Tinny is just another way for me to say "downsampled." I'm saying the same thing. But the quality to my ears is still inferior to that of the OPTi 82C929A. Let me specify "muffled sound" compared to "downsampled/tinny" sound:
Muffled sound: Sounds like there's heavy filtering on it, so heavy the high frequencies are almost inaudible(there's another type with heavy filtering that still retains some of the high frequencies, and that's what I call "bass-heavy sound," which pretty much every SoundBlaster Pro clone, later SoundBlasters with DOS support and PCI sound cards have on the digital sound end).
Downsampled/tinny sound: Sounds like the sound clip is being played at a lower sample rate than it was originally recorded.
The latter is what I notice on the SoundBlaster Pro 2.0 on every game I heard sound clips of. All the clones and the later SoundBlasters all have either muffled or bass-heavy sound(the SoundBlaster 16 WavEffects, SoundBlaster AWE64, OPTi 82C929A, OPTi 82C931, SoundBlaster Live! 5.1, SoundBlaster Vibra128, Ensoniq AudioPCI and Avance Logic ALS4000 are some examples of sound cards with bass-heavy digital sound. The ESS Maestro-2 would be and example of muffled digital sound).
Then there's unfiltered sound where none of the frequencies are boosted in any way, as is the case with my HP AZT1008 with Aztech AZT2320 chipset for both digital sound and FM Synthesis. Actually, I think this sound card has UPSAMPLED(if it's even possible) audio, as the clarity is better than every other sound card I've used, but it's sometimes a little TOO clear, as some sounds in X-Wing come out weird.
I don't have a copy of Indiana Jones and the Fate of Atlantis. Sorry.
Creator of The Many Sounds of:, a collection of various DOS games played using different sound cards.