ATE540401T1 - Audiocodierungs-/decodierungsschema mit geringer bitrate mit gemeinsamer vorverarbeitung - Google Patents

Audiocodierungs-/decodierungsschema mit geringer bitrate mit gemeinsamer vorverarbeitung

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Publication number
ATE540401T1
ATE540401T1 AT09793882T AT09793882T ATE540401T1 AT E540401 T1 ATE540401 T1 AT E540401T1 AT 09793882 T AT09793882 T AT 09793882T AT 09793882 T AT09793882 T AT 09793882T AT E540401 T1 ATE540401 T1 AT E540401T1
Authority
AT
Austria
Prior art keywords
audio coding
decoding scheme
low bitrate
bitrate audio
preprocessing
Prior art date
Application number
AT09793882T
Other languages
English (en)
Inventor
Bernhard Grill
Stefan Bayer
Guillaume Fuchs
Stefan Geyersberger
Ralf Geiger
Johannes Hilpert
Ulrich Kraemer
Jeremie Lecomte
Markus Multrus
Max Neuendorf
Harald Popp
Nikolaus Rettelbach
Frederik Nagel
Sascha Disch
Juergen Herre
Yoshikazu Yokotani
Stefan Wabnik
Gerald Schuller
Jens Hirschfeld
Original Assignee
Fraunhofer Ges Forschung
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Application filed by Fraunhofer Ges Forschung filed Critical Fraunhofer Ges Forschung
Application granted granted Critical
Publication of ATE540401T1 publication Critical patent/ATE540401T1/de

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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
    • G10L19/18—Vocoders using multiple modes
    • 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
    • G10L19/0017—Lossless audio signal coding; Perfect reconstruction of coded audio signal by transmission of coding error
    • 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
    • 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
    • G10L19/08—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters
    • G10L19/12—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters the excitation function being a code excitation, e.g. in code excited linear prediction [CELP] 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
    • G10L19/008—Multichannel audio signal coding or decoding using interchannel correlation to reduce redundancy, e.g. joint-stereo, intensity-coding or matrixing
    • 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
    • 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
    • G10L2019/0001—Codebooks
    • G10L2019/0007—Codebook element generation
    • G10L2019/0008—Algebraic codebooks

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)
AT09793882T 2008-07-11 2009-07-06 Audiocodierungs-/decodierungsschema mit geringer bitrate mit gemeinsamer vorverarbeitung ATE540401T1 (de)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US7986108P 2008-07-11 2008-07-11
EP08017662 2008-10-08
EP09002272A EP2144231A1 (de) 2008-07-11 2009-02-18 Audiokodierungs-/-dekodierungschema geringer Bitrate mit gemeinsamer Vorverarbeitung
PCT/EP2009/004873 WO2010003617A1 (en) 2008-07-11 2009-07-06 Low bitrate audio encoding/decoding scheme with common preprocessing

Publications (1)

Publication Number Publication Date
ATE540401T1 true ATE540401T1 (de) 2012-01-15

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AT09793882T ATE540401T1 (de) 2008-07-11 2009-07-06 Audiocodierungs-/decodierungsschema mit geringer bitrate mit gemeinsamer vorverarbeitung

Country Status (18)

Country Link
US (1) US8804970B2 (de)
EP (2) EP2144231A1 (de)
JP (1) JP5325294B2 (de)
KR (3) KR101645783B1 (de)
CN (1) CN102124517B (de)
AR (1) AR072423A1 (de)
AT (1) ATE540401T1 (de)
AU (1) AU2009267432B2 (de)
BR (4) BR122021017391B1 (de)
CA (1) CA2730237C (de)
CO (1) CO6341673A2 (de)
ES (1) ES2380307T3 (de)
MX (1) MX2011000383A (de)
PL (1) PL2311035T3 (de)
RU (1) RU2483365C2 (de)
TW (1) TWI463486B (de)
WO (1) WO2010003617A1 (de)
ZA (1) ZA201009209B (de)

