DE60012198D1 - Kodierung der hüllkurve des spektrums mittels variabler zeit/frequenz-auflösung - Google Patents

Kodierung der hüllkurve des spektrums mittels variabler zeit/frequenz-auflösung

Info

Publication number
DE60012198D1
DE60012198D1 DE60012198T DE60012198T DE60012198D1 DE 60012198 D1 DE60012198 D1 DE 60012198D1 DE 60012198 T DE60012198 T DE 60012198T DE 60012198 T DE60012198 T DE 60012198T DE 60012198 D1 DE60012198 D1 DE 60012198D1
Authority
DE
Germany
Prior art keywords
envelope
encoding
spectrum
variable time
frequency resolution
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
DE60012198T
Other languages
English (en)
Other versions
DE60012198T2 (de
Inventor
Gustaf Liljeryd
Kristofer Kjoerling
Per Ekstrand
Fredrik Henn
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.)
Coding Technologies Sweden AB
Original Assignee
Coding Technologies Sweden 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=20417226&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=DE60012198(D1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Priority claimed from SE9903552A external-priority patent/SE9903552D0/xx
Application filed by Coding Technologies Sweden AB filed Critical Coding Technologies Sweden AB
Publication of DE60012198D1 publication Critical patent/DE60012198D1/de
Application granted granted Critical
Publication of DE60012198T2 publication Critical patent/DE60012198T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; 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
    • G10L19/025—Detection of transients or attacks for time/frequency resolution switching
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; 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
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; 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
    • G10L19/0208—Subband vocoders
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; 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 OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; 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
    • G10L19/035—Scalar quantisation
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
    • G10L21/00—Processing of the speech or voice signal to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
    • G10L21/02—Speech enhancement, e.g. noise reduction or echo cancellation
    • G10L21/038—Speech enhancement, e.g. noise reduction or echo cancellation using band spreading techniques
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
    • G10L25/00—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00
    • G10L25/03—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 characterised by the type of extracted parameters
    • G10L25/18—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 characterised by the type of extracted parameters the extracted parameters being spectral information of each sub-band
DE60012198T 1999-10-01 2000-09-29 Kodierung der hüllkurve des spektrums mittels variabler zeit/frequenz-auflösung Expired - Lifetime DE60012198T2 (de)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
SE9903552 1999-10-01
SE9903552A SE9903552D0 (sv) 1999-01-27 1999-10-01 Efficient spectral envelope coding using dynamic scalefactor grouping and time/frequency switching
PCT/SE2000/000158 WO2000045378A2 (en) 1999-01-27 2000-01-26 Efficient spectral envelope coding using variable time/frequency resolution and time/frequency switching
WOPCT/SE00/00158 2000-01-26
PCT/SE2000/001887 WO2001026095A1 (en) 1999-10-01 2000-09-29 Efficient spectral envelope coding using variable time/frequency resolution and time/frequency switching

Publications (2)

Publication Number Publication Date
DE60012198D1 true DE60012198D1 (de) 2004-08-19
DE60012198T2 DE60012198T2 (de) 2005-08-18

Family

ID=20417226

Family Applications (1)

Application Number Title Priority Date Filing Date
DE60012198T Expired - Lifetime DE60012198T2 (de) 1999-10-01 2000-09-29 Kodierung der hüllkurve des spektrums mittels variabler zeit/frequenz-auflösung

Country Status (14)

Country Link
US (3) US6978236B1 (de)
EP (1) EP1216474B1 (de)
JP (3) JP4035631B2 (de)
CN (1) CN1172293C (de)
AT (1) ATE271250T1 (de)
AU (1) AU7821200A (de)
BR (1) BRPI0014642B1 (de)
DE (1) DE60012198T2 (de)
DK (1) DK1216474T3 (de)
ES (1) ES2223591T3 (de)
HK (1) HK1049401B (de)
PT (1) PT1216474E (de)
RU (1) RU2236046C2 (de)
WO (1) WO2001026095A1 (de)

