Ah sorry for the confusion. Honestly don't know what the correct term would be here. But yes, I meant the waveforms in Osc 3 and 4.
OK, that's what I thought, but I wanted to make sure. I've got a Commodore 64 set up in my basement right now, so I'll get to work on some genuine SID waveforms and post them on WAV2Evolver (
http://wav2evolver.beigemaze.com). I have the rest of year off work, so this won't be a problem. I'll be right back!
Unfortunately, I don't know where to find formants, but I know that forum member Razmo was working on stuff like that.
Meanwhile, any single-cycle WAV files you happen to find online, you can convert to Evolver format with the aforementioned WAV2Evolver.