WO2000072305A3 - A method and apparatus for noise reduction in speech signals - Google Patents

A method and apparatus for noise reduction in speech signals Download PDF

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Publication number
WO2000072305A3
WO2000072305A3 PCT/DK2000/000263 DK0000263W WO0072305A3 WO 2000072305 A3 WO2000072305 A3 WO 2000072305A3 DK 0000263 W DK0000263 W DK 0000263W WO 0072305 A3 WO0072305 A3 WO 0072305A3
Authority
WO
WIPO (PCT)
Prior art keywords
speech
noise reduction
speech signals
production
sounds
Prior art date
Application number
PCT/DK2000/000263
Other languages
French (fr)
Other versions
WO2000072305A2 (en
Inventor
Kjeld Hermansen
Original Assignee
Noisecom Aps
Kjeld Hermansen
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, Kjeld Hermansen filed Critical Noisecom Aps
Priority to DE60017758T priority Critical patent/DE60017758D1/en
Priority to PCT/DK2000/000263 priority patent/WO2000072305A2/en
Priority to EP00925105A priority patent/EP1208561B1/en
Priority to AT00925105T priority patent/ATE288121T1/en
Priority to AU43943/00A priority patent/AU4394300A/en
Publication of WO2000072305A2 publication Critical patent/WO2000072305A2/en
Publication of WO2000072305A3 publication Critical patent/WO2000072305A3/en

Links

Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
    • G10L21/00—Processing of the speech or voice signal 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

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.
PCT/DK2000/000263 1999-05-19 2000-05-16 A method and apparatus for noise reduction in speech signals WO2000072305A2 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
DE60017758T DE60017758D1 (en) 1999-05-19 2000-05-16 METHOD AND DEVICE FOR NOISE REDUCTION IN LANGUAGE SIGNALS
PCT/DK2000/000263 WO2000072305A2 (en) 1999-05-19 2000-05-16 A method and apparatus for noise reduction in speech signals
EP00925105A EP1208561B1 (en) 1999-05-19 2000-05-16 A method and apparatus for noise reduction in speech signals
AT00925105T ATE288121T1 (en) 1999-05-19 2000-05-16 METHOD AND DEVICE FOR REDUCING NOISE IN VOICE SIGNALS
AU43943/00A AU4394300A (en) 1999-05-19 2000-05-16 A method and apparatus for noise reduction in speech signals

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
DKPA199900691 1999-05-19
DKPA199900691 1999-05-19
DKPA200000201 2000-02-08
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 (2)

Publication Number Publication Date
WO2000072305A2 WO2000072305A2 (en) 2000-11-30
WO2000072305A3 true WO2000072305A3 (en) 2008-01-10

Family

ID=26064462

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DK2000/000263 WO2000072305A2 (en) 1999-05-19 2000-05-16 A method and apparatus for noise reduction in speech 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
WO2004059614A2 (en) * 2002-12-31 2004-07-15 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

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0537948A2 (en) * 1991-10-18 1993-04-21 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
WO1996016533A2 (en) * 1994-11-25 1996-06-06 Fink Fleming K Method for transforming a speech signal using a pitch manipulator

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0537948A2 (en) * 1991-10-18 1993-04-21 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
WO1996016533A2 (en) * 1994-11-25 1996-06-06 Fink Fleming K Method for transforming a speech signal using a pitch manipulator

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
XP002901258 *
XP002901259 *

Also Published As

Publication number Publication date
EP1208561B1 (en) 2005-01-26
EP1208561A2 (en) 2002-05-29
WO2000072305A2 (en) 2000-11-30
AU4394300A (en) 2000-12-12
ATE288121T1 (en) 2005-02-15
DE60017758D1 (en) 2005-03-03

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