EP1748426A3 - Verfahren und Vorrichtung zur adaptiven Rauschunterdrückung - Google Patents
Verfahren und Vorrichtung zur adaptiven Rauschunterdrückung Download PDFInfo
- Publication number
- EP1748426A3 EP1748426A3 EP06020682A EP06020682A EP1748426A3 EP 1748426 A3 EP1748426 A3 EP 1748426A3 EP 06020682 A EP06020682 A EP 06020682A EP 06020682 A EP06020682 A EP 06020682A EP 1748426 A3 EP1748426 A3 EP 1748426A3
- Authority
- EP
- European Patent Office
- Prior art keywords
- nsr
- signal
- power
- term
- overall
- 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.)
- Withdrawn
Links
Classifications
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
- G10L21/00—Processing of the speech or voice signal 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 OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
- G10L21/00—Processing of the speech or voice signal 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
- G10L21/0232—Processing in the frequency domain
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; 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
- G10L25/18—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 spectral information of each sub-band
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11524599P | 1999-01-07 | 1999-01-07 | |
EP00902355A EP1141948B1 (de) | 1999-01-07 | 2000-01-07 | Verfahren und vorrichtung zur adaptiven rauschunterdrückung |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP00902355A Division EP1141948B1 (de) | 1999-01-07 | 2000-01-07 | Verfahren und vorrichtung zur adaptiven rauschunterdrückung |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1748426A2 EP1748426A2 (de) | 2007-01-31 |
EP1748426A3 true EP1748426A3 (de) | 2007-02-21 |
Family
ID=37198612
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP06020682A Withdrawn EP1748426A3 (de) | 1999-01-07 | 2000-01-07 | Verfahren und Vorrichtung zur adaptiven Rauschunterdrückung |
EP06076642A Withdrawn EP1729287A1 (de) | 1999-01-07 | 2000-01-07 | Verfahren und Vorrichtung für adaptive Rauschunterdrückung |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP06076642A Withdrawn EP1729287A1 (de) | 1999-01-07 | 2000-01-07 | Verfahren und Vorrichtung für adaptive Rauschunterdrückung |
Country Status (1)
Country | Link |
---|---|
EP (2) | EP1748426A3 (de) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE112007003674T5 (de) * | 2007-10-02 | 2010-08-12 | Akg Acoustics Gmbh | Methode und Apparat zur Einkanal-Sprachverbesserung basierend auf einem latenzzeitreduzierten Gehörmodell |
TWI397058B (zh) * | 2008-07-29 | 2013-05-21 | Lg Electronics Inc | 音頻訊號之處理裝置及其方法,及電腦可讀取之紀錄媒體 |
WO2010104300A2 (en) | 2009-03-08 | 2010-09-16 | Lg Electronics Inc. | An apparatus for processing an audio signal and method thereof |
GB201704489D0 (en) | 2017-03-21 | 2017-05-03 | Semafone Ltd | Telephone signal processing |
CN110431625B (zh) * | 2019-06-21 | 2023-06-23 | 深圳市汇顶科技股份有限公司 | 语音检测方法、语音检测装置、语音处理芯片以及电子设备 |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4630305A (en) * | 1985-07-01 | 1986-12-16 | Motorola, Inc. | Automatic gain selector for a noise suppression system |
US4630304A (en) * | 1985-07-01 | 1986-12-16 | Motorola, Inc. | Automatic background noise estimator for a noise suppression system |
WO1989003141A1 (en) * | 1987-10-01 | 1989-04-06 | Motorola, Inc. | Improved noise suppression system |
US5012519A (en) * | 1987-12-25 | 1991-04-30 | The Dsp Group, Inc. | Noise reduction system |
WO1996024128A1 (en) * | 1995-01-30 | 1996-08-08 | Telefonaktiebolaget Lm Ericsson | Spectral subtraction noise suppression method |
US5632003A (en) * | 1993-07-16 | 1997-05-20 | Dolby Laboratories Licensing Corporation | Computationally efficient adaptive bit allocation for coding method and apparatus |
US5706395A (en) * | 1995-04-19 | 1998-01-06 | Texas Instruments Incorporated | Adaptive weiner filtering using a dynamic suppression factor |
EP0856833A2 (de) * | 1997-01-29 | 1998-08-05 | Nec Corporation | Verfahren und Vorrichtung zur Rauschdämpfung |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4351983A (en) | 1979-03-05 | 1982-09-28 | International Business Machines Corp. | Speech detector with variable threshold |
US4454609A (en) | 1981-10-05 | 1984-06-12 | Signatron, Inc. | Speech intelligibility enhancement |
US4628529A (en) | 1985-07-01 | 1986-12-09 | Motorola, Inc. | Noise suppression system |
-
2000
- 2000-01-07 EP EP06020682A patent/EP1748426A3/de not_active Withdrawn
- 2000-01-07 EP EP06076642A patent/EP1729287A1/de not_active Withdrawn
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4630305A (en) * | 1985-07-01 | 1986-12-16 | Motorola, Inc. | Automatic gain selector for a noise suppression system |
US4630304A (en) * | 1985-07-01 | 1986-12-16 | Motorola, Inc. | Automatic background noise estimator for a noise suppression system |
WO1989003141A1 (en) * | 1987-10-01 | 1989-04-06 | Motorola, Inc. | Improved noise suppression system |
US5012519A (en) * | 1987-12-25 | 1991-04-30 | The Dsp Group, Inc. | Noise reduction system |
US5632003A (en) * | 1993-07-16 | 1997-05-20 | Dolby Laboratories Licensing Corporation | Computationally efficient adaptive bit allocation for coding method and apparatus |
WO1996024128A1 (en) * | 1995-01-30 | 1996-08-08 | Telefonaktiebolaget Lm Ericsson | Spectral subtraction noise suppression method |
US5706395A (en) * | 1995-04-19 | 1998-01-06 | Texas Instruments Incorporated | Adaptive weiner filtering using a dynamic suppression factor |
EP0856833A2 (de) * | 1997-01-29 | 1998-08-05 | Nec Corporation | Verfahren und Vorrichtung zur Rauschdämpfung |
Non-Patent Citations (1)
Title |
---|
GAGNON L ET AL: "SPEECH ENHANCEMENT USING RESONATOR FILTERBANKS", PROC. IEEE INTERNATIONAL CONFERENCE ON ACOUSTICS, SPEECH & SIGNAL PROCESSING (ICASSP '91), 14 May 1991 (1991-05-14) - 17 May 1991 (1991-05-17), IEEE, NEW YORK, USA, pages 981 - 984, XP000222243, ISBN: 0-7803-0003-3 * |
Also Published As
Publication number | Publication date |
---|---|
EP1748426A2 (de) | 2007-01-31 |
EP1729287A1 (de) | 2006-12-06 |
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Legal Events
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PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
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Effective date: 20070917 |
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AKX | Designation fees paid |
Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE |
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RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: TELLABS OPERATIONS, INC. |
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STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
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18D | Application deemed to be withdrawn |
Effective date: 20100310 |