DE602005018346D1 - Unterstützung eines Wechsels zwischen Audiocodierer-Betriebsarten - Google Patents

Unterstützung eines Wechsels zwischen Audiocodierer-Betriebsarten

Info

Publication number
DE602005018346D1
DE602005018346D1 DE602005018346T DE602005018346T DE602005018346D1 DE 602005018346 D1 DE602005018346 D1 DE 602005018346D1 DE 602005018346 T DE602005018346 T DE 602005018346T DE 602005018346 T DE602005018346 T DE 602005018346T DE 602005018346 D1 DE602005018346 D1 DE 602005018346D1
Authority
DE
Germany
Prior art keywords
section
encoding
coder mode
switching
support
Prior art date
Legal status (The legal status 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 status listed.)
Active
Application number
DE602005018346T
Other languages
English (en)
Inventor
Pasi Ojala
Jari Maekinen
Ari Lakaniemi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nokia Oyj
Original Assignee
Nokia Oyj
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 Nokia Oyj filed Critical Nokia Oyj
Publication of DE602005018346D1 publication Critical patent/DE602005018346D1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • G10L19/16—Vocoder architecture
    • G10L19/18—Vocoders using multiple modes
    • G10L19/22—Mode decision, i.e. based on audio signal content versus external parameters

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Computational Linguistics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Analogue/Digital Conversion (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
  • Transmission And Conversion Of Sensor Element Output (AREA)
DE602005018346T 2004-05-19 2005-04-15 Unterstützung eines Wechsels zwischen Audiocodierer-Betriebsarten Active DE602005018346D1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10/848,971 US7596486B2 (en) 2004-05-19 2004-05-19 Encoding an audio signal using different audio coder modes
PCT/IB2005/001068 WO2005114654A1 (en) 2004-05-19 2005-04-15 Supporting a switch between audio coder modes

Publications (1)

Publication Number Publication Date
DE602005018346D1 true DE602005018346D1 (de) 2010-01-28

Family

ID=34964617

Family Applications (1)

Application Number Title Priority Date Filing Date
DE602005018346T Active DE602005018346D1 (de) 2004-05-19 2005-04-15 Unterstützung eines Wechsels zwischen Audiocodierer-Betriebsarten

Country Status (14)

Country Link
US (1) US7596486B2 (de)
EP (1) EP1747556B1 (de)
JP (1) JP2007538283A (de)
CN (1) CN1954367B (de)
AT (1) ATE452402T1 (de)
AU (1) AU2005246538B2 (de)
BR (1) BRPI0511158A (de)
CA (1) CA2566489A1 (de)
DE (1) DE602005018346D1 (de)
MX (1) MXPA06012616A (de)
RU (1) RU2006139794A (de)
TW (1) TW200609500A (de)
WO (1) WO2005114654A1 (de)
ZA (1) ZA200609562B (de)

