FI944343A0 - Kohinanvaimennusmenetelmä, erityisesti automaattista puheentunnistusta varten, ja suodatin menetelmän toteuttamiseksi - Google Patents
Kohinanvaimennusmenetelmä, erityisesti automaattista puheentunnistusta varten, ja suodatin menetelmän toteuttamiseksiInfo
- Publication number
- FI944343A0 FI944343A0 FI944343A FI944343A FI944343A0 FI 944343 A0 FI944343 A0 FI 944343A0 FI 944343 A FI944343 A FI 944343A FI 944343 A FI944343 A FI 944343A FI 944343 A0 FI944343 A0 FI 944343A0
- Authority
- FI
- Finland
- Prior art keywords
- implementing
- filter
- noise reduction
- speech recognition
- automatic speech
- Prior art date
Links
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)
- Computational Linguistics (AREA)
- Quality & Reliability (AREA)
- Signal Processing (AREA)
- Health & Medical Sciences (AREA)
- Audiology, Speech & Language Pathology (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
- Telephone Function (AREA)
- Noise Elimination (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ITMI932018A IT1272653B (it) | 1993-09-20 | 1993-09-20 | Metodo di riduzione del rumore, in particolare per riconoscimento automatico del parlato, e filtro atto ad implementare lo stesso |
Publications (2)
Publication Number | Publication Date |
---|---|
FI944343A0 true FI944343A0 (fi) | 1994-09-19 |
FI944343A FI944343A (fi) | 1995-03-21 |
Family
ID=11366923
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FI944343A FI944343A (fi) | 1993-09-20 | 1994-09-19 | Kohinanvaimennusmenetelmä, erityisesti automaattista puheentunnistusta varten, ja suodatin menetelmän toteuttamiseksi |
Country Status (4)
Country | Link |
---|---|
US (1) | US5577161A (fi) |
EP (1) | EP0644526A1 (fi) |
FI (1) | FI944343A (fi) |
IT (1) | IT1272653B (fi) |
Families Citing this family (24)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3453898B2 (ja) * | 1995-02-17 | 2003-10-06 | ソニー株式会社 | 音声信号の雑音低減方法及び装置 |
DE19521258A1 (de) * | 1995-06-10 | 1996-12-12 | Philips Patentverwaltung | Spracherkennungssystem |
JP3591068B2 (ja) * | 1995-06-30 | 2004-11-17 | ソニー株式会社 | 音声信号の雑音低減方法 |
JP3452443B2 (ja) * | 1996-03-25 | 2003-09-29 | 三菱電機株式会社 | 騒音下音声認識装置及び騒音下音声認識方法 |
US5963899A (en) * | 1996-08-07 | 1999-10-05 | U S West, Inc. | Method and system for region based filtering of speech |
KR100250561B1 (ko) * | 1996-08-29 | 2000-04-01 | 니시무로 타이죠 | 잡음소거기 및 이 잡음소거기를 사용한 통신장치 |
US6098038A (en) * | 1996-09-27 | 2000-08-01 | Oregon Graduate Institute Of Science & Technology | Method and system for adaptive speech enhancement using frequency specific signal-to-noise ratio estimates |
US6092040A (en) * | 1997-11-21 | 2000-07-18 | Voran; Stephen | Audio signal time offset estimation algorithm and measuring normalizing block algorithms for the perceptually-consistent comparison of speech signals |
US6097776A (en) * | 1998-02-12 | 2000-08-01 | Cirrus Logic, Inc. | Maximum likelihood estimation of symbol offset |
US6144735A (en) * | 1998-03-12 | 2000-11-07 | Westell Technologies, Inc. | Filters for a digital subscriber line system for voice communication over a telephone line |
US6115466A (en) * | 1998-03-12 | 2000-09-05 | Westell Technologies, Inc. | Subscriber line system having a dual-mode filter for voice communications over a telephone line |
US6453285B1 (en) | 1998-08-21 | 2002-09-17 | Polycom, Inc. | Speech activity detector for use in noise reduction system, and methods therefor |
US6351731B1 (en) | 1998-08-21 | 2002-02-26 | Polycom, Inc. | Adaptive filter featuring spectral gain smoothing and variable noise multiplier for noise reduction, and method therefor |
US6122610A (en) * | 1998-09-23 | 2000-09-19 | Verance Corporation | Noise suppression for low bitrate speech coder |
US6327564B1 (en) * | 1999-03-05 | 2001-12-04 | Matsushita Electric Corporation Of America | Speech detection using stochastic confidence measures on the frequency spectrum |
JP4344964B2 (ja) * | 1999-06-01 | 2009-10-14 | ソニー株式会社 | 画像処理装置および画像処理方法 |
US6349278B1 (en) * | 1999-08-04 | 2002-02-19 | Ericsson Inc. | Soft decision signal estimation |
US6137880A (en) * | 1999-08-27 | 2000-10-24 | Westell Technologies, Inc. | Passive splitter filter for digital subscriber line voice communication for complex impedance terminations |
EP1244094A1 (de) * | 2001-03-20 | 2002-09-25 | Swissqual AG | Verfahren und Vorrichtung zur Bestimmung eines Qualitätsmasses eines Audiosignals |
US7289626B2 (en) * | 2001-05-07 | 2007-10-30 | Siemens Communications, Inc. | Enhancement of sound quality for computer telephony systems |
EP1292036B1 (en) * | 2001-08-23 | 2012-08-01 | Nippon Telegraph And Telephone Corporation | Digital signal decoding methods and apparatuses |
JP4765461B2 (ja) * | 2005-07-27 | 2011-09-07 | 日本電気株式会社 | 雑音抑圧システムと方法及びプログラム |
US9437212B1 (en) * | 2013-12-16 | 2016-09-06 | Marvell International Ltd. | Systems and methods for suppressing noise in an audio signal for subbands in a frequency domain based on a closed-form solution |
CN109815877B (zh) * | 2019-01-17 | 2020-10-02 | 北京邮电大学 | 一种卫星信号的降噪处理方法及装置 |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IL84948A0 (en) * | 1987-12-25 | 1988-06-30 | D S P Group Israel Ltd | Noise reduction system |
DE3925589C2 (de) * | 1989-08-02 | 1994-03-17 | Blaupunkt Werke Gmbh | Verfahren und Anordnung zur Störbefreiung von Sprachsignalen |
US5097510A (en) * | 1989-11-07 | 1992-03-17 | Gs Systems, Inc. | Artificial intelligence pattern-recognition-based noise reduction system for speech processing |
KR950013552B1 (ko) * | 1990-05-28 | 1995-11-08 | 마쯔시다덴기산교 가부시기가이샤 | 음성신호처리장치 |
US5432859A (en) * | 1993-02-23 | 1995-07-11 | Novatel Communications Ltd. | Noise-reduction system |
US6060891A (en) * | 1997-02-11 | 2000-05-09 | Micron Technology, Inc. | Probe card for semiconductor wafers and method and system for testing wafers |
-
1993
- 1993-09-20 IT ITMI932018A patent/IT1272653B/it active IP Right Grant
-
1994
- 1994-08-23 EP EP94113124A patent/EP0644526A1/en not_active Ceased
- 1994-09-19 FI FI944343A patent/FI944343A/fi unknown
- 1994-09-20 US US08/309,015 patent/US5577161A/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
IT1272653B (it) | 1997-06-26 |
EP0644526A1 (en) | 1995-03-22 |
FI944343A (fi) | 1995-03-21 |
US5577161A (en) | 1996-11-19 |
ITMI932018A1 (it) | 1995-03-20 |
ITMI932018A0 (it) | 1993-09-20 |
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