ATE313118T1 - System und verfahren zum effizienten antialiasing im zeitbereich (tdac) - Google Patents

System und verfahren zum effizienten antialiasing im zeitbereich (tdac)

Info

Publication number
ATE313118T1
ATE313118T1 AT00910242T AT00910242T ATE313118T1 AT E313118 T1 ATE313118 T1 AT E313118T1 AT 00910242 T AT00910242 T AT 00910242T AT 00910242 T AT00910242 T AT 00910242T AT E313118 T1 ATE313118 T1 AT E313118T1
Authority
AT
Austria
Prior art keywords
mdct
tdac
domain
postmultiplication
premultiplication
Prior art date
Application number
AT00910242T
Other languages
English (en)
Inventor
Shay-Jan Huang
Original Assignee
Sony Electronics Inc
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 Sony Electronics Inc filed Critical Sony Electronics Inc
Application granted granted Critical
Publication of ATE313118T1 publication Critical patent/ATE313118T1/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
    • G10L19/02—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
    • G10L19/0212—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 orthogonal transformation

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Computational Linguistics (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Human Computer Interaction (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Complex Calculations (AREA)
  • Radio Relay Systems (AREA)
  • Telephonic Communication Services (AREA)
  • Tires In General (AREA)
AT00910242T 1999-02-26 2000-02-18 System und verfahren zum effizienten antialiasing im zeitbereich (tdac) ATE313118T1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/259,512 US6430529B1 (en) 1999-02-26 1999-02-26 System and method for efficient time-domain aliasing cancellation
PCT/US2000/004248 WO2000051108A1 (en) 1999-02-26 2000-02-18 System and method for efficient time-domain aliasing cancellation

Publications (1)

Publication Number Publication Date
ATE313118T1 true ATE313118T1 (de) 2005-12-15

Family

ID=22985255

Family Applications (1)

Application Number Title Priority Date Filing Date
AT00910242T ATE313118T1 (de) 1999-02-26 2000-02-18 System und verfahren zum effizienten antialiasing im zeitbereich (tdac)

Country Status (9)

Country Link
US (1) US6430529B1 (de)
EP (1) EP1074020B1 (de)
JP (1) JP4031909B2 (de)
KR (1) KR100710013B1 (de)
AT (1) ATE313118T1 (de)
AU (1) AU3236700A (de)
CA (1) CA2329484A1 (de)
DE (1) DE60024729T2 (de)
WO (1) WO2000051108A1 (de)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6735561B1 (en) * 2000-03-29 2004-05-11 At&T Corp. Effective deployment of temporal noise shaping (TNS) filters
US6959222B1 (en) * 2000-04-13 2005-10-25 New Japan Radio Co., Ltd. Accelerator engine for processing functions used in audio algorithms
US6754618B1 (en) * 2000-06-07 2004-06-22 Cirrus Logic, Inc. Fast implementation of MPEG audio coding
EP1397798B1 (de) * 2001-06-08 2006-04-12 STMicroelectronics Asia Pacific Pte Ltd. Vereinheitlichte filterbank zur kodierung von audiosignalen
WO2004008806A1 (en) * 2002-07-16 2004-01-22 Koninklijke Philips Electronics N.V. Audio coding
KR100477701B1 (ko) * 2002-11-07 2005-03-18 삼성전자주식회사 Ｍｐｅｇ 오디오 인코딩 방법 및 ｍｐｅｇ 오디오 인코딩장치
WO2004042722A1 (en) * 2002-11-07 2004-05-21 Samsung Electronics Co., Ltd. Mpeg audio encoding method and apparatus
US6965859B2 (en) * 2003-02-28 2005-11-15 Xvd Corporation Method and apparatus for audio compression
AU2004267843B2 (en) * 2003-08-22 2011-03-24 Mastercard International Incorporated Methods and systems for predicting business behavior from profiling consumer card transactions
US7516064B2 (en) * 2004-02-19 2009-04-07 Dolby Laboratories Licensing Corporation Adaptive hybrid transform for signal analysis and synthesis
US8214200B2 (en) * 2007-03-14 2012-07-03 Xfrm, Inc. Fast MDCT (modified discrete cosine transform) approximation of a windowed sinusoid
CA2698039C (en) * 2007-08-27 2016-05-17 Telefonaktiebolaget Lm Ericsson (Publ) Low-complexity spectral analysis/synthesis using selectable time resolution
US20090180531A1 (en) * 2008-01-07 2009-07-16 Radlive Ltd. codec with plc capabilities
EP2375409A1 (de) * 2010-04-09 2011-10-12 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Audiocodierer, Audiodecodierer und zugehörige Verfahren zur Verarbeitung von Mehrkanal-Audiosignalen mithilfe einer komplexen Vorhersage
EA030776B9 (ru) 2011-03-28 2019-01-31 Долби Лабораторис Лайсэнзин Корпорейшн Преобразование пониженной сложности для канала низкочастотных эффектов
FR2977969A1 (fr) 2011-07-12 2013-01-18 France Telecom Adaptation de fenetres de ponderation d'analyse ou de synthese pour un codage ou decodage par transformee
JP6113294B2 (ja) * 2012-11-07 2017-04-12 ドルビー・インターナショナル・アーベー 軽減された計算量の変換器ｓｎｒ計算
US10438597B2 (en) 2017-08-31 2019-10-08 Dolby International Ab Decoder-provided time domain aliasing cancellation during lossy/lossless transitions

