MX2010009307A - Dispositivo de codificacion, dispositivo de decodificacion y metodo de los mismos. - Google Patents

Dispositivo de codificacion, dispositivo de decodificacion y metodo de los mismos.

Info

Publication number
MX2010009307A
MX2010009307A MX2010009307A MX2010009307A MX2010009307A MX 2010009307 A MX2010009307 A MX 2010009307A MX 2010009307 A MX2010009307 A MX 2010009307A MX 2010009307 A MX2010009307 A MX 2010009307A MX 2010009307 A MX2010009307 A MX 2010009307A
Authority
MX
Mexico
Prior art keywords
layer
sub
band
signal
decoding
Prior art date
Application number
MX2010009307A
Other languages
English (en)
Inventor
Masahiro Oshikiri
Tomofumi Yamanashi
Original Assignee
Panasonic Corp
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 Panasonic Corp filed Critical Panasonic Corp
Publication of MX2010009307A publication Critical patent/MX2010009307A/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
    • 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
    • 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
    • G10L19/04—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
    • 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
    • G10L25/00—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Computational Linguistics (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Human Computer Interaction (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Quality & Reliability (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)

Abstract

Es posible mejorar la calidad de una señal de decodificación en una extensión de banda para estimar una banda alta de una banda baja de una señal de decodificación. Una primera unidad de codificación de capa (202) codifica una porción de banda más baja por debajo de una frecuencia predeterminada de una señal de entrada para así generar la primera información codificada de capa. Una primera unidad de decodificación de capa (203) decodifica la primera información codificada de capa para así generar una primera señal de desmodulada de capa. Una segunda unidad de codificación de capa (206) divide una porción de banda alta más alta que una frecuencia predeterminada de una señal de entrada en una pluralidad de subbandas y estima cada una de la subbandas a partir de la señal de entrada o la primera señal decodificada de capa utilizando el resultado de la estimación de la subbanda adyacente al lado de la banda más baja para así generar la segunda información codificada que incluye los resultados de la estimación de las subbandas.
MX2010009307A 2008-03-14 2009-03-13 Dispositivo de codificacion, dispositivo de decodificacion y metodo de los mismos. MX2010009307A (es)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP2008066202 2008-03-14
JP2008143963 2008-05-30
JP2008298091 2008-11-21
PCT/JP2009/001129 WO2009113316A1 (ja) 2008-03-14 2009-03-13 符号化装置、復号装置およびこれらの方法

Publications (1)

Publication Number Publication Date
MX2010009307A true MX2010009307A (es) 2010-09-24

Family

ID=41064989

Family Applications (1)

Application Number Title Priority Date Filing Date
MX2010009307A MX2010009307A (es) 2008-03-14 2009-03-13 Dispositivo de codificacion, dispositivo de decodificacion y metodo de los mismos.

Country Status (9)

Country Link
US (1) US8452588B2 (es)
EP (2) EP3288034B1 (es)
JP (1) JP5449133B2 (es)
KR (1) KR101570550B1 (es)
CN (1) CN101971253B (es)
BR (1) BRPI0908929A2 (es)
MX (1) MX2010009307A (es)
RU (1) RU2483367C2 (es)
WO (1) WO2009113316A1 (es)

