MX2014015742A - Codificacion de audio basada en prediccion lineal que utiliza calculo de distribucion de probabilidades mejorado. - Google Patents

Codificacion de audio basada en prediccion lineal que utiliza calculo de distribucion de probabilidades mejorado.

Info

Publication number
MX2014015742A
MX2014015742A MX2014015742A MX2014015742A MX2014015742A MX 2014015742 A MX2014015742 A MX 2014015742A MX 2014015742 A MX2014015742 A MX 2014015742A MX 2014015742 A MX2014015742 A MX 2014015742A MX 2014015742 A MX2014015742 A MX 2014015742A
Authority
MX
Mexico
Prior art keywords
probability distribution
linear prediction
distribution estimation
coding
based audio
Prior art date
Application number
MX2014015742A
Other languages
English (en)
Other versions
MX353385B (es
Inventor
Markus Multrus
Guillaume Fuchs
Christian Helmrich
Martin Dietz
Tom Bäckström
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 MX2014015742A publication Critical patent/MX2014015742A/es
Publication of MX353385B publication Critical patent/MX353385B/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
    • G10L19/04—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
    • 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
    • G10L19/032—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
    • G10L19/06—Determination or coding of the spectral characteristics, e.g. of the short-term prediction coefficients
    • 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
    • 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
    • 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
    • G10L25/12—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 prediction coefficients

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)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)

Abstract

La codificación de audio basada en predicción lineal se mejora mediante la codificación de un espectro compuesto por una pluralidad de componentes espectrales usando una estimación de la distribución de probabilidades determinada por cada uno de la pluralidad de componentes espectrales a partir de la información sobre coeficientes de predicción lineal. En particular, la información sobre coeficientes de predicción lineal está disponible de todas maneras. En consecuencia, se la puede utilizar para determinar la estimación de la distribución de probabilidades tanto del lado de la codificación como de la decodificación. Esta última determinación puede ser implementada de manera informáticamente sencilla utilizando, por ejemplo, una parametrización apropiada para la estimación de la distribución de probabilidades en la pluralidad de componentes espectrales. En general, la eficiencia de codificación provista por la codificación por entropía es compatible con las estimaciones de la distribución de probabilidades obtenidas utilizando la selección del contexto, aunque su derivación es menos compleja. Por ejemplo, la derivación puede ser puramente analítica y/o no requerir información alguna sobre los atributos de las líneas espectrales cercanas como los valores espectrales antes codificados! decodificados de las líneas espectrales contiguas como ocurre en la selección del contexto espacial.
MX2014015742A 2012-06-28 2013-06-19 Codificación de audio basada en predicción lineal que utiliza cálculo de distribución de probabilidades mejorado. MX353385B (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201261665485P 2012-06-28 2012-06-28
PCT/EP2013/062809 WO2014001182A1 (en) 2012-06-28 2013-06-19 Linear prediction based audio coding using improved probability distribution estimation

Publications (2)

Publication Number Publication Date
MX2014015742A true MX2014015742A (es) 2015-04-08
MX353385B MX353385B (es) 2018-01-10

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
MX2014015742A MX353385B (es) 2012-06-28 2013-06-19 Codificación de audio basada en predicción lineal que utiliza cálculo de distribución de probabilidades mejorado.

Country Status (20)

Country Link
US (1) US9536533B2 (es)
EP (1) EP2867892B1 (es)
JP (1) JP6113278B2 (es)
KR (2) KR101733326B1 (es)
CN (1) CN104584122B (es)
AR (1) AR091631A1 (es)
AU (1) AU2013283568B2 (es)
BR (1) BR112014032735B1 (es)
CA (1) CA2877161C (es)
ES (1) ES2644131T3 (es)
HK (1) HK1210316A1 (es)
MX (1) MX353385B (es)
MY (1) MY168806A (es)
PL (1) PL2867892T3 (es)
PT (1) PT2867892T (es)
RU (1) RU2651187C2 (es)
SG (1) SG11201408677YA (es)
TW (1) TWI520129B (es)
WO (1) WO2014001182A1 (es)
ZA (1) ZA201500504B (es)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
MY181965A (en) 2013-10-18 2021-01-15 Fraunhofer Ges Forschung Coding of spectral coefficients of a spectrum of an audio signal
EP2919232A1 (en) 2014-03-14 2015-09-16 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Encoder, decoder and method for encoding and decoding
WO2015166694A1 (ja) * 2014-05-01 2015-11-05 日本電信電話株式会社 周期性統合包絡系列生成装置、周期性統合包絡系列生成方法、周期性統合包絡系列生成プログラム、記録媒体
EP3140831B1 (en) 2014-05-08 2018-07-11 Telefonaktiebolaget LM Ericsson (publ) Audio signal discriminator and coder
EP2980793A1 (en) 2014-07-28 2016-02-03 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Encoder, decoder, system and methods for encoding and decoding
US10057383B2 (en) 2015-01-21 2018-08-21 Microsoft Technology Licensing, Llc Sparsity estimation for data transmission
KR102070145B1 (ko) 2015-01-30 2020-01-28 니폰 덴신 덴와 가부시끼가이샤 파라미터 결정 장치, 방법, 프로그램 및 기록 매체
EP3382700A1 (en) 2017-03-31 2018-10-03 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Apparatus and method for post-processing an audio signal using a transient location detection
EP3382701A1 (en) 2017-03-31 2018-10-03 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Apparatus and method for post-processing an audio signal using prediction based shaping
CN114172891B (zh) * 2021-11-19 2024-02-13 湖南遥昇通信技术有限公司 基于加权概率编码的提升ftp传输安全性方法、设备及介质

