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
EP0655731A3 EP94118782A EP94118782A EP0655731A3 EP 0655731 A3 EP0655731 A3 EP 0655731A3 EP 94118782 A EP94118782 A EP 94118782A EP 94118782 A EP94118782 A EP 94118782A EP 0655731 A3 EP0655731 A3 EP 0655731A3
Authority
EP
European Patent Office
Prior art keywords
processing
post
speech signal
noise suppressor
suppressor available
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.)
Granted
Application number
EP94118782A
Other languages
German (de)
French (fr)
Other versions
EP0655731B1 (en
EP0655731A2 (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.)
Filing date
Publication date
Application filed by NEC Corp filed Critical NEC Corp
Publication of EP0655731A2 publication Critical patent/EP0655731A2/en
Publication of EP0655731A3 publication Critical patent/EP0655731A3/en
Application granted granted Critical
Publication of EP0655731B1 publication Critical patent/EP0655731B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • 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)
  • Filters That Use Time-Delay Elements (AREA)
  • Noise Elimination (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
JP29717693A JP2739811B2 (en) 1993-11-29 1993-11-29 Noise suppression method
JP297176/93 1993-11-29
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
EP2603914A4 (en) * 2010-08-11 2014-11-19 Bone Tone Comm Ltd 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

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

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