DE60004814D1 - Quantisierung in perzeptuellen audiokodierern mit kompensation des durch den synthesefilter verschmierten rauschens - Google Patents

Quantisierung in perzeptuellen audiokodierern mit kompensation des durch den synthesefilter verschmierten rauschens

Info

Publication number
DE60004814D1
DE60004814D1 DE60004814T DE60004814T DE60004814D1 DE 60004814 D1 DE60004814 D1 DE 60004814D1 DE 60004814 T DE60004814 T DE 60004814T DE 60004814 T DE60004814 T DE 60004814T DE 60004814 D1 DE60004814 D1 DE 60004814D1
Authority
DE
Germany
Prior art keywords
lubricated
quantization
compensation
noise
synthesis filter
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.)
Expired - Lifetime
Application number
DE60004814T
Other languages
English (en)
Other versions
DE60004814T2 (de
Inventor
Wamanrao Ubale
Allen Davidson
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.)
Dolby Laboratories Licensing Corp
Original Assignee
Dolby Laboratories Licensing Corp
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 Dolby Laboratories Licensing Corp filed Critical Dolby Laboratories Licensing Corp
Application granted granted Critical
Publication of DE60004814D1 publication Critical patent/DE60004814D1/de
Publication of DE60004814T2 publication Critical patent/DE60004814T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • G10L19/032—Quantisation or dequantisation of spectral components
    • 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
    • G10L19/002—Dynamic bit allocation
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (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)
  • Spectroscopy & Molecular Physics (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
DE60004814T 1999-04-12 2000-04-10 Quantisierung in perzeptuellen audiokodierern mit kompensation des durch den synthesefilter verschmierten rauschens Expired - Lifetime DE60004814T2 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US289865 1999-04-12
US09/289,865 US6363338B1 (en) 1999-04-12 1999-04-12 Quantization in perceptual audio coders with compensation for synthesis filter noise spreading
PCT/US2000/009557 WO2000062434A1 (en) 1999-04-12 2000-04-10 Quantization in perceptual audio coders with compensation for synthesis filter noise spreading

Publications (2)

Publication Number Publication Date
DE60004814D1 true DE60004814D1 (de) 2003-10-02
DE60004814T2 DE60004814T2 (de) 2004-07-01

Family

ID=23113455

Family Applications (1)

Application Number Title Priority Date Filing Date
DE60004814T Expired - Lifetime DE60004814T2 (de) 1999-04-12 2000-04-10 Quantisierung in perzeptuellen audiokodierern mit kompensation des durch den synthesefilter verschmierten rauschens

Country Status (13)

Country Link
US (1) US6363338B1 (de)
EP (1) EP1177639B1 (de)
JP (1) JP4643019B2 (de)
KR (1) KR100758215B1 (de)
AR (1) AR024858A1 (de)
AT (1) ATE248463T1 (de)
AU (1) AU771869B2 (de)
CA (1) CA2366560C (de)
DE (1) DE60004814T2 (de)
HK (1) HK1044235B (de)
MY (1) MY120387A (de)
TW (1) TW531986B (de)
WO (1) WO2000062434A1 (de)

