Every sound from SHSO,sounds in ogg and wav.
Some sounds have problems (like Baxter Plaza main theme) but most of all characters VO and FX it's ok.
Sounds are not converted,so you should convert them into MUA format (22050 Ghz,16 bit,Mono) by yourself.https://mega.nz/#!mhYRSZ4B!UETj36bKN2s6f65wqMQVWNFvykOBb6GwyraZLRwNeAs
P.S I hope this will be useful for someone
P.S.S According to some audio files i can say what developers was have some plans for
but only what is left from him is a just a little bunch of audio clips..