JPS57182131A - Device to set sound receiving point for speaker - Google Patents

Device to set sound receiving point for speaker

Info

Publication number
JPS57182131A
JPS57182131A JP6722881A JP6722881A JPS57182131A JP S57182131 A JPS57182131 A JP S57182131A JP 6722881 A JP6722881 A JP 6722881A JP 6722881 A JP6722881 A JP 6722881A JP S57182131 A JPS57182131 A JP S57182131A
Authority
JP
Japan
Prior art keywords
reference point
speaker
microphones
vertical line
stand
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.)
Pending
Application number
JP6722881A
Other languages
Japanese (ja)
Inventor
Toru Hayase
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.)
Sharp Corp
Original Assignee
Sharp 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 Sharp Corp filed Critical Sharp Corp
Priority to JP6722881A priority Critical patent/JPS57182131A/en
Publication of JPS57182131A publication Critical patent/JPS57182131A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
    • G01H3/00—Measuring characteristics of vibrations by using a detector in a fluid
    • G01H3/005—Testing or calibrating of detectors covered by the subgroups of G01H3/00

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
  • Details Of Audible-Bandwidth Transducers (AREA)

Abstract

PURPOSE:To provide simple construction and easiness of operation by setting upright a microphone stand provided with a plurality of microphones on the free ends of rotating arms that have their center on a vertical line that passes the reference point of a speaker and are made rotatable in planes perpendicular to the vertical line and attached to the stand. CONSTITUTION:A rotating arm 2 is provided so that its one end 10 as a center of rotation coincides with a vertical line 8 that passes the reference point 9 in front of a speaker means 1, and at the free end 11 of the rotating arm2, a stand 13 that is provided with a plurality of microphones 14 is set upright. Further, the rotating arm 2 ca be adjusted in its length by means of an adjusting fitting 12. All the microphones 14 are installed with the distances between the reference point 9 and their ends equal, facing the reference point 9. With this arrangement acoustic characteristics of all points on imaginary spherical planes or arbitrary points can be measured.
JP6722881A 1981-05-01 1981-05-01 Device to set sound receiving point for speaker Pending JPS57182131A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6722881A JPS57182131A (en) 1981-05-01 1981-05-01 Device to set sound receiving point for speaker

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6722881A JPS57182131A (en) 1981-05-01 1981-05-01 Device to set sound receiving point for speaker

Publications (1)

Publication Number Publication Date
JPS57182131A true JPS57182131A (en) 1982-11-09

Family

ID=13338840

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6722881A Pending JPS57182131A (en) 1981-05-01 1981-05-01 Device to set sound receiving point for speaker

Country Status (1)

Country Link
JP (1) JPS57182131A (en)

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