Sound generating device for outputting sound signals having a so

Details Sound generating device for outputting sound signals having a so Sound generating device for outputting sound signals having a so

1991-08-13

1993-01-12

Witkowski, Stanley J.

Music

Instruments

Electrical musical tone generation

84627, 84633, 84DIG12, G10H 1057, G10H 142, G10H 146

Patent

active

051792397

ABSTRACT:
A sound generating device for generating a variety of sounds has a main control circuit which includes a ROM for storing melody data. A sound source is coupled to the control circuit in accordance with sound scale data stored in the ROM. The sound source has a waveform memory for storing a sound waveform in a digital form. The sound waveform memory is read at a frequency corresponding to the sound scale data. An envelope waveform memory stores an envelope waveform in a digital form. A digital to analog conversion circuit converts the digital envelope waveform in accordance with the digital sound waveform to produce an analog voltage.

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patent: 4526080 (1985-07-01), Amano
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patent: 4682526 (1987-07-01), Hall et al.
patent: 4713996 (1987-12-01), Oguri
patent: 4815352 (1989-03-01), Tsukamoto et al.

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