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EP2144230A1 (de) 2008-07-11 2010-01-13 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Audiokodierungs-/Audiodekodierungsschema geringer Bitrate mit kaskadierten Schaltvorrichtungen
EP2144231A1 (de) * 2008-07-11 2010-01-13 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Audiokodierungs-/-dekodierungschema geringer Bitrate mit gemeinsamer Vorverarbeitung
CA2871498C (en) * 2008-07-11 2017-10-17 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Audio encoder and decoder for encoding and decoding audio samples
KR20100007738A (ko) * 2008-07-14 2010-01-22 한국전자통신연구원 음성/오디오 통합 신호의 부호화/복호화 장치
PT2146344T (pt) * 2008-07-17 2016-10-13 Fraunhofer Ges Forschung Esquema de codificação/descodificação de áudio com uma derivação comutável
EP2339577B1 (de) * 2008-09-18 2018-03-21 Electronics and Telecommunications Research Institute Kodierungsvorrichtung und dekodierungsvorrichtung zur transformation zwischen einem modifizierten cosinus-transformation kodierer und einem heterokodierer
EP2345030A2 (de) * 2008-10-08 2011-07-20 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Mehrauflösungsgeschaltetes audiokodierungs-/-dekodierungsschema
FR2936898A1 (fr) * 2008-10-08 2010-04-09 France Telecom Codage a echantillonnage critique avec codeur predictif
KR101797033B1 (ko) * 2008-12-05 2017-11-14 삼성전자주식회사 부호화 모드를 이용한 음성신호의 부호화/복호화 장치 및 방법
KR101622950B1 (ko) * 2009-01-28 2016-05-23 삼성전자주식회사 오디오 신호의 부호화 및 복호화 방법 및 그 장치
JP4977157B2 (ja) * 2009-03-06 2012-07-18 株式会社エヌ・ティ・ティ・ドコモ 音信号符号化方法、音信号復号方法、符号化装置、復号装置、音信号処理システム、音信号符号化プログラム、及び、音信号復号プログラム
EP3352168B1 (de) * 2009-06-23 2020-09-16 VoiceAge Corporation Forward time domain aliasing mit anwendung in gewichteter oder originaler signaldomäne
US8706272B2 (en) * 2009-08-14 2014-04-22 Apple Inc. Adaptive encoding and compression of audio broadcast data
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
EP2524374B1 (de) 2010-01-13 2018-10-31 Voiceage Corporation Audio-dekodierung mit vorwärts aliasing-unterdrückung im zeitbereich mittels linear-prädiktiver filterung
CN102934161B (zh) * 2010-06-14 2015-08-26 松下电器产业株式会社 音频混合编码装置以及音频混合解码装置
IL295473B2 (en) 2010-07-02 2023-10-01 Dolby Int Ab After–selective bass filter
FR2969805A1 (fr) * 2010-12-23 2012-06-29 France Telecom Codage bas retard alternant codage predictif et codage par transformee
CN107197488B (zh) * 2011-06-09 2020-05-22 松下电器（美国）知识产权公司 通信终端装置、通信方法以及集成电路
JP5197838B2 (ja) * 2011-12-06 2013-05-15 株式会社エヌ・ティ・ティ・ドコモ 音信号符号化方法、音信号復号方法、符号化装置、復号装置、音信号処理システム、音信号符号化プログラム、及び、音信号復号プログラム
CN102769591B (zh) 2012-06-21 2015-04-08 天地融科技股份有限公司 音频通信调制方式自适应的方法、系统、装置、电子签名工具
KR101434206B1 (ko) 2012-07-25 2014-08-27 삼성전자주식회사 신호 복호화 장치
EP2863386A1 (de) * 2013-10-18 2015-04-22 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Audiodecodierer, Vorrichtung zur Erzeugung von codierten Audioausgangsdaten und Verfahren zur Initialisierung eines Decodierers
EP2980794A1 (de) 2014-07-28 2016-02-03 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Audiocodierer und -decodierer mit einem Frequenzdomänenprozessor und Zeitdomänenprozessor
EP2980795A1 (de) * 2014-07-28 2016-02-03 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Audiokodierung und -decodierung mit Nutzung eines Frequenzdomänenprozessors, eines Zeitdomänenprozessors und eines Kreuzprozessors zur Initialisierung des Zeitdomänenprozessors
KR102423827B1 (ko) * 2015-08-10 2022-07-21 삼성전자주식회사 송신 장치 및 이의 제어 방법
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Also Published As

Publication number Publication date
ATE452402T1 (de) 2010-01-15
AU2005246538A1 (en) 2005-12-01
TW200609500A (en) 2006-03-16
BRPI0511158A (pt) 2007-12-04
JP2007538283A (ja) 2007-12-27
RU2006139794A (ru) 2008-06-27
CN1954367A (zh) 2007-04-25
US20050261900A1 (en) 2005-11-24
US7596486B2 (en) 2009-09-29
WO2005114654A1 (en) 2005-12-01
CA2566489A1 (en) 2005-12-01
MXPA06012616A (es) 2006-12-15
ZA200609562B (en) 2008-07-30
AU2005246538B2 (en) 2009-01-08
CN1954367B (zh) 2010-12-08
EP1747556A1 (de) 2007-01-31
EP1747556B1 (de) 2009-12-16

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