JPS5597800A - Speaker characteristic measuring unit - Google Patents

Speaker characteristic measuring unit

Info

Publication number
JPS5597800A
JPS5597800A JP499379A JP499379A JPS5597800A JP S5597800 A JPS5597800 A JP S5597800A JP 499379 A JP499379 A JP 499379A JP 499379 A JP499379 A JP 499379A JP S5597800 A JPS5597800 A JP S5597800A
Authority
JP
Japan
Prior art keywords
sampling
circuit
sweep speed
speaker
data
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
JP499379A
Other languages
Japanese (ja)
Other versions
JPS6031400B2 (en
Inventor
Terumichi Fukumoto
Yasuo Yamataka
Katsutoshi Iwahara
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 Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP499379A priority Critical patent/JPS6031400B2/en
Publication of JPS5597800A publication Critical patent/JPS5597800A/en
Publication of JPS6031400B2 publication Critical patent/JPS6031400B2/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R29/00—Monitoring arrangements; Testing arrangements

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)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)

Abstract

PURPOSE:To make it possible to measure characteristic efficiently in a short time by varying the frequency sweep speed and the data sampling time interval according to the frequency characteristic of a measured speaker. CONSTITUTION:The signal of oscillator 1 to change the frequency sweep speed on a basis of control data from control circuit 8 is amplified by amplifier 2 and is inputted to measured speaker 4 in characteristic measuring box body 3, and the output is caused to pass through microphone 5 and is amplified by amplifier 6 and is inputted to acoustic pressure data sampling circuit 7. Meanwhile, sampling circuit 7 samples and holds acoustic pressure data by sampling signal S from control circuit 8. On a basis of control data of the sweep speed of osicllator 1 and sampling signal S set in memory circuit 9, the sweep speed of oscillator 1 and the sampling time interval of sampling circuit 7 are controlled by control circuit 8, and control data is held in memory circuit 9. Thus, the speaker characterristic can be measured efficiently in a short time.
JP499379A 1979-01-20 1979-01-20 Speaker characteristics measuring device Expired JPS6031400B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP499379A JPS6031400B2 (en) 1979-01-20 1979-01-20 Speaker characteristics measuring device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP499379A JPS6031400B2 (en) 1979-01-20 1979-01-20 Speaker characteristics measuring device

Publications (2)

Publication Number Publication Date
JPS5597800A true JPS5597800A (en) 1980-07-25
JPS6031400B2 JPS6031400B2 (en) 1985-07-22

Family

ID=11599121

Family Applications (1)

Application Number Title Priority Date Filing Date
JP499379A Expired JPS6031400B2 (en) 1979-01-20 1979-01-20 Speaker characteristics measuring device

Country Status (1)

Country Link
JP (1) JPS6031400B2 (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59146779U (en) * 1983-03-23 1984-10-01 フオスタ−電機株式会社 Signal generator for testing sounding body
JPS63120266A (en) * 1986-11-08 1988-05-24 Semiconductor Res Found Method for measuring physical quantity
JPS63133799U (en) * 1987-02-24 1988-09-01
JPH01151400A (en) * 1987-12-08 1989-06-14 Matsushita Electric Ind Co Ltd Method and device for measuring harmonic distortion of speaker
JPH02109500A (en) * 1988-10-18 1990-04-23 Onkyo Corp Speaker frequency characteristic measurement device
JPH05344596A (en) * 1992-06-05 1993-12-24 Mitsubishi Electric Corp Audio equipment
WO2020158195A1 (en) * 2019-01-28 2020-08-06 株式会社Ｊｖｃケンウッド Speaker minimum resonance frequency measurement device, speaker system, and speaker minimum resonance frequency measurement method

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6184233B2 (en) * 2013-08-02 2017-08-23 株式会社ブリヂストン Aircraft tire

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59146779U (en) * 1983-03-23 1984-10-01 フオスタ−電機株式会社 Signal generator for testing sounding body
JPS63120266A (en) * 1986-11-08 1988-05-24 Semiconductor Res Found Method for measuring physical quantity
JPS63133799U (en) * 1987-02-24 1988-09-01
JPH01151400A (en) * 1987-12-08 1989-06-14 Matsushita Electric Ind Co Ltd Method and device for measuring harmonic distortion of speaker
JPH02109500A (en) * 1988-10-18 1990-04-23 Onkyo Corp Speaker frequency characteristic measurement device
JPH05344596A (en) * 1992-06-05 1993-12-24 Mitsubishi Electric Corp Audio equipment
WO2020158195A1 (en) * 2019-01-28 2020-08-06 株式会社Ｊｖｃケンウッド Speaker minimum resonance frequency measurement device, speaker system, and speaker minimum resonance frequency measurement method
JPWO2020158195A1 (en) * 2019-01-28 2021-09-30 株式会社Ｊｖｃケンウッド Speaker minimum resonance frequency measuring device, speaker system, and speaker minimum resonance frequency measuring method

Also Published As

Publication number Publication date
JPS6031400B2 (en) 1985-07-22

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