[mod.amiga] AM and FM modulation through HW

schwamb@mitre.ARPA.UUCP (01/27/87)

I've been looking for ways to do AM and FM modulation using the
AMIGA HW capabilities but have'nt found any examples on how to do it.
Some sources have described how to open and run a *single* waveform
through channels using the generic "Device" capabilities of the
machine.  But is there any interface to the A/D controls (as given in
the "adkbits.h" include file)?  This seems to be necessary to actually
get one channel to modulate the other.

So far I've tried fiddling with the ADKCONW HW register in otherwise
decent C code, with no results.  Anyone have some pointers?

Yes, I know how to modulate a single waveform through software control
but I'd like to use the AMIGA sound HW for the job to save processor
time.

-Karl

 "Generic Cute Disclaimer"