Why does OPL3 need an ADC?

[Green Xenon]

Hi:

OPL3 generates digital signals from scratch. So why does it need an ADC?

I can understand it needs a DAC to convert the digital FM audio to analog so we can hear the music. But why an ADC?

Thanks,

Green

[fluke]

Which ADC are you referring to?  The YMF262 is pure digital, the YAC512 is a DAC and the MIDIboxFM application doesn't support an AIN board.