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BR9808162B1 - método de pós-processamento para um decodificador de voz. - Google Patents

método de pós-processamento para um decodificador de voz.

Info

Publication number
BR9808162B1
BR9808162B1 BRPI9808162-4A BR9808162A BR9808162B1 BR 9808162 B1 BR9808162 B1 BR 9808162B1 BR 9808162 A BR9808162 A BR 9808162A BR 9808162 B1 BR9808162 B1 BR 9808162B1
Authority
BR
Brazil
Prior art keywords
voice decoder
postprocessing method
postprocessing
decoder
voice
Prior art date
Application number
BRPI9808162-4A
Other languages
English (en)
Other versions
BR9808162A (pt
Inventor
Erik Ekudden
Roar Hagen
Bastiaan Kleijn
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 filed Critical
Publication of BR9808162A publication Critical patent/BR9808162A/pt
Publication of BR9808162B1 publication Critical patent/BR9808162B1/pt

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
    • G10L19/04—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
    • G10L19/26—Pre-filtering or post-filtering
    • 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
    • G10L13/00—Speech synthesis; Text to speech systems
    • 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
    • G10L21/00—Speech or voice signal processing techniques 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
    • G10L21/0208—Noise filtering
    • G10L21/0216—Noise filtering characterised by the method used for estimating noise
    • G10L21/0232—Processing in the frequency domain
    • 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
    • G10L25/00—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00
    • G10L25/27—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 characterised by the analysis technique

Landscapes

  • Engineering & Computer Science (AREA)
  • Computational Linguistics (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
  • Mobile Radio Communication Systems (AREA)
BRPI9808162-4A 1997-03-03 1998-02-17 método de pós-processamento para um decodificador de voz. BR9808162B1 (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE9700772A SE9700772D0 (sv) 1997-03-03 1997-03-03 A high resolution post processing method for a speech decoder
PCT/SE1998/000280 WO1998039768A1 (en) 1997-03-03 1998-02-17 A high resolution post processing method for a speech decoder

Publications (2)

Publication Number Publication Date
BR9808162A BR9808162A (pt) 2000-03-28
BR9808162B1 true BR9808162B1 (pt) 2009-05-05

Family

ID=20406015

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI9808162-4A BR9808162B1 (pt) 1997-03-03 1998-02-17 método de pós-processamento para um decodificador de voz.

Country Status (12)

Country Link
US (1) US6138093A (pt)
EP (1) EP0965123B1 (pt)
JP (1) JP4274586B2 (pt)
KR (1) KR20000075936A (pt)
CN (1) CN1254433A (pt)
AU (1) AU6640998A (pt)
BR (1) BR9808162B1 (pt)
CA (1) CA2282693A1 (pt)
DE (1) DE69810754T2 (pt)
RU (1) RU2199157C2 (pt)
SE (1) SE9700772D0 (pt)
WO (1) WO1998039768A1 (pt)

