HK1047520B - 利用頻譜減除的雙拾音器信號降噪系統和方法 - Google Patents

利用頻譜減除的雙拾音器信號降噪系統和方法

Info

Publication number
HK1047520B
HK1047520B HK02109021.2A HK02109021A HK1047520B HK 1047520 B HK1047520 B HK 1047520B HK 02109021 A HK02109021 A HK 02109021A HK 1047520 B HK1047520 B HK 1047520B
Authority
HK
Hong Kong
Prior art keywords
spectral subtraction
mouth
microphone
noise
background noise
Prior art date
Application number
HK02109021.2A
Other languages
English (en)
Other versions
HK1047520A1 (en
Inventor
Gustafsson Harald
Claesson Ingvar
Nordholm Sven
Original Assignee
艾利森電話股份有限公司
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 艾利森電話股份有限公司 filed Critical 艾利森電話股份有限公司
Publication of HK1047520A1 publication Critical patent/HK1047520A1/xx
Publication of HK1047520B publication Critical patent/HK1047520B/zh

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)
HK02109021.2A 1999-04-12 2002-12-12 利用頻譜減除的雙拾音器信號降噪系統和方法 HK1047520B (zh)

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
HK1047520A1 HK1047520A1 (en) 2003-02-21
HK1047520B true HK1047520B (zh) 2005-06-24

Family

ID=23109892

Family Applications (1)

Application Number Title Priority Date Filing Date
HK02109021.2A HK1047520B (zh) 1999-04-12 2002-12-12 利用頻譜減除的雙拾音器信號降噪系統和方法

Country Status (12)

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

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Also Published As

Publication number Publication date
KR20020005674A (ko) 2002-01-17
CN1175709C (zh) 2004-11-10
US20010016020A1 (en) 2001-08-23
US6549586B2 (en) 2003-04-15
DE60001398T2 (de) 2003-09-04
BR0009740A (pt) 2002-01-08
MY123423A (en) 2006-05-31
CN1356014A (zh) 2002-06-26
WO2000062579A1 (en) 2000-10-19
HK1047520A1 (en) 2003-02-21
EP1169883A1 (en) 2002-01-09
JP2002542689A (ja) 2002-12-10
ATE232675T1 (de) 2003-02-15
AU4399900A (en) 2000-11-14
DE60001398D1 (de) 2003-03-20
EP1169883B1 (en) 2003-02-12

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Effective date: 20090411