DE502007006264D1 - Vorrichtung zur geräuschunterdrückung bei einem audiosignal - Google Patents
Vorrichtung zur geräuschunterdrückung bei einem audiosignalInfo
- Publication number
- DE502007006264D1 DE502007006264D1 DE502007006264T DE502007006264T DE502007006264D1 DE 502007006264 D1 DE502007006264 D1 DE 502007006264D1 DE 502007006264 T DE502007006264 T DE 502007006264T DE 502007006264 T DE502007006264 T DE 502007006264T DE 502007006264 D1 DE502007006264 D1 DE 502007006264D1
- Authority
- DE
- Germany
- Prior art keywords
- signals
- noise
- error filter
- error
- basis
- 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.)
- Active
Links
- 230000005236 sound signal Effects 0.000 title 1
- 230000001629 suppression Effects 0.000 abstract 2
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
- G10L25/00—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00
- G10L25/03—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 characterised by the type of extracted parameters
- G10L25/12—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 characterised by the type of extracted parameters the extracted parameters being prediction coefficients
Landscapes
- Engineering & Computer Science (AREA)
- Human Computer Interaction (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Health & Medical Sciences (AREA)
- Audiology, Speech & Language Pathology (AREA)
- Computational Linguistics (AREA)
- Physics & Mathematics (AREA)
- Quality & Reliability (AREA)
- Multimedia (AREA)
- Filters That Use Time-Delay Elements (AREA)
- Noise Elimination (AREA)
- Signal Processing Not Specific To The Method Of Recording And Reproducing (AREA)
- Circuit For Audible Band Transducer (AREA)
- Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT0154706A AT504164B1 (de) | 2006-09-15 | 2006-09-15 | Vorrichtung zur gerauschunterdruckung bei einem audiosignal |
PCT/AT2007/000424 WO2008031124A1 (de) | 2006-09-15 | 2007-09-06 | Vorrichtung zur geräuschunterdrückung bei einem audiosignal |
Publications (1)
Publication Number | Publication Date |
---|---|
DE502007006264D1 true DE502007006264D1 (de) | 2011-02-24 |
Family
ID=38626580
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE502007006264T Active DE502007006264D1 (de) | 2006-09-15 | 2007-09-06 | Vorrichtung zur geräuschunterdrückung bei einem audiosignal |
Country Status (5)
Country | Link |
---|---|
US (1) | US20100049507A1 (de) |
EP (1) | EP2080197B1 (de) |
AT (2) | AT504164B1 (de) |
DE (1) | DE502007006264D1 (de) |
WO (1) | WO2008031124A1 (de) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2363853A1 (de) * | 2010-03-04 | 2011-09-07 | Österreichische Akademie der Wissenschaften | Verfahren zur Schätzung des rauschfreien Spektrums eines Signals |
US20150081495A1 (en) * | 2013-09-19 | 2015-03-19 | Barclays Bank Plc | System and Method for Account Succession |
US10251002B2 (en) | 2016-03-21 | 2019-04-02 | Starkey Laboratories, Inc. | Noise characterization and attenuation using linear predictive coding |
CN110047529B (zh) * | 2019-05-15 | 2024-02-20 | 中国人民解放军海军潜艇学院 | 一种信号自适应放大的多路音频记录设备及方法 |
CN117350099B (zh) * | 2023-09-11 | 2024-04-16 | 北京五瑞美阳医疗器械有限责任公司 | 基于有限元分析的呼吸机降噪结构优化方法 |
CN117037837B (zh) * | 2023-10-09 | 2023-12-12 | 广州伏羲智能科技有限公司 | 基于音轨分离技术的噪声分离方法和装置 |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1520148A (en) | 1975-10-09 | 1978-08-02 | Standard Telephones Cables Ltd | Adaptive lattice filter |
US4587620A (en) | 1981-05-09 | 1986-05-06 | Nippon Gakki Seizo Kabushiki Kaisha | Noise elimination device |
US4720802A (en) * | 1983-07-26 | 1988-01-19 | Lear Siegler | Noise compensation arrangement |
US5913187A (en) * | 1997-08-29 | 1999-06-15 | Nortel Networks Corporation | Nonlinear filter for noise suppression in linear prediction speech processing devices |
JP2001175298A (ja) * | 1999-12-13 | 2001-06-29 | Fujitsu Ltd | 騒音抑圧装置 |
US6925435B1 (en) * | 2000-11-27 | 2005-08-02 | Mindspeed Technologies, Inc. | Method and apparatus for improved noise reduction in a speech encoder |
