JPS5679919A - Display unit for standard interval of generated tone - Google Patents
Display unit for standard interval of generated toneInfo
- Publication number
- JPS5679919A JPS5679919A JP15746579A JP15746579A JPS5679919A JP S5679919 A JPS5679919 A JP S5679919A JP 15746579 A JP15746579 A JP 15746579A JP 15746579 A JP15746579 A JP 15746579A JP S5679919 A JPS5679919 A JP S5679919A
- Authority
- JP
- Japan
- Prior art keywords
- interval
- sound
- detected
- band
- display unit
- 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
Abstract
PURPOSE: To make it possible for a speaker to confirm the interval of his or her generated voice visually by displaying the interval by lamps.
CONSTITUTION: A sound to be detected, applied to input terminal P1 via a microphone, is amplified to a constant value by preamplifier P and outputted to output terminal P0. This output passes through only one of band-pass filters F1WF5 that agrees with the frequency of the sound to be detected. Each filter is provided with eight filter elements differing successively in passing band and eight by five, i.e. forty outputs are applied to transposing converter S. Transposing converter S, consisting of conversion part S1 and change-over part S2, is changed over externally according to the music scale. In this constitution, the sound to be detected from preamplifier P passes through one of band-pass filters F1WF5 to drive driver transistor group T, which turns on corresponding display lamps in group PL to display a musical interval in standard interval display unit PD, thereby confirming it visually.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15746579A JPS5679919A (en) | 1979-12-06 | 1979-12-06 | Display unit for standard interval of generated tone |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15746579A JPS5679919A (en) | 1979-12-06 | 1979-12-06 | Display unit for standard interval of generated tone |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5679919A true JPS5679919A (en) | 1981-06-30 |
Family
ID=15650255
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP15746579A Pending JPS5679919A (en) | 1979-12-06 | 1979-12-06 | Display unit for standard interval of generated tone |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5679919A (en) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4995666A (en) * | 1972-10-20 | 1974-09-11 |
-
1979
- 1979-12-06 JP JP15746579A patent/JPS5679919A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4995666A (en) * | 1972-10-20 | 1974-09-11 |
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