Families Citing this family (60)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE69736446T2 (de) 1997-12-24 2007-03-29 Mitsubishi Denki K.K. Audio Dekodierverfahren und -vorrichtung
JPH11205166A (ja) * 1998-01-19 1999-07-30 Mitsubishi Electric Corp ノイズ検出装置
GB2342829B (en) * 1998-10-13 2003-03-26 Nokia Mobile Phones Ltd Postfilter
JP2001069597A (ja) * 1999-06-22 2001-03-16 Yamaha Corp 音声処理方法及び装置
US6978236B1 (en) * 1999-10-01 2005-12-20 Coding Technologies Ab Efficient spectral envelope coding using variable time/frequency resolution and time/frequency switching
US6480827B1 (en) * 2000-03-07 2002-11-12 Motorola, Inc. Method and apparatus for voice communication
US6842733B1 (en) * 2000-09-15 2005-01-11 Mindspeed Technologies, Inc. Signal processing system for filtering spectral content of a signal for speech coding
US7328151B2 (en) * 2002-03-22 2008-02-05 Sound Id Audio decoder with dynamic adjustment of signal modification
CA2388352A1 (en) * 2002-05-31 2003-11-30 Voiceage Corporation A method and device for frequency-selective pitch enhancement of synthesized speed
CA2388439A1 (en) * 2002-05-31 2003-11-30 Voiceage Corporation A method and device for efficient frame erasure concealment in linear predictive based speech codecs
US6754300B2 (en) * 2002-06-20 2004-06-22 Ge Medical Systems Global Technology Company, Llc Methods and apparatus for operating a radiation source
DE10230809B4 (de) * 2002-07-08 2008-09-11 T-Mobile Deutschland Gmbh Verfahren zur Übertragung von Audiosignalen nach dem Verfahren der priorisierenden Pixelübertragung
KR100462615B1 (ko) 2002-07-11 2004-12-20 삼성전자주식회사 적은 계산량으로 고주파수 성분을 복원하는 오디오 디코딩방법 및 장치
KR100477699B1 (ko) * 2003-01-15 2005-03-18 삼성전자주식회사 양자화 잡음 분포 조절 방법 및 장치
US7725324B2 (en) 2003-12-19 2010-05-25 Telefonaktiebolaget Lm Ericsson (Publ) Constrained filter encoding of polyphonic signals
US7809579B2 (en) 2003-12-19 2010-10-05 Telefonaktiebolaget Lm Ericsson (Publ) Fidelity-optimized variable frame length encoding
SE527713C2 (sv) 2003-12-19 2006-05-23 Ericsson Telefon Ab L M Kodning av polyfoniska signaler med villkorsbegränsade filter
JP4318119B2 (ja) * 2004-06-18 2009-08-19 国立大学法人京都大学 音響信号処理方法、音響信号処理装置、音響信号処理システム及びコンピュータプログラム
WO2006009074A1 (ja) * 2004-07-20 2006-01-26 Matsushita Electric Industrial Co., Ltd. 音声復号化装置および補償フレーム生成方法
US7720230B2 (en) * 2004-10-20 2010-05-18 Agere Systems, Inc. Individual channel shaping for BCC schemes and the like
US9626973B2 (en) 2005-02-23 2017-04-18 Telefonaktiebolaget L M Ericsson (Publ) Adaptive bit allocation for multi-channel audio encoding
WO2006091139A1 (en) 2005-02-23 2006-08-31 Telefonaktiebolaget Lm Ericsson (Publ) Adaptive bit allocation for multi-channel audio encoding
US7590523B2 (en) 2006-03-20 2009-09-15 Mindspeed Technologies, Inc. Speech post-processing using MDCT coefficients
WO2007130765A2 (en) * 2006-05-04 2007-11-15 Sony Computer Entertainment Inc. Echo and noise cancellation
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
CA2656423C (en) * 2006-06-30 2013-12-17 Juergen Herre Audio encoder, audio decoder and audio processor having a dynamically variable warping characteristic
JP2008052117A (ja) * 2006-08-25 2008-03-06 Oki Electric Ind Co Ltd 雑音除去装置、方法及びプログラム
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
DE102006051673A1 (de) 2006-11-02 2008-05-15 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Vorrichtung und Verfahren zum Nachbearbeiten von Spektralwerten und Encodierer und Decodierer für Audiosignale
GB0703795D0 (en) * 2007-02-27 2007-04-04 Sepura Ltd Speech encoding and decoding in communications systems
DK2535894T3 (en) * 2007-03-02 2015-04-13 Ericsson Telefon Ab L M Practices and devices in a telecommunications network
US8620645B2 (en) * 2007-03-02 2013-12-31 Telefonaktiebolaget L M Ericsson (Publ) Non-causal postfilter
US8554548B2 (en) * 2007-03-02 2013-10-08 Panasonic Corporation Speech decoding apparatus and speech decoding method including high band emphasis processing
JP5247826B2 (ja) 2008-03-05 2013-07-24 ヴォイスエイジ・コーポレーション 復号化音調音響信号を増強するためのシステムおよび方法
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
US20110125507A1 (en) * 2008-07-18 2011-05-26 Dolby Laboratories Licensing Corporation Method and System for Frequency Domain Postfiltering of Encoded Audio Data in a Decoder
EP2239732A1 (en) 2009-04-09 2010-10-13 Fraunhofer-Gesellschaft zur Förderung der Angewandten Forschung e.V. Apparatus and method for generating a synthesis audio signal and for encoding an audio signal
RU2452044C1 (ru) 2009-04-02 2012-05-27 Фраунхофер-Гезелльшафт цур Фёрдерунг дер ангевандтен Форшунг Е.Ф. Устройство, способ и носитель с программным кодом для генерирования представления сигнала с расширенным диапазоном частот на основе представления входного сигнала с использованием сочетания гармонического расширения диапазона частот и негармонического расширения диапазона частот
US9729899B2 (en) 2009-04-20 2017-08-08 Dolby Laboratories Licensing Corporation Directed interpolation and data post-processing
EP2502231B1 (en) * 2009-11-19 2014-06-04 Telefonaktiebolaget L M Ericsson (PUBL) Bandwidth extension of a low band audio signal
JP5316896B2 (ja) * 2010-03-17 2013-10-16 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
US8886523B2 (en) 2010-04-14 2014-11-11 Huawei Technologies Co., Ltd. Audio decoding based on audio class with control code for post-processing modes
CA2801805C (en) * 2010-07-02 2018-01-02 Dolby International Ab Selective bass post filter
US9792925B2 (en) 2010-11-25 2017-10-17 Nec Corporation Signal processing device, signal processing method and signal processing program
JP5609591B2 (ja) * 2010-11-30 2014-10-22 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
US9240191B2 (en) 2011-04-28 2016-01-19 Telefonaktiebolaget L M Ericsson (Publ) Frame based audio signal classification
PT2951814T (pt) 2013-01-29 2017-07-25 Fraunhofer Ges Forschung Ênfase de baixa frequência para codificação com base em lpc em domínio de frequência
US9418671B2 (en) * 2013-08-15 2016-08-16 Huawei Technologies Co., Ltd. Adaptive high-pass post-filter
KR20240149975A (ko) * 2013-09-12 2024-10-15 돌비 인터네셔널 에이비 Qmf 기반 처리 데이터의 시간 정렬
EP3044789B1 (en) * 2013-09-12 2019-09-11 Saudi Arabian Oil Company Dynamic threshold methods, systems, computer readable media, and program code for filtering noise and restoring attenuated high-frequency components of acoustic signals
EP2881943A1 (en) * 2013-12-09 2015-06-10 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Apparatus and method for decoding an encoded audio signal with low computational resources
FR3017484A1 (fr) 2014-02-07 2015-08-14 Orange Extension amelioree de bande de frequence dans un decodeur de signaux audiofrequences
EP2980798A1 (en) * 2014-07-28 2016-02-03 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Harmonicity-dependent controlling of a harmonic filter tool
EP2980796A1 (en) 2014-07-28 2016-02-03 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Method and apparatus for processing an audio signal, audio decoder, and audio encoder
RU2589851C2 (ru) * 2014-08-26 2016-07-10 Общество С Ограниченной Ответственностью "Истрасофт" Система и способ перевода речевого сигнала в транскрипционное представление с метаданными
US10847170B2 (en) 2015-06-18 2020-11-24 Qualcomm Incorporated Device and method for generating a high-band signal from non-linearly processed sub-ranges
US9837089B2 (en) * 2015-06-18 2017-12-05 Qualcomm Incorporated High-band signal generation
US10587238B2 (en) * 2017-10-26 2020-03-10 Oeksound Oy Sound processing method
US11328714B2 (en) 2020-01-02 2022-05-10 International Business Machines Corporation Processing audio data
CN116304581B (zh) * 2023-05-10 2023-07-21 佛山市钒音科技有限公司 一种空调用智能电控系统

