical patent/MX347410B/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
    • G10L19/04—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
    • G10L19/125—Pitch excitation, e.g. pitch synchronous innovation CELP [PSI-CELP]
    • 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
    • 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
    • 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
    • G10L19/22—Mode decision, i.e. based on audio signal content versus external parameters
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M7/00—Conversion of a code where information is represented by a given sequence or number of digits to a code where the same, similar or subset of information is represented by a different sequence or number of digits
    • H03M7/30—Compression; Expansion; Suppression of unnecessary data, e.g. redundancy reduction
    • 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
    • G10L19/08—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters

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)
  • Theoretical Computer Science (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)

Abstract

Un aparato para seleccionar uno de un primer algoritmo de codificación que tiene una primera característica y un segundo algoritmo de codificación que tiene una segunda característica para codificar una porción de una señal de audio para obtener una versión codificada de la porción de la señal de audio, comprende un primer estimador para estimar una primera medida de calidad para la porción de la señal de audio, que está asociada con el primer algoritmo de codificación, sin codificar y decodificar realmente la porción de la señal de audio usando el primer algoritmo de codificación. Un segundo estimador para estimar una segunda medida de calidad para la porción de la señal de audio, que está asociado con el segundo algoritmo de codificación, sin codificar y decodificar realmente la porción de la señal de audio usando el segundo algoritmo de codificación. El aparato comprende un controlador para seleccionar el primer algoritmo de codificación o el segundo algoritmo de codificación basado en una comparación entre la primera medida de calidad y la segunda medida de calidad.
MX2015009745A 2013-01-29 2014-01-28 Aparato y metodo para seleccionar uno de un primer algoritmo de codificacion y un segundo algoritmo de codificacion. MX347410B (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201361758100P 2013-01-29 2013-01-29
PCT/EP2014/051557 WO2014118136A1 (en) 2013-01-29 2014-01-28 Apparatus and method for selecting one of a first audio encoding algorithm and a second audio encoding algorithm

Publications (2)

Publication Number Publication Date
MX2015009745A true MX2015009745A (es) 2015-11-06
MX347410B MX347410B (es) 2017-04-26

Family

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Family Applications (1)

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MX2015009745A MX347410B (es) 2013-01-29 2014-01-28 Aparato y metodo para seleccionar uno de un primer algoritmo de codificacion y un segundo algoritmo de codificacion.

Country Status (19)

Country Link
US (4) US20150332698A1 (es)
EP (1) EP2951820B1 (es)
JP (1) JP6148810B2 (es)
KR (1) KR101701081B1 (es)
CN (2) CN105229736B (es)
AR (1) AR094676A1 (es)
AU (1) AU2014211583B2 (es)
BR (1) BR112015018021B1 (es)
CA (1) CA2899013C (es)
ES (1) ES2616434T3 (es)
HK (1) HK1218461A1 (es)
MX (1) MX347410B (es)
MY (1) MY189267A (es)
PL (1) PL2951820T3 (es)
PT (1) PT2951820T (es)
RU (1) RU2618848C2 (es)
SG (1) SG11201505947XA (es)
TW (1) TWI549120B (es)
WO (1) WO2014118136A1 (es)

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EP2830052A1 (en) 2013-07-22 2015-01-28 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Audio decoder, audio encoder, method for providing at least four audio channel signals on the basis of an encoded representation, method for providing an encoded representation on the basis of at least four audio channel signals and computer program using a bandwidth extension
CN107452390B (zh) 2014-04-29 2021-10-26 华为技术有限公司 音频编码方法及相关装置
CN110444219B (zh) 2014-07-28 2023-06-13 弗劳恩霍夫应用研究促进协会 选择第一编码演算法或第二编码演算法的装置与方法
JP2016218345A (ja) * 2015-05-25 2016-12-22 ヤマハ株式会社 音素材処理装置および音素材処理プログラム
WO2017050398A1 (en) * 2015-09-25 2017-03-30 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Encoder, decoder and methods for signal-adaptive switching of the overlap ratio in audio transform coding
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CN110444219B (zh) * 2014-07-28 2023-06-13 弗劳恩霍夫应用研究促进协会 选择第一编码演算法或第二编码演算法的装置与方法

Also Published As

Publication number Publication date
TW201434037A (zh) 2014-09-01
JP6148810B2 (ja) 2017-06-14
PT2951820T (pt) 2017-03-02
EP2951820A1 (en) 2015-12-09
CN105229736A (zh) 2016-01-06
EP2951820B1 (en) 2016-12-07
KR101701081B1 (ko) 2017-01-31
CA2899013A1 (en) 2014-08-07
US20190103121A1 (en) 2019-04-04
JP2016505902A (ja) 2016-02-25
AU2014211583B2 (en) 2017-01-05
US11908485B2 (en) 2024-02-20
RU2618848C2 (ru) 2017-05-12
US20150332698A1 (en) 2015-11-19
BR112015018021B1 (pt) 2022-10-11
MX347410B (es) 2017-04-26
US11521631B2 (en) 2022-12-06
BR112015018021A2 (es) 2017-07-11
RU2015136467A (ru) 2017-03-07
SG11201505947XA (en) 2015-09-29
AR094676A1 (es) 2015-08-19
ES2616434T3 (es) 2017-06-13
HK1218461A1 (zh) 2017-02-17
US20200227059A1 (en) 2020-07-16
KR20150108848A (ko) 2015-09-30
US20230079574A1 (en) 2023-03-16
AU2014211583A1 (en) 2015-09-17
CA2899013C (en) 2017-11-07
MY189267A (en) 2022-01-31
US10622000B2 (en) 2020-04-14
PL2951820T3 (pl) 2017-06-30
TWI549120B (zh) 2016-09-11
WO2014118136A1 (en) 2014-08-07
CN110517700A (zh) 2019-11-29
CN110517700B (zh) 2023-06-09
CN105229736B (zh) 2019-07-19

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