HK19297A - Noise supression system - Google Patents
Noise supression systemInfo
- Publication number
- HK19297A HK19297A HK19297A HK19297A HK19297A HK 19297 A HK19297 A HK 19297A HK 19297 A HK19297 A HK 19297A HK 19297 A HK19297 A HK 19297A HK 19297 A HK19297 A HK 19297A
- Authority
- HK
- Hong Kong
- Prior art keywords
- noise supression
- supression system
- noise
- supression
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G3/00—Gain control in amplifiers or frequency changers
- H03G3/20—Automatic control
- H03G3/30—Automatic control in amplifiers having semiconductor devices
- H03G3/34—Muting amplifier when no signal is present or when only weak signals are present, or caused by the presence of noise signals, e.g. squelch systems
-
- 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
- H04R27/00—Public address systems
-
- 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
-
- 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
- G10L25/00—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00
- G10L25/27—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 characterised by the analysis technique
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2225/00—Details of deaf aids covered by H04R25/00, not provided for in any of its subgroups
- H04R2225/43—Signal processing in hearing aids to enhance the speech intelligibility
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R25/00—Deaf-aid sets, i.e. electro-acoustic or electro-mechanical hearing aids; Electric tinnitus maskers providing an auditory perception
- H04R25/50—Customised settings for obtaining desired overall acoustical characteristics
- H04R25/505—Customised settings for obtaining desired overall acoustical characteristics using digital signal processing
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Computational Linguistics (AREA)
- Quality & Reliability (AREA)
- Health & Medical Sciences (AREA)
- Audiology, Speech & Language Pathology (AREA)
- Human Computer Interaction (AREA)
- Multimedia (AREA)
- Noise Elimination (AREA)
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US06/750,572 US4630304A (en) | 1985-07-01 | 1985-07-01 | Automatic background noise estimator for a noise suppression system |
US06/750,941 US4630305A (en) | 1985-07-01 | 1985-07-01 | Automatic gain selector for a noise suppression system |
US06/750,942 US4628529A (en) | 1985-07-01 | 1985-07-01 | Noise suppression system |
PCT/US1986/000990 WO1987000366A1 (en) | 1985-07-01 | 1986-05-05 | Noise supression system |
Publications (1)
Publication Number | Publication Date |
---|---|
HK19297A true HK19297A (en) | 1997-02-20 |
Family
ID=27419404
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
HK19297A HK19297A (en) | 1985-07-01 | 1997-02-20 | Noise supression system |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP0226613B1 (de) |
KR (1) | KR940009391B1 (de) |
DE (1) | DE3689035T2 (de) |
FI (1) | FI92118C (de) |
HK (1) | HK19297A (de) |
WO (1) | WO1987000366A1 (de) |
Families Citing this family (39)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2243274A (en) * | 1990-02-20 | 1991-10-23 | Switchtoll Limited | Subtracting ambient noise from total noise during recording or broadcasting |
DE69133085T2 (de) * | 1990-05-28 | 2003-05-15 | Matsushita Electric Industrial Co., Ltd. | Sprachkodierer |
