JPS6459392A - Musical sound generation circuit - Google Patents

Musical sound generation circuit

Info

Publication number
JPS6459392A
JPS6459392A JP62217554A JP21755487A JPS6459392A JP S6459392 A JPS6459392 A JP S6459392A JP 62217554 A JP62217554 A JP 62217554A JP 21755487 A JP21755487 A JP 21755487A JP S6459392 A JPS6459392 A JP S6459392A
Authority
JP
Japan
Prior art keywords
converter
waveform
musical sound
conversion
waveform generation
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
JP62217554A
Other languages
Japanese (ja)
Inventor
Yuichi Matsuzaki
Yasushige Furuya
Yoshiyuki Terajima
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.)
Seiko Epson Corp
Hudson Soft Co Ltd
Original Assignee
Seiko Epson Corp
Hudson Soft 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 Seiko Epson Corp, Hudson Soft Co Ltd filed Critical Seiko Epson Corp
Priority to JP62217554A priority Critical patent/JPS6459392A/en
Publication of JPS6459392A publication Critical patent/JPS6459392A/en
Pending legal-status Critical Current

Links

Landscapes

  • Electrophonic Musical Instruments (AREA)

Abstract

PURPOSE: To generate a musical sound signal without requiring a complicated arithmetic circuit and its control circuit by introducing two D/A converters. CONSTITUTION: An amplitude value memory 1 is connected to a D/A converter (1st D/A converter) 6 for amplitude control and data of the amplitude value memory 1 are sent to the amplitude control D/A converter 6, which performs D/A conversion. When its output voltage is supplied as the reference voltage of a D/A converter (2nd D/A converter) 7 for waveform generation, the D/A converter 7 for waveform generation performs D/A conversion between a GND voltage and two reference voltages. Therefore, a waveform is generated by sending data of one cycle of the waveform to the D/A converter for waveform generation so that the value after the D/A conversion becomes equal to a desired waveform in time series. Consequently, a digital musical sound generator is obtained which is capable of output up to a high frequency range with the simple circuit.
JP62217554A 1987-08-31 1987-08-31 Musical sound generation circuit Pending JPS6459392A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62217554A JPS6459392A (en) 1987-08-31 1987-08-31 Musical sound generation circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62217554A JPS6459392A (en) 1987-08-31 1987-08-31 Musical sound generation circuit

Publications (1)

Publication Number Publication Date
JPS6459392A true JPS6459392A (en) 1989-03-07

Family

ID=16706079

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62217554A Pending JPS6459392A (en) 1987-08-31 1987-08-31 Musical sound generation circuit

Country Status (1)

Country Link
JP (1) JPS6459392A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6041999B2 (en) * 1978-10-23 1985-09-19 三菱電機株式会社 Wastewater purification method

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6041999B2 (en) * 1978-10-23 1985-09-19 三菱電機株式会社 Wastewater purification method

Similar Documents

Publication Publication Date Title
JPS5757025A (en) Waveform converting circuit
JPS52102710A (en) Functional wave generator for electronic instrument
EP0601201A4 (en) Waveform a/d converter and d/a converter.
EP0377459A3 (en) Electronic musical instrument having plural different tone generators
GB2308248A (en) Waveform-generating apparatus
TW325608B (en) Timing signal generation circuit and a display device using such a circuit
JPS5480114A (en) Electronic musical instrument
JPS6459392A (en) Musical sound generation circuit
JPS6473397A (en) Strain generator
KR970055364A (en) Digitally Controlled Multi-Frequency Generator
JPS5642403A (en) Digital periodic waveform generator
JPS6467022A (en) Digital noise generator
JPS56140402A (en) Operating device
JPS6466696A (en) Musical sound generator
WO2003085415A3 (en) Return to zero and sampling pulse generating circuits and method for direct digital up conversion
JPS5689165A (en) Intermittent ringing tone generation system
JPS6437124A (en) Pulse width modulating signal generator
ES8401633A1 (en) Ultrasonic transmitter.
JPS5513526A (en) Signal converter
KR0152344B1 (en) Pwm signal generating circuit
JPS5512929A (en) Charging voltage notifying device for electronic flashing equipment
JPS5577209A (en) Signal generating circuit
FR2358785A1 (en) AD converter input signal - is converted into difference current signal and several residual difference current signals (NL 17.1.78)
JPS54109402A (en) Sound image locating signal converter
JPS5553922A (en) Sampling system for analog signal formed with repetitive waveform