DE60001398T2 - System und verfahren zur rauschverminderung im mikrofonpaarsignal mittels spektraler subtraktion - Google Patents

System und verfahren zur rauschverminderung im mikrofonpaarsignal mittels spektraler subtraktion

Info

Publication number
DE60001398T2
DE60001398T2 DE60001398T DE60001398T DE60001398T2 DE 60001398 T2 DE60001398 T2 DE 60001398T2 DE 60001398 T DE60001398 T DE 60001398T DE 60001398 T DE60001398 T DE 60001398T DE 60001398 T2 DE60001398 T2 DE 60001398T2
Authority
DE
Germany
Prior art keywords
spectral subtraction
mouth
microphone
noise
background noise
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 - Fee Related
Application number
DE60001398T
Other languages
English (en)
Other versions
DE60001398D1 (de
Inventor
Harald Gustafsson
Ingvar Claesson
Sven Nordholm
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
Application granted granted Critical
Publication of DE60001398D1 publication Critical patent/DE60001398D1/de
Publication of DE60001398T2 publication Critical patent/DE60001398T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R3/00—Circuits for transducers, loudspeakers or microphones
    • H04R3/005—Circuits for transducers, loudspeakers or microphones for combining the signals of two or more microphones

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Circuit For Audible Band Transducer (AREA)
  • Noise Elimination (AREA)
DE60001398T 1999-04-12 2000-04-11 System und verfahren zur rauschverminderung im mikrofonpaarsignal mittels spektraler subtraktion Expired - Fee Related DE60001398T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/289,065 US6549586B2 (en) 1999-04-12 1999-04-12 System and method for dual microphone signal noise reduction using spectral subtraction
PCT/EP2000/003223 WO2000062579A1 (en) 1999-04-12 2000-04-11 System and method for dual microphone signal noise reduction using spectral subtraction

Publications (2)

Publication Number Publication Date
DE60001398D1 DE60001398D1 (de) 2003-03-20
DE60001398T2 true DE60001398T2 (de) 2003-09-04

Family

ID=23109892

Family Applications (1)

Application Number Title Priority Date Filing Date
DE60001398T Expired - Fee Related DE60001398T2 (de) 1999-04-12 2000-04-11 System und verfahren zur rauschverminderung im mikrofonpaarsignal mittels spektraler subtraktion

Country Status (12)

Country Link
US (1) US6549586B2 (de)
EP (1) EP1169883B1 (de)
JP (1) JP2002542689A (de)
KR (1) KR20020005674A (de)
CN (1) CN1175709C (de)
AT (1) ATE232675T1 (de)
AU (1) AU4399900A (de)
BR (1) BR0009740A (de)
DE (1) DE60001398T2 (de)
HK (1) HK1047520B (de)
MY (1) MY123423A (de)
WO (1) WO2000062579A1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004017486A1 (de) * 2004-04-08 2005-10-27 Siemens Ag Verfahren zur Geräuschreduktion bei einem Sprach-Eingangssignal

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Also Published As

Publication number Publication date
CN1175709C (zh) 2004-11-10
EP1169883B1 (de) 2003-02-12
CN1356014A (zh) 2002-06-26
ATE232675T1 (de) 2003-02-15
US6549586B2 (en) 2003-04-15
WO2000062579A1 (en) 2000-10-19
BR0009740A (pt) 2002-01-08
HK1047520B (zh) 2005-06-24
HK1047520A1 (en) 2003-02-21
KR20020005674A (ko) 2002-01-17
EP1169883A1 (de) 2002-01-09
DE60001398D1 (de) 2003-03-20
JP2002542689A (ja) 2002-12-10
AU4399900A (en) 2000-11-14
US20010016020A1 (en) 2001-08-23
MY123423A (en) 2006-05-31

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