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SE0202159D0 (sv) 2001-07-10 2002-07-09 Coding Technologies Sweden Ab Efficientand scalable parametric stereo coding for low bitrate applications
US6987889B1 (en) * 2001-08-10 2006-01-17 Polycom, Inc. System and method for dynamic perceptual coding of macroblocks in a video frame
US6732071B2 (en) * 2001-09-27 2004-05-04 Intel Corporation Method, apparatus, and system for efficient rate control in audio encoding
ES2237706T3 (es) 2001-11-29 2005-08-01 Coding Technologies Ab Reconstruccion de componentes de alta frecuencia.
US7447631B2 (en) * 2002-06-17 2008-11-04 Dolby Laboratories Licensing Corporation Audio coding system using spectral hole filling
US20040030555A1 (en) * 2002-08-12 2004-02-12 Oregon Health & Science University System and method for concatenating acoustic contours for speech synthesis
SE0202770D0 (sv) * 2002-09-18 2002-09-18 Coding Technologies Sweden Ab Method for reduction of aliasing introduces by spectral envelope adjustment in real-valued filterbanks
US7376553B2 (en) * 2003-07-08 2008-05-20 Robert Patel Quinn Fractal harmonic overtone mapping of speech and musical sounds
EP1667109A4 (de) * 2003-09-17 2007-10-03 Beijing E World Technology Co Verfahren und einrichtung zur mehrfachauflösungs-vektorquantilisierung für die audiocodierung und -decodierung
US7539614B2 (en) * 2003-11-14 2009-05-26 Nxp B.V. System and method for audio signal processing using different gain factors for voiced and unvoiced phonemes
EP1711938A1 (de) * 2004-01-28 2006-10-18 Koninklijke Philips Electronics N.V. Audiosignaldecodierung durch verwendung komplexwertiger daten
DE102004009955B3 (de) * 2004-03-01 2005-08-11 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Vorrichtung und Verfahren zum Ermitteln einer Quantisierer-Schrittweite
US7512536B2 (en) * 2004-05-14 2009-03-31 Texas Instruments Incorporated Efficient filter bank computation for audio coding
US20060132595A1 (en) * 2004-10-15 2006-06-22 Kenoyer Michael L Speakerphone supporting video and audio features
US8116500B2 (en) * 2004-10-15 2012-02-14 Lifesize Communications, Inc. Microphone orientation and size in a speakerphone
US7970151B2 (en) * 2004-10-15 2011-06-28 Lifesize Communications, Inc. Hybrid beamforming
US7760887B2 (en) * 2004-10-15 2010-07-20 Lifesize Communications, Inc. Updating modeling information based on online data gathering
US7826624B2 (en) * 2004-10-15 2010-11-02 Lifesize Communications, Inc. Speakerphone self calibration and beam forming
US7720232B2 (en) * 2004-10-15 2010-05-18 Lifesize Communications, Inc. Speakerphone
US7903137B2 (en) * 2004-10-15 2011-03-08 Lifesize Communications, Inc. Videoconferencing echo cancellers
US7720236B2 (en) * 2004-10-15 2010-05-18 Lifesize Communications, Inc. Updating modeling information based on offline calibration experiments
US7751572B2 (en) * 2005-04-15 2010-07-06 Dolby International Ab Adaptive residual audio coding
US7970150B2 (en) * 2005-04-29 2011-06-28 Lifesize Communications, Inc. Tracking talkers using virtual broadside scan and directed beams
US7593539B2 (en) * 2005-04-29 2009-09-22 Lifesize Communications, Inc. Microphone and speaker arrangement in speakerphone
US7991167B2 (en) * 2005-04-29 2011-08-02 Lifesize Communications, Inc. Forming beams with nulls directed at noise sources
US7974713B2 (en) * 2005-10-12 2011-07-05 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Temporal and spatial shaping of multi-channel audio signals
US7835904B2 (en) * 2006-03-03 2010-11-16 Microsoft Corp. Perceptual, scalable audio compression
KR101393298B1 (ko) * 2006-07-08 2014-05-12 삼성전자주식회사 적응적 부호화/복호화 방법 및 장치
WO2008021247A2 (en) * 2006-08-15 2008-02-21 Dolby Laboratories Licensing Corporation Arbitrary shaping of temporal noise envelope without side-information
FR2912249A1 (fr) * 2007-02-02 2008-08-08 France Telecom Codage/decodage perfectionnes de signaux audionumeriques.
CN102132494B (zh) * 2008-04-16 2013-10-02 华为技术有限公司 通信方法和通信装置
US20100106269A1 (en) * 2008-09-26 2010-04-29 Qualcomm Incorporated Method and apparatus for signal processing using transform-domain log-companding
US11657788B2 (en) 2009-05-27 2023-05-23 Dolby International Ab Efficient combined harmonic transposition
TWI643187B (zh) 2009-05-27 2018-12-01 瑞典商杜比國際公司 從訊號的低頻成份產生該訊號之高頻成份的系統與方法，及其機上盒、電腦程式產品、軟體程式及儲存媒體
KR101599884B1 (ko) * 2009-08-18 2016-03-04 삼성전자주식회사 멀티 채널 오디오 디코딩 방법 및 장치
PL2489041T3 (pl) * 2009-10-15 2020-11-02 Voiceage Corporation Jednoczesne kształtowanie szumu w dziedzinie czasu i w dziedzinie częstotliwości dla przekształcenia tdac
JP5345737B2 (ja) * 2009-10-21 2013-11-20 ドルビー インターナショナル アーベー 結合されたトランスポーザーフィルターバンクにおけるオーバーサンプリング
US8958510B1 (en) * 2010-06-10 2015-02-17 Fredric J. Harris Selectable bandwidth filter
US9236063B2 (en) * 2010-07-30 2016-01-12 Qualcomm Incorporated Systems, methods, apparatus, and computer-readable media for dynamic bit allocation
US9208792B2 (en) 2010-08-17 2015-12-08 Qualcomm Incorporated Systems, methods, apparatus, and computer-readable media for noise injection
US9225310B1 (en) * 2012-11-08 2015-12-29 iZotope, Inc. Audio limiter system and method
US10325584B2 (en) 2014-12-10 2019-06-18 Stmicroelectronics S.R.L. Active noise cancelling device and method of actively cancelling acoustic noise
CN110870006B (zh) * 2017-04-28 2023-09-22 Dts公司 对音频信号进行编码的方法以及音频编码器
US10886943B2 (en) * 2019-03-18 2021-01-05 Samsung Electronics Co., Ltd Method and apparatus for variable rate compression with a conditional autoencoder

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JP3297050B2 (ja) * 1993-07-16 2002-07-02 ドルビー・ラボラトリーズ・ライセンシング・コーポレーション デコーダスペクトル歪み対応電算式適応ビット配分符号化方法及び装置
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EP0722225A3 (de) * 1994-11-17 2000-06-07 Deutsche Thomson-Brandt Gmbh Audiosignalkodierung mittels Kurzzeitspektren und einem psychoakustischen Modell
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Also Published As

Publication number Publication date
TW531986B (en) 2003-05-11
JP4643019B2 (ja) 2011-03-02
KR100758215B1 (ko) 2007-09-12
AU4338200A (en) 2000-11-14
AU771869B2 (en) 2004-04-01
KR20010112423A (ko) 2001-12-20
DE60004814T2 (de) 2004-07-01
EP1177639B1 (de) 2003-08-27
JP2002542648A (ja) 2002-12-10
HK1044235A1 (en) 2002-10-11
ATE248463T1 (de) 2003-09-15
HK1044235B (zh) 2003-12-24
US6363338B1 (en) 2002-03-26
CA2366560A1 (en) 2000-10-19
CA2366560C (en) 2008-07-29
MY120387A (en) 2005-10-31
EP1177639A1 (de) 2002-02-06
WO2000062434A1 (en) 2000-10-19
AR024858A1 (es) 2002-10-30

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