Families Citing this family (66)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
PL2304723T3 (pl) * 2008-07-11 2013-03-29 Fraunhofer Ges Forschung Urządzenie i sposób dekodowania zakodowanego sygnału audio
EP2144231A1 (de) 2008-07-11 2010-01-13 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Audiokodierungs-/-dekodierungschema geringer Bitrate mit gemeinsamer Vorverarbeitung
EP2144230A1 (de) * 2008-07-11 2010-01-13 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Audiokodierungs-/Audiodekodierungsschema geringer Bitrate mit kaskadierten Schaltvorrichtungen
JP5551694B2 (ja) * 2008-07-11 2014-07-16 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 多くのスペクトルエンベロープを計算するための装置および方法
EP2311034B1 (de) * 2008-07-11 2015-11-04 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Toncodierer und decodierer zur codierung von rahmen abgetasteter tonsignale
KR101797033B1 (ko) * 2008-12-05 2017-11-14 삼성전자주식회사 부호화 모드를 이용한 음성신호의 부호화/복호화 장치 및 방법
CA3045686C (en) 2010-04-09 2020-07-14 Dolby International Ab Audio upmixer operable in prediction or non-prediction mode
KR101697550B1 (ko) 2010-09-16 2017-02-02 삼성전자주식회사 멀티채널 오디오 대역폭 확장 장치 및 방법
ES2693229T3 (es) * 2010-10-25 2018-12-10 Voiceage Corporation Codificación de señales de audio genérico a bajas tasas de bits y bajo retardo
US9037456B2 (en) 2011-07-26 2015-05-19 Google Technology Holdings LLC Method and apparatus for audio coding and decoding
EP2600343A1 (de) * 2011-12-02 2013-06-05 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Vorrichtung und Verfahren zum Mischen von Raumtoncodierungsstreams auf Geometriebasis
US9043201B2 (en) * 2012-01-03 2015-05-26 Google Technology Holdings LLC Method and apparatus for processing audio frames to transition between different codecs
US9489962B2 (en) * 2012-05-11 2016-11-08 Panasonic Corporation Sound signal hybrid encoder, sound signal hybrid decoder, sound signal encoding method, and sound signal decoding method
EP2665208A1 (de) * 2012-05-14 2013-11-20 Thomson Licensing Verfahren und Vorrichtung zur Komprimierung und Dekomprimierung einer High Order Ambisonics-Signaldarstellung
AU2013345615B2 (en) * 2012-11-13 2017-05-04 Samsung Electronics Co., Ltd. Method and apparatus for determining encoding mode, method and apparatus for encoding audio signals, and method and apparatus for decoding audio signals
CA3210225A1 (en) 2012-11-15 2014-05-22 Ntt Docomo, Inc. Audio coding device, audio coding method, audio coding program, audio decoding device, audio decoding method, and audio decoding program
WO2014096236A2 (en) * 2012-12-19 2014-06-26 Dolby International Ab Signal adaptive fir/iir predictors for minimizing entropy
CA3012134C (en) 2013-01-08 2019-10-15 Dolby International Ab Model based prediction in a critically sampled filterbank
CA2979245C (en) * 2013-01-29 2019-10-15 Martin Dietz Concept for coding mode switching compensation
JP6179122B2 (ja) * 2013-02-20 2017-08-16 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、オーディオ符号化プログラム
PT3011563T (pt) * 2013-06-21 2020-03-31 Fraunhofer Ges Forschung Descodificação de áudio com reconstrução de quadros corrompidos ou não recebidos usando tcx ltp
EP2830047A1 (de) 2013-07-22 2015-01-28 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Vorrichtung und Verfahren zur verzögerungsarmen Codierung von Objektmetadaten
EP2830058A1 (de) 2013-07-22 2015-01-28 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Frequenzbereichsaudiocodierung mit Unterstützung von Transformationslängenschaltung
