ATE301326T1 - Verfahren und vorrichtung zur konvertierung eines audiosignals zwischen unterschiedlichen datenkompressionsformaten - Google Patents

Verfahren und vorrichtung zur konvertierung eines audiosignals zwischen unterschiedlichen datenkompressionsformaten

Info

Publication number
ATE301326T1
ATE301326T1 AT01905928T AT01905928T ATE301326T1 AT E301326 T1 ATE301326 T1 AT E301326T1 AT 01905928 T AT01905928 T AT 01905928T AT 01905928 T AT01905928 T AT 01905928T AT E301326 T1 ATE301326 T1 AT E301326T1
Authority
AT
Austria
Prior art keywords
audio signal
converting
different data
data compression
compression formats
Prior art date
Application number
AT01905928T
Other languages
English (en)
Inventor
Michael Vincent Woodward
Gavin Robert Ferris
Original Assignee
Radioscape Ltd
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 Radioscape Ltd filed Critical Radioscape Ltd
Application granted granted Critical
Publication of ATE301326T1 publication Critical patent/ATE301326T1/de

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
    • G10L19/173—Transcoding, i.e. converting between two coded representations avoiding cascaded coding-decoding
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Signal Processing (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Computational Linguistics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
AT01905928T 2000-02-18 2001-02-19 Verfahren und vorrichtung zur konvertierung eines audiosignals zwischen unterschiedlichen datenkompressionsformaten ATE301326T1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB0003954.5A GB0003954D0 (en) 2000-02-18 2000-02-18 Method of and apparatus for converting a signal between data compression formats
PCT/GB2001/000690 WO2001061686A1 (en) 2000-02-18 2001-02-19 Method of and apparatus for converting an audio signal between data compression formats

Publications (1)

Publication Number Publication Date
ATE301326T1 true ATE301326T1 (de) 2005-08-15

Family

ID=9886021

Family Applications (1)

Application Number Title Priority Date Filing Date
AT01905928T ATE301326T1 (de) 2000-02-18 2001-02-19 Verfahren und vorrichtung zur konvertierung eines audiosignals zwischen unterschiedlichen datenkompressionsformaten

Country Status (7)

Country Link
US (1) US20030014241A1 (de)
EP (1) EP1259956B1 (de)
JP (1) JP2003523535A (de)
AT (1) ATE301326T1 (de)
DE (1) DE60112407T2 (de)
GB (2) GB0003954D0 (de)
WO (1) WO2001061686A1 (de)

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Publication number Priority date Publication date Assignee Title
JP3487250B2 (ja) * 2000-02-28 2004-01-13 日本電気株式会社 符号化音声信号形式変換装置
EP1315148A1 (de) * 2001-11-17 2003-05-28 Deutsche Thomson-Brandt Gmbh Bestimmung von Zusatzdaten in einem Audiodatenstrom
US7318027B2 (en) * 2003-02-06 2008-01-08 Dolby Laboratories Licensing Corporation Conversion of synthesized spectral components for encoding and low-complexity transcoding
US20040174998A1 (en) * 2003-03-05 2004-09-09 Xsides Corporation System and method for data encryption
KR100537517B1 (ko) * 2004-01-13 2005-12-19 삼성전자주식회사 오디오 데이타 변환 방법 및 장치
KR20060132697A (ko) * 2004-02-16 2006-12-21 코닌클리케 필립스 일렉트로닉스 엔.브이. 트랜스코더 및 트랜스코딩 방법
US20060047522A1 (en) * 2004-08-26 2006-03-02 Nokia Corporation Method, apparatus and computer program to provide predictor adaptation for advanced audio coding (AAC) system
FR2875351A1 (fr) * 2004-09-16 2006-03-17 France Telecom Procede de traitement de donnees par passage entre domaines differents de sous-bandes
JP4507127B2 (ja) * 2005-05-25 2010-07-21 三菱電機株式会社 ストリーム配信システム
US8599841B1 (en) 2006-03-28 2013-12-03 Nvidia Corporation Multi-format bitstream decoding engine
US8593469B2 (en) * 2006-03-29 2013-11-26 Nvidia Corporation Method and circuit for efficient caching of reference video data
US7884742B2 (en) * 2006-06-08 2011-02-08 Nvidia Corporation System and method for efficient compression of digital data
US8700387B2 (en) * 2006-09-14 2014-04-15 Nvidia Corporation Method and system for efficient transcoding of audio data
US20080215342A1 (en) * 2007-01-17 2008-09-04 Russell Tillitt System and method for enhancing perceptual quality of low bit rate compressed audio data
EP2099027A1 (de) * 2008-03-05 2009-09-09 Deutsche Thomson OHG Verfahren und Vorrichtung zur Umwandlung zwischen verschiedenen Filterbankdomänen
PL3992966T3 (pl) 2009-01-16 2023-03-20 Dolby International Ab Transpozycja harmonicznych rozszerzona o iloczyn wektorowy
US20110158310A1 (en) * 2009-12-30 2011-06-30 Nvidia Corporation Decoding data using lookup tables

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3639753A1 (de) * 1986-11-21 1988-06-01 Inst Rundfunktechnik Gmbh Verfahren zum uebertragen digitalisierter tonsignale
JP3123286B2 (ja) * 1993-02-18 2001-01-09 ソニー株式会社 ディジタル信号処理装置又は方法、及び記録媒体
NL9301358A (nl) * 1993-08-04 1995-03-01 Nederland Ptt Transcodeerinrichting.
EP0661885A1 (de) * 1993-12-28 1995-07-05 Canon Kabushiki Kaisha Bildverarbeitungsverfahren und Vorrichtung zur Umwandlung von in verschiedenen Formaten codierten Daten
TW432806B (en) * 1996-12-09 2001-05-01 Matsushita Electric Industrial Co Ltd Audio decoding device
US5845251A (en) * 1996-12-20 1998-12-01 U S West, Inc. Method, system and product for modifying the bandwidth of subband encoded audio data
GB2321577B (en) * 1997-01-27 2001-08-01 British Broadcasting Corp Audio compression
US5995923A (en) * 1997-06-26 1999-11-30 Nortel Networks Corporation Method and apparatus for improving the voice quality of tandemed vocoders
WO2000079770A1 (en) * 1999-06-23 2000-12-28 Neopoint, Inc. User customizable announcement

Also Published As

Publication number Publication date
GB0104035D0 (en) 2001-04-04
DE60112407T2 (de) 2006-05-24
EP1259956A1 (de) 2002-11-27
EP1259956B1 (de) 2005-08-03
GB2359468B (en) 2004-09-15
DE60112407D1 (de) 2005-09-08
US20030014241A1 (en) 2003-01-16
GB0003954D0 (en) 2000-04-12
WO2001061686A1 (en) 2001-08-23
JP2003523535A (ja) 2003-08-05
GB2359468A (en) 2001-08-22

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