I've found that ShapeFusion does sound export, but I can't find anything not tied to MacOS Classic that can import sounds. I don't know what I myself might be able to do. I'd need some soundfile-reading libraries, though I might be able to do the rest with ShapeFusion's source code. I'd also have to do a user interface for importing sounds.
I've half-thought of doing new female-Bob sounds, but I've wanted to do that with text-to-speech software. Although it's easy to find text-to-speech readers, there are some problems:
* Laughter. I can't figure out how do it in TTS systems.
* Legal problems. Some TTS voices have "personal" pricing that only permits use on one's machines, without "broadcast rights". That's also apparently true of Apple's voices. Some others have "personal" pricing that is more ambiguous about that, saying "persona" use only, as opposed to "commercial" use. I'd want distribution over the Internet with generating only on my home machine, and free distribution at that.