EP2830048A1 (de) 2013-07-22 2015-01-28 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Vorrichtung und Verfahren zur Realisierung eines SAOC-Downmix von 3D-Audioinhalt
EP2830053A1 (de) * 2013-07-22 2015-01-28 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Mehrkanaliger Audiodecodierer, mehrkanaliger Audiocodierer, Verfahren und Computerprogramm mit restsignalbasierter Anpassung einer Beteiligung eines dekorrelierten Signals
EP2830051A3 (de) 2013-07-22 2015-03-04 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Audiocodierer, Audiodecodierer, Verfahren und Computerprogramm mit gemeinsamen codierten Restsignalen
EP2830045A1 (de) * 2013-07-22 2015-01-28 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Konzept zur Audiocodierung und Audiodecodierung für Audiokanäle und Audioobjekte
US9666202B2 (en) * 2013-09-10 2017-05-30 Huawei Technologies Co., Ltd. Adaptive bandwidth extension and apparatus for the same
EP3779982B1 (de) 2013-10-18 2025-07-16 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Konzept zur codierung eines audiosignals und decodierung eines audiosignals mit deterministischen und rauschartigen informationen
KR101849613B1 (ko) 2013-10-18 2018-04-18 프라운호퍼 게젤샤프트 쭈르 푀르데룽 데어 안겐반텐 포르슝 에. 베. 스피치 관련 스펙트럼 정형 정보를 사용하는 오디오 신호의 인코딩 및 오디오 신호의 디코딩을 위한 개념
AU2014343905B2 (en) 2013-10-31 2017-11-30 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Audio decoder and method for providing a decoded audio information using an error concealment modifying a time domain excitation signal
SG11201603429SA (en) 2013-10-31 2016-05-30 Fraunhofer Ges Forschung Audio decoder and method for providing a decoded audio information using an error concealment based on a time domain excitation signal
EP3483881B1 (de) 2013-11-13 2024-10-02 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Codierer zur codierung eines audiosignals, audioübertragungssystem und verfahren zur bestimmung von korrekturwerten
FR3013496A1 (fr) * 2013-11-15 2015-05-22 Orange Transition d'un codage/decodage par transformee vers un codage/decodage predictif
EP2980797A1 (de) 2014-07-28 2016-02-03 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Audiodecodierer, Verfahren und Computerprogramm mit Zero-Input-Response zur Erzeugung eines sanften Übergangs
US9564136B2 (en) * 2014-03-06 2017-02-07 Dts, Inc. Post-encoding bitrate reduction of multiple object audio
BR122020015614B1 (pt) 2014-04-17 2022-06-07 Voiceage Evs Llc Método e dispositivo para interpolar parâmetros de filtro de predição linear em um quadro de processamento de sinal sonoro atual seguindo um quadro de processamento de sinal sonoro anterior
EP2980794A1 (de) * 2014-07-28 2016-02-03 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Audiocodierer und -decodierer mit einem Frequenzdomänenprozessor und Zeitdomänenprozessor
CN104269173B (zh) * 2014-09-30 2018-03-13 武汉大学深圳研究院 切换模式的音频带宽扩展装置与方法
EP3067886A1 (de) 2015-03-09 2016-09-14 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Audiocodierer zur codierung eines mehrkanalsignals und audiodecodierer zur decodierung eines codierten audiosignals
CN106205628B (zh) 2015-05-06 2018-11-02 小米科技有限责任公司 声音信号优化方法及装置
SG11201806256SA (en) 2016-01-22 2018-08-30 Fraunhofer Ges Forschung Apparatus and method for mdct m/s stereo with global ild with improved mid/side decision
EP3276620A1 (de) * 2016-07-29 2018-01-31 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Zeitbereichs-alias-reduktion für ungleichförmige filterbänke unter verwendung von spektralanalyse gefolgt von partieller synthese
