Re: SFX sound expander

From: Martijn van Buul (
Date: 1998-12-21 11:33:29

Richard Atkinson wrote:
> > > As to the chip itself, well I don't think it's an OPL2 or OPL3 as these
> > > were 2 operator FM synth chips (used in Adlib and Soundblaster).
> > 
> > The OPL3 (as used in SoundBlaster Pro 2.0 and onwards) is a 4-operator
> > FM chip..
> Ooh! Is it? This means there must be docs somewhere! :) My understanding
> was that stereo was implemented using 2 of the earlier chips, later
> integrated into one, but if there is a 4 operator chip out there
> (compatible with the 2 operator ones) I'd like to know its Yamaha part
> number.
The 'original' SoundBlaster Pro had two 2-operator chips. The later
version (the so-called SoundBlaster Pro 2.0) had an OPL-3 chip. That
card was shortly replaced by the SoundBlaster 16, which has the
same FM-chip.

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