DE69132749T2 (de) * | 1990-05-28 | 2002-07-04 | Matsushita Electric Industrial Co., Ltd. | Vorrichtung zur Sprachsignalverarbeitung für die Bestimmung eines Sprachsignals in einem verrauschten Sprachsignal |
KR950013551B1 (ko) * | 1990-05-28 | 1995-11-08 | 마쯔시다덴기산교 가부시기가이샤 | 잡음신호예측장치 |
US5220610A (en) * | 1990-05-28 | 1993-06-15 | Matsushita Electric Industrial Co., Ltd. | Speech signal processing apparatus for extracting a speech signal from a noisy speech signal |
JP3033061B2 (ja) * | 1990-05-28 | 2000-04-17 | 松下電器産業株式会社 | 音声雑音分離装置 |
EP0459362B1 (de) * | 1990-05-28 | 1997-01-08 | Matsushita Electric Industrial Co., Ltd. | Sprachsignalverarbeitungsvorrichtung |
US5657422A (en) * | 1994-01-28 | 1997-08-12 | Lucent Technologies Inc. | Voice activity detection driven noise remediator |
US5768473A (en) * | 1995-01-30 | 1998-06-16 | Noise Cancellation Technologies, Inc. | Adaptive speech filter |
US6771590B1 (en) | 1996-08-22 | 2004-08-03 | Tellabs Operations, Inc. | Communication system clock synchronization techniques |
US6118758A (en) | 1996-08-22 | 2000-09-12 | Tellabs Operations, Inc. | Multi-point OFDM/DMT digital communications system including remote service unit with improved transmitter architecture |
GB9714001D0 (en) * | 1997-07-02 | 1997-09-10 | Simoco Europ Limited | Method and apparatus for speech enhancement in a speech communication system |
ES2389626T3 (es) | 1998-04-03 | 2012-10-29 | Tellabs Operations, Inc. | Filtro para acortamiento de respuesta al impulso, con restricciones espectrales adicionales, para transmisión de múltiples portadoras |
US7440498B2 (en) | 2002-12-17 | 2008-10-21 | Tellabs Operations, Inc. | Time domain equalization for discrete multi-tone systems |
US6795424B1 (en) | 1998-06-30 | 2004-09-21 | Tellabs Operations, Inc. | Method and apparatus for interference suppression in orthogonal frequency division multiplexed (OFDM) wireless communication systems |
GB9821385D0 (en) * | 1998-10-01 | 1998-11-25 | British Broadcasting Corp | Improvements relating to measuring channel state from a received signal and discriminating digital values from a received signal,suitable for use in cofdm |
US6519486B1 (en) | 1998-10-15 | 2003-02-11 | Ntc Technology Inc. | Method, apparatus and system for removing motion artifacts from measurements of bodily parameters |
US7991448B2 (en) | 1998-10-15 | 2011-08-02 | Philips Electronics North America Corporation | Method, apparatus, and system for removing motion artifacts from measurements of bodily parameters |
FR2794323B1 (fr) * | 1999-05-27 | 2002-02-15 | Sagem | Procede de suppression de bruit |
FR2794322B1 (fr) * | 1999-05-27 | 2001-06-22 | Sagem | Procede de suppression de bruit |
ATE263410T1 (de) * | 2000-02-29 | 2004-04-15 | Ericsson Inc | Verfahren und systeme für rauschunterdrückung für räumlich versetzte signalquellen |
US6529868B1 (en) * | 2000-03-28 | 2003-03-04 | Tellabs Operations, Inc. | Communication system noise cancellation power signal calculation techniques |
EP1170728A1 (de) * | 2000-07-05 | 2002-01-09 | Alcatel | System zur angepassten Reduktion von Geräuschen bei Sprachsignalen |
JP3566197B2 (ja) | 2000-08-31 | 2004-09-15 | 松下電器産業株式会社 | 雑音抑圧装置及び雑音抑圧方法 |
JP2002149200A (ja) | 2000-08-31 | 2002-05-24 | Matsushita Electric Ind Co Ltd | 音声処理装置及び音声処理方法 |
DE10308483A1 (de) | 2003-02-26 | 2004-09-09 | Siemens Audiologische Technik Gmbh | Verfahren zur automatischen Verstärkungseinstellung in einem Hörhilfegerät sowie Hörhilfegerät |
