FI944343A - Kohinanvaimennusmenetelmä, erityisesti automaattista puheentunnistusta varten, ja suodatin menetelmän toteuttamiseksi - Google Patents

Kohinanvaimennusmenetelmä, erityisesti automaattista puheentunnistusta varten, ja suodatin menetelmän toteuttamiseksi Download PDF

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Publication number
FI944343A
FI944343A FI944343A FI944343A FI944343A FI 944343 A FI944343 A FI 944343A FI 944343 A FI944343 A FI 944343A FI 944343 A FI944343 A FI 944343A FI 944343 A FI944343 A FI 944343A
Authority
FI
Finland
Prior art keywords
implementing
filter
noise reduction
speech recognition
automatic speech
Prior art date
Application number
FI944343A
Other languages
English (en)
Swedish (sv)
Other versions
FI944343A0 (fi
Inventor
Clara Pelaez
Original Assignee
Alcatel Nv
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Alcatel Nv filed Critical Alcatel Nv
Publication of FI944343A0 publication Critical patent/FI944343A0/fi
Publication of FI944343A publication Critical patent/FI944343A/fi

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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)
  • Telephone Function (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Noise Elimination (AREA)
FI944343A 1993-09-20 1994-09-19 Kohinanvaimennusmenetelmä, erityisesti automaattista puheentunnistusta varten, ja suodatin menetelmän toteuttamiseksi FI944343A (fi)

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 FI944343A0 (fi) 1994-09-19
FI944343A true 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)

* Cited by examiner, † Cited by third party
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
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
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
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
US6453285B1 (en) 1998-08-21 2002-09-17 Polycom, Inc. Speech activity detector for use in noise reduction system, and methods 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)

* Cited by examiner, † Cited by third party
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
EP0763812B1 (en) * 1990-05-28 2001-06-20 Matsushita Electric Industrial Co., Ltd. Speech signal processing apparatus for detecting a speech signal from a noisy speech signal
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

Also Published As

Publication number Publication date
ITMI932018A1 (it) 1995-03-20
EP0644526A1 (en) 1995-03-22
ITMI932018A0 (it) 1993-09-20
US5577161A (en) 1996-11-19
IT1272653B (it) 1997-06-26
FI944343A0 (fi) 1994-09-19

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