JPS54146626A - Electronic musical instrument - Google Patents

Electronic musical instrument

Info

Publication number
JPS54146626A
JPS54146626A JP5403578A JP5403578A JPS54146626A JP S54146626 A JPS54146626 A JP S54146626A JP 5403578 A JP5403578 A JP 5403578A JP 5403578 A JP5403578 A JP 5403578A JP S54146626 A JPS54146626 A JP S54146626A
Authority
JP
Japan
Prior art keywords
signal
circuit
voltage
sound source
envelope
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
JP5403578A
Other languages
Japanese (ja)
Other versions
JPS5836917B2 (en
Inventor
Noriyoshi Watanabe
Wataru Torihashi
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.)
Victor Company of Japan Ltd
Original Assignee
Victor Company of Japan 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 Victor Company of Japan Ltd filed Critical Victor Company of Japan Ltd
Priority to JP53054035A priority Critical patent/JPS5836917B2/en
Publication of JPS54146626A publication Critical patent/JPS54146626A/en
Publication of JPS5836917B2 publication Critical patent/JPS5836917B2/en
Expired legal-status Critical Current

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  • Electrophonic Musical Instruments (AREA)

Abstract

PURPOSE: To obtain the so-called slow-attack effect by the simple composition of a circuit, by directly operating a sound source signal keying circuit by the output voltage of a wave-from forming circuit.
CONSTITUTION: When a signal e is fed to a terminal 8a of a wave-form forming circuit 8, a trnsistor Tr Q is in ON and a condenser C discharges, and the electric potential of a collector lowers to voltage V decided by means of a resistance R' connected to an emitter from the maximum value of key voltage by means of a power source Vcc, discharges ina time constant by a resistance R and the comdenser C and is changed into a signal f. The signal f is fed to an OR circuit 5 as key voltage through a switch K1 made while being supplied to a sound source signal keying circuit 21, and a conduction condition of a Tr constituting the circuit 21 is controlled in response to the magnitude of an envelope of the signal f. Thus, a signal with frequency corresponding to a sound selected by means of the switch K1 from a sound source signal circuit 31 is extracted as a signal g in response to the envelope of the signal f, and the mean value is detected by means of a condenser C0 and put out from a terminal 7 after it is converted into a slow-atack signal h.
COPYRIGHT: (C)1979,JPO&Japio
JP53054035A 1978-05-09 1978-05-09 electronic musical instruments Expired JPS5836917B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP53054035A JPS5836917B2 (en) 1978-05-09 1978-05-09 electronic musical instruments

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP53054035A JPS5836917B2 (en) 1978-05-09 1978-05-09 electronic musical instruments

Publications (2)

Publication Number Publication Date
JPS54146626A true JPS54146626A (en) 1979-11-16
JPS5836917B2 JPS5836917B2 (en) 1983-08-12

Family

ID=12959322

Family Applications (1)

Application Number Title Priority Date Filing Date
JP53054035A Expired JPS5836917B2 (en) 1978-05-09 1978-05-09 electronic musical instruments

Country Status (1)

Country Link
JP (1) JPS5836917B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0553816U (en) * 1991-12-28 1993-07-20 豊本 博充 Fluid pressure chuck

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0553816U (en) * 1991-12-28 1993-07-20 豊本 博充 Fluid pressure chuck

Also Published As

Publication number Publication date
JPS5836917B2 (en) 1983-08-12

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