JPS54109886A - Tuning device - Google Patents

Tuning device

Info

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
Application number
JP1732478A
Other languages
Japanese (ja)
Other versions
JPS6115364B2 (en
Inventor
Mitsuru Baba
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.)
Nippon Gakki Co Ltd
Original Assignee
Nippon Gakki 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 Nippon Gakki Co Ltd filed Critical Nippon Gakki Co Ltd
Priority to JP1732478A priority Critical patent/JPS54109886A/en
Priority to US06/009,950 priority patent/US4312044A/en
Publication of JPS54109886A publication Critical patent/JPS54109886A/en
Publication of JPS6115364B2 publication Critical patent/JPS6115364B2/ja
Granted legal-status Critical Current

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
JP1732478A 1978-02-17 1978-02-17 Tuning device Granted JPS54109886A (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (5)

* Cited by examiner, † Cited by third party
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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