DE102016214693B4 (de) 2016-08-08 2018-05-09 Steinbeiss-Forschungszentrum, Material Engineering Center Saarland Elektrisch leitendes Kontaktelement für einen elektrischen Steckverbinder, elektrischer Steckverbinder, der ein solches Kontaktelement umfasst, und Verfahren zum Einschließen eines Hilfsstoffes unter der Kontaktoberfläche eines solchen Kontaktelements
US10825467B2 (en) * 2017-04-21 2020-11-03 Qualcomm Incorporated Non-harmonic speech detection and bandwidth extension in a multi-source environment
KR102623514B1 (ko) * 2017-10-23 2024-01-11 삼성전자주식회사 음성신호 처리장치 및 그 동작방법
EP3483886A1 (de) 2017-11-10 2019-05-15 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Auswahl einer grundfrequenz
EP3483879A1 (de) 2017-11-10 2019-05-15 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Analyse-/synthese-fensterfunktion für modulierte geläppte transformation
EP3483878A1 (de) 2017-11-10 2019-05-15 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Audiodecoder mit auswahlfunktion für unterschiedliche verlustmaskierungswerkzeuge
EP3483880A1 (de) 2017-11-10 2019-05-15 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Zeitliche rauschformung
EP3483882A1 (de) 2017-11-10 2019-05-15 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Steuerung der bandbreite in codierern und/oder decodierern
EP3483883A1 (de) 2017-11-10 2019-05-15 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Audiokodierung und -dekodierung mit selektiver nachfilterung
EP3483884A1 (de) 2017-11-10 2019-05-15 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Signalfiltrierung
WO2019091576A1 (en) 2017-11-10 2019-05-16 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Audio encoders, audio decoders, methods and computer programs adapting an encoding and decoding of least significant bits
WO2019091573A1 (en) 2017-11-10 2019-05-16 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Apparatus and method for encoding and decoding an audio signal using downsampling or interpolation of scale parameters
MY203778A (en) 2017-11-17 2024-07-18 Fraunhofer Ges Zur Frderung Der Angewandten Forschung E V Apparatus and method for encoding or decoding directional audio coding parameters using different time/frequency resolutions
CN109036457B (zh) * 2018-09-10 2021-10-08 广州酷狗计算机科技有限公司 恢复音频信号的方法和装置
EP3719799A1 (de) * 2019-04-04 2020-10-07 FRAUNHOFER-GESELLSCHAFT zur Förderung der angewandten Forschung e.V. Mehrkanaliger audiocodierer, decodierer, verfahren und computerprogramm zum umschalten zwischen einem parametrischen mehrkanalbetrieb und einem einzelkanalbetrieb
US12142285B2 (en) 2019-06-24 2024-11-12 Qualcomm Incorporated Quantizing spatial components based on bit allocations determined for psychoacoustic audio coding
US12308034B2 (en) 2019-06-24 2025-05-20 Qualcomm Incorporated Performing psychoacoustic audio coding based on operating conditions
CN112447165B (zh) * 2019-08-15 2024-08-02 阿里巴巴集团控股有限公司 信息处理、模型训练和构建方法、电子设备、智能音箱
CN113129913B (zh) * 2019-12-31 2024-05-03 华为技术有限公司 音频信号的编解码方法和编解码装置
CN116547749B (zh) * 2020-10-05 2025-02-21 诺基亚技术有限公司 音频参数的量化
US12694880B2 (en) 2020-10-15 2026-07-28 Voiceage Corporation Method and device for audio band-width detection and audio band-width switching in an audio codec
EP4196981B1 (de) * 2021-01-22 2025-03-05 Google LLC Trainierte generative modellsprachcodierung
CN115223579B (zh) * 2021-04-20 2025-09-12 华为技术有限公司 一种编解码器协商与切换方法