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EP3764356A1 (en) * 2009-06-23 2021-01-13 VoiceAge Corporation Forward time-domain aliasing cancellation with application in weighted or original signal domain
PL2491553T3 (pl) 2009-10-20 2017-05-31 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Koder audio, dekoder audio, sposób kodowania informacji audio, sposób dekodowania informacji audio i program komputerowy wykorzystujący iteracyjne zmniejszania rozmiaru przedziału
EP2500901B1 (en) 2009-11-12 2018-09-19 III Holdings 12, LLC Audio encoder apparatus and audio encoding method
EP2524374B1 (en) 2010-01-13 2018-10-31 Voiceage Corporation Audio decoding with forward time-domain aliasing cancellation using linear-predictive filtering
CN102844810B (zh) * 2010-04-14 2017-05-03 沃伊斯亚吉公司 用于在码激励线性预测编码器和解码器中使用的灵活和可缩放的组合式创新代码本
EP2581904B1 (en) * 2010-06-11 2015-10-07 Panasonic Intellectual Property Corporation of America Audio (de)coding apparatus and method
WO2011161886A1 (ja) * 2010-06-21 2011-12-29 パナソニック株式会社 復号装置、符号化装置およびこれらの方法
US9230551B2 (en) 2010-10-18 2016-01-05 Nokia Technologies Oy Audio encoder or decoder apparatus
EP3518234B1 (en) * 2010-11-22 2023-11-29 NTT DoCoMo, Inc. Audio encoding device and method
CN102610231B (zh) * 2011-01-24 2013-10-09 华为技术有限公司 一种带宽扩展方法及装置
US9418671B2 (en) * 2013-08-15 2016-08-16 Huawei Technologies Co., Ltd. Adaptive high-pass post-filter
US8879858B1 (en) * 2013-10-01 2014-11-04 Gopro, Inc. Multi-channel bit packing engine
US9786291B2 (en) * 2014-06-18 2017-10-10 Google Technology Holdings LLC Communicating information between devices using ultra high frequency audio
US10306632B2 (en) * 2014-09-30 2019-05-28 Qualcomm Incorporated Techniques for transmitting channel usage beacon signals over an unlicensed radio frequency spectrum band
EP3182411A1 (en) * 2015-12-14 2017-06-21 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Apparatus and method for processing an encoded audio signal
US10475471B2 (en) * 2016-10-11 2019-11-12 Cirrus Logic, Inc. Detection of acoustic impulse events in voice applications using a neural network
US10242696B2 (en) 2016-10-11 2019-03-26 Cirrus Logic, Inc. Detection of acoustic impulse events in voice applications
US20180336469A1 (en) * 2017-05-18 2018-11-22 Qualcomm Incorporated Sigma-delta position derivative networks

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DE69232202T2 (de) * 1991-06-11 2002-07-25 Qualcomm, Inc. Vocoder mit veraendlicher bitrate
SE501340C2 (sv) * 1993-06-11 1995-01-23 Ericsson Telefon Ab L M Döljande av transmissionsfel i en talavkodare
JP3747492B2 (ja) * 1995-06-20 2006-02-22 ソニー株式会社 音声信号の再生方法及び再生装置
SE0001926D0 (sv) * 2000-05-23 2000-05-23 Lars Liljeryd Improved spectral translation/folding in the subband domain
DE60208426T2 (de) 2001-11-02 2006-08-24 Matsushita Electric Industrial Co., Ltd., Kadoma Vorrichtung zur signalkodierung, signaldekodierung und system zum verteilen von audiodaten
JP3923783B2 (ja) * 2001-11-02 2007-06-06 松下電器産業株式会社 符号化装置及び復号化装置
JP4272897B2 (ja) 2002-01-30 2009-06-03 パナソニック株式会社 符号化装置、復号化装置およびその方法
DE60323331D1 (de) 2002-01-30 2008-10-16 Matsushita Electric Ind Co Ltd Verfahren und vorrichtung zur audio-kodierung und -dekodierung
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BRPI0510014B1 (pt) * 2004-05-14 2019-03-26 Panasonic Intellectual Property Corporation Of America Dispositivo de codificação, dispositivo de decodificação e método do mesmo
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Also Published As

Publication number Publication date
EP2251861A1 (en) 2010-11-17
EP3288034B1 (en) 2019-02-20
EP3288034A1 (en) 2018-02-28
JP5449133B2 (ja) 2014-03-19
US8452588B2 (en) 2013-05-28
KR20100134580A (ko) 2010-12-23
JPWO2009113316A1 (ja) 2011-07-21
US20100332221A1 (en) 2010-12-30
CN101971253B (zh) 2012-07-18
CN101971253A (zh) 2011-02-09
EP2251861B1 (en) 2017-11-22
RU2483367C2 (ru) 2013-05-27
RU2010137838A (ru) 2012-03-20
KR101570550B1 (ko) 2015-11-19
WO2009113316A1 (ja) 2009-09-17
BRPI0908929A2 (pt) 2016-09-13
EP2251861A4 (en) 2014-01-15

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