Families Citing this family (124)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7742927B2 (en) 2000-04-18 2010-06-22 France Telecom Spectral enhancing method and device
JP4063670B2 (ja) * 2001-01-19 2008-03-19 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ 広帯域信号伝送システム
US7711123B2 (en) * 2001-04-13 2010-05-04 Dolby Laboratories Licensing Corporation Segmenting audio signals into auditory events
JP3469567B2 (ja) * 2001-09-03 2003-11-25 三菱電機株式会社 音響符号化装置、音響復号化装置、音響符号化方法及び音響復号化方法
US7469206B2 (en) * 2001-11-29 2008-12-23 Coding Technologies Ab Methods for improving high frequency reconstruction
DE60323331D1 (de) 2002-01-30 2008-10-16 Matsushita Electric Ind Co Ltd Verfahren und vorrichtung zur audio-kodierung und -dekodierung
US20030187663A1 (en) * 2002-03-28 2003-10-02 Truman Michael Mead Broadband frequency translation for high frequency regeneration
US7536305B2 (en) 2002-09-04 2009-05-19 Microsoft Corporation Mixed lossless audio compression
US7328150B2 (en) * 2002-09-04 2008-02-05 Microsoft Corporation Innovations in pure lossless audio compression
SE0301273D0 (sv) * 2003-04-30 2003-04-30 Coding Technologies Sweden Ab Advanced processing based on a complex-exponential-modulated filterbank and adaptive time signalling methods
BRPI0414444B1 (pt) * 2003-09-16 2020-05-05 Matsushita Electric Ind Co Ltd aparelho de codificação, aparelho de decodificação, método de codificação e método de decodificação
JP4767687B2 (ja) * 2003-10-07 2011-09-07 パナソニック株式会社 スペクトル包絡線符号化のための時間境界及び周波数分解能の決定方法
ATE354160T1 (de) * 2003-10-30 2007-03-15 Koninkl Philips Electronics Nv Audiosignalcodierung oder -decodierung
KR20060132697A (ko) * 2004-02-16 2006-12-21 코닌클리케 필립스 일렉트로닉스 엔.브이. 트랜스코더 및 트랜스코딩 방법
WO2005091275A1 (en) * 2004-03-17 2005-09-29 Koninklijke Philips Electronics N.V. Audio coding
JP4741476B2 (ja) 2004-04-23 2011-08-03 パナソニック株式会社 符号化装置
JP2008503766A (ja) * 2004-06-21 2008-02-07 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ オーディオエンコードの方法
US7720230B2 (en) * 2004-10-20 2010-05-18 Agere Systems, Inc. Individual channel shaping for BCC schemes and the like
KR100657916B1 (ko) * 2004-12-01 2006-12-14 삼성전자주식회사 주파수 대역간의 유사도를 이용한 오디오 신호 처리 장치및 방법
KR100721537B1 (ko) * 2004-12-08 2007-05-23 한국전자통신연구원 광대역 음성 부호화기의 고대역 음성 부호화 장치 및 그방법
CN102592604A (zh) * 2005-01-14 2012-07-18 松下电器产业株式会社 可扩展性解码装置及可扩展性解码方法
US7991610B2 (en) * 2005-04-13 2011-08-02 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Adaptive grouping of parameters for enhanced coding efficiency
US7788106B2 (en) * 2005-04-13 2010-08-31 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Entropy coding with compact codebooks
US20060235683A1 (en) * 2005-04-13 2006-10-19 Fraunhofer-Gesellschaft Zur Forderung Der Angewandten Forschung E.V. Lossless encoding of information with guaranteed maximum bitrate
US8612236B2 (en) * 2005-04-28 2013-12-17 Siemens Aktiengesellschaft Method and device for noise suppression in a decoded audio signal
DK1742509T3 (da) * 2005-07-08 2013-11-04 Oticon As Et system og en fremgangsmåde til eliminering af feedback og støj i et høreapparat
DE102005032724B4 (de) * 2005-07-13 2009-10-08 Siemens Ag Verfahren und Vorrichtung zur künstlichen Erweiterung der Bandbreite von Sprachsignalen
US8473298B2 (en) * 2005-11-01 2013-06-25 Apple Inc. Pre-resampling to achieve continuously variable analysis time/frequency resolution
JP4876574B2 (ja) 2005-12-26 2012-02-15 ソニー株式会社 信号符号化装置及び方法、信号復号装置及び方法、並びにプログラム及び記録媒体
US7590523B2 (en) * 2006-03-20 2009-09-15 Mindspeed Technologies, Inc. Speech post-processing using MDCT coefficients
US9159333B2 (en) 2006-06-21 2015-10-13 Samsung Electronics Co., Ltd. Method and apparatus for adaptively encoding and decoding high frequency band
WO2008004649A1 (en) 2006-07-07 2008-01-10 Nec Corporation Audio encoding device, audio encoding method, and program thereof
JP4757158B2 (ja) * 2006-09-20 2011-08-24 富士通株式会社 音信号処理方法、音信号処理装置及びコンピュータプログラム
