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WO2009044509A1 - 音源方向検知装置 - Google Patents

音源方向検知装置 Download PDF

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Publication number
WO2009044509A1
WO2009044509A1 PCT/JP2008/002497 JP2008002497W WO2009044509A1 WO 2009044509 A1 WO2009044509 A1 WO 2009044509A1 JP 2008002497 W JP2008002497 W JP 2008002497W WO 2009044509 A1 WO2009044509 A1 WO 2009044509A1
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WO
WIPO (PCT)
Prior art keywords
source direction
sound
microphones
frequency spectrum
sound source
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.)
Ceased
Application number
PCT/JP2008/002497
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English (en)
French (fr)
Inventor
Shinichi Yoshizawa
Yoshihisa Nakatoh
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.)
Panasonic Corp
Original Assignee
Panasonic Corp
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 Panasonic Corp filed Critical Panasonic Corp
Priority to CN2008800040590A priority Critical patent/CN101617245B/zh
Priority to US12/446,499 priority patent/US8155346B2/en
Priority to EP08836403A priority patent/EP2202531A4/en
Priority to JP2008556982A priority patent/JP4339929B2/ja
Publication of WO2009044509A1 publication Critical patent/WO2009044509A1/ja
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S3/00—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received
    • G01S3/80—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received using ultrasonic, sonic or infrasonic waves
    • G01S3/802—Systems for determining direction or deviation from predetermined direction
    • G01S3/808—Systems for determining direction or deviation from predetermined direction using transducers spaced apart and measuring phase or time difference between signals therefrom, i.e. path-difference systems
    • G01S3/8083—Systems for determining direction or deviation from predetermined direction using transducers spaced apart and measuring phase or time difference between signals therefrom, i.e. path-difference systems determining direction of source

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
  • Circuit For Audible Band Transducer (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)

Abstract

　互いに離間して配置された２つ以上のマイクロホンにて集音された音響信号の各々について、当該音響信号の少なくとも１つの周波数帯域における周波数スペクトルを生成するＦＦＴ分析部（１０３（１）～１０３（３））と、前記周波数帯域における周波数スペクトルから、音源方向を求める検知音の周波数スペクトルの時刻部分を特定する検知音特定部（１０４（１）～１０４（３））と、音源方向を検知する時間単位である時間区間の中で、前記検知音特定部（１０４（１）～１０４（３））が特定した時刻部分における周波数スペクトルの前記マイクロホン間での一致度合いにより、前記検知音が前記マイクロホンに到達する時間差を求めて、前記時間差と前記マイクロホンの距離と音速とから音源方向を求めて出力する方向検知部（１０５）とを備える。
PCT/JP2008/002497 2007-10-01 2008-09-10 音源方向検知装置 Ceased WO2009044509A1 (ja)

Priority Applications (4)

Application Number Priority Date Filing Date Title
CN2008800040590A CN101617245B (zh) 2007-10-01 2008-09-10 声源方向检测装置
US12/446,499 US8155346B2 (en) 2007-10-01 2008-09-10 Audio source direction detecting device
EP08836403A EP2202531A4 (en) 2007-10-01 2008-09-10 DETECTOR FOR SOUND SOUND ALIGNMENT
JP2008556982A JP4339929B2 (ja) 2007-10-01 2008-09-10 音源方向検知装置

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007-258084 2007-10-01
JP2007258084 2007-10-01

Publications (1)

Publication Number Publication Date
WO2009044509A1 true WO2009044509A1 (ja) 2009-04-09

Family

ID=40525942

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2008/002497 Ceased WO2009044509A1 (ja) 2007-10-01 2008-09-10 音源方向検知装置

Country Status (5)

Country Link
US (1) US8155346B2 (ja)
EP (1) EP2202531A4 (ja)
JP (1) JP4339929B2 (ja)
CN (1) CN101617245B (ja)
WO (1) WO2009044509A1 (ja)

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CN106514676A (zh) * 2017-01-09 2017-03-22 广东大仓机器人科技有限公司 采用四个声音接收器确定声源方位的机器人
WO2022088436A1 (zh) * 2020-10-28 2022-05-05 苏州触达信息技术有限公司 一种水中人员的定位方法和装置

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US20100303254A1 (en) 2010-12-02
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US8155346B2 (en) 2012-04-10
EP2202531A4 (en) 2012-12-26
JP4339929B2 (ja) 2009-10-07
CN101617245A (zh) 2009-12-30

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