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DE60017758D1 - METHOD AND DEVICE FOR NOISE REDUCTION IN LANGUAGE SIGNALS - Google Patents

METHOD AND DEVICE FOR NOISE REDUCTION IN LANGUAGE SIGNALS

Info

Publication number
DE60017758D1
DE60017758D1 DE60017758T DE60017758T DE60017758D1 DE 60017758 D1 DE60017758 D1 DE 60017758D1 DE 60017758 T DE60017758 T DE 60017758T DE 60017758 T DE60017758 T DE 60017758T DE 60017758 D1 DE60017758 D1 DE 60017758D1
Authority
DE
Germany
Prior art keywords
speech
noise reduction
production
sounds
snr
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
DE60017758T
Other languages
German (de)
Inventor
Kjeld Hermansen
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.)
NOISECOM APS AALBORG
Original Assignee
NOISECOM APS AALBORG
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 NOISECOM APS AALBORG filed Critical NOISECOM APS AALBORG
Application granted granted Critical
Publication of DE60017758D1 publication Critical patent/DE60017758D1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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

Landscapes

  • Engineering & Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Computational Linguistics (AREA)
  • Physics & Mathematics (AREA)
  • Quality & Reliability (AREA)
  • Multimedia (AREA)
  • Noise Elimination (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Machine Translation (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)

Abstract

A method and apparatus for reducing noise in speech signals employing a priori knowledge regarding human speech production and knowledge of the speech dynamics, such as knowledge regarding the production of sounds in the mouth and throat region. Further employing a new model based spectral subtraction algorithm. Employs replacing part of the original signal containing voiced sounds by synthetically produced pulses. Improves the noise reduction without affecting the wanted (speech) components of the signal. The method may be used for low SNR (SNR<10dB). Advantageous when used in connection with communication using cellular phones.
DE60017758T 1999-05-19 2000-05-16 METHOD AND DEVICE FOR NOISE REDUCTION IN LANGUAGE SIGNALS Expired - Lifetime DE60017758D1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DKPA199900691 1999-05-19
DKPA200000201 2000-02-08
PCT/DK2000/000263 WO2000072305A2 (en) 1999-05-19 2000-05-16 A method and apparatus for noise reduction in speech signals

Publications (1)

Publication Number Publication Date
DE60017758D1 true DE60017758D1 (en) 2005-03-03

Family

ID=26064462

Family Applications (1)

Application Number Title Priority Date Filing Date
DE60017758T Expired - Lifetime DE60017758D1 (en) 1999-05-19 2000-05-16 METHOD AND DEVICE FOR NOISE REDUCTION IN LANGUAGE SIGNALS

Country Status (5)

Country Link
EP (1) EP1208561B1 (en)
AT (1) ATE288121T1 (en)
AU (1) AU4394300A (en)
DE (1) DE60017758D1 (en)
WO (1) WO2000072305A2 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2003287927A1 (en) * 2002-12-31 2004-07-22 Microsound A/S A method and apparatus for enhancing the perceptual quality of synthesized speech signals
US9666204B2 (en) 2014-04-30 2017-05-30 Qualcomm Incorporated Voice profile management and speech signal generation
US10332520B2 (en) 2017-02-13 2019-06-25 Qualcomm Incorporated Enhanced speech generation
CN112969130A (en) * 2020-12-31 2021-06-15 维沃移动通信有限公司 Audio signal processing method and device and electronic equipment

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0537948B1 (en) * 1991-10-18 1997-09-03 AT&T Corp. Method and apparatus for smoothing pitch-cycle waveforms
US5479560A (en) * 1992-10-30 1995-12-26 Technology Research Association Of Medical And Welfare Apparatus Formant detecting device and speech processing apparatus
US5933801A (en) * 1994-11-25 1999-08-03 Fink; Flemming K. Method for transforming a speech signal using a pitch manipulator

Also Published As

Publication number Publication date
WO2000072305A3 (en) 2008-01-10
EP1208561A2 (en) 2002-05-29
ATE288121T1 (en) 2005-02-15
AU4394300A (en) 2000-12-12
EP1208561B1 (en) 2005-01-26
WO2000072305A2 (en) 2000-11-30

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Legal Events

Date Code Title Description
8332 No legal effect for de