EP0615226A3 - Method for noise reduction in disturbed voice drannels. - Google Patents
Method for noise reduction in disturbed voice drannels. Download PDFInfo
- 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
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)
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)
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 |
EP3067887A1 (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)
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)
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 |
-
1993
- 1993-03-11 DE DE4307688A patent/DE4307688A1/en not_active Withdrawn
-
1994
- 1994-02-28 DE DE59408194T patent/DE59408194D1/en not_active Expired - Lifetime
- 1994-02-28 EP EP94102963A patent/EP0615226B1/en not_active Expired - Lifetime
Patent Citations (2)
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)
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 |
EP0615226A2 (en) | 1994-09-14 |
DE59408194D1 (en) | 1999-06-10 |
DE4307688A1 (en) | 1994-09-15 |
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