> I mentioned this to indicate that OPL2 is not a full superset of OPL1. By
> the way, I think it wouldn't be too hard to emulate ADPCM using PCM,
> especially since Alex Wulms published conversion routines. I know Yobi
> succesfully used those to play MWK files on the MoonSound.
The MSX-Audio chip is NOT OPL1!!!
The Y-8950 is an MSX LSI, just like the V-9938 and the MSX-Engines.
It's copyrighted by ASCII, Microsoft and Yamaha. The MSX-Audio
contains not only an OPL! but also A/D converter, memory logic, ADPCM
parts. There is an external D/A converter (Y-3014) for the chip's
combined 12 bit or so output, like the OPL3 has. The Music Module has
another D/A converter (which has nothing to do with MSX-Audio).
p.s. why are we talking about OPLx in every thread now?
Tristan
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