KR900013458A - Tone generator of electronic instruments - Google Patents

Abstract

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Description

Tone generator of electronic instruments

Since this is an open matter, no full text was included.

3 is a block diagram of the present invention,

4 is a circuit diagram of an embodiment of the present invention;

5 is a tone waveform diagram stored in the waveform storage unit of the present invention.

Claims (1)

A clock generator that generates a reference clock, a waveform memory unit that is a storage device, an address generator that generates an address of stored data of the waveform memory unit, a read timing generator that determines a read point, and an output signal. In a tone generating apparatus of an electronic musical instrument which is associated with a D / A converting portion for converting an analog signal to generate a tone of an instrument, the waveform memory unit stores tone initial waveforms (A) and duration interval waveforms (B). And the waveform initial waveform A and the sustained period waveform B thereof through the D / A converters 15 and 15a and the voltage control amplifiers 16 and 16a, respectively. 17), integrating circuits 11 and 11a by control of the integrating circuit control unit 10 to change the tone voltage values to predetermined mixing ratios as the duration of time is supplied to the voltage control amplifiers 16 and 16a, respectively. Is characterized by its associated configuration Tone generating device to the instrument. ※ Note: The disclosure is based on the initial application.