Hello everyone, first of all sorry for my bad english, i'm french and no realy good in this language.

For a animated series in voxel, I need to create two voices for two characters. There voices must look like a human voice (with intonation/inflexion) but not understandable, a bit like R2-D2. After what I'll match the dialogue sound with subtitles for the comprehension.
All in 8 bit of course.

So i search for a device, or softwar who can do that simply, possibly with a microphone (I think i don't need complicated features, cause i tried with some softwares but you know, i'm a noob in that stuff hmm )

That's all, if you have an idea, thank you ^^ .