DK1869671T3 - Fremgangsmåde og anordning til stöjundertrykkelse - Google Patents

Fremgangsmåde og anordning til stöjundertrykkelse

Info

Publication number
DK1869671T3
DK1869671T3 DK06725716T DK06725716T DK1869671T3 DK 1869671 T3 DK1869671 T3 DK 1869671T3 DK 06725716 T DK06725716 T DK 06725716T DK 06725716 T DK06725716 T DK 06725716T DK 1869671 T3 DK1869671 T3 DK 1869671T3
Authority
DK
Denmark
Prior art keywords
signal portion
noise suppression
decoded signal
energy envelope
envelope generating
Prior art date
Application number
DK06725716T
Other languages
English (en)
Inventor
Martin Gartner
Stefan Schandl
Original Assignee
Siemens Ag
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
Priority claimed from DE102005019863A external-priority patent/DE102005019863A1/de
Priority claimed from DE200510032079 external-priority patent/DE102005032079A1/de
Application filed by Siemens Ag filed Critical Siemens Ag
Application granted granted Critical
Publication of DK1869671T3 publication Critical patent/DK1869671T3/da

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
    • 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
    • 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
    • G10L19/025—Detection of transients or attacks for time/frequency resolution switching
    • 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
    • G10L19/04—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
    • G10L19/24—Variable rate codecs, e.g. for generating different qualities using a scalable representation such as hierarchical encoding or layered encoding
    • 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

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)
  • Quality & Reliability (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Noise Elimination (AREA)
  • Treating Waste Gases (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
  • Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)
  • Filters And Equalizers (AREA)
  • Analogue/Digital Conversion (AREA)
DK06725716T 2005-04-28 2006-04-12 Fremgangsmåde og anordning til stöjundertrykkelse DK1869671T3 (da)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE102005019863A DE102005019863A1 (de) 2005-04-28 2005-04-28 Verfahren und Vorrichtung zur Geräuschunterdrückung
DE102005028182 2005-06-17
DE200510032079 DE102005032079A1 (de) 2005-07-08 2005-07-08 Verfahren und Vorrichtung zur Geräuschunterdrückung
PCT/EP2006/061537 WO2006114368A1 (de) 2005-04-28 2006-04-12 Verfahren und vorrichtung zur geräuschunterdrückung

Publications (1)

Publication Number Publication Date
DK1869671T3 true DK1869671T3 (da) 2009-10-19

Family

ID=36621841

Family Applications (1)

Application Number Title Priority Date Filing Date
DK06725716T DK1869671T3 (da) 2005-04-28 2006-04-12 Fremgangsmåde og anordning til stöjundertrykkelse

Country Status (11)

Country Link
US (1) US8612236B2 (da)
EP (2) EP1953739B1 (da)
JP (1) JP4819881B2 (da)
KR (1) KR100915726B1 (da)
AT (1) ATE435481T1 (da)
CA (1) CA2574468C (da)
DE (1) DE502006004136D1 (da)
DK (1) DK1869671T3 (da)
ES (1) ES2327566T3 (da)
PL (1) PL1869671T3 (da)
WO (1) WO2006114368A1 (da)

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CN102160114B (zh) * 2008-09-17 2012-08-29 法国电信公司 用于对数字音频信号中的前回声进行衰减的方法和装置
AU2010309838B2 (en) * 2009-10-20 2014-05-08 Dolby International Ab Audio signal encoder, audio signal decoder, method for encoding or decoding an audio signal using an aliasing-cancellation
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WO2011048798A1 (ja) 2009-10-20 2011-04-28 パナソニック株式会社 符号化装置、復号化装置およびこれらの方法
US9838784B2 (en) 2009-12-02 2017-12-05 Knowles Electronics, Llc Directional audio capture
US8798290B1 (en) 2010-04-21 2014-08-05 Audience, Inc. Systems and methods for adaptive signal equalization
US9558755B1 (en) 2010-05-20 2017-01-31 Knowles Electronics, Llc Noise suppression assisted automatic speech recognition
CN101908342B (zh) * 2010-07-23 2012-09-26 北京理工大学 利用频域滤波后处理进行音频暂态信号预回声抑制的方法
US8615394B1 (en) * 2012-01-27 2013-12-24 Audience, Inc. Restoration of noise-reduced speech
US9536540B2 (en) 2013-07-19 2017-01-03 Knowles Electronics, Llc Speech signal separation and synthesis based on auditory scene analysis and speech modeling
US9978388B2 (en) 2014-09-12 2018-05-22 Knowles Electronics, Llc Systems and methods for restoration of speech components
CN107210824A (zh) 2015-01-30 2017-09-26 美商楼氏电子有限公司 麦克风的环境切换
US9820042B1 (en) 2016-05-02 2017-11-14 Knowles Electronics, Llc Stereo separation and directional suppression with omni-directional microphones

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Also Published As

Publication number Publication date
CA2574468A1 (en) 2006-11-02
ATE435481T1 (de) 2009-07-15
EP1869671A1 (de) 2007-12-26
KR100915726B1 (ko) 2009-09-04
PL1869671T3 (pl) 2009-12-31
JP2008539456A (ja) 2008-11-13
WO2006114368A1 (de) 2006-11-02
US8612236B2 (en) 2013-12-17
DE502006004136D1 (de) 2009-08-13
EP1953739A3 (de) 2008-10-08
JP4819881B2 (ja) 2011-11-24
CA2574468C (en) 2014-01-14
KR20070062493A (ko) 2007-06-15
US20070282604A1 (en) 2007-12-06
ES2327566T3 (es) 2009-10-30
EP1953739A2 (de) 2008-08-06
EP1869671B1 (de) 2009-07-01
EP1953739B1 (de) 2014-06-04

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