US7127076B2 (en) | 2003-03-03 | 2006-10-24 | Phonak Ag | Method for manufacturing acoustical devices and for reducing especially wind disturbances |
EP1339256B1 (de) * | 2003-03-03 | 2017-12-27 | Sonova AG | Verfahren zur Herstellung von akustischen Geräten und zur Verringerung von Windstörungen |
JP2006523058A (ja) * | 2003-04-08 | 2006-10-05 | コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ | マイクロフォン信号における干渉ノイズ信号部分を低減する方法及び装置 |
US7454332B2 (en) | 2004-06-15 | 2008-11-18 | Microsoft Corporation | Gain constrained noise suppression |
KR100927897B1 (ko) | 2005-09-02 | 2009-11-23 | 닛본 덴끼 가부시끼가이샤 | 잡음억제방법과 장치, 및 컴퓨터프로그램 |
EP1770685A1 (de) * | 2005-10-03 | 2007-04-04 | Maysound ApS | System zur Verminderung der hörbaren Wahrnehmung des Schallstörpegels eines Menschen. |
DE102006051071B4 (de) | 2006-10-30 | 2010-12-16 | Siemens Audiologische Technik Gmbh | Pegelabhängige Geräuschreduktion |
GB0725110D0 (en) * | 2007-12-21 | 2008-01-30 | Wolfson Microelectronics Plc | Gain control based on noise level |
EP2149986B1 (de) * | 2008-07-29 | 2017-10-25 | LG Electronics Inc. | Vorrichtung zur Verarbeitung eines Audiosignals und Verfahren dafür |
JP2010122617A (ja) * | 2008-11-21 | 2010-06-03 | Yamaha Corp | ノイズゲート、及び収音装置 |
US8538043B2 (en) | 2009-03-08 | 2013-09-17 | Lg Electronics Inc. | Apparatus for processing an audio signal and method thereof |
KR102372188B1 (ko) * | 2015-05-28 | 2022-03-08 | 삼성전자주식회사 | 오디오 신호의 잡음을 제거하기 위한 방법 및 그 전자 장치 |
CN112863534B (zh) * | 2020-12-31 | 2022-05-10 | 思必驰科技股份有限公司 | 噪声音频消除方法、语音识别方法 |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3989897A (en) * | 1974-10-25 | 1976-11-02 | Carver R W | Method and apparatus for reducing noise content in audio signals |
US4185168A (en) * | 1976-05-04 | 1980-01-22 | Causey G Donald | Method and means for adaptively filtering near-stationary noise from an information bearing signal |
US4135590A (en) * | 1976-07-26 | 1979-01-23 | Gaulder Clifford F | Noise suppressor system |
US4208548A (en) * | 1977-07-19 | 1980-06-17 | Orban Associates, Inc. | Apparatus and method for peak-limiting audio frequency signals |
US4340778A (en) * | 1979-11-13 | 1982-07-20 | Bennett Sound Corporation | Speaker distortion compensator |
JPS56122243A (en) * | 1980-02-29 | 1981-09-25 | Victor Co Of Japan Ltd | Noise reduction system |
JPS56152337A (en) * | 1980-04-24 | 1981-11-25 | Victor Co Of Japan Ltd | Noise reduction system |
-
1986
- 1986-05-05 KR KR1019870700178A patent/KR940009391B1/ko not_active IP Right Cessation
- 1986-05-05 EP EP86903767A patent/EP0226613B1/de not_active Expired - Lifetime
- 1986-05-05 DE DE86903767T patent/DE3689035T2/de not_active Expired - Lifetime
- 1986-05-05 WO PCT/US1986/000990 patent/WO1987000366A1/en active IP Right Grant
-
1987
- 1987-02-16 FI FI870642A patent/FI92118C/fi not_active IP Right Cessation
-
1997
- 1997-02-20 HK HK19297A patent/HK19297A/xx not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
DE3689035D1 (de) | 1993-10-21 |
WO1987000366A1 (en) | 1987-01-15 |
FI92118C (fi) | 1994-09-26 |
DE3689035T2 (de) | 1994-01-20 |
EP0226613A4 (de) | 1988-06-14 |
FI870642A0 (fi) | 1987-02-16 |
EP0226613A1 (de) | 1987-07-01 |
KR940009391B1 (ko) | 1994-10-07 |
KR880700539A (ko) | 1988-03-15 |
EP0226613B1 (de) | 1993-09-15 |
FI870642A (fi) | 1987-02-16 |
FI92118B (fi) | 1994-06-15 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PF | Patent in force | ||
PE | Patent expired |
Effective date: 20060504 |