CN101523486B (zh) * 2006-10-10 2013-08-14 高通股份有限公司 用于编码和解码音频信号的方法和设备
DE102006049154B4 (de) * 2006-10-18 2009-07-09 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Kodierung eines Informationssignals
US8126721B2 (en) * 2006-10-18 2012-02-28 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Encoding an information signal
US8041578B2 (en) 2006-10-18 2011-10-18 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Encoding an information signal
US8417532B2 (en) * 2006-10-18 2013-04-09 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Encoding an information signal
JP4918841B2 (ja) * 2006-10-23 2012-04-18 富士通株式会社 符号化システム
US8295507B2 (en) 2006-11-09 2012-10-23 Sony Corporation Frequency band extending apparatus, frequency band extending method, player apparatus, playing method, program and recording medium
JP5141180B2 (ja) 2006-11-09 2013-02-13 ソニー株式会社 周波数帯域拡大装置及び周波数帯域拡大方法、再生装置及び再生方法、並びに、プログラム及び記録媒体
US20080243518A1 (en) * 2006-11-16 2008-10-02 Alexey Oraevsky System And Method For Compressing And Reconstructing Audio Files
JP4967618B2 (ja) * 2006-11-24 2012-07-04 富士通株式会社 復号化装置および復号化方法
JP5103880B2 (ja) * 2006-11-24 2012-12-19 富士通株式会社 復号化装置および復号化方法
US20080208575A1 (en) * 2007-02-27 2008-08-28 Nokia Corporation Split-band encoding and decoding of an audio signal
JP4871894B2 (ja) * 2007-03-02 2012-02-08 パナソニック株式会社 符号化装置、復号装置、符号化方法および復号方法
JP4984983B2 (ja) * 2007-03-09 2012-07-25 富士通株式会社 符号化装置および符号化方法
WO2008114080A1 (en) * 2007-03-16 2008-09-25 Nokia Corporation Audio decoding
US8630863B2 (en) * 2007-04-24 2014-01-14 Samsung Electronics Co., Ltd. Method and apparatus for encoding and decoding audio/speech signal
US20090006081A1 (en) * 2007-06-27 2009-01-01 Samsung Electronics Co., Ltd. Method, medium and apparatus for encoding and/or decoding signal
WO2009001874A1 (ja) * 2007-06-27 2008-12-31 Nec Corporation オーディオ符号化方法、オーディオ復号方法、オーディオ符号化装置、オーディオ復号装置、プログラム、およびオーディオ符号化・復号システム
CN103594090B (zh) * 2007-08-27 2017-10-10 爱立信电话股份有限公司 使用时间分辨率能选择的低复杂性频谱分析/合成
US9495971B2 (en) 2007-08-27 2016-11-15 Telefonaktiebolaget Lm Ericsson (Publ) Transient detector and method for supporting encoding of an audio signal
CN101471072B (zh) * 2007-12-27 2012-01-25 华为技术有限公司 高频重建方法、编码装置和解码装置
US9159325B2 (en) * 2007-12-31 2015-10-13 Adobe Systems Incorporated Pitch shifting frequencies
EP2242048B1 (de) * 2008-01-09 2017-06-14 LG Electronics Inc. Verfahren und vorrichtung zur identifizierung von rahmentypen
KR101413968B1 (ko) * 2008-01-29 2014-07-01 삼성전자주식회사 오디오 신호의 부호화, 복호화 방법 및 장치
KR101441897B1 (ko) * 2008-01-31 2014-09-23 삼성전자주식회사 잔차 신호 부호화 방법 및 장치와 잔차 신호 복호화 방법및 장치
BRPI0906142B1 (pt) * 2008-03-10 2020-10-20 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e. V. dispositivo e método para a manipulação de um sinal de áudio tendo um evento transiente
US8386271B2 (en) 2008-03-25 2013-02-26 Microsoft Corporation Lossless and near lossless scalable audio codec
PL2346030T3 (pl) * 2008-07-11 2015-03-31 Fraunhofer Ges Forschung Koder audio, sposób kodowania sygnału audio oraz program komputerowy
WO2010003544A1 (en) * 2008-07-11 2010-01-14 Fraunhofer-Gesellschaft Zur Förderung Der Angewandtern Forschung E.V. An apparatus and a method for generating bandwidth extension output data
MY154452A (en) * 2008-07-11 2015-06-15 Fraunhofer Ges Forschung An apparatus and a method for decoding an encoded audio signal
JP5244971B2 (ja) * 2008-07-11 2013-07-24 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 オーディオ信号合成器及びオーディオ信号符号器
CA2730232C (en) 2008-07-11 2015-12-01 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. An apparatus and a method for decoding an encoded audio signal
US8326640B2 (en) * 2008-08-26 2012-12-04 Broadcom Corporation Method and system for multi-band amplitude estimation and gain control in an audio CODEC
KR20130133917A (ko) * 2008-10-08 2013-12-09 프라운호퍼 게젤샤프트 쭈르 푀르데룽 데어 안겐반텐 포르슝 에. 베. 다중 분해능 스위치드 오디오 부호화/복호화 방법
CN101751926B (zh) * 2008-12-10 2012-07-04 华为技术有限公司 信号编码、解码方法及装置、编解码系统
