EP1202253A3 - Estimateur actif de niveau de bruit - Google Patents

Estimateur actif de niveau de bruit Download PDF

Info

Publication number
EP1202253A3
EP1202253A3 EP01440295A EP01440295A EP1202253A3 EP 1202253 A3 EP1202253 A3 EP 1202253A3 EP 01440295 A EP01440295 A EP 01440295A EP 01440295 A EP01440295 A EP 01440295A EP 1202253 A3 EP1202253 A3 EP 1202253A3
Authority
EP
European Patent Office
Prior art keywords
noise level
value
input signal
determined
estimate
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
EP01440295A
Other languages
German (de)
English (en)
Other versions
EP1202253B1 (fr
EP1202253A2 (fr
Inventor
Michael Walker
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.)
Alcatel Lucent SAS
Nokia Inc
Original Assignee
Alcatel SA
Nokia Inc
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 SA, Nokia Inc filed Critical Alcatel SA
Publication of EP1202253A2 publication Critical patent/EP1202253A2/fr
Publication of EP1202253A3 publication Critical patent/EP1202253A3/fr
Application granted granted Critical
Publication of EP1202253B1 publication Critical patent/EP1202253B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G10MUSICAL INSTRUMENTS; ACOUSTICS
    • G10LSPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L21/00Speech 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
    • G10L21/02Speech enhancement, e.g. noise reduction or echo cancellation
    • G10L21/0208Noise filtering

Landscapes

  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • Computational Linguistics (AREA)
  • Quality & Reliability (AREA)
  • Multimedia (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Noise Elimination (AREA)
  • Telephonic Communication Services (AREA)
  • Monitoring And Testing Of Transmission In General (AREA)
  • Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
  • Telephone Function (AREA)
  • Monitoring And Testing Of Exchanges (AREA)
  • Control Of Amplification And Gain Control (AREA)
EP01440295A 2000-10-24 2001-09-12 Estimateur actif de niveau de bruit Expired - Lifetime EP1202253B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10052626A DE10052626A1 (de) 2000-10-24 2000-10-24 Adaptiver Geräuschpegelschätzer
DE10052626 2000-10-24

Publications (3)

Publication Number Publication Date
EP1202253A2 EP1202253A2 (fr) 2002-05-02
EP1202253A3 true EP1202253A3 (fr) 2004-01-02
EP1202253B1 EP1202253B1 (fr) 2005-04-20

Family

ID=7660840

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01440295A Expired - Lifetime EP1202253B1 (fr) 2000-10-24 2001-09-12 Estimateur actif de niveau de bruit

Country Status (5)

Country Link
US (1) US6842526B2 (fr)
EP (1) EP1202253B1 (fr)
JP (1) JP2002198918A (fr)
AT (1) ATE293828T1 (fr)
DE (2) DE10052626A1 (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4601970B2 (ja) * 2004-01-28 2010-12-22 株式会社エヌ・ティ・ティ・ドコモ 有音無音判定装置および有音無音判定方法
JP4490090B2 (ja) * 2003-12-25 2010-06-23 株式会社エヌ・ティ・ティ・ドコモ 有音無音判定装置および有音無音判定方法
US20050226442A1 (en) * 2004-04-12 2005-10-13 Landon Michael D Method and apparatus for achieving temporal volume control
JP4551817B2 (ja) * 2005-05-20 2010-09-29 Okiセミコンダクタ株式会社 ノイズレベル推定方法及びその装置
US8275153B2 (en) * 2007-04-16 2012-09-25 Evertz Microsystems Ltd. System and method for generating an audio gain control signal
US8894316B2 (en) * 2009-07-22 2014-11-25 Music Express, Llc Adjustable joint for microphone
CN103238180A (zh) * 2010-11-25 2013-08-07 日本电气株式会社 信号处理设备、信号处理方法及信号处理程序
US10978096B2 (en) * 2017-04-25 2021-04-13 Qualcomm Incorporated Optimized uplink operation for voice over long-term evolution (VoLte) and voice over new radio (VoNR) listen or silent periods
CN119889334A (zh) * 2019-08-30 2025-04-25 杜比实验室特许公司 针对机器感知预调节音频

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5341456A (en) * 1992-12-02 1994-08-23 Qualcomm Incorporated Method for determining speech encoding rate in a variable rate vocoder

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3855423A (en) * 1973-05-03 1974-12-17 Bell Telephone Labor Inc Noise spectrum equalizer
US4000369A (en) * 1974-12-05 1976-12-28 Rockwell International Corporation Analog signal channel equalization with signal-in-noise embodiment
DE3243232A1 (de) * 1982-11-23 1984-05-24 Philips Kommunikations Industrie AG, 8500 Nürnberg Verfahren zur erkennung von sprachpausen
US4885790A (en) * 1985-03-18 1989-12-05 Massachusetts Institute Of Technology Processing of acoustic waveforms
WO1989008910A1 (fr) * 1988-03-11 1989-09-21 British Telecommunications Public Limited Company Detection d'activite vocale
WO1992015986A1 (fr) * 1991-03-05 1992-09-17 Picturetel Corporation Codeur vocal a debit binaire variable
US5485522A (en) * 1993-09-29 1996-01-16 Ericsson Ge Mobile Communications, Inc. System for adaptively reducing noise in speech signals

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5341456A (en) * 1992-12-02 1994-08-23 Qualcomm Incorporated Method for determining speech encoding rate in a variable rate vocoder

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
ANONYMOUS: "Digital Signal Processing Algorithm for Microphone Input Energy Detection Having Adaptive Sensitivity", IBM TECHNICAL DISCLOSURE BULLETIN, vol. 29, no. 12, 1 May 1987 (1987-05-01), New York, US, pages 5606 - 5609, XP002258379 *
BERTOCCO M ET AL: "Non-intrusive measurement of impulsive noise in telephone-type networks", INSTRUMENTATION AND MEASUREMENT TECHNOLOGY CONFERENCE, 1997. IMTC/97. PROCEEDINGS. SENSING, PROCESSING, NETWORKING., IEEE OTTAWA, ONT., CANADA 19-21 MAY 1997, NEW YORK, NY, USA,IEEE, US, 19 May 1997 (1997-05-19), pages 451 - 456, XP010233528, ISBN: 0-7803-3747-6 *
DERMATAS E S ET AL: "Fast endpoint detection algorithm for isolated word recognition in office environment", SPEECH PROCESSING 2, VLSI, UNDERWATER SIGNAL PROCESSING. TORONTO, MAY 14 - 17, 1991, INTERNATIONAL CONFERENCE ON ACOUSTICS, SPEECH & SIGNAL PROCESSING. ICASSP, NEW YORK, IEEE, US, vol. 2 CONF. 16, 14 April 1991 (1991-04-14), pages 733 - 736, XP010043080, ISBN: 0-7803-0003-3 *

Also Published As

Publication number Publication date
EP1202253B1 (fr) 2005-04-20
DE50105947D1 (de) 2005-05-25
ATE293828T1 (de) 2005-05-15
EP1202253A2 (fr) 2002-05-02
JP2002198918A (ja) 2002-07-12
US20020064288A1 (en) 2002-05-30
US6842526B2 (en) 2005-01-11
DE10052626A1 (de) 2002-05-02

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