Sans might've sounded decent in your bass octave voice lol. That was way too high pitched for sans LMAO. But the Mettaton one was actually almost solid.
Golden sun has some great vocal work using just sounds. Each character not only speaks in sounds but they emotions will change the pitch of the sound when they speak emotionally!
I actually think the Sans and Mettaton voices work well I do have a few suggestions for voices to try with the Real Time AI Voice Changer or whatever it's called...Cat Girl Without Salad: Amuse-Bouche or Vitamin Connection, both Nintendo Switch games heheheheh
It is only longestsoloever² that can strike fear into the hearts of viewers with the mere title alone... Although, 2 OP's newest song is a fierce competitor...
this is amazing lmao for more recommendations, ofc deltarune would be the obvious way to go here, but i know you also mentioned banjo-kazooie character maybe lol OOORRRRRR you could try hollow knight, since thats got a LOT of characters with gibberish dialogue, i tried making an ai with grimm and it turned you pretty well, so maybeeee
Oiyo, this sounds like an awesome addition to ai voices so we could put their in-game voices to the test, and prolly into proper project. P.S. Papyrus was yelling in many of these voicelines
If you see my pfp here. PLEASE bring him into some kind of singing voice. Im very curious if its possible since he's from a very old cartoon network show. If anybody needs his name, its Naga from Bakugan battle brawlers