EP2360687A4 (de) * 2008-12-19 2012-07-11 Fujitsu Ltd Sprachbanderweiterungseinrichtung und sprachbanderweiterungsverfahren
PL2620941T3 (pl) 2009-01-16 2019-11-29 Dolby Int Ab Transpozycja harmonicznych rozszerzona o iloczyn wektorowy
KR101316979B1 (ko) * 2009-01-28 2013-10-11 프라운호퍼 게젤샤프트 쭈르 푀르데룽 데어 안겐반텐 포르슝 에. 베. 오디오 코딩
EP2214165A3 (de) * 2009-01-30 2010-09-15 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Vorrichtung, Verfahren und Computerprogramm zur Änderung eines Audiosignals mit einem Transientenereignis
EP2407963B1 (de) * 2009-03-11 2015-05-13 Huawei Technologies Co., Ltd. Verfahren, vorrichtung und system zur linearprädiktionsanalyse
RU2520329C2 (ru) 2009-03-17 2014-06-20 Долби Интернешнл Аб Усовершенствованное стереофоническое кодирование на основе комбинации адаптивно выбираемого левого/правого или среднего/побочного стереофонического кодирования и параметрического стереофонического кодирования
JP4932917B2 (ja) * 2009-04-03 2012-05-16 株式会社エヌ・ティ・ティ・ドコモ 音声復号装置、音声復号方法、及び音声復号プログラム
CN101866649B (zh) * 2009-04-15 2012-04-04 华为技术有限公司 语音编码处理方法与装置、语音解码处理方法与装置、通信系统
TWI675367B (zh) 2009-05-27 2019-10-21 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
US11657788B2 (en) 2009-05-27 2023-05-23 Dolby International Ab Efficient combined harmonic transposition
EP2273493B1 (de) * 2009-06-29 2012-12-19 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Bandbreitenerweiterungscodierung und -decodierung
US9105300B2 (en) 2009-10-19 2015-08-11 Dolby International Ab Metadata time marking information for indicating a section of an audio object
MY160807A (en) 2009-10-20 2017-03-31 Fraunhofer-Gesellschaft Zur Förderung Der Angewandten Audio encoder,audio decoder,method for encoding an audio information,method for decoding an audio information and computer program using a detection of a group of previously-decoded spectral values
CN102576541B (zh) 2009-10-21 2013-09-18 杜比国际公司 组合换位滤波器组的过采样
TWI484473B (zh) 2009-10-30 2015-05-11 Dolby Int Ab 用於從編碼位元串流擷取音訊訊號之節奏資訊、及估算音訊訊號之知覺顯著節奏的方法及系統
MY159982A (en) 2010-01-12 2017-02-15 Fraunhofer Ges Forschung Audio encoder, audio decoder, method for encoding and decoding an audio information, and computer program obtaining a context sub-region value on the basis of a norm of previously decoded spectral values
EP2372704A1 (de) * 2010-03-11 2011-10-05 Fraunhofer-Gesellschaft zur Förderung der Angewandten Forschung e.V. Signalprozessor und Verfahren zur Verarbeitung eines Signals
JP5850216B2 (ja) * 2010-04-13 2016-02-03 ソニー株式会社 信号処理装置および方法、符号化装置および方法、復号装置および方法、並びにプログラム
US9047875B2 (en) * 2010-07-19 2015-06-02 Futurewei Technologies, Inc. Spectrum flatness control for bandwidth extension
US8594167B2 (en) * 2010-08-25 2013-11-26 Indian Institute Of Science Determining spectral samples of a finite length sequence at non-uniformly spaced frequencies
US9008811B2 (en) 2010-09-17 2015-04-14 Xiph.org Foundation Methods and systems for adaptive time-frequency resolution in digital data coding
JP5707842B2 (ja) * 2010-10-15 2015-04-30 ソニー株式会社 符号化装置および方法、復号装置および方法、並びにプログラム
JP5724338B2 (ja) * 2010-12-03 2015-05-27 ソニー株式会社 符号化装置および符号化方法、復号装置および復号方法、並びにプログラム
JP5633431B2 (ja) 2011-03-02 2014-12-03 富士通株式会社 オーディオ符号化装置、オーディオ符号化方法及びオーディオ符号化用コンピュータプログラム
US9015042B2 (en) 2011-03-07 2015-04-21 Xiph.org Foundation Methods and systems for avoiding partial collapse in multi-block audio coding
WO2012122299A1 (en) 2011-03-07 2012-09-13 Xiph. Org. Bit allocation and partitioning in gain-shape vector quantization for audio coding
US8838442B2 (en) 2011-03-07 2014-09-16 Xiph.org Foundation Method and system for two-step spreading for tonal artifact avoidance in audio coding
CN102800317B (zh) * 2011-05-25 2014-09-17 华为技术有限公司 信号分类方法及设备、编解码方法及设备
RU2464649C1 (ru) * 2011-06-01 2012-10-20 Корпорация "САМСУНГ ЭЛЕКТРОНИКС Ко., Лтд." Способ обработки звукового сигнала
JP5807453B2 (ja) * 2011-08-30 2015-11-10 富士通株式会社 符号化方法、符号化装置および符号化プログラム
