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DE69907967D1 - Geräuschunterdrückung in einem mobil-kommunikationssystem - Google Patents

Geräuschunterdrückung in einem mobil-kommunikationssystem

Info

Publication number
DE69907967D1
DE69907967D1 DE69907967T DE69907967T DE69907967D1 DE 69907967 D1 DE69907967 D1 DE 69907967D1 DE 69907967 T DE69907967 T DE 69907967T DE 69907967 T DE69907967 T DE 69907967T DE 69907967 D1 DE69907967 D1 DE 69907967D1
Authority
DE
Germany
Prior art keywords
noise
samples
bumblebee
communication system
mobile communication
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.)
Expired - Lifetime
Application number
DE69907967T
Other languages
English (en)
Other versions
DE69907967T2 (de
Inventor
Hans Cavander
Per Ljungberg
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.)
Telefonaktiebolaget LM Ericsson AB
Original Assignee
Telefonaktiebolaget LM Ericsson AB
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 Telefonaktiebolaget LM Ericsson AB filed Critical Telefonaktiebolaget LM Ericsson AB
Publication of DE69907967D1 publication Critical patent/DE69907967D1/de
Application granted granted Critical
Publication of DE69907967T2 publication Critical patent/DE69907967T2/de
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
    • G10L21/0216—Noise filtering characterised by the method used for estimating noise
    • G10L21/0232—Processing in the frequency domain
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/06—Receivers
    • H04B1/10—Means associated with receiver for limiting or suppressing noise or interference
    • 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
    • G10L2021/02085—Periodic noise
    • 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
    • G10L21/0216—Noise filtering characterised by the method used for estimating noise
    • G10L2021/02168—Noise filtering characterised by the method used for estimating noise the estimation exclusively taking place during speech pauses

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Human Computer Interaction (AREA)
  • Quality & Reliability (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Computational Linguistics (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Noise Elimination (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
DE69907967T 1998-12-18 1999-12-03 Geräuschunterdrückung in einem mobil-kommunikationssystem Expired - Lifetime DE69907967T2 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US21535598A 1998-12-18 1998-12-18
US215355 1998-12-18
PCT/SE1999/002258 WO2000038180A1 (en) 1998-12-18 1999-12-03 Noise suppression in a mobile communications system

Publications (2)

Publication Number Publication Date
DE69907967D1 true DE69907967D1 (de) 2003-06-18
DE69907967T2 DE69907967T2 (de) 2004-03-11

Family

ID=22802657

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69907967T Expired - Lifetime DE69907967T2 (de) 1998-12-18 1999-12-03 Geräuschunterdrückung in einem mobil-kommunikationssystem

Country Status (7)

Country Link
EP (1) EP1141950B1 (de)
JP (1) JP2002533964A (de)
CN (1) CN1192359C (de)
AT (1) ATE240576T1 (de)
AU (1) AU3087900A (de)
DE (1) DE69907967T2 (de)
WO (1) WO2000038180A1 (de)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020123308A1 (en) * 2001-01-09 2002-09-05 Feltstrom Alberto Jimenez Suppression of periodic interference in a communications system
GB2375027B (en) * 2001-04-24 2003-05-28 Motorola Inc Processing speech signals
US7289626B2 (en) * 2001-05-07 2007-10-30 Siemens Communications, Inc. Enhancement of sound quality for computer telephony systems
GB2381978B (en) * 2001-11-12 2005-09-21 Thales Res Ltd Signal processing method and apparatus
GB0202386D0 (en) * 2002-02-01 2002-03-20 Cedar Audio Ltd Method and apparatus for audio signal processing
NO324318B1 (no) * 2005-04-29 2007-09-24 Tandberg Telecom As Fremgangsmate og anordning for stoydeteksjon.
WO2007139543A1 (en) * 2006-05-31 2007-12-06 Agere Systems Inc. Noise reduction by mobile communication devices in non-call situations
WO2009140792A1 (zh) * 2008-05-21 2009-11-26 Lin Han 降低音频干扰的方法及其装置
EP2242185A1 (de) * 2009-04-15 2010-10-20 ST-NXP Wireless France Rauschunterdrückung
US10269369B2 (en) 2017-05-31 2019-04-23 Apple Inc. System and method of noise reduction for a mobile device

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE505156C2 (sv) * 1995-01-30 1997-07-07 Ericsson Telefon Ab L M Förfarande för bullerundertryckning genom spektral subtraktion
US5903819A (en) * 1996-03-13 1999-05-11 Ericsson Inc. Noise suppressor circuit and associated method for suppressing periodic interference component portions of a communication signal
FI962965A7 (fi) * 1996-07-25 1998-01-26 Paavo Alku Menetelmä ja laite impulssikohinan poistamiseksi puhesignaalista

Also Published As

Publication number Publication date
CN1192359C (zh) 2005-03-09
CN1330790A (zh) 2002-01-09
AU3087900A (en) 2000-07-12
WO2000038180A1 (en) 2000-06-29
EP1141950A1 (de) 2001-10-10
DE69907967T2 (de) 2004-03-11
EP1141950B1 (de) 2003-05-14
JP2002533964A (ja) 2002-10-08
ATE240576T1 (de) 2003-05-15

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