DE602006002739D1 - Audiokodierer, Audiodekodierer und Audioprozessor mit einer dynamisch variablen Warp-Charakteristik - Google Patents

Audiokodierer, Audiodekodierer und Audioprozessor mit einer dynamisch variablen Warp-Charakteristik

Info

Publication number
DE602006002739D1
DE602006002739D1 DE602006002739T DE602006002739T DE602006002739D1 DE 602006002739 D1 DE602006002739 D1 DE 602006002739D1 DE 602006002739 T DE602006002739 T DE 602006002739T DE 602006002739 T DE602006002739 T DE 602006002739T DE 602006002739 D1 DE602006002739 D1 DE 602006002739D1
Authority
DE
Germany
Prior art keywords
audio
filter
characteristic
processor
signal
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
DE602006002739T
Other languages
German (de)
English (en)
Inventor
Stefan Wabnik
Gerald Schuller
Juergen Herre
Bernhard Grill
Markus Multrus
Stefan Bayer
Ulrich Kraemer
Jens Hirschfeld
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.)
Fraunhofer Gesellschaft zur Forderung der Angewandten Forschung eV
Original Assignee
Fraunhofer Gesellschaft zur Forderung der Angewandten Forschung eV
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 Gesellschaft zur Forderung der Angewandten Forschung eV filed Critical Fraunhofer Gesellschaft zur Forderung der Angewandten Forschung eV
Publication of DE602006002739D1 publication Critical patent/DE602006002739D1/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
    • G10L19/20—Vocoders using multiple modes using sound class specific coding, hybrid encoders or object based coding
    • 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
    • G10L19/26—Pre-filtering or post-filtering
    • G10L19/265—Pre-filtering, e.g. high frequency emphasis prior to encoding

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)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
  • Stereophonic System (AREA)
DE602006002739T 2006-06-30 2006-06-30 Audiokodierer, Audiodekodierer und Audioprozessor mit einer dynamisch variablen Warp-Charakteristik Active DE602006002739D1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP06013604A EP1873754B1 (fr) 2006-06-30 2006-06-30 Codeur audio, décodeur audio et processeur audio à caractéristique de warping variable

Publications (1)

Publication Number Publication Date
DE602006002739D1 true DE602006002739D1 (de) 2008-10-23

Family

ID=37402718

Family Applications (1)

Application Number Title Priority Date Filing Date
DE602006002739T Active DE602006002739D1 (de) 2006-06-30 2006-06-30 Audiokodierer, Audiodekodierer und Audioprozessor mit einer dynamisch variablen Warp-Charakteristik

Country Status (4)

Country Link
EP (2) EP1990799A1 (fr)
AT (1) ATE408217T1 (fr)
DE (1) DE602006002739D1 (fr)
HK (1) HK1109817A1 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2445719C2 (ru) * 2010-04-21 2012-03-20 Государственное образовательное учреждение высшего профессионального образования Академия Федеральной службы охраны Российской Федерации (Академия ФСО России) Способ улучшения восприятия синтезированной речи при реализации процедуры анализа через синтез в вокодерах с линейным предсказанием
CA3160488C (fr) 2010-07-02 2023-09-05 Dolby International Ab Decodage audio avec post-filtrage selectif
AU2014211583B2 (en) 2013-01-29 2017-01-05 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Apparatus and method for selecting one of a first audio encoding algorithm and a second audio encoding algorithm
EP2980794A1 (fr) 2014-07-28 2016-02-03 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Codeur et décodeur audio utilisant un processeur du domaine fréquentiel et processeur de domaine temporel
EP2980801A1 (fr) 2014-07-28 2016-02-03 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Procédé d'estimation de bruit dans un signal audio, estimateur de bruit, encodeur audio, décodeur audio et système de transmission de signaux audio
EP2980795A1 (fr) 2014-07-28 2016-02-03 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Codage et décodage audio à l'aide d'un processeur de domaine fréquentiel, processeur de domaine temporel et processeur transversal pour l'initialisation du processeur de domaine temporel
EP3079151A1 (fr) * 2015-04-09 2016-10-12 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Codeur audio et procédé de codage d'un signal audio

Also Published As

Publication number Publication date
EP1873754B1 (fr) 2008-09-10
EP1873754A1 (fr) 2008-01-02
ATE408217T1 (de) 2008-09-15
EP1990799A1 (fr) 2008-11-12
HK1109817A1 (en) 2008-06-20

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