MX2014004797A (es) 2011-10-21 2014-09-22 Samsung Electronics Co Ltd Método y aparato de codificación sin perdida de energia, método y aparato de codificación de audio, método y aparato de decodificación sin perdida de energia y método y aparato de decodificación de audio.
JP5997592B2 (ja) * 2012-04-27 2016-09-28 株式会社Ｎｔｔドコモ 音声復号装置
EP2682941A1 (de) * 2012-07-02 2014-01-08 Technische Universität Ilmenau Vorrichtung, Verfahren und Computerprogramm für frei wählbare Frequenzverschiebungen in der Subband-Domäne
EP2717261A1 (de) 2012-10-05 2014-04-09 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Codierer, Decodierer und Verfahren für rückwärtskompatibles Spatial-Audio-Object-Coding mit mehreren Auflösungen
EP3279894B1 (de) * 2013-01-29 2020-04-01 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Audiocodierer, audiodecodierer, systeme, verfahren und computerprogramme mit erhöhter temporärer auflösung in zeitlicher nähe des einsetzens oder versatzes von frikativen oder affrikaten
RU2740690C2 (ru) 2013-04-05 2021-01-19 Долби Интернешнл Аб Звуковые кодирующее устройство и декодирующее устройство
US10431243B2 (en) * 2013-04-11 2019-10-01 Nec Corporation Signal processing apparatus, signal processing method, signal processing program
US9881624B2 (en) 2013-05-15 2018-01-30 Samsung Electronics Co., Ltd. Method and device for encoding and decoding audio signal
MY170179A (en) 2013-06-10 2019-07-09 Fraunhofer Ges Forschung Apparatus and method for audio signal envelope encoding, processing and decoding by splitting the audio signal envelope employing distribution quantization and coding
WO2014198726A1 (en) 2013-06-10 2014-12-18 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Apparatus and method for audio signal envelope encoding, processing and decoding by modelling a cumulative sum representation employing distribution quantization and coding
EP2830061A1 (de) 2013-07-22 2015-01-28 Fraunhofer Gesellschaft zur Förderung der angewandten Forschung e.V. Vorrichtung und Verfahren zur Codierung und Decodierung eines codierten Audiosignals unter Verwendung von zeitlicher Rausch-/Patch-Formung
EP2830058A1 (de) * 2013-07-22 2015-01-28 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Frequenzbereichsaudiocodierung mit Unterstützung von Transformationslängenschaltung
EP2830055A1 (de) * 2013-07-22 2015-01-28 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Kontextbasierte Entropiecodierung von Probenwerten einer spektralen Hüllkurve
WO2015057135A1 (en) * 2013-10-18 2015-04-23 Telefonaktiebolaget L M Ericsson (Publ) Coding and decoding of spectral peak positions
US20150149157A1 (en) * 2013-11-22 2015-05-28 Qualcomm Incorporated Frequency domain gain shape estimation
US9852722B2 (en) 2014-02-18 2017-12-26 Dolby International Ab Estimating a tempo metric from an audio bit-stream
GB2528460B (en) 2014-07-21 2018-05-30 Gurulogic Microsystems Oy Encoder, decoder and method
EP3182412B1 (de) * 2014-08-15 2023-06-07 Samsung Electronics Co., Ltd. Tonqualitätverbesserungsverfahren und -vorrichtung, tondecodierungsverfahren und -vorrichtung und multimediavorrichtung damit
CN105280190B (zh) * 2015-09-16 2018-11-23 深圳广晟信源技术有限公司 带宽扩展编码和解码方法以及装置
CN105261373B (zh) * 2015-09-16 2019-01-08 深圳广晟信源技术有限公司 用于带宽扩展编码的自适应栅格构造方法和装置
JP6763194B2 (ja) * 2016-05-10 2020-09-30 株式会社Ｊｖｃケンウッド 符号化装置、復号装置、通信システム
EP3382700A1 (de) * 2017-03-31 2018-10-03 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Vorrichtung und verfahren zur nachbearbeitung eines audiosignals mit transienten-positionserkennung
EP3649640A1 (de) * 2017-07-03 2020-05-13 Dolby International AB Detektion und codierung von dichten, transienten ereignissen mit geringer komplexität
CN108828427B (zh) * 2018-03-19 2020-10-27 深圳市共进电子股份有限公司 信号完整性测试的判据查找方法、装置、设备及存储介质
CN111210832A (zh) * 2018-11-22 2020-05-29 广州广晟数码技术有限公司 基于频谱包络模板的带宽扩展音频编解码方法及装置
CN113571073A (zh) * 2020-04-28 2021-10-29 华为技术有限公司 一种线性预测编码参数的编码方法和编码装置

