Ah, looks like another MusyX game. Sorry to say, but