HK1254427A1 - 對音頻信號的時間伸縮改進變換編碼 - Google Patents

對音頻信號的時間伸縮改進變換編碼

Info

Publication number
HK1254427A1
HK1254427A1 HK18113511.3A HK18113511A HK1254427A1 HK 1254427 A1 HK1254427 A1 HK 1254427A1 HK 18113511 A HK18113511 A HK 18113511A HK 1254427 A1 HK1254427 A1 HK 1254427A1
Authority
HK
Hong Kong
Prior art keywords
transform coding
audio signals
time
derived
time warped
Prior art date
Application number
HK18113511.3A
Other languages
English (en)
Inventor
Lars Villemoes
Original Assignee
Dolby Int Ab
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 Int Ab filed Critical Dolby Int Ab
Publication of HK1254427A1 publication Critical patent/HK1254427A1/zh

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
    • G10L19/002—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
    • G10L19/022—Blocking, i.e. grouping of samples in time; Choice of analysis windows; Overlap factoring
    • 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
    • G10L19/04—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
    • G10L19/06—Determination or coding of the spectral characteristics, e.g. of the short-term prediction coefficients
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M7/00—Conversion of a code where information is represented by a given sequence or number of digits to a code where the same, similar or subset of information is represented by a different sequence or number of digits
    • H03M7/30—Compression; Expansion; Suppression of unnecessary data, e.g. redundancy reduction
    • 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)
  • Human Computer Interaction (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Theoretical Computer Science (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
HK18113511.3A 2005-11-03 2018-10-22 對音頻信號的時間伸縮改進變換編碼 HK1254427A1 (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US73351205P 2005-11-03 2005-11-03
US11/464,176 US7720677B2 (en) 2005-11-03 2006-08-11 Time warped modified transform coding of audio signals

Publications (1)

Publication Number Publication Date
HK1254427A1 true HK1254427A1 (zh) 2019-07-19

Family

ID=37507461

Family Applications (2)

Application Number Title Priority Date Filing Date
HK07110315A HK1105159A1 (en) 2005-11-03 2007-09-21 Time warped modified transform coding of audio signals
HK18113511.3A HK1254427A1 (zh) 2005-11-03 2018-10-22 對音頻信號的時間伸縮改進變換編碼

Family Applications Before (1)

Application Number Title Priority Date Filing Date
HK07110315A HK1105159A1 (en) 2005-11-03 2007-09-21 Time warped modified transform coding of audio signals

Country Status (14)

Country Link
US (3) US7720677B2 (zh)
EP (7) EP1953738B1 (zh)
JP (4) JP4927088B2 (zh)
KR (1) KR100959701B1 (zh)
CN (2) CN102592602B (zh)
AT (1) ATE395687T1 (zh)
DE (1) DE602006001194D1 (zh)
DK (1) DK1807825T3 (zh)
ES (5) ES2604758T3 (zh)
HK (2) HK1105159A1 (zh)
MY (1) MY141264A (zh)
PL (1) PL1807825T3 (zh)
TW (1) TWI320172B (zh)
WO (1) WO2007051548A1 (zh)

