EP0948237A3 - Verfahren zur Störbefreiung eines Mikrophonsignals - Google Patents
Verfahren zur Störbefreiung eines Mikrophonsignals Download PDFInfo
- Publication number
- EP0948237A3 EP0948237A3 EP99106123A EP99106123A EP0948237A3 EP 0948237 A3 EP0948237 A3 EP 0948237A3 EP 99106123 A EP99106123 A EP 99106123A EP 99106123 A EP99106123 A EP 99106123A EP 0948237 A3 EP0948237 A3 EP 0948237A3
- Authority
- EP
- European Patent Office
- Prior art keywords
- signal
- noise
- microphone signal
- noise suppression
- microphone
- 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
- 238000000034 method Methods 0.000 title abstract 2
- 230000001629 suppression Effects 0.000 title 1
- 230000003044 adaptive effect Effects 0.000 abstract 1
- 238000004088 simulation Methods 0.000 abstract 1
- 230000009466 transformation Effects 0.000 abstract 1
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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R3/00—Circuits for transducers, loudspeakers or microphones
- H04R3/007—Protection circuits for transducers
-
- 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
- G10L2021/02168—Noise filtering characterised by the method used for estimating noise the estimation exclusively taking place during speech pauses
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Computational Linguistics (AREA)
- Quality & Reliability (AREA)
- Health & Medical Sciences (AREA)
- Audiology, Speech & Language Pathology (AREA)
- Human Computer Interaction (AREA)
- Multimedia (AREA)
- Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
Abstract
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19814971 | 1998-04-03 | ||
DE19814971A DE19814971A1 (de) | 1998-04-03 | 1998-04-03 | Verfahren zur Störbefreiung eines Mikrophonsignals |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0948237A2 EP0948237A2 (de) | 1999-10-06 |
EP0948237A3 true EP0948237A3 (de) | 2006-02-08 |
EP0948237B1 EP0948237B1 (de) | 2008-06-11 |
Family
ID=7863491
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP99106123A Expired - Lifetime EP0948237B1 (de) | 1998-04-03 | 1999-04-01 | Verfahren zur Störbefreiung eines Mikrophonsignals |
Country Status (4)
Country | Link |
---|---|
US (1) | US6895095B1 (de) |
EP (1) | EP0948237B1 (de) |
AT (1) | ATE398326T1 (de) |
DE (2) | DE19814971A1 (de) |
Families Citing this family (33)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19958836A1 (de) * | 1999-11-29 | 2001-05-31 | Deutsche Telekom Ag | Verfahren und Anordnung zur Verbesserung der Kommunikation in einem Fahrzeug |
DE10041885A1 (de) * | 2000-08-25 | 2002-03-07 | Mueller Bbm Gmbh | Sprachsignalübertragungssystem für Fahrzeuge |
DE10052991A1 (de) * | 2000-10-19 | 2002-05-02 | Deutsche Telekom Ag | Verfahren zur Ermittlung raumakustischer und elektroakustischer Parameter |
DE10221990B4 (de) * | 2002-05-17 | 2006-10-12 | Audi Ag | Reduzierung von Störgeräuschen an Autoradios mit Busanschlüssen |
US20040047475A1 (en) * | 2002-09-09 | 2004-03-11 | Ford Global Technologies, Inc. | Audio noise cancellation system for a sensor in an automotive vehicle |
JP2005218010A (ja) * | 2004-02-02 | 2005-08-11 | Matsushita Electric Ind Co Ltd | 車両用データ伝送システム |
US8543390B2 (en) | 2004-10-26 | 2013-09-24 | Qnx Software Systems Limited | Multi-channel periodic signal enhancement system |
US8170879B2 (en) | 2004-10-26 | 2012-05-01 | Qnx Software Systems Limited | Periodic signal enhancement system |
US8306821B2 (en) | 2004-10-26 | 2012-11-06 | Qnx Software Systems Limited | Sub-band periodic signal enhancement system |
US7949520B2 (en) | 2004-10-26 | 2011-05-24 | QNX Software Sytems Co. | Adaptive filter pitch extraction |
US7716046B2 (en) * | 2004-10-26 | 2010-05-11 | Qnx Software Systems (Wavemakers), Inc. | Advanced periodic signal enhancement |
US7525440B2 (en) * | 2005-06-01 | 2009-04-28 | Bose Corporation | Person monitoring |
DE602006005228D1 (de) * | 2006-04-18 | 2009-04-02 | Harman Becker Automotive Sys | System und Verfahren zur Mehrkanal-Echokompensation |
DE602006009770D1 (de) * | 2006-05-08 | 2009-11-26 | Harman Becker Automotive Sys | Echoverringerung für zeitvariante Systeme |
ATE436151T1 (de) * | 2006-05-10 | 2009-07-15 | Harman Becker Automotive Sys | Kompensation von mehrkanalechos durch dekorrelation |
EP1879181B1 (de) * | 2006-07-11 | 2014-05-21 | Nuance Communications, Inc. | Verfahren zur Kompensation von Audiosignalkomponenten in einem Fahrzeugkommunikationssystem und Vorrichtung dafür |
