JPS6473272A - Sound source locator - Google Patents

Sound source locator

Info

Publication number
JPS6473272A
JPS6473272A JP22946587A JP22946587A JPS6473272A JP S6473272 A JPS6473272 A JP S6473272A JP 22946587 A JP22946587 A JP 22946587A JP 22946587 A JP22946587 A JP 22946587A JP S6473272 A JPS6473272 A JP S6473272A
Authority
JP
Japan
Prior art keywords
sound
section
camera
sent
cross spectrum
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.)
Granted
Application number
JP22946587A
Other languages
Japanese (ja)
Other versions
JP2667404B2 (en
Inventor
Takuro Hayashi
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.)
Toshiba Corp
Original Assignee
Toshiba 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 Toshiba Corp filed Critical Toshiba Corp
Priority to JP62229465A priority Critical patent/JP2667404B2/en
Publication of JPS6473272A publication Critical patent/JPS6473272A/en
Application granted granted Critical
Publication of JP2667404B2 publication Critical patent/JP2667404B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
  • Testing Or Calibration Of Command Recording Devices (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
  • Closed-Circuit Television Systems (AREA)
  • Audible And Visible Signals (AREA)

Abstract

PURPOSE:To enable quick locating of an apparatus emitting an abnormal sound, by calculating the incoming direction of a sound with the measurement of the intensity of sound to turn a TV camera to the direction. CONSTITUTION:A signal of a sound detected by a sound detecting section made up of three microphones 1 is inputted into a Fourier transform section through an A/D converting section to be analyzed into a frequency spectrum. A cross spectrum is calculated by a cross spectrum computing section from an output thus Fourier transformed and an output thereof is sent to a direction detecting section. The direction detecting section calculates a 2-D intensity of sound based on the cross spectrum to determine the incoming direction of the sound. The results are sent to a display section to be shown while being sent to a drive section to turn a TV camera to the incoming direction of the sound. A video taken with the TV camera is shown on the display section.
JP62229465A 1987-09-16 1987-09-16 Sound source locator Expired - Lifetime JP2667404B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62229465A JP2667404B2 (en) 1987-09-16 1987-09-16 Sound source locator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62229465A JP2667404B2 (en) 1987-09-16 1987-09-16 Sound source locator

Publications (2)

Publication Number Publication Date
JPS6473272A true JPS6473272A (en) 1989-03-17
JP2667404B2 JP2667404B2 (en) 1997-10-27

Family

ID=16892623

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62229465A Expired - Lifetime JP2667404B2 (en) 1987-09-16 1987-09-16 Sound source locator

Country Status (1)

Country Link
JP (1) JP2667404B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10243494A (en) * 1997-03-03 1998-09-11 Nippon Telegr & Teleph Corp <Ntt> Face direction recognition method and apparatus
JP2003294822A (en) * 2002-01-31 2003-10-15 Shibaura Institute Of Technology Three-dimensional intensity probe, three-dimensional sound source direction detecting device using the same, three-dimensional sound source direction facing control device, three-dimensional intensity measurement method and device
GB2432990A (en) * 2005-12-02 2007-06-06 Bosch Gmbh Robert Direction-sensitive video surveillance

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI20165388A (en) * 2016-05-06 2017-11-07 Procemex Oy Ltd Acoustic analysis of a functional state of process machines

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58163883A (en) * 1982-03-19 1983-09-28 Toshiba Corp Monitoring apparatus
JPS5961721A (en) * 1982-10-01 1984-04-09 Bridgestone Corp Method and apparatus for searching sound source
JPS6123781U (en) * 1984-07-13 1986-02-12 三菱電機株式会社 On-site monitoring device

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58163883A (en) * 1982-03-19 1983-09-28 Toshiba Corp Monitoring apparatus
JPS5961721A (en) * 1982-10-01 1984-04-09 Bridgestone Corp Method and apparatus for searching sound source
JPS6123781U (en) * 1984-07-13 1986-02-12 三菱電機株式会社 On-site monitoring device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10243494A (en) * 1997-03-03 1998-09-11 Nippon Telegr & Teleph Corp <Ntt> Face direction recognition method and apparatus
JP2003294822A (en) * 2002-01-31 2003-10-15 Shibaura Institute Of Technology Three-dimensional intensity probe, three-dimensional sound source direction detecting device using the same, three-dimensional sound source direction facing control device, three-dimensional intensity measurement method and device
GB2432990A (en) * 2005-12-02 2007-06-06 Bosch Gmbh Robert Direction-sensitive video surveillance

Also Published As

Publication number Publication date
JP2667404B2 (en) 1997-10-27

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