JPS51147365A - Instruction device for tuning musical instrument - Google Patents
Instruction device for tuning musical instrumentInfo
- Publication number
- JPS51147365A JPS51147365A JP50071488A JP7148875A JPS51147365A JP S51147365 A JPS51147365 A JP S51147365A JP 50071488 A JP50071488 A JP 50071488A JP 7148875 A JP7148875 A JP 7148875A JP S51147365 A JPS51147365 A JP S51147365A
- Authority
- JP
- Japan
- Prior art keywords
- musical instrument
- series
- instruction device
- difference
- tuning musical
- 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
Links
Landscapes
- Auxiliary Devices For Music (AREA)
- Measuring Frequencies, Analyzing Spectra (AREA)
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
Abstract
PURPOSE: Depending upon a theory that frequency variation in a small scope of the musical scale to be a geometical series having a predetermined geometrical ratio can be closely approximated with a geometirical series having as a geometrical difference the standardized frequency difference of a very small unit used in the field, the number of waves of a standard signal corresponding included in one or over two periods of tuned tone signal is counted and is compared with a reference value, to digitally follow and display the untuning rate of the measured, tuned tone.
COPYRIGHT: (C)1976,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP50071488A JPS51147365A (en) | 1975-06-13 | 1975-06-13 | Instruction device for tuning musical instrument |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP50071488A JPS51147365A (en) | 1975-06-13 | 1975-06-13 | Instruction device for tuning musical instrument |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS51147365A true JPS51147365A (en) | 1976-12-17 |
Family
ID=13462080
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP50071488A Pending JPS51147365A (en) | 1975-06-13 | 1975-06-13 | Instruction device for tuning musical instrument |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS51147365A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5370884A (en) * | 1976-12-07 | 1978-06-23 | Nippon Columbia | Signal producing device |
-
1975
- 1975-06-13 JP JP50071488A patent/JPS51147365A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5370884A (en) * | 1976-12-07 | 1978-06-23 | Nippon Columbia | Signal producing device |
JPS5757972B2 (en) * | 1976-12-07 | 1982-12-07 | Nippon Columbia |
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