JPS54109886A - Tuning device - Google Patents
Tuning deviceInfo
- Publication number
- JPS54109886A JPS54109886A JP1732478A JP1732478A JPS54109886A JP S54109886 A JPS54109886 A JP S54109886A JP 1732478 A JP1732478 A JP 1732478A JP 1732478 A JP1732478 A JP 1732478A JP S54109886 A JPS54109886 A JP S54109886A
- Authority
- JP
- Japan
- Prior art keywords
- frequency
- deviation
- sound
- reference sound
- counter
- 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
Landscapes
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
- Auxiliary Devices For Music (AREA)
- Measuring Frequencies, Analyzing Spectra (AREA)
Abstract
PURPOSE: To prevent fluctuations of display due to frequency fluctuations, by averaging and displaying the momentary deviation of the frequency of the sound to be measured from the reference sound frequency.
CONSTITUTION: The deviation of frequency of the open sound of the fifth string of a guitar from the reference sound frequency of 110 Hz customarily used in guitar tuning is measured. For instance, the number of 32768 Hz constant frequency clock pulses within one period of the 110 Hz reference sound frequency is counted, and the deviation is displayed on the basis of this counting. Hence, a counter 18 to count the number of 32768 Hz clock pulses is provided, and the mementary deviation data obtained from the counting output of this counter 18 is averaged in circuits 20, 22, 24 provided in the front stage of a display device 26, and the obtained average deviation data is visibly displayed 26.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1732478A JPS54109886A (en) | 1978-02-17 | 1978-02-17 | Tuning device |
US06/009,950 US4312044A (en) | 1978-02-17 | 1979-02-06 | Tuning apparatus |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1732478A JPS54109886A (en) | 1978-02-17 | 1978-02-17 | Tuning device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS54109886A true JPS54109886A (en) | 1979-08-28 |
JPS6115364B2 JPS6115364B2 (en) | 1986-04-23 |
Family
ID=11940850
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1732478A Granted JPS54109886A (en) | 1978-02-17 | 1978-02-17 | Tuning device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54109886A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5640894A (en) * | 1979-09-11 | 1981-04-17 | Takeshi Hatano | Tuning device for keyboard instruments |
JPS5793993U (en) * | 1980-11-28 | 1982-06-09 | ||
JPS57124775U (en) * | 1981-01-27 | 1982-08-03 | ||
JPS57160026A (en) * | 1981-03-27 | 1982-10-02 | Seiko Instr & Electronics Ltd | Tuning device |
US4354418A (en) * | 1980-08-25 | 1982-10-19 | Nuvatec, Inc. | Automatic note analyzer |
-
1978
- 1978-02-17 JP JP1732478A patent/JPS54109886A/en active Granted
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5640894A (en) * | 1979-09-11 | 1981-04-17 | Takeshi Hatano | Tuning device for keyboard instruments |
US4354418A (en) * | 1980-08-25 | 1982-10-19 | Nuvatec, Inc. | Automatic note analyzer |
JPS5793993U (en) * | 1980-11-28 | 1982-06-09 | ||
JPS57124775U (en) * | 1981-01-27 | 1982-08-03 | ||
JPS57160026A (en) * | 1981-03-27 | 1982-10-02 | Seiko Instr & Electronics Ltd | Tuning device |
Also Published As
Publication number | Publication date |
---|---|
JPS6115364B2 (en) | 1986-04-23 |
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