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8801014D0 (en) * 1988-01-18 1988-02-17 British Telecomm Noise reduction
AU633673B2 (en) * 1990-01-18 1993-02-04 Matsushita Electric Industrial Co., Ltd. Signal processing device
FR2687496B1 (fr) * 1992-02-18 1994-04-01 Alcatel Radiotelephone Procede de reduction de bruit acoustique dans un signal de parole.
US5479560A (en) * 1992-10-30 1995-12-26 Technology Research Association Of Medical And Welfare Apparatus Formant detecting device and speech processing apparatus
US5710862A (en) * 1993-06-30 1998-01-20 Motorola, Inc. Method and apparatus for reducing an undesirable characteristic of a spectral estimate of a noise signal between occurrences of voice signals
EP0707763B1 (en) * 1993-07-07 2001-08-29 Picturetel Corporation Reduction of background noise for speech enhancement
JP3024468B2 (ja) * 1993-12-10 2000-03-21 日本電気株式会社 音声復号装置

Also Published As

Publication number Publication date
DE69810754T2 (de) 2003-08-21
EP0965123B1 (en) 2003-01-15
EP0965123A1 (en) 1999-12-22
US6138093A (en) 2000-10-24
CA2282693A1 (en) 1998-09-11
JP4274586B2 (ja) 2009-06-10
BR9808162A (pt) 2000-03-28
CN1254433A (zh) 2000-05-24
DE69810754D1 (de) 2003-02-20
RU2199157C2 (ru) 2003-02-20
AU6640998A (en) 1998-09-22
SE9700772D0 (sv) 1997-03-03
JP2001513916A (ja) 2001-09-04
KR20000075936A (ko) 2000-12-26
WO1998039768A1 (en) 1998-09-11

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Legal Events

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B15K Others concerning applications: alteration of classification

Free format text: ALTERADA A CLASSIFICACAO PARA INT.CL. 2008.01 G10L 19/02

Ipc: G10L 19/02 (2008.04)

B06A Patent application procedure suspended [chapter 6.1 patent gazette]
B09A Decision: intention to grant [chapter 9.1 patent gazette]
B16A Patent or certificate of addition of invention granted [chapter 16.1 patent gazette]

Free format text: PRAZO DE VALIDADE: 10 (DEZ) ANOS CONTADOS A PARTIR DE 30/06/2009, OBSERVADAS AS CONDICOES LEGAIS.

B21A Patent or certificate of addition expired [chapter 21.1 patent gazette]

Free format text: PATENTE EXTINTA EM 30.06.2019