US7065486B1 (en) * | 2002-04-11 | 2006-06-20 | Mindspeed Technologies, Inc. | Linear prediction based noise suppression |
US6892127B2 (en) | 2003-02-28 | 2005-05-10 | General Electric Company | Methods and apparatus for assessing gas turbine engine damage |
EP1580882B1 (de) * | 2004-03-19 | 2007-01-10 | Harman Becker Automotive Systems GmbH | System und Verfahren zur Verbesserung eines Audiosignals |
US7716046B2 (en) * | 2004-10-26 | 2010-05-11 | Qnx Software Systems (Wavemakers), Inc. | Advanced periodic signal enhancement |
EP2054882B1 (de) * | 2006-08-15 | 2011-01-19 | Dolby Laboratories Licensing Corporation | Arbiträre formung einer temporären rauschhüllkurve ohne nebeninformation |
-
2006
- 2006-09-15 AT AT0154706A patent/AT504164B1/de not_active IP Right Cessation
-
2007
- 2007-09-06 US US12/440,952 patent/US20100049507A1/en not_active Abandoned
- 2007-09-06 DE DE502007006264T patent/DE502007006264D1/de active Active
- 2007-09-06 WO PCT/AT2007/000424 patent/WO2008031124A1/de active Application Filing
- 2007-09-06 AT AT07800169T patent/ATE495523T1/de active
- 2007-09-06 EP EP07800169A patent/EP2080197B1/de not_active Not-in-force
Also Published As
Publication number | Publication date |
---|---|
EP2080197A1 (de) | 2009-07-22 |
AT504164B1 (de) | 2009-04-15 |
ATE495523T1 (de) | 2011-01-15 |
EP2080197B1 (de) | 2011-01-12 |
AT504164A1 (de) | 2008-03-15 |
WO2008031124A1 (de) | 2008-03-20 |
US20100049507A1 (en) | 2010-02-25 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE502007006264D1 (de) | Vorrichtung zur geräuschunterdrückung bei einem audiosignal | |
ATE420431T1 (de) | Grundfrequenzextraktion mit adaptivem filter | |
CN1719516B (zh) | 自适应滤波装置以及自适应滤波方法 | |
DE602007004738D1 (de) | Verfahren zur unterdrückung akustischer restechos nach echounterdrückung bei einer freisprecheinrichtung | |
ATE522985T1 (de) | Akustische echokompensierung | |
DE602005006957D1 (de) | Verringerung der Rückkopplung von Kommunikationssystemen | |
ITTO20090431A1 (it) | Filtro passabanda a condensatori commutati di tipo tempo-discreto, in particolare per la cancellazione dell'offset e di rumore a bassa frequenza di stadi a condensatori commutati | |
ATE450983T1 (de) | Kompensation des echos und der rückkopplung | |
WO2011006496A8 (en) | Method and processing unit for adaptive wind noise suppression in a hearing aid system and a hearing aid system | |
ATE535905T1 (de) | Verfahren zur geräuschdämpfung eines audiosignals | |
DE602007003613D1 (de) | Schaltungsanordnung zur unterdrückung akustischer echos bei einer freisprecheinrichtung verwendbar mit einem tragbaren telefon | |
WO2008002874A3 (en) | Active noise reduction with adaptive filter leakage adjusting | |
DE602007004217D1 (de) | Schnelle Schätzung der Spektraldichte der Rauschleistung zur Sprachsignalverbesserung | |
DE602006005529D1 (de) | Klasse-D Verstärker | |
MY164797A (en) | Apparatus and method for processing a decoded audio signal in a spectral domain | |
ATE430975T1 (de) | Reduzierung von hintergrundrauschen in freisprechsystemen | |
WO2008126287A1 (ja) | 能動消音装置および能動消音方法 | |
ATE410820T1 (de) | Verstärkerschaltung für kapazitive umformer | |
CA2998689C (en) | Encoder and method for encoding an audio signal with reduced background noise using linear predictive coding | |
ATE484160T1 (de) | Verfahren zur rückkopplungslöschung in einem hörgerät und hörgerät | |
ATE460053T1 (de) | Hörgerät mit modellierter rückkopplungsverstärkungsschätzung | |
DE60308336D1 (de) | Verfahren und system zur messung der übertragungsqualität eines systems | |
DE602006008111D1 (de) | Verfahren zur messung von durch geräusche in einem audiosignal verursachten beeinträchtigungen | |
WO2012020394A3 (en) | Background sound removal for privacy and personalization use | |
ATE484887T1 (de) | Verfahren zur entwicklung eines digitalen empfangsfilters und dazugehörige empfangsvorrichtung |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
R082 | Change of representative |
Ref document number: 2080197 Country of ref document: EP Representative=s name: PATENTANWAELTE LIPPERT, STACHOW & PARTNER, DE |