Families Citing this family (43)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7720677B2 (en) * 2005-11-03 2010-05-18 Coding Technologies Ab Time warped modified transform coding of audio signals
US8682652B2 (en) * 2006-06-30 2014-03-25 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Audio encoder, audio decoder and audio processor having a dynamically variable warping characteristic
US7873511B2 (en) * 2006-06-30 2011-01-18 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Audio encoder, audio decoder and audio processor having a dynamically variable warping characteristic
US8239190B2 (en) * 2006-08-22 2012-08-07 Qualcomm Incorporated Time-warping frames of wideband vocoder
US9653088B2 (en) 2007-06-13 2017-05-16 Qualcomm Incorporated Systems, methods, and apparatus for signal encoding using pitch-regularizing and non-pitch-regularizing coding
KR101380170B1 (ko) * 2007-08-31 2014-04-02 삼성전자주식회사 미디어 신호 인코딩/디코딩 방법 및 장치
TWI455064B (zh) * 2007-12-20 2014-10-01 Thomson Licensing 聲影文件突起映圖之決定方法和裝置
ATE518224T1 (de) 2008-01-04 2011-08-15 Dolby Int Ab Audiokodierer und -dekodierer
EP2107556A1 (en) 2008-04-04 2009-10-07 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Audio transform coding using pitch correction
AU2013206263B2 (en) * 2008-07-11 2015-05-28 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Providing a time warp activation signal and encoding an audio signal therewith
KR101400535B1 (ko) 2008-07-11 2014-05-28 프라운호퍼 게젤샤프트 쭈르 푀르데룽 데어 안겐반텐 포르슝 에. 베. 시간 워프 활성 신호의 제공 및 이를 이용한 오디오 신호의 인코딩
MY154452A (en) * 2008-07-11 2015-06-15 Fraunhofer Ges Forschung An apparatus and a method for decoding an encoded audio signal
EP2144231A1 (en) * 2008-07-11 2010-01-13 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Low bitrate audio encoding/decoding scheme with common preprocessing
EP2211335A1 (en) 2009-01-21 2010-07-28 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Apparatus, method and computer program for obtaining a parameter describing a variation of a signal characteristic of a signal
PL3751570T3 (pl) 2009-01-28 2022-03-07 Dolby International Ab Ulepszona transpozycja harmonicznych
PL3246919T3 (pl) * 2009-01-28 2021-03-08 Dolby International Ab Ulepszona transpozycja harmonicznych
KR101697497B1 (ko) 2009-09-18 2017-01-18 돌비 인터네셔널 에이비 입력 신호를 전위시키기 위한 시스템 및 방법, 및 상기 방법을 수행하기 위한 컴퓨터 프로그램이 기록된 컴퓨터 판독가능 저장 매체
CN102257564B (zh) * 2009-10-21 2013-07-10 松下电器产业株式会社 音频编码装置、解码装置、方法、电路及程序
US9338523B2 (en) * 2009-12-21 2016-05-10 Echostar Technologies L.L.C. Audio splitting with codec-enforced frame sizes
PL2532001T3 (pl) * 2010-03-10 2014-09-30 Fraunhofer Ges Forschung Dekoder sygnału audio, koder sygnału audio, sposoby i program komputerowy wykorzystujące zależne od częstotliwości próbkowania kodowanie krzywej dopasowania czasowego
EP2372703A1 (en) 2010-03-11 2011-10-05 Fraunhofer-Gesellschaft zur Förderung der Angewandten Forschung e.V. Signal processor, window provider, encoded media signal, method for processing a signal and method for providing a window
US9117461B2 (en) 2010-10-06 2015-08-25 Panasonic Corporation Coding device, decoding device, coding method, and decoding method for audio signals
SG192734A1 (en) 2011-02-14 2013-09-30 Fraunhofer Ges Forschung Apparatus and method for error concealment in low-delay unified speech and audio coding (usac)
MX2013009305A (es) 2011-02-14 2013-10-03 Fraunhofer Ges Forschung Generacion de ruido en codecs de audio.
BR112013020482B1 (pt) 2011-02-14 2021-02-23 Fraunhofer Ges Forschung aparelho e método para processar um sinal de áudio decodificado em um domínio espectral
MY160265A (en) * 2011-02-14 2017-02-28 Fraunhofer-Gesellschaft Zur Forderung Der Angewandten Forschung E V Apparatus and Method for Encoding and Decoding an Audio Signal Using an Aligned Look-Ahead Portion
EP2676264B1 (en) 2011-02-14 2015-01-28 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Audio encoder estimating background noise during active phases
ES2623291T3 (es) 2011-02-14 2017-07-10 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Codificación de una porción de una señal de audio utilizando una detección de transitorios y un resultado de calidad
MY159444A (en) 2011-02-14 2017-01-13 Fraunhofer-Gesellschaft Zur Forderung Der Angewandten Forschung E V Encoding and decoding of pulse positions of tracks of an audio signal
JP5800915B2 (ja) 2011-02-14 2015-10-28 フラウンホッファー−ゲゼルシャフト ツァ フェルダールング デァ アンゲヴァンテン フォアシュンク エー．ファオ オーディオ信号のトラックのパルス位置の符号化および復号化
JP5625126B2 (ja) 2011-02-14 2014-11-12 フラウンホーファー−ゲゼルシャフト・ツール・フェルデルング・デル・アンゲヴァンテン・フォルシュング・アインゲトラーゲネル・フェライン 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
SG185519A1 (en) * 2011-02-14 2012-12-28 Fraunhofer Ges Forschung Information signal representation using lapped transform
CA3234476A1 (en) 2013-01-08 2014-07-17 Dolby International Ab Model based prediction in a critically sampled filterbank
BR112015031825B1 (pt) * 2013-06-21 2021-12-28 Fraunhofer-Gesellschaft Zur Forderung Der Angewandten Forschung E.V. Controle jitter buffer, descodificador de áudio e método para controlar um fornecimento de um conteúdo de áudio descodificado
EP3321934B1 (en) * 2013-06-21 2024-04-10 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Time scaler, audio decoder, method and a computer program using a quality control
EP2830055A1 (en) * 2013-07-22 2015-01-28 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Context-based entropy coding of sample values of a spectral envelope
EP2830064A1 (en) 2013-07-22 2015-01-28 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Apparatus and method for decoding and encoding an audio signal using adaptive spectral tile selection
FR3020732A1 (fr) * 2014-04-30 2015-11-06 Orange Correction de perte de trame perfectionnee avec information de voisement
ES2614358T3 (es) * 2014-07-28 2017-05-30 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Selección de uno de un primer algoritmo de codificación y un segundo algoritmo de codificación usando reducción de armónicos
EP3107096A1 (en) * 2015-06-16 2016-12-21 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Downscaled decoding
EP3405951B1 (en) 2016-01-22 2019-11-13 Fraunhofer Gesellschaft zur Förderung der Angewand Apparatuses and methods for encoding or decoding a multi-channel audio signal using frame control synchronization
US11232804B2 (en) * 2017-07-03 2022-01-25 Dolby International Ab Low complexity dense transient events detection and coding
EP3483879A1 (en) * 2017-11-10 2019-05-15 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Analysis/synthesis windowing function for modulated lapped transformation