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100322706B1 (ko) * 1995-09-25 2002-06-20 윤종용 선형예측부호화계수의부호화및복호화방법
US6353808B1 (en) * 1998-10-22 2002-03-05 Sony Corporation Apparatus and method for encoding a signal as well as apparatus and method for decoding a signal
US6658383B2 (en) * 2001-06-26 2003-12-02 Microsoft Corporation Method for coding speech and music signals
CA2457988A1 (en) * 2004-02-18 2005-08-18 Voiceage Corporation Methods and devices for audio compression based on acelp/tcx coding and multi-rate lattice vector quantization
US8515767B2 (en) * 2007-11-04 2013-08-20 Qualcomm Incorporated Technique for encoding/decoding of codebook indices for quantized MDCT spectrum in scalable speech and audio codecs
ATE518224T1 (de) * 2008-01-04 2011-08-15 Dolby Int Ab Audiokodierer und -dekodierer
CN101609680B (zh) * 2009-06-01 2012-01-04 华为技术有限公司 压缩编码和解码的方法、编码器和解码器以及编码装置
EP2309493B1 (en) * 2009-09-21 2013-08-14 Google, Inc. Coding and decoding of source signals using constrained relative entropy quantization
PL2473995T3 (pl) * 2009-10-20 2015-06-30 Fraunhofer Ges Forschung Koder sygnału audio, dekoder sygnału audio, sposób dostarczania zakodowanej reprezentacji treści audio, sposób dostarczania dekodowanej reprezentacji treści audio oraz program komputerowy do wykorzystania w zastosowaniach z małym opóźnieniem
JP5316896B2 (ja) * 2010-03-17 2013-10-16 ソニー株式会社 符号化装置および符号化方法、復号装置および復号方法、並びにプログラム
RU2445718C1 (ru) * 2010-08-31 2012-03-20 Государственное образовательное учреждение высшего профессионального образования Академия Федеральной службы охраны Российской Федерации (Академия ФСО России) Способ выделения сегментов обработки речи на основе анализа корреляционных зависимостей в речевом сигнале
EP2710589A1 (en) 2011-05-20 2014-03-26 Google, Inc. Redundant coding unit for audio codec

Also Published As

Publication number Publication date
TW201405549A (zh) 2014-02-01
AU2013283568B2 (en) 2016-05-12
KR20150032723A (ko) 2015-03-27
JP6113278B2 (ja) 2017-04-12
MY168806A (en) 2018-12-04
BR112014032735A2 (pt) 2017-06-27
JP2015525893A (ja) 2015-09-07
PT2867892T (pt) 2017-10-27
TWI520129B (zh) 2016-02-01
CN104584122B (zh) 2017-09-15
US20150106108A1 (en) 2015-04-16
PL2867892T3 (pl) 2018-01-31
MX353385B (es) 2018-01-10
HK1210316A1 (en) 2016-04-15
KR20170049642A (ko) 2017-05-10
CN104584122A (zh) 2015-04-29
US9536533B2 (en) 2017-01-03
EP2867892A1 (en) 2015-05-06
SG11201408677YA (en) 2015-01-29
AU2013283568A1 (en) 2015-01-29
AR091631A1 (es) 2015-02-18
WO2014001182A1 (en) 2014-01-03
CA2877161C (en) 2020-01-21
EP2867892B1 (en) 2017-08-02
ZA201500504B (en) 2016-01-27
CA2877161A1 (en) 2014-01-03
KR101866806B1 (ko) 2018-06-18
BR112014032735B1 (pt) 2022-04-26
KR101733326B1 (ko) 2017-05-24
RU2015102588A (ru) 2016-08-20
RU2651187C2 (ru) 2018-04-18
ES2644131T3 (es) 2017-11-27

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