MX2007005103A - Codificacion y decodificacion de senales de audio utilizando bancos de filtros de valor complejo. - Google Patents

Codificacion y decodificacion de senales de audio utilizando bancos de filtros de valor complejo.

Info

Publication number
MX2007005103A
MX2007005103A MX2007005103A MX2007005103A MX2007005103A MX 2007005103 A MX2007005103 A MX 2007005103A MX 2007005103 A MX2007005103 A MX 2007005103A MX 2007005103 A MX2007005103 A MX 2007005103A MX 2007005103 A MX2007005103 A MX 2007005103A
Authority
MX
Mexico
Prior art keywords
subband
signal
time domain
subband signal
generates
Prior art date
Application number
MX2007005103A
Other languages
English (en)
Spanish (es)
Inventor
Lars F Villemoes
Erik G Schuijers
Original Assignee
Koninkl Philips Electronics Nv
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 Koninkl Philips Electronics Nv filed Critical Koninkl Philips Electronics Nv
Publication of MX2007005103A publication Critical patent/MX2007005103A/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
    • G10L19/02—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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (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)
  • Theoretical Computer Science (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
MX2007005103A 2004-11-02 2005-10-31 Codificacion y decodificacion de senales de audio utilizando bancos de filtros de valor complejo. MX2007005103A (es)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP04105457 2004-11-02
EP05108293 2005-09-09
PCT/IB2005/053545 WO2006048814A1 (en) 2004-11-02 2005-10-31 Encoding and decoding of audio signals using complex-valued filter banks

Publications (1)

Publication Number Publication Date
MX2007005103A true MX2007005103A (es) 2007-07-04

Family

ID=35530766

Family Applications (1)

Application Number Title Priority Date Filing Date
MX2007005103A MX2007005103A (es) 2004-11-02 2005-10-31 Codificacion y decodificacion de senales de audio utilizando bancos de filtros de valor complejo.

Country Status (11)

Country Link
US (1) US8255231B2 (enExample)
EP (1) EP1810281B1 (enExample)
JP (1) JP4939424B2 (enExample)
KR (1) KR101187597B1 (enExample)
CN (2) CN102148035B (enExample)
BR (1) BRPI0517234B1 (enExample)
ES (1) ES2791001T3 (enExample)
MX (1) MX2007005103A (enExample)
PL (1) PL1810281T3 (enExample)
RU (1) RU2407069C2 (enExample)
WO (1) WO2006048814A1 (enExample)

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KR101826331B1 (ko) 2010-09-15 2018-03-22 삼성전자주식회사 고주파수 대역폭 확장을 위한 부호화/복호화 장치 및 방법
JP5552988B2 (ja) * 2010-09-27 2014-07-16 富士通株式会社 音声帯域拡張装置および音声帯域拡張方法
CA2823175C (en) 2010-12-29 2016-07-26 Ki-Hyun Choo Apparatus and method for encoding/decoding for high-frequency bandwidth extension
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CN103366749B (zh) * 2012-03-28 2016-01-27 北京天籁传音数字技术有限公司 一种声音编解码装置及其方法
CN103366750B (zh) * 2012-03-28 2015-10-21 北京天籁传音数字技术有限公司 一种声音编解码装置及其方法
EP2682941A1 (de) * 2012-07-02 2014-01-08 Technische Universität Ilmenau Vorrichtung, Verfahren und Computerprogramm für frei wählbare Frequenzverschiebungen in der Subband-Domäne
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CA3012134C (en) 2013-01-08 2019-10-15 Dolby International Ab Model based prediction in a critically sampled filterbank
CN104078048B (zh) * 2013-03-29 2017-05-03 北京天籁传音数字技术有限公司 一种声音解码装置及其方法
RU2645271C2 (ru) * 2013-04-05 2018-02-19 Долби Интернэшнл Аб Стереофонический кодер и декодер аудиосигналов
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Also Published As

Publication number Publication date
JP2008519290A (ja) 2008-06-05
WO2006048814A1 (en) 2006-05-11
US20090063140A1 (en) 2009-03-05
BRPI0517234B1 (pt) 2019-07-02
ES2791001T3 (es) 2020-10-30
US8255231B2 (en) 2012-08-28
BRPI0517234A (pt) 2008-10-07
CN101053019A (zh) 2007-10-10
PL1810281T3 (pl) 2020-07-27
KR20070085681A (ko) 2007-08-27
CN102148035A (zh) 2011-08-10
RU2007120591A (ru) 2008-12-10
KR101187597B1 (ko) 2012-10-12
EP1810281A1 (en) 2007-07-25
RU2407069C2 (ru) 2010-12-20
JP4939424B2 (ja) 2012-05-23
CN101053019B (zh) 2012-01-25
EP1810281B1 (en) 2020-02-26
CN102148035B (zh) 2014-06-18

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