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AU2001225171A1 - System and method for dual microphone signal noise reduction using spectral subtraction - Google Patents

System and method for dual microphone signal noise reduction using spectral subtraction

Info

Publication number
AU2001225171A1
AU2001225171A1 AU2001225171A AU2517101A AU2001225171A1 AU 2001225171 A1 AU2001225171 A1 AU 2001225171A1 AU 2001225171 A AU2001225171 A AU 2001225171A AU 2517101 A AU2517101 A AU 2517101A AU 2001225171 A1 AU2001225171 A1 AU 2001225171A1
Authority
AU
Australia
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.)
Abandoned
Application number
AU2001225171A
Other languages
English (en)
Inventor
Ingvar Claesson
Harald Gustavsson
Ulf Lindgren
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
Publication of AU2001225171A1 publication Critical patent/AU2001225171A1/en
Abandoned legal-status Critical Current

Links

Classifications

    • 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

  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Circuit For Audible Band Transducer (AREA)
  • Noise Elimination (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
AU2001225171A 2000-01-28 2001-01-16 System and method for dual microphone signal noise reduction using spectral subtraction Abandoned AU2001225171A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US09/493,265 US6717991B1 (en) 1998-05-27 2000-01-28 System and method for dual microphone signal noise reduction using spectral subtraction
US09493265 2000-01-28
PCT/EP2001/000468 WO2001056328A1 (en) 2000-01-28 2001-01-16 System and method for dual microphone signal noise reduction using spectral subtraction

Publications (1)

Publication Number Publication Date
AU2001225171A1 true AU2001225171A1 (en) 2001-08-07

Family

ID=23959535

Family Applications (1)

Application Number Title Priority Date Filing Date
AU2001225171A Abandoned AU2001225171A1 (en) 2000-01-28 2001-01-16 System and method for dual microphone signal noise reduction using spectral subtraction

Country Status (8)

Country Link
US (1) US6717991B1 (zh)
EP (1) EP1252796B1 (zh)
CN (1) CN1193644C (zh)
AT (1) ATE245884T1 (zh)
AU (1) AU2001225171A1 (zh)
DE (1) DE60100502D1 (zh)
MY (1) MY124883A (zh)
WO (1) WO2001056328A1 (zh)

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Also Published As

Publication number Publication date
EP1252796A1 (en) 2002-10-30
WO2001056328A1 (en) 2001-08-02
DE60100502D1 (de) 2003-08-28
CN1193644C (zh) 2005-03-16
MY124883A (en) 2006-07-31
EP1252796B1 (en) 2003-07-23
CN1419794A (zh) 2003-05-21
ATE245884T1 (de) 2003-08-15
US6717991B1 (en) 2004-04-06

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