MX2013003443A - Metodo y aparato para generar un vector de codigo candidato para codificar una señal informativa. - Google Patents

Metodo y aparato para generar un vector de codigo candidato para codificar una señal informativa.

Info

Publication number
MX2013003443A
MX2013003443A MX2013003443A MX2013003443A MX2013003443A MX 2013003443 A MX2013003443 A MX 2013003443A MX 2013003443 A MX2013003443 A MX 2013003443A MX 2013003443 A MX2013003443 A MX 2013003443A MX 2013003443 A MX2013003443 A MX 2013003443A
Authority
MX
Mexico
Prior art keywords
code
vector
generating
candidate
informational signal
Prior art date
Application number
MX2013003443A
Other languages
English (en)
Inventor
Udar Mittal
James P Ashley
Original Assignee
Motorola Mobility Llc
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 Motorola Mobility Llc filed Critical Motorola Mobility Llc
Publication of MX2013003443A publication Critical patent/MX2013003443A/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
    • 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
    • G10L19/08—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters
    • G10L19/083—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters the excitation function being an excitation gain
    • 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
    • G10L19/005—Correction of errors induced by the transmission channel, if related to the coding algorithm
    • 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
    • G10L2019/0001—Codebooks
    • G10L2019/0013—Codebook search algorithms

Landscapes

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

Abstract

Un método (300) y aparato (100) generan un vector de código candidato para codificar una señal de información. El método puede incluir, producir (310) un vector objetivo a partir de una señal de entrada recibida; el método puede incluir, construir (320) una pluralidad de funciones de ponderación inversa con base en el vector objetivo; el método puede incluir, evaluar (330) un valor de error asociado con cada una de la pluralidad de funciones de ponderación inversa para producir un vector de código del libro de códigos fijo; el método puede incluir, generar (340) una palabra código representativa del vector de código del libro de códigos fijo, donde la palabra código puede ser utilizada por un decodificador para generar una aproximación de la señal de entrada.
MX2013003443A 2012-04-04 2013-03-26 Metodo y aparato para generar un vector de codigo candidato para codificar una señal informativa. MX2013003443A (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US13/439,121 US9070356B2 (en) 2012-04-04 2012-04-04 Method and apparatus for generating a candidate code-vector to code an informational signal

Publications (1)

Publication Number Publication Date
MX2013003443A true MX2013003443A (es) 2014-05-22

Family

ID=47913226

Family Applications (1)

Application Number Title Priority Date Filing Date
MX2013003443A MX2013003443A (es) 2012-04-04 2013-03-26 Metodo y aparato para generar un vector de codigo candidato para codificar una señal informativa.

Country Status (6)

Country Link
US (1) US9070356B2 (es)
EP (1) EP2648184A1 (es)
KR (1) KR101453200B1 (es)
CN (1) CN103366752B (es)
BR (1) BR102013008010A2 (es)
MX (1) MX2013003443A (es)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9263053B2 (en) 2012-04-04 2016-02-16 Google Technology Holdings LLC Method and apparatus for generating a candidate code-vector to code an informational signal
US9070356B2 (en) 2012-04-04 2015-06-30 Google Technology Holdings LLC Method and apparatus for generating a candidate code-vector to code an informational signal
CN111736845A (zh) * 2020-06-09 2020-10-02 阿里巴巴集团控股有限公司 一种编码方法和装置

Family Cites Families (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5754976A (en) 1990-02-23 1998-05-19 Universite De Sherbrooke Algebraic codebook with signal-selected pulse amplitude/position combinations for fast coding of speech
US5495555A (en) * 1992-06-01 1996-02-27 Hughes Aircraft Company High quality low bit rate celp-based speech codec
US5664055A (en) * 1995-06-07 1997-09-02 Lucent Technologies Inc. CS-ACELP speech compression system with adaptive pitch prediction filter gain based on a measure of periodicity
TW317051B (es) * 1996-02-15 1997-10-01 Philips Electronics Nv
JPH10149199A (ja) * 1996-11-19 1998-06-02 Sony Corp 音声符号化方法、音声復号化方法、音声符号化装置、音声復号化装置、電話装置、ピッチ変換方法及び媒体
EP2154679B1 (en) * 1997-12-24 2016-09-14 BlackBerry Limited Method and apparatus for speech coding
US6330533B2 (en) * 1998-08-24 2001-12-11 Conexant Systems, Inc. Speech encoder adaptively applying pitch preprocessing with warping of target signal
US6493665B1 (en) * 1998-08-24 2002-12-10 Conexant Systems, Inc. Speech classification and parameter weighting used in codebook search
US7072832B1 (en) * 1998-08-24 2006-07-04 Mindspeed Technologies, Inc. System for speech encoding having an adaptive encoding arrangement
US6104992A (en) * 1998-08-24 2000-08-15 Conexant Systems, Inc. Adaptive gain reduction to produce fixed codebook target signal
US6480822B2 (en) * 1998-08-24 2002-11-12 Conexant Systems, Inc. Low complexity random codebook structure
CA2252170A1 (en) * 1998-10-27 2000-04-27 Bruno Bessette A method and device for high quality coding of wideband speech and audio signals
US6236960B1 (en) 1999-08-06 2001-05-22 Motorola, Inc. Factorial packing method and apparatus for information coding
EP1796083B1 (en) * 2000-04-24 2009-01-07 Qualcomm Incorporated Method and apparatus for predictively quantizing voiced speech
US7054807B2 (en) 2002-11-08 2006-05-30 Motorola, Inc. Optimizing encoder for efficiently determining analysis-by-synthesis codebook-related parameters
US7047188B2 (en) 2002-11-08 2006-05-16 Motorola, Inc. Method and apparatus for improvement coding of the subframe gain in a speech coding system
US7873511B2 (en) * 2006-06-30 2011-01-18 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Audio encoder, audio decoder and audio processor having a dynamically variable warping characteristic
US8255222B2 (en) * 2007-08-10 2012-08-28 Panasonic Corporation Speech separating apparatus, speech synthesizing apparatus, and voice quality conversion apparatus
WO2009033288A1 (en) * 2007-09-11 2009-03-19 Voiceage Corporation Method and device for fast algebraic codebook search in speech and audio coding
JP5448850B2 (ja) * 2008-01-25 2014-03-19 パナソニック株式会社 符号化装置、復号装置およびこれらの方法
NO2669468T3 (es) * 2011-05-11 2018-06-02
US9070356B2 (en) 2012-04-04 2015-06-30 Google Technology Holdings LLC Method and apparatus for generating a candidate code-vector to code an informational signal

Also Published As

Publication number Publication date
KR101453200B1 (ko) 2014-10-22
CN103366752B (zh) 2016-06-01
KR20130112796A (ko) 2013-10-14
US9070356B2 (en) 2015-06-30
CN103366752A (zh) 2013-10-23
EP2648184A1 (en) 2013-10-09
US20130268266A1 (en) 2013-10-10
BR102013008010A2 (pt) 2016-11-01

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