DEFMAG

Digitally Encoded FM Audio Generator — is a 29 byte machine code routine that allows you to store audio frequency data and to synthesize the facsimile sound at will. You may use complex mathmatical formulas to provide digitally sampled values from any continuous number field. These values are correlated to the audio spectrum so you can “hear” the resultant waveform. One version of the DEFMAG driver uses a single byte of the data storage area to hold the value from an individual key pressed. It turns the keyboard into a crude electronic organ.