Family Cites Families (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6439897A (en) 1987-08-06 1989-02-10 Canon Kk Communication control unit
EP0446037B1 (de) * 1990-03-09 1997-10-08 AT&T Corp. Hybride wahrnehmungsgebundene Kodierung von Audiosignalen
CN1062963C (zh) * 1990-04-12 2001-03-07 多尔拜实验特许公司 用于产生高质量声音信号的解码器和编码器
JP3144009B2 (ja) 1991-12-24 2001-03-07 日本電気株式会社 音声符号復号化装置
JP3088580B2 (ja) * 1993-02-19 2000-09-18 松下電器産業株式会社 変換符号化装置のブロックサイズ決定法
US5581653A (en) 1993-08-31 1996-12-03 Dolby Laboratories Licensing Corporation Low bit-rate high-resolution spectral envelope coding for audio encoder and decoder
JP3277692B2 (ja) 1994-06-13 2002-04-22 ソニー株式会社 情報符号化方法、情報復号化方法及び情報記録媒体
US6141353A (en) * 1994-09-15 2000-10-31 Oki Telecom, Inc. Subsequent frame variable data rate indication method for various variable data rate systems
US5682463A (en) * 1995-02-06 1997-10-28 Lucent Technologies Inc. Perceptual audio compression based on loudness uncertainty
US5852806A (en) 1996-03-19 1998-12-22 Lucent Technologies Inc. Switched filterbank for use in audio signal coding
JP3266819B2 (ja) * 1996-07-30 2002-03-18 株式会社エイ・ティ・アール人間情報通信研究所 周期信号変換方法、音変換方法および信号分析方法
JP3464371B2 (ja) 1996-11-15 2003-11-10 ノキア モービル フォーンズ リミテッド 不連続伝送中に快適雑音を発生させる改善された方法
SE9700772D0 (sv) * 1997-03-03 1997-03-03 Ericsson Telefon Ab L M A high resolution post processing method for a speech decoder
EP0878790A1 (de) 1997-05-15 1998-11-18 Hewlett-Packard Company Sprachkodiersystem und Verfahren
KR100330196B1 (ko) * 1997-05-16 2002-03-28 다치카와 게이지 가변길이 프레임 전송방법과 전송장치 및 수신장치
SE512719C2 (sv) 1997-06-10 2000-05-02 Lars Gustaf Liljeryd En metod och anordning för reduktion av dataflöde baserad på harmonisk bandbreddsexpansion
JP4216364B2 (ja) 1997-08-29 2009-01-28 株式会社東芝 音声符号化／復号化方法および音声信号の成分分離方法
DE19747132C2 (de) 1997-10-24 2002-11-28 Fraunhofer Ges Forschung Verfahren und Vorrichtungen zum Codieren von Audiosignalen sowie Verfahren und Vorrichtungen zum Decodieren eines Bitstroms
JP2000221988A (ja) * 1999-01-29 2000-08-11 Sony Corp データ処理装置、データ処理方法、プログラム提供媒体及び記録媒体
US6658382B1 (en) * 1999-03-23 2003-12-02 Nippon Telegraph And Telephone Corporation Audio signal coding and decoding methods and apparatus and recording media with programs therefor
US6604070B1 (en) * 1999-09-22 2003-08-05 Conexant Systems, Inc. System of encoding and decoding speech signals