Family Cites Families (39)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3519830A1 (de) * 1985-06-03 1986-12-18 Ruhrkohle Ag, 4300 Essen Verfahren zur kohlehydrierung mit integrierten raffinationsstufen
JPH01233835A (ja) * 1988-03-14 1989-09-19 Mitsubishi Electric Corp 音声時間軸圧縮符号化装置
JPH0546199A (ja) * 1991-08-21 1993-02-26 Matsushita Electric Ind Co Ltd 音声符号化装置
JPH0784597A (ja) * 1993-09-20 1995-03-31 Fujitsu Ltd 音声符号化装置および音声復号化装置
WO1998006090A1 (en) 1996-08-02 1998-02-12 Universite De Sherbrooke Speech/audio coding with non-linear spectral-amplitude transformation
PL193723B1 (pl) * 1997-04-07 2007-03-30 Koninkl Philips Electronics Nv Sposób i urządzenie do kodowania sygnału mowy oraz sposób i urządzenie do dekodowania sygnału mowy
US6169970B1 (en) * 1998-01-08 2001-01-02 Lucent Technologies Inc. Generalized analysis-by-synthesis speech coding method and apparatus
US6182042B1 (en) * 1998-07-07 2001-01-30 Creative Technology Ltd. Sound modification employing spectral warping techniques
US6330533B2 (en) 1998-08-24 2001-12-11 Conexant Systems, Inc. Speech encoder adaptively applying pitch preprocessing with warping of target signal
US6502066B2 (en) * 1998-11-24 2002-12-31 Microsoft Corporation System for generating formant tracks by modifying formants synthesized from speech units
WO2000074039A1 (en) * 1999-05-26 2000-12-07 Koninklijke Philips Electronics N.V. Audio signal transmission system
US6959274B1 (en) * 1999-09-22 2005-10-25 Mindspeed Technologies, Inc. Fixed rate speech compression system and method
US6782360B1 (en) * 1999-09-22 2004-08-24 Mindspeed Technologies, Inc. Gain quantization for a CELP speech coder
JP2004513536A (ja) 2000-07-13 2004-04-30 クゥアルコム・インコーポレイテッド 最大距離ブロック符号化方式
BR0107420A (pt) 2000-11-03 2002-10-08 Koninkl Philips Electronics Nv Processos de codificação de um sinal de entrada e de decodificação, sinal modificado modelado, meio de armazenagem, decodificador, reprodutor de áudio, e ,aparelho para codificação de sinais
ATE336774T1 (de) * 2001-05-28 2006-09-15 Texas Instruments Inc Programmierbarer melodienerzeuger
US6941263B2 (en) * 2001-06-29 2005-09-06 Microsoft Corporation Frequency domain postfiltering for quality enhancement of coded speech
US6879955B2 (en) * 2001-06-29 2005-04-12 Microsoft Corporation Signal modification based on continuous time warping for low bit rate CELP coding
WO2003019527A1 (fr) * 2001-08-31 2003-03-06 Kabushiki Kaisha Kenwood Procede et appareil de generation d'un signal affecte d'un pas et procede et appareil de compression/decompression et de synthese d'un signal vocal l'utilisant
JP3994332B2 (ja) * 2001-09-27 2007-10-17 株式会社ケンウッド 音声信号圧縮装置、音声信号圧縮方法、及び、プログラム
US7555434B2 (en) 2002-07-19 2009-06-30 Nec Corporation Audio decoding device, decoding method, and program
CN1290036C (zh) 2002-12-30 2006-12-13 国际商业机器公司 根据机器可读词典建立概念知识的计算机系统及方法
EP1604354A4 (en) * 2003-03-15 2008-04-02 Mindspeed Tech Inc VOICE INDEX CONTROLS FOR CELP LANGUAGE CODING
US7587254B2 (en) * 2004-04-23 2009-09-08 Nokia Corporation Dynamic range control and equalization of digital audio using warped processing
US7433463B2 (en) 2004-08-10 2008-10-07 Clarity Technologies, Inc. Echo cancellation and noise reduction method
US7676362B2 (en) * 2004-12-31 2010-03-09 Motorola, Inc. Method and apparatus for enhancing loudness of a speech signal
US8155965B2 (en) * 2005-03-11 2012-04-10 Qualcomm Incorporated Time warping frames inside the vocoder by modifying the residual
US8355907B2 (en) * 2005-03-11 2013-01-15 Qualcomm Incorporated Method and apparatus for phase matching frames in vocoders
US7917561B2 (en) 2005-09-16 2011-03-29 Coding Technologies Ab Partially complex modulated filter bank
US7720677B2 (en) * 2005-11-03 2010-05-18 Coding Technologies Ab Time warped modified transform coding of audio signals
US7873511B2 (en) * 2006-06-30 2011-01-18 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Audio encoder, audio decoder and audio processor having a dynamically variable warping characteristic
US8010350B2 (en) * 2006-08-03 2011-08-30 Broadcom Corporation Decimated bisectional pitch refinement
EP2054878B1 (en) * 2006-08-15 2012-03-28 Broadcom Corporation Constrained and controlled decoding after packet loss
US8239190B2 (en) * 2006-08-22 2012-08-07 Qualcomm Incorporated Time-warping frames of wideband vocoder
MY146431A (en) * 2007-06-11 2012-08-15 Fraunhofer Ges Forschung Audio encoder for encoding an audio signal having an impulse-like portion and stationary portion, encoding methods, decoder, decoding method, and encoded audio signal
ATE518224T1 (de) * 2008-01-04 2011-08-15 Dolby Int Ab Audiokodierer und -dekodierer
MY154452A (en) * 2008-07-11 2015-06-15 Fraunhofer Ges Forschung An apparatus and a method for decoding an encoded audio signal
KR101400535B1 (ko) * 2008-07-11 2014-05-28 프라운호퍼 게젤샤프트 쭈르 푀르데룽 데어 안겐반텐 포르슝 에. 베. 시간 워프 활성 신호의 제공 및 이를 이용한 오디오 신호의 인코딩
CN102257564B (zh) * 2009-10-21 2013-07-10 松下电器产业株式会社 音频编码装置、解码装置、方法、电路及程序

