EP0655731A3 - Noise suppressor available in pre-processing and/or post-processing of a speech signal. - Google Patents

Noise suppressor available in pre-processing and/or post-processing of a speech signal. Download PDF

Info

Publication number: EP0655731A3
Authority: EP; European Patent Office
Prior art keywords: processing; post; speech signal; noise suppressor; suppressor available
Prior art date: 1993-11-29
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

Application number

EP94118782A

Other languages

German (de)

French (fr)

Other versions

EP0655731A2 (en

EP0655731B1 (en

Inventor

Kazunori Ozawa

Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)

NEC Corp

Original Assignee

NEC Corp

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.)

1993-11-29

Filing date

1994-11-29

Publication date

1997-05-28

1994-11-29 Application filed by NEC Corp filed Critical NEC Corp

1995-05-31 Publication of EP0655731A2 publication Critical patent/EP0655731A2/en

1997-05-28 Publication of EP0655731A3 publication Critical patent/EP0655731A3/en

2000-03-29 Application granted granted Critical

2000-03-29 Publication of EP0655731B1 publication Critical patent/EP0655731B1/en

2014-11-29 Anticipated expiration legal-status Critical

Status Expired - Lifetime legal-status Critical Current

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
- 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
- G10L21/0316—Speech enhancement, e.g. noise reduction or echo cancellation by changing the amplitude
- G10L21/0364—Speech enhancement, e.g. noise reduction or echo cancellation by changing the amplitude for improving intelligibility

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)
Noise Elimination (AREA)
Filters That Use Time-Delay Elements (AREA)

EP19940118782 1993-11-29 1994-11-29 Noise suppressor available in pre-processing and/or post-processing of a speech signal Expired - Lifetime EP0655731B1 (en)

Applications Claiming Priority (3)

Application Number	Priority Date	Filing Date	Title
JP297176/93		1993-11-29
JP29717693A JP2739811B2 (en)	1993-11-29	1993-11-29	Noise suppression method
JP29717693		1993-11-29

Publications (3)

Publication Number	Publication Date
EP0655731A2 EP0655731A2 (en)	1995-05-31
EP0655731A3 true EP0655731A3 (en)	1997-05-28
EP0655731B1 EP0655731B1 (en)	2000-03-29

Family

ID=17843166

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP19940118782 Expired - Lifetime EP0655731B1 (en)	1993-11-29	1994-11-29	Noise suppressor available in pre-processing and/or post-processing of a speech signal

Country Status (3)

Country	Link
EP (1)	EP0655731B1 (en)
JP (1)	JP2739811B2 (en)
DE (1)	DE69423703T2 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JP3591068B2 (en) *	1995-06-30	2004-11-17	ソニー株式会社	Noise reduction method for audio signal
US7225001B1 (en)	2000-04-24	2007-05-29	Telefonaktiebolaget Lm Ericsson (Publ)	System and method for distributed noise suppression
KR101235830B1 (en) *	2007-12-06	2013-02-21	한국전자통신연구원	Apparatus for enhancing quality of speech codec and method therefor
KR20140061285A (en) *	2010-08-11	2014-05-21	본 톤 커뮤니케이션즈 엘티디.	Background sound removal for privacy and personalization use
JP6759898B2 (en)	2016-09-08	2020-09-23	富士通株式会社	Utterance section detection device, utterance section detection method, and computer program for utterance section detection

Citations (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
EP0438174A2 (en) *	1990-01-18	1991-07-24	Matsushita Electric Industrial Co., Ltd.	Signal processing device
EP0459364A1 (en) *	1990-05-28	1991-12-04	Matsushita Electric Industrial Co., Ltd.	Noise signal prediction system
JPH05188994A (en) *	1992-01-07	1993-07-30	Sony Corp	Noise suppression device

1993
- 1993-11-29 JP JP29717693A patent/JP2739811B2/en not_active Expired - Lifetime
1994
- 1994-11-29 EP EP19940118782 patent/EP0655731B1/en not_active Expired - Lifetime
- 1994-11-29 DE DE1994623703 patent/DE69423703T2/en not_active Expired - Lifetime

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
EP0438174A2 (en) *	1990-01-18	1991-07-24	Matsushita Electric Industrial Co., Ltd.	Signal processing device
EP0459364A1 (en) *	1990-05-28	1991-12-04	Matsushita Electric Industrial Co., Ltd.	Noise signal prediction system
JPH05188994A (en) *	1992-01-07	1993-07-30	Sony Corp	Noise suppression device
US5353408A (en) *	1992-01-07	1994-10-04	Sony Corporation	Noise suppressor

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PALIWAL K K: "Speech enhancement using multipulse excited linear prediction system", ICASSP 86 PROCEEDINGS. IEEE-IECEJ-ASJ INTERNATIONAL CONFERENCE ON ACOUSTICS, SPEECH AND SIGNAL PROCESSING (CAT. NO.86CH2243-4), TOKYO, JAPAN, 7-11 APRIL 1986, 1986, NEW YORK, NY, USA, IEEE, USA, PAGE(S) 101 - 104 VOL.1, XP002027701 *

Also Published As

Publication number	Publication date
EP0655731A2 (en)	1995-05-31
JPH07152395A (en)	1995-06-16
EP0655731B1 (en)	2000-03-29
DE69423703T2 (en)	2000-07-27
JP2739811B2 (en)	1998-04-15
DE69423703D1 (en)	2000-05-04

Publication	Publication Date	Title
DE68922426D1 (en)	1995-06-08	Noise reduction with a noisy speech signal.
DE69423693D1 (en)	2000-05-04	System for adapted reduction of noise in speech signals
EP0673014A3 (en)	1997-05-02	Acoustic signal transform coding method and decoding method.
DE69421352D1 (en)	1999-12-02	Reduction of noise in image signals
IL118536A (en)	1999-09-22	Noise cancellation and noise reduction apparatus
SG50487A1 (en)	1998-07-20	Speech recognition
SG93215A1 (en)	2002-12-17	Speech recognition
SG50489A1 (en)	1998-07-20	Connected speech recognition
GB2281680B (en)	1998-08-26	A voice activity detector for an echo suppressor and an echo suppressor
EP0683482A3 (en)	1997-12-03	Method for reducing noise in speech signal and method for detecting noise domain
FI962305A (en)	1996-05-31	Sound enhancement system and method
FI941433A0 (en)	1994-03-28	Noise reduction for speech recognition
GR3029730T3 (en)	1999-06-30	Discriminating between stationary and non-stationary signals.
FI944343A (en)	1995-03-21	Noise reduction method, especially for automatic speech recognition, and a filter for implementing the method
DE69217444D1 (en)	1997-03-27	Noise reduction in image-transmitted video signals
GB2285376B (en)	1998-08-19	Noise suppression of acoustic signal in telephone set
AU642311B2 (en)	1993-10-14	Method and system for speech recognition without noise interference
EP0458615A3 (en)	1992-03-04	Speech recognition method with noise reduction and a system therefor
AU8102198A (en)	1999-01-25	A method of noise reduction in speech signals and an apparatus for performing the method
GB2269071B (en)	1996-02-28	Noise suppression in image signals
GR3032107T3 (en)	2000-03-31	Discriminating between stationary and non-stationary signals.
EP0467661A3 (en)	1992-07-15	Signal processing and recognition
EP0618565A3 (en)	1996-06-26	Interactive dynamic grammar constraint in speech recognition.
EP0655731A3 (en)	1997-05-28	Noise suppressor available in pre-processing and/or post-processing of a speech signal.
GB2285203B (en)	1998-10-28	Multipulse processing of speech signals

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