Family Cites Families (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3317470B2 (ja) * 1995-03-28 2002-08-26 日本電信電話株式会社 音響信号符号化方法、音響信号復号化方法
JP4132109B2 (ja) * 1995-10-26 2008-08-13 ソニー株式会社 音声信号の再生方法及び装置、並びに音声復号化方法及び装置、並びに音声合成方法及び装置
JPH10124092A (ja) * 1996-10-23 1998-05-15 Sony Corp 音声符号化方法及び装置、並びに可聴信号符号化方法及び装置
SE9700772D0 (sv) * 1997-03-03 1997-03-03 Ericsson Telefon Ab L M A high resolution post processing method for a speech decoder
US6447490B1 (en) * 1997-08-07 2002-09-10 James Zhou Liu Vagina cleaning system for preventing pregnancy and sexually transmitted diseases
CA2249792C (en) * 1997-10-03 2009-04-07 Matsushita Electric Industrial Co. Ltd. Audio signal compression method, audio signal compression apparatus, speech signal compression method, speech signal compression apparatus, speech recognition method, and speech recognition apparatus
WO2001037263A1 (en) * 1999-11-16 2001-05-25 Koninklijke Philips Electronics N.V. Wideband audio transmission system
US6658383B2 (en) * 2001-06-26 2003-12-02 Microsoft Corporation Method for coding speech and music signals
CA2430923C (en) * 2001-11-14 2012-01-03 Matsushita Electric Industrial Co., Ltd. Encoding device, decoding device, and system thereof
US6785645B2 (en) * 2001-11-29 2004-08-31 Microsoft Corporation Real-time speech and music classifier
TW564400B (en) * 2001-12-25 2003-12-01 Univ Nat Cheng Kung Speech coding/decoding method and speech coder/decoder
US7752052B2 (en) * 2002-04-26 2010-07-06 Panasonic Corporation Scalable coder and decoder performing amplitude flattening for error spectrum estimation
AU2003208517A1 (en) * 2003-03-11 2004-09-30 Nokia Corporation Switching between coding schemes
US7756709B2 (en) * 2004-02-02 2010-07-13 Applied Voice & Speech Technologies, Inc. Detection of voice inactivity within a sound stream
CA2457988A1 (en) * 2004-02-18 2005-08-18 Voiceage Corporation Methods and devices for audio compression based on acelp/tcx coding and multi-rate lattice vector quantization
BRPI0418839A (pt) * 2004-05-17 2007-11-13 Nokia Corp método para suportar e dispositivo eletrÈnico suportando uma codificação de um sinal de áudio, sistema de codificação de áudio, e, produto de programa de software
US7596486B2 (en) * 2004-05-19 2009-09-29 Nokia Corporation Encoding an audio signal using different audio coder modes
US8423372B2 (en) * 2004-08-26 2013-04-16 Sisvel International S.A. Processing of encoded signals
US7949014B2 (en) * 2005-07-11 2011-05-24 Lg Electronics Inc. Apparatus and method of encoding and decoding audio signal
US7742913B2 (en) * 2005-10-24 2010-06-22 Lg Electronics Inc. Removing time delays in signal paths
US7720677B2 (en) * 2005-11-03 2010-05-18 Coding Technologies Ab Time warped modified transform coding of audio signals
KR100878816B1 (ko) * 2006-02-07 2009-01-14 엘지전자 주식회사 부호화/복호화 장치 및 방법
PL2038879T3 (pl) * 2006-06-30 2016-04-29 Fraunhofer Ges Forschung Koder audio i dekoder audio mające dynamicznie zmienną charakterystykę odkształcania
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
KR101434198B1 (ko) * 2006-11-17 2014-08-26 삼성전자주식회사 신호 복호화 방법
KR100964402B1 (ko) * 2006-12-14 2010-06-17 삼성전자주식회사 오디오 신호의 부호화 모드 결정 방법 및 장치와 이를 이용한 오디오 신호의 부호화/복호화 방법 및 장치
KR100883656B1 (ko) * 2006-12-28 2009-02-18 삼성전자주식회사 오디오 신호의 분류 방법 및 장치와 이를 이용한 오디오신호의 부호화/복호화 방법 및 장치
KR101379263B1 (ko) * 2007-01-12 2014-03-28 삼성전자주식회사 대역폭 확장 복호화 방법 및 장치
KR101452722B1 (ko) * 2008-02-19 2014-10-23 삼성전자주식회사 신호 부호화 및 복호화 방법 및 장치
EP2144231A1 (de) 2008-07-11 2010-01-13 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Audiokodierungs-/-dekodierungschema geringer Bitrate mit gemeinsamer Vorverarbeitung

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BR122021017287B1 (pt) 2022-02-22
AR072423A1 (es) 2010-08-25
AU2009267432B2 (en) 2012-12-13
JP2011527457A (ja) 2011-10-27
US20110200198A1 (en) 2011-08-18
KR101645783B1 (ko) 2016-08-04
PL2311035T3 (pl) 2012-06-29
ZA201009209B (en) 2011-09-28
EP2311035B1 (de) 2012-01-04
TW201007702A (en) 2010-02-16
JP5325294B2 (ja) 2013-10-23
CN102124517B (zh) 2012-12-19
KR20130092604A (ko) 2013-08-20
WO2010003617A1 (en) 2010-01-14
BR122020025711B1 (pt) 2021-10-13
CO6341673A2 (es) 2011-11-21
TWI463486B (zh) 2014-12-01
BR122020025776B1 (pt) 2021-09-28
RU2483365C2 (ru) 2013-05-27
KR20110040899A (ko) 2011-04-20
US8804970B2 (en) 2014-08-12
CA2730237C (en) 2015-03-31
MX2011000383A (es) 2011-02-25
KR101346894B1 (ko) 2014-01-02
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BR122021017391B1 (pt) 2022-02-22
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