Tone generator

Details Tone generator Tone generator

1983-12-14

1985-06-11

Witkowski, Stanley J.

Music

Instruments

84 128, 84DIG11, G10H 700

Patent

active

045220999

ABSTRACT:
A tone generator as disclosed that produces a specified waveform by reading out values contained in one of a number of arrays stored in an EPROM. Variations of the desired waveform are stored in a number of these arrays. A microprocessor is used to select among the various arrays stored in the EPROM to compensate for distortion in subsequent processing of the waveform, as a function of amplitude and frequency. The rate at which the values are read from the selected array determines the frequency of the tone produced. Also disclosed are various means for processing the waveform suitable for use in audiometric testing.

REFERENCES:
patent: 4241408 (1980-12-01), Gross

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