US20080063122A1 (en) * | 2006-09-07 | 2008-03-13 | Gwo-Jia Jong | Method for suppressing co-channel interference from different frequency |
EP1936939B1 (de) * | 2006-12-18 | 2011-08-24 | Harman Becker Automotive Systems GmbH | Echokompensation mit geringer Komplexität |
US7577257B2 (en) * | 2006-12-21 | 2009-08-18 | Verizon Services Operations, Inc. | Large scale quantum cryptographic key distribution network |
US20080225688A1 (en) * | 2007-03-14 | 2008-09-18 | Kowalski John M | Systems and methods for improving reference signals for spatially multiplexed cellular systems |
ATE524015T1 (de) * | 2007-05-22 | 2011-09-15 | Harman Becker Automotive Sys | Verfahren und vorrichtung zur verarbeitung mindestens zweier mikrofonsignale zur sendung eines ausgangssignals mit reduzierter interferenz |
ATE532324T1 (de) | 2007-07-16 | 2011-11-15 | Nuance Communications Inc | Verfahren und system zur verarbeitung von tonsignalen in einem multimediasystem eines fahrzeugs |
US8850154B2 (en) | 2007-09-11 | 2014-09-30 | 2236008 Ontario Inc. | Processing system having memory partitioning |
US8904400B2 (en) | 2007-09-11 | 2014-12-02 | 2236008 Ontario Inc. | Processing system having a partitioning component for resource partitioning |
US8694310B2 (en) | 2007-09-17 | 2014-04-08 | Qnx Software Systems Limited | Remote control server protocol system |
US8209514B2 (en) | 2008-02-04 | 2012-06-26 | Qnx Software Systems Limited | Media processing system having resource partitioning |
EP2222091B1 (de) | 2009-02-23 | 2013-04-24 | Nuance Communications, Inc. | Verfahren zum Bestimmen eines Satzes von Filterkoeffizienten für ein Mittel zur Kompensierung von akustischem Echo |
US9558752B2 (en) * | 2011-10-07 | 2017-01-31 | Panasonic Intellectual Property Corporation Of America | Encoding device and encoding method |
DE102014214143B4 (de) * | 2014-03-14 | 2015-12-31 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Vorrichtung und Verfahren zum Verarbeiten eines Signals im Frequenzbereich |
US20180166073A1 (en) * | 2016-12-13 | 2018-06-14 | Ford Global Technologies, Llc | Speech Recognition Without Interrupting The Playback Audio |
EP3563561A1 (de) * | 2016-12-30 | 2019-11-06 | Harman Becker Automotive Systems GmbH | Unterdrückung von akustischem echo |
DE102017101497B4 (de) | 2017-01-26 | 2020-08-27 | Infineon Technologies Ag | Mikro-Elektro-Mechanisches-System (MEMS) -Schaltkreis und Verfahren zum Rekonstruieren einer Störgröße |
DE102018204687B3 (de) * | 2018-03-27 | 2019-06-13 | Infineon Technologies Ag | MEMS Mikrofonmodul |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0250048A1 (de) * | 1986-06-20 | 1987-12-23 | Koninklijke Philips Electronics N.V. | Blockadaptives, digitales Filter im Frequenzgebiet |
US5245664A (en) * | 1989-12-29 | 1993-09-14 | Nissan Motor Company, Limited | Active noise control system for automotive vehicle |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5649012A (en) * | 1995-09-15 | 1997-07-15 | Hughes Electronics | Method for synthesizing an echo path in an echo canceller |
US5937060A (en) * | 1996-02-09 | 1999-08-10 | Texas Instruments Incorporated | Residual echo suppression |
JP3654470B2 (ja) * | 1996-09-13 | 2005-06-02 | 日本電信電話株式会社 | サブバンド多チャネル音声通信会議用反響消去方法 |
-
1998
- 1998-04-03 DE DE19814971A patent/DE19814971A1/de not_active Withdrawn
-
1999
- 1999-04-01 EP EP99106123A patent/EP0948237B1/de not_active Expired - Lifetime
- 1999-04-01 AT AT99106123T patent/ATE398326T1/de not_active IP Right Cessation
- 1999-04-01 DE DE59914782T patent/DE59914782D1/de not_active Expired - Lifetime
- 1999-04-02 US US09/285,064 patent/US6895095B1/en not_active Expired - Lifetime
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0250048A1 (de) * | 1986-06-20 | 1987-12-23 | Koninklijke Philips Electronics N.V. | Blockadaptives, digitales Filter im Frequenzgebiet |
US5245664A (en) * | 1989-12-29 | 1993-09-14 | Nissan Motor Company, Limited | Active noise control system for automotive vehicle |
Non-Patent Citations (1)
Title |
---|
GUSTAFSSON S ET AL: "Combined acoustic echo control and noise reduction for hands-free telephony", SIGNAL PROCESSING, ELSEVIER SCIENCE PUBLISHERS B.V. AMSTERDAM, NL, vol. 64, no. 1, January 1998 (1998-01-01), pages 21 - 32, XP004108821, ISSN: 0165-1684 * |
Also Published As
Publication number | Publication date |
---|---|
EP0948237B1 (de) | 2008-06-11 |
EP0948237A2 (de) | 1999-10-06 |
DE19814971A1 (de) | 1999-10-07 |
US6895095B1 (en) | 2005-05-17 |
DE59914782D1 (de) | 2008-07-24 |
ATE398326T1 (de) | 2008-07-15 |
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