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5297236A (en) 1989-01-27 1994-03-22 Dolby Laboratories Licensing Corporation Low computational-complexity digital filter bank for encoder, decoder, and encoder/decoder
US5230038A (en) 1989-01-27 1993-07-20 Fielder Louis D Low bit rate transform coder, decoder, and encoder/decoder for high-quality audio
IE903395A1 (en) * 1989-09-26 1991-04-10 Takeda Chemical Industries Ltd Triazole compounds, their production and use
FR2675969B1 (fr) * 1991-04-24 1994-02-11 France Telecom Procede et dispositif de codage-decodage d'un signal numerique.
US5727119A (en) * 1995-03-27 1998-03-10 Dolby Laboratories Licensing Corporation Method and apparatus for efficient implementation of single-sideband filter banks providing accurate measures of spectral magnitude and phase
US5781888A (en) * 1996-01-16 1998-07-14 Lucent Technologies Inc. Perceptual noise shaping in the time domain via LPC prediction in the frequency domain
US5890106A (en) * 1996-03-19 1999-03-30 Dolby Laboratories Licensing Corporation Analysis-/synthesis-filtering system with efficient oddly-stacked singleband filter bank using time-domain aliasing cancellation
US5845249A (en) * 1996-05-03 1998-12-01 Lsi Logic Corporation Microarchitecture of audio core for an MPEG-2 and AC-3 decoder
TW301103B (en) 1996-09-07 1997-03-21 Nat Science Council The time domain alias cancellation device and its signal processing method
US6304847B1 (en) * 1996-11-20 2001-10-16 Samsung Electronics, Co., Ltd. Method of implementing an inverse modified discrete cosine transform (IMDCT) in a dial-mode audio decoder
US6119080A (en) * 1998-06-17 2000-09-12 Formosoft International Inc. Unified recursive decomposition architecture for cosine modulated filter banks
US6119038A (en) * 1998-11-20 2000-09-12 Proventure, Llc Handheld skin treatment system and method
FR2960689B1 (fr) * 2010-05-28 2013-05-10 Univ Bordeaux 1 Procedes d'ecriture et de lecture de donnees par fluorescence sur un support photosensible, support et dispositifs associes.

Also Published As

Publication number Publication date
KR100710013B1 (ko) 2007-04-20
EP1074020B1 (de) 2005-12-14
KR20010042633A (ko) 2001-05-25
AU3236700A (en) 2000-09-14
US6430529B1 (en) 2002-08-06
WO2000051108A1 (en) 2000-08-31
CA2329484A1 (en) 2000-08-31
DE60024729D1 (de) 2006-01-19
JP4031909B2 (ja) 2008-01-09
EP1074020A1 (de) 2001-02-07
JP2002538644A (ja) 2002-11-12
DE60024729T2 (de) 2006-08-17

Similar Documents

Publication Publication Date Title
ATE313118T1 (de) System und verfahren zum effizienten antialiasing im zeitbereich (tdac)
Verma et al. Transient Modeling Synthesis: a flexible analysis/synthesis tool for transient signals.
JP5625126B2 (ja) スペクトル領域ノイズ整形を使用する線形予測ベースコーディングスキーム
KR101435413B1 (ko) 고주파수 신호 복호화 방법 및 장치
Verma et al. An analysis/synthesis tool for transient signals that allows a flexible sines+ transients+ noise model for audio
ATE449406T1 (de) Verfahren und vorrichtung für die dekodierung eines signals mittels spektralbandreplikation und interpolation von skalenfaktoren
ATE482451T1 (de) Verfahren und vorrichtung zum codieren und decodieren eines mehrkanaligen audiosignals unter verwendung von virtuelle-quelle-ortsinformationen
ATE182025T1 (de) Verfahren und vorrichtung zur effizienten implementierung von einseitenband-filterbänken, die genaue werte der spektralen amplitude und phase erzeugen
CN107705801A (zh) 语音带宽扩展模型的训练方法及语音带宽扩展方法
EP4375995B1 (de) Vorrichtung und verfahren zur kodierung und dekodierung eines audiosignals unter verwendung von downsampling oder interpolation von skalenparametern
CN112424861B (zh) 多声道音频编码
IL176477A0 (en) Improved coding techniques using estimated spectral magnitude and phase derived from mdct coefficients
Kanhe et al. Robust image-in-audio watermarking technique based on DCT-SVD transform
ATE282883T1 (de) Verfahren und vorrichtung zum verarbeiten von zeitdiskreten audio-abtastwerten
DE60212617D1 (de) Vorrichtung zur sprachverbesserung
EP1495465A4 (de) Verfahren zur modellierung von beträgen von sprache-oberwellen
Thompson et al. A non-uniform modulation transform for audio coding with increased time resolution
Xu et al. Autocorrelation analysis of speech signals using Fermat number transform (FNT)
Jang et al. Multiresolution sinusoidal model with dynamic segmentation for timescale modification of polyphonic audio signals
CN107358959B (zh) 多声道信号的编码方法和编码器
vd Boogaart et al. Fast Gabor transformation for processing high quality audio
DE60030827D1 (de) Tragbares informationsteminal, verfahren zur verarbeitung von audiodaten, aufzeichnungsmedium und programm
KR101411297B1 (ko) 저주파 효과 채널에 대한 복잡성 감소 변환
KR100214617B1 (ko) 디지탈 오디오 엔코더/디코더의 필터뱅크 연산 방법
Makwana et al. Analysis of performance of fast Fourier transformation of an audio file

Legal Events

Date Code Title Description
RER Ceased as to paragraph 5 lit. 3 law introducing patent treaties