I can confirm the audio - specifically, the percussion - doesn't sound quite right. I used Contra as my testbed, as that's a game that I'm very familiar with, listened on my real NES, and even compared it against a couple other emulators I use; melodically, the audio seems to be there; percussion-wise, it should sound more like someone actually hitting a drum - I guess a bit more "pointy" (if that makes sense) and less "flat," like it sounds now, especially on the Noise channel; meanwhile the DMC channel sounds a wee bit too "muddy," I guess is the right word for it, though it seems less affected than the Noise channel. I wish I had better words to describe it, but I know for sure that what I'm hearing isn't _quite_ right. Keep trying, and you're bound to get it spot-on.

Also, sorry to say, but I'm having some significant audio lag, regardless of the settings I use. It's very noticeable - several miliseconds at least. I'm running Manjaro Linux, a derivative of Arch. At first I thought it may have been input lag, but after thorough testing with Contra, as I am acutely familiar with the timing nuances in that game, I can confirm that input is not the issue. I am running the ALSA backend, and I do not experience audio lag with other emulators (I used to when I had JACK enabled, but not since I removed it a while ago).
Other than that, man....this emulator is an impressive piece of work. Keep it up.
