EP1202253A3 - Estimateur actif de niveau de bruit - Google Patents
Estimateur actif de niveau de bruit Download PDFInfo
- Publication number
- EP1202253A3 EP1202253A3 EP01440295A EP01440295A EP1202253A3 EP 1202253 A3 EP1202253 A3 EP 1202253A3 EP 01440295 A EP01440295 A EP 01440295A EP 01440295 A EP01440295 A EP 01440295A EP 1202253 A3 EP1202253 A3 EP 1202253A3
- Authority
- EP
- European Patent Office
- Prior art keywords
- noise level
- value
- input signal
- determined
- estimate
- 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
- 230000003044 adaptive effect Effects 0.000 title 1
- 230000006978 adaptation 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
Landscapes
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Health & Medical Sciences (AREA)
- Audiology, Speech & Language Pathology (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- Computational Linguistics (AREA)
- Quality & Reliability (AREA)
- Multimedia (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
- Noise Elimination (AREA)
- Telephonic Communication Services (AREA)
- Monitoring And Testing Of Transmission In General (AREA)
- Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
- Telephone Function (AREA)
- Monitoring And Testing Of Exchanges (AREA)
- Control Of Amplification And Gain Control (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10052626A DE10052626A1 (de) | 2000-10-24 | 2000-10-24 | Adaptiver Geräuschpegelschätzer |
| DE10052626 | 2000-10-24 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP1202253A2 EP1202253A2 (fr) | 2002-05-02 |
| EP1202253A3 true EP1202253A3 (fr) | 2004-01-02 |
| EP1202253B1 EP1202253B1 (fr) | 2005-04-20 |
Family
ID=7660840
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP01440295A Expired - Lifetime EP1202253B1 (fr) | 2000-10-24 | 2001-09-12 | Estimateur actif de niveau de bruit |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US6842526B2 (fr) |
| EP (1) | EP1202253B1 (fr) |
| JP (1) | JP2002198918A (fr) |
| AT (1) | ATE293828T1 (fr) |
| DE (2) | DE10052626A1 (fr) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4601970B2 (ja) * | 2004-01-28 | 2010-12-22 | 株式会社エヌ・ティ・ティ・ドコモ | 有音無音判定装置および有音無音判定方法 |
| JP4490090B2 (ja) * | 2003-12-25 | 2010-06-23 | 株式会社エヌ・ティ・ティ・ドコモ | 有音無音判定装置および有音無音判定方法 |
| US20050226442A1 (en) * | 2004-04-12 | 2005-10-13 | Landon Michael D | Method and apparatus for achieving temporal volume control |
| JP4551817B2 (ja) * | 2005-05-20 | 2010-09-29 | Okiセミコンダクタ株式会社 | ノイズレベル推定方法及びその装置 |
| US8275153B2 (en) * | 2007-04-16 | 2012-09-25 | Evertz Microsystems Ltd. | System and method for generating an audio gain control signal |
| US8894316B2 (en) * | 2009-07-22 | 2014-11-25 | Music Express, Llc | Adjustable joint for microphone |
| CN103238180A (zh) * | 2010-11-25 | 2013-08-07 | 日本电气株式会社 | 信号处理设备、信号处理方法及信号处理程序 |
| US10978096B2 (en) * | 2017-04-25 | 2021-04-13 | Qualcomm Incorporated | Optimized uplink operation for voice over long-term evolution (VoLte) and voice over new radio (VoNR) listen or silent periods |
| CN119889334A (zh) * | 2019-08-30 | 2025-04-25 | 杜比实验室特许公司 | 针对机器感知预调节音频 |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5341456A (en) * | 1992-12-02 | 1994-08-23 | Qualcomm Incorporated | Method for determining speech encoding rate in a variable rate vocoder |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3855423A (en) * | 1973-05-03 | 1974-12-17 | Bell Telephone Labor Inc | Noise spectrum equalizer |
| US4000369A (en) * | 1974-12-05 | 1976-12-28 | Rockwell International Corporation | Analog signal channel equalization with signal-in-noise embodiment |
| DE3243232A1 (de) * | 1982-11-23 | 1984-05-24 | Philips Kommunikations Industrie AG, 8500 Nürnberg | Verfahren zur erkennung von sprachpausen |
| US4885790A (en) * | 1985-03-18 | 1989-12-05 | Massachusetts Institute Of Technology | Processing of acoustic waveforms |
| WO1989008910A1 (fr) * | 1988-03-11 | 1989-09-21 | British Telecommunications Public Limited Company | Detection d'activite vocale |
| WO1992015986A1 (fr) * | 1991-03-05 | 1992-09-17 | Picturetel Corporation | Codeur vocal a debit binaire variable |
| US5485522A (en) * | 1993-09-29 | 1996-01-16 | Ericsson Ge Mobile Communications, Inc. | System for adaptively reducing noise in speech signals |
-
2000
- 2000-10-24 DE DE10052626A patent/DE10052626A1/de not_active Withdrawn
-
2001
- 2001-09-12 DE DE50105947T patent/DE50105947D1/de not_active Expired - Fee Related
- 2001-09-12 EP EP01440295A patent/EP1202253B1/fr not_active Expired - Lifetime
- 2001-09-12 AT AT01440295T patent/ATE293828T1/de not_active IP Right Cessation
- 2001-10-11 US US09/973,828 patent/US6842526B2/en not_active Expired - Fee Related
- 2001-10-18 JP JP2001320228A patent/JP2002198918A/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5341456A (en) * | 1992-12-02 | 1994-08-23 | Qualcomm Incorporated | Method for determining speech encoding rate in a variable rate vocoder |
Non-Patent Citations (3)
| Title |
|---|
| ANONYMOUS: "Digital Signal Processing Algorithm for Microphone Input Energy Detection Having Adaptive Sensitivity", IBM TECHNICAL DISCLOSURE BULLETIN, vol. 29, no. 12, 1 May 1987 (1987-05-01), New York, US, pages 5606 - 5609, XP002258379 * |
| BERTOCCO M ET AL: "Non-intrusive measurement of impulsive noise in telephone-type networks", INSTRUMENTATION AND MEASUREMENT TECHNOLOGY CONFERENCE, 1997. IMTC/97. PROCEEDINGS. SENSING, PROCESSING, NETWORKING., IEEE OTTAWA, ONT., CANADA 19-21 MAY 1997, NEW YORK, NY, USA,IEEE, US, 19 May 1997 (1997-05-19), pages 451 - 456, XP010233528, ISBN: 0-7803-3747-6 * |
| DERMATAS E S ET AL: "Fast endpoint detection algorithm for isolated word recognition in office environment", SPEECH PROCESSING 2, VLSI, UNDERWATER SIGNAL PROCESSING. TORONTO, MAY 14 - 17, 1991, INTERNATIONAL CONFERENCE ON ACOUSTICS, SPEECH & SIGNAL PROCESSING. ICASSP, NEW YORK, IEEE, US, vol. 2 CONF. 16, 14 April 1991 (1991-04-14), pages 733 - 736, XP010043080, ISBN: 0-7803-0003-3 * |
Also Published As
| Publication number | Publication date |
|---|---|
| EP1202253B1 (fr) | 2005-04-20 |
| DE50105947D1 (de) | 2005-05-25 |
| ATE293828T1 (de) | 2005-05-15 |
| EP1202253A2 (fr) | 2002-05-02 |
| JP2002198918A (ja) | 2002-07-12 |
| US20020064288A1 (en) | 2002-05-30 |
| US6842526B2 (en) | 2005-01-11 |
| DE10052626A1 (de) | 2002-05-02 |
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