ATE531038T1 - Nachbearbeitung zur reduzierung des quantifizierungsrauschens eines codierers während der decodierung - Google Patents

Nachbearbeitung zur reduzierung des quantifizierungsrauschens eines codierers während der decodierung

Info

Publication number
ATE531038T1
ATE531038T1 AT08805992T AT08805992T ATE531038T1 AT E531038 T1 ATE531038 T1 AT E531038T1 AT 08805992 T AT08805992 T AT 08805992T AT 08805992 T AT08805992 T AT 08805992T AT E531038 T1 ATE531038 T1 AT E531038T1
Authority
AT
Austria
Prior art keywords
processing
quantification noise
post
quantification
noise
Prior art date
Application number
AT08805992T
Other languages
English (en)
Inventor
Jean-Luc Garcia
Claude Marro
Balazs Kovesi
Original Assignee
France Telecom
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 France Telecom filed Critical France Telecom
Application granted granted Critical
Publication of ATE531038T1 publication Critical patent/ATE531038T1/de

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
    • 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
    • G10L21/0316—Speech enhancement, e.g. noise reduction or echo cancellation by changing the amplitude
    • G10L21/0364—Speech enhancement, e.g. noise reduction or echo cancellation by changing the amplitude for improving intelligibility
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computational Linguistics (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Quality & Reliability (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
AT08805992T 2007-06-14 2008-06-13 Nachbearbeitung zur reduzierung des quantifizierungsrauschens eines codierers während der decodierung ATE531038T1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0704242 2007-06-14
PCT/FR2008/051057 WO2009004225A1 (fr) 2007-06-14 2008-06-13 Post-traitement de reduction du bruit de quantification d'un codeur, au decodage

Publications (1)

Publication Number Publication Date
ATE531038T1 true ATE531038T1 (de) 2011-11-15

Family

ID=38990872

Family Applications (1)

Application Number Title Priority Date Filing Date
AT08805992T ATE531038T1 (de) 2007-06-14 2008-06-13 Nachbearbeitung zur reduzierung des quantifizierungsrauschens eines codierers während der decodierung

Country Status (6)

Country Link
US (1) US8175145B2 (de)
EP (1) EP2153438B1 (de)
JP (2) JP2010529511A (de)
AT (1) ATE531038T1 (de)
ES (1) ES2376178T3 (de)
WO (1) WO2009004225A1 (de)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2470385C2 (ru) * 2008-03-05 2012-12-20 Войсэйдж Корпорейшн Система и способ улучшения декодированного тонального звукового сигнала
JP5141633B2 (ja) * 2009-04-24 2013-02-13 ソニー株式会社 画像処理方法及びそれを用いた画像情報符号化装置
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
JP5898515B2 (ja) * 2012-02-15 2016-04-06 ルネサスエレクトロニクス株式会社 半導体装置及び音声通信装置
LT3848929T (lt) * 2013-03-04 2023-10-25 Voiceage Evs Llc Prietaisas ir būdas kvantavimo triukšmams sumažinti laiko srities dekoderiu
FR3007184A1 (fr) * 2013-06-14 2014-12-19 France Telecom Controle du traitement d'attenuation d'un bruit de quantification introduit par un codage en compresssion
JP5816992B2 (ja) * 2013-10-31 2015-11-18 株式会社アクセル フィルタの設計方法及びそのフィルタを備えた音響再生装置
EP2887350B1 (de) * 2013-12-19 2016-10-05 Dolby Laboratories Licensing Corporation Adaptive Quantisierungsrauschen-Filterung von decodierten Audiodaten
US9881630B2 (en) * 2015-12-30 2018-01-30 Google Llc Acoustic keystroke transient canceler for speech communication terminals using a semi-blind adaptive filter model
JP2016105188A (ja) * 2016-01-12 2016-06-09 株式会社アクセル 音声信号圧縮装置及び音声信号圧縮方法
JP2024525212A (ja) * 2021-06-24 2024-07-10 フラウンホファー ゲセルシャフト ツール フェールデルンク ダー アンゲヴァンテン フォルシュンク エー．ファオ． 望ましくない音の粗さを除去するための装置および方法

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0752844B2 (ja) * 1985-11-27 1995-06-05 日本電気株式会社 雑音除去回路
JPH03116197A (ja) * 1989-09-29 1991-05-17 Matsushita Electric Ind Co Ltd 音声復号化装置
JP3024468B2 (ja) * 1993-12-10 2000-03-21 日本電気株式会社 音声復号装置
JP4358221B2 (ja) * 1997-12-08 2009-11-04 三菱電機株式会社 音信号加工方法及び音信号加工装置
US6128346A (en) * 1998-04-14 2000-10-03 Motorola, Inc. Method and apparatus for quantizing a signal in a digital system
US6115689A (en) * 1998-05-27 2000-09-05 Microsoft Corporation Scalable audio coder and decoder
JP2000269821A (ja) * 1999-03-18 2000-09-29 Oki Micro Design Co Ltd 予測符号化信号復号化装置及び雑音除去方法
ATE343207T1 (de) * 2002-01-25 2006-11-15 Koninkl Philips Electronics Nv Verfahren und einheit zur subtraktion des quantisierungsrauschen von einem pcm-signal
US7328151B2 (en) * 2002-03-22 2008-02-05 Sound Id Audio decoder with dynamic adjustment of signal modification
KR100477699B1 (ko) * 2003-01-15 2005-03-18 삼성전자주식회사 양자화 잡음 분포 조절 방법 및 장치
US20060116874A1 (en) * 2003-10-24 2006-06-01 Jonas Samuelsson Noise-dependent postfiltering
CN1947407A (zh) * 2004-04-09 2007-04-11 日本电气株式会社 音频通信方法和装置
WO2006134992A1 (ja) * 2005-06-17 2006-12-21 Matsushita Electric Industrial Co., Ltd. ポストフィルタ、復号化装置及びポストフィルタ処理方法

Also Published As

Publication number Publication date
WO2009004225A1 (fr) 2009-01-08
ES2376178T3 (es) 2012-03-09
EP2153438A1 (de) 2010-02-17
JP2015007805A (ja) 2015-01-15
JP5881791B2 (ja) 2016-03-09
US20100183067A1 (en) 2010-07-22
JP2010529511A (ja) 2010-08-26
EP2153438B1 (de) 2011-10-26
US8175145B2 (en) 2012-05-08

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