JPS5597800A - Speaker characteristic measuring unit - Google Patents
Speaker characteristic measuring unitInfo
- 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
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; 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.
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)
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 | Frequency characteristic measuring instrument for speaker |
JPH05344596A (en) * | 1992-06-05 | 1993-12-24 | Mitsubishi Electric Corp | Acoustic 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)
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 |
-
1979
- 1979-01-20 JP JP499379A patent/JPS6031400B2/en not_active Expired
Cited By (8)
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 | Frequency characteristic measuring instrument for speaker |
JPH05344596A (en) * | 1992-06-05 | 1993-12-24 | Mitsubishi Electric Corp | Acoustic 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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