Also Published As

Publication number Publication date
HK1049401A1 (en) 2003-05-09
JP2006065342A (ja) 2006-03-09
WO2001026095A1 (en) 2001-04-12
AU7821200A (en) 2001-05-10
JP2006031053A (ja) 2006-02-02
EP1216474A1 (de) 2002-06-26
US20060031064A1 (en) 2006-02-09
DK1216474T3 (da) 2004-10-04
JP4628921B2 (ja) 2011-02-09
DE60012198T2 (de) 2005-08-18
CN1377499A (zh) 2002-10-30
CN1172293C (zh) 2004-10-20
BR0014642A (pt) 2002-06-18
JP4035631B2 (ja) 2008-01-23
EP1216474B1 (de) 2004-07-14
US7191121B2 (en) 2007-03-13
JP4334526B2 (ja) 2009-09-30
ES2223591T3 (es) 2005-03-01
JP2003529787A (ja) 2003-10-07
ATE271250T1 (de) 2004-07-15
RU2236046C2 (ru) 2004-09-10
BRPI0014642B1 (pt) 2016-04-26
US6978236B1 (en) 2005-12-20
US7181389B2 (en) 2007-02-20
US20060031065A1 (en) 2006-02-09
PT1216474E (pt) 2004-11-30
HK1049401B (zh) 2005-11-18

Similar Documents

Publication Publication Date Title
DE60012198D1 (de) Kodierung der hüllkurve des spektrums mittels variabler zeit/frequenz-auflösung
SE9903552D0 (sv) Efficient spectral envelope coding using dynamic scalefactor grouping and time/frequency switching
JP2002521739A (ja) 音声データストリーム中への副データ挿入方法
AU7035298A (en) Method for signalling a noise substitution during audio signal coding
DK1514261T3 (da) Audiokodningssystem, der anvender udfyldning af spektrale huller
DK1914728T3 (da) Fremgangsmåde og apparat til dekodning af et signal under anvendelse af spektralbåndreplikation og interpolation af skalafaktorer
AU2002215282A1 (en) Enhancing the performance of coding systems that use high frequency reconstruction methods
EP0785631A3 (de) Formung des erkennbaren Rauschsignals in der Zeitdomäne mittels LPC-Voraussage im Frequenzraum
ES2160980T3 (es) Procedimiento y dispositivos para codificar seÑales discretas o para decodificar seÑales discretas codificadas
WO2002023532A2 (en) System of dynamic pulse position tracks for pulse-like excitation in speech coding
AU2001288995A1 (en) Method and apparatus for subtracting multiple rays of multiple interfering received signals
EP1204094A3 (de) Frequenzabhängige Langzeitprädiktionanalyse für Sprachkodierung
Li et al. Non-linear techniques for pitch and waveform enhancement in PWI coders

Legal Events

Date Code Title Description
8364 No opposition during term of opposition
R082 Change of representative

Ref document number: 1216474

Country of ref document: EP

Representative=s name: SCHOPPE, ZIMMERMANN, STOECKELER, ZINKLER & PARTNER