FMODex Compression|Bank Type Help

Hello, I’d like to ask is “Decompress into memory” better than “Load into memory” for talking sound.
Also, I’ve read the documentation of the FMOD but there is nothing about the VORBIS compression and that’s also part of the third question

What are MP3, VORBIS, PCM compressions for e.g. music, SFX

There is documentation on this for FMOD Studio