JPS5679919A - Display unit for standard interval of generated tone - Google Patents

Display unit for standard interval of generated tone

Info

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
Application number
JP15746579A
Other languages
Japanese (ja)
Inventor
Makoto Kato
Tomoyuu Ookawa
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.)
Fuji Chemical Industries Co Ltd
Original Assignee
Fuji Chemical Industries 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 Fuji Chemical Industries Co Ltd filed Critical Fuji Chemical Industries Co Ltd
Priority to JP15746579A priority Critical patent/JPS5679919A/en
Publication of JPS5679919A publication Critical patent/JPS5679919A/en
Pending legal-status Critical Current

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
JP15746579A 1979-12-06 1979-12-06 Display unit for standard interval of generated tone Pending JPS5679919A (en)

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)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4995666A (en) * 1972-10-20 1974-09-11

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4995666A (en) * 1972-10-20 1974-09-11

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