Also Published As

Publication number Publication date
KR100959701B1 (ko) 2010-05-24
US8412518B2 (en) 2013-04-02
US20100204998A1 (en) 2010-08-12
KR20080066760A (ko) 2008-07-16
EP2306455B1 (en) 2017-09-27
CN101351840A (zh) 2009-01-21
JP6084595B2 (ja) 2017-02-22
EP3319086B1 (en) 2021-02-17
MY141264A (en) 2010-04-16
EP4290512A2 (en) 2023-12-13
EP1953738B1 (en) 2016-10-12
JP4927088B2 (ja) 2012-05-09
EP3852103A1 (en) 2021-07-21
HK1105159A1 (en) 2008-02-01
EP3852103B1 (en) 2023-11-29
DK1807825T3 (da) 2008-09-08
CN102592602B (zh) 2015-11-25
EP4290513A3 (en) 2024-02-14
US20130218579A1 (en) 2013-08-22
TWI320172B (en) 2010-02-01
JP2009515207A (ja) 2009-04-09
JP2015018274A (ja) 2015-01-29
EP4290513A2 (en) 2023-12-13
JP2012068660A (ja) 2012-04-05
CN102592602A (zh) 2012-07-18
EP1807825B1 (en) 2008-05-14
EP1807825A1 (en) 2007-07-18
JP6125324B2 (ja) 2017-05-10
EP4290512A3 (en) 2024-02-14
WO2007051548A1 (en) 2007-05-10
ES2307287T3 (es) 2008-11-16
JP2013210654A (ja) 2013-10-10
EP1953738A1 (en) 2008-08-06
CN101351840B (zh) 2012-04-04
ES2646814T3 (es) 2017-12-18
EP2306455A1 (en) 2011-04-06
DE602006001194D1 (de) 2008-06-26
JP5323164B2 (ja) 2013-10-23
US20070100607A1 (en) 2007-05-03
TW200719319A (en) 2007-05-16
US8838441B2 (en) 2014-09-16
ES2863667T3 (es) 2021-10-11
US7720677B2 (en) 2010-05-18
ES2967257T3 (es) 2024-04-29
EP3319086A1 (en) 2018-05-09
PL1807825T3 (pl) 2009-01-30
ATE395687T1 (de) 2008-05-15
ES2604758T3 (es) 2017-03-09

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