I occasionally visit this forum and SourceForge site, but
it seems that there has been no upgrade of VDMSound for a long time.
Can anybody say why?
(Maybe busy, or... tired...or there not being many features to be added?)
Anyway, still I hope VDMSound's upgrade so badly!
VDMSound 2.1.0 can not emulate Yamaha OPL chipset.
Yamaha compatible sound cards such as SoundBlaster16, Yamaha OPL-SA3 have YMF chipset, and some DOS programs directly manipulate YMF chipset.
Attatched file is an example of this sort of program. It plays music.
There are two main problems:
1. On Win2000 or XP, you can hear NOTHING. The program uses DMA to
control YMF chipset, but neither Win2k command window nor VDMSound support this.
2. If your soundcard is NOT Yamaha-compatible, e.g., AC97 series, you can NOT hear anything EVEN ON DOS and Win9x! The reason is that
recent soundcards like RealTek AC97 don't use YMF chipset.
So I suggest that next version of VDMSound should emulate OPL, OPL2 and OPL3 sound.

(Currently, DOSBox project supports OPL/OPL2/OPL3. On DOSBox0.61,
you can hear music when you run PLAY.BAT)