EP0655731A3 - Rauschunterdrückungseinrichtung zur Vorverarbeitung und/oder Nachbearbeitung von Sprachsignalen. - Google Patents

Rauschunterdrückungseinrichtung zur Vorverarbeitung und/oder Nachbearbeitung von Sprachsignalen. 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

English (en)

French (fr)

Other versions

EP0655731A2 (de

EP0655731B1 (de

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/de

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

2000-03-29 Application granted granted Critical

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

2014-11-29 Anticipated expiration legal-status Critical

Status Expired - Lifetime legal-status Critical Current

Links

238000012805 post-processing Methods 0.000 title 1
238000007781 pre-processing Methods 0.000 title 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
- 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 Rauschunterdrückungseinrichtung zur Vorverarbeitung und/oder Nachbearbeitung von Sprachsignalen Expired - Lifetime EP0655731B1 (de)

Applications Claiming Priority (3)

Application Number	Priority Date	Filing Date	Title
JP29717693A JP2739811B2 (ja)	1993-11-29	1993-11-29	雑音抑圧方式
JP29717693		1993-11-29
JP297176/93		1993-11-29

Publications (3)

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

Family

ID=17843166

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP19940118782 Expired - Lifetime EP0655731B1 (de)	1993-11-29	1994-11-29	Rauschunterdrückungseinrichtung zur Vorverarbeitung und/oder Nachbearbeitung von Sprachsignalen

Country Status (3)

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

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
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
US7225001B1 (en)	2000-04-24	2007-05-29	Telefonaktiebolaget Lm Ericsson (Publ)	System and method for distributed noise suppression
KR101235830B1 (ko) *	2007-12-06	2013-02-21	한국전자통신연구원	음성코덱의 품질향상장치 및 그 방법
EP2603914A4 (de) *	2010-08-11	2014-11-19	Bone Tone Comm Ltd	Hintergrundklangunterdrückung zur verwendung für privatsphärensicherung und personalisierung
JP6759898B2 (ja) *	2016-09-08	2020-09-23	富士通株式会社	発話区間検出装置、発話区間検出方法及び発話区間検出用コンピュータプログラム

Citations (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
EP0438174A2 (de) *	1990-01-18	1991-07-24	Matsushita Electric Industrial Co., Ltd.	Einrichtung zur Signalverarbeitung
EP0459364A1 (de) *	1990-05-28	1991-12-04	Matsushita Electric Industrial Co., Ltd.	Geräuschsignalvorhersagevorrichtung
JPH05188994A (ja) *	1992-01-07	1993-07-30	Sony Corp	騒音抑圧装置

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

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
EP0438174A2 (de) *	1990-01-18	1991-07-24	Matsushita Electric Industrial Co., Ltd.	Einrichtung zur Signalverarbeitung
EP0459364A1 (de) *	1990-05-28	1991-12-04	Matsushita Electric Industrial Co., Ltd.	Geräuschsignalvorhersagevorrichtung
JPH05188994A (ja) *	1992-01-07	1993-07-30	Sony Corp	騒音抑圧装置
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 (de)	1995-05-31
JP2739811B2 (ja)	1998-04-15
JPH07152395A (ja)	1995-06-16
DE69423703T2 (de)	2000-07-27
EP0655731B1 (de)	2000-03-29
DE69423703D1 (de)	2000-05-04

Legal Events

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1995-04-13	PUAI	Public reference made under article 153(3) epc to a published international application that has entered the european phase	Free format text: ORIGINAL CODE: 0009012
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