EP0615226A3 - Method for noise reduction in disturbed voice drannels. - Google Patents

Method for noise reduction in disturbed voice drannels. Download PDF

Info

Publication number
EP0615226A3
EP0615226A3 EP94102963A EP94102963A EP0615226A3 EP 0615226 A3 EP0615226 A3 EP 0615226A3 EP 94102963 A EP94102963 A EP 94102963A EP 94102963 A EP94102963 A EP 94102963A EP 0615226 A3 EP0615226 A3 EP 0615226A3
Authority
EP
European Patent Office
Prior art keywords
drannels
noise reduction
disturbed voice
disturbed
voice
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.)
Granted
Application number
EP94102963A
Other languages
German (de)
Other versions
EP0615226B1 (en
EP0615226A2 (en
Inventor
Klaus Dr Ing Linhard
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.)
Mercedes Benz Group AG
Original Assignee
Daimler Benz 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
Application filed by Daimler Benz AG filed Critical Daimler Benz AG
Publication of EP0615226A2 publication Critical patent/EP0615226A2/en
Publication of EP0615226A3 publication Critical patent/EP0615226A3/en
Application granted granted Critical
Publication of EP0615226B1 publication Critical patent/EP0615226B1/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
    • 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
    • G10L2021/02161—Number of inputs available containing the signal or the noise to be suppressed
    • G10L2021/02166—Microphone arrays; Beamforming

Landscapes

  • Engineering & Computer Science (AREA)
  • Computational Linguistics (AREA)
  • Quality & Reliability (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)
  • Circuit For Audible Band Transducer (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
EP94102963A 1993-03-11 1994-02-28 Method for noise reduction in disturbed voice channels Expired - Lifetime EP0615226B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4307688 1993-03-11
DE4307688A DE4307688A1 (en) 1993-03-11 1993-03-11 Method of noise reduction for disturbed voice channels

Publications (3)

Publication Number Publication Date
EP0615226A2 EP0615226A2 (en) 1994-09-14
EP0615226A3 true EP0615226A3 (en) 1995-08-23
EP0615226B1 EP0615226B1 (en) 1999-05-06

Family

ID=6482502

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94102963A Expired - Lifetime EP0615226B1 (en) 1993-03-11 1994-02-28 Method for noise reduction in disturbed voice channels

Country Status (2)

Country Link
EP (1) EP0615226B1 (en)
DE (2) DE4307688A1 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19629132A1 (en) 1996-07-19 1998-01-22 Daimler Benz Ag Method of reducing speech signal interference
DE19942868A1 (en) * 1999-09-08 2001-03-15 Volkswagen Ag Method for operating a multiple microphone arrangement in a motor vehicle and a multiple microphone arrangement itself
DE19955156A1 (en) * 1999-11-17 2001-06-21 Univ Karlsruhe Method and device for suppressing an interference signal component in the output signal of a sound transducer means
DE10118653C2 (en) * 2001-04-14 2003-03-27 Daimler Chrysler Ag Method for noise reduction
DE10120231A1 (en) * 2001-04-19 2002-10-24 Deutsche Telekom Ag Single-channel noise reduction of speech signals whose noise changes more slowly than speech signals, by estimating non-steady noise using power calculation and time-delay stages
DE60106239T2 (en) * 2001-08-21 2005-10-20 Culturecom Technology (Macau) Ltd. Method and device for processing an acoustic signal
EP3067886A1 (en) 2015-03-09 2016-09-14 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Audio encoder for encoding a multichannel signal and audio decoder for decoding an encoded audio signal

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4112430A (en) * 1977-06-01 1978-09-05 The United States Of America As Represented By The Secretary Of The Navy Beamformer for wideband signals
US4653102A (en) * 1985-11-05 1987-03-24 Position Orientation Systems Directional microphone system

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4066842A (en) * 1977-04-27 1978-01-03 Bell Telephone Laboratories, Incorporated Method and apparatus for cancelling room reverberation and noise pickup
JPS5715597A (en) * 1980-07-02 1982-01-26 Nippon Gakki Seizo Kk Microphone device
US4811404A (en) * 1987-10-01 1989-03-07 Motorola, Inc. Noise suppression system
JPH01118900A (en) * 1987-11-01 1989-05-11 Ricoh Co Ltd Noise suppressor
DE4012349A1 (en) * 1989-04-19 1990-10-25 Ricoh Kk Noise elimination device for speech recognition system - uses spectral subtraction of sampled noise values from sampled speech values
GB8911153D0 (en) * 1989-05-16 1989-09-20 Smiths Industries Plc Speech recognition apparatus and methods
US5267323A (en) * 1989-12-29 1993-11-30 Pioneer Electronic Corporation Voice-operated remote control system
DE4106405C2 (en) * 1990-03-23 1996-02-29 Ricoh Kk Noise suppression device for a speech recognition system

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4112430A (en) * 1977-06-01 1978-09-05 The United States Of America As Represented By The Secretary Of The Navy Beamformer for wideband signals
US4653102A (en) * 1985-11-05 1987-03-24 Position Orientation Systems Directional microphone system

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
KELLERMANN: "A self-steering digital microphone array", INTERNATIONAL CONFERENCE ON ACOUSTICS, SPEECH AND SIGNAL PROCESSING 1991, vol. 5, 14 May 1991 (1991-05-14) - 17 May 1991 (1991-05-17), TORONTO, CA, pages 3581 - 3584, XP000242750, DOI: doi:10.1109/ICASSP.1991.150249 *
LE BOUQUIN ET AL.: "Study of a noise cancellation system based on the coherence function", SIGNAL PROCESSING VI - THEORIES AND APPLICATIONS. PROCEEDINGS OF EUSIPCO-92, SIXTH EUROPEAN SIGNAL PROCESSING CONFERENCE, 24 August 1992 (1992-08-24) - 27 August 1992 (1992-08-27), BRUSSELS, BE, pages 1633 - 1636, XP000356558 *

Also Published As

Publication number Publication date
EP0615226B1 (en) 1999-05-06
DE4307688A1 (en) 1994-09-15
DE59408194D1 (en) 1999-06-10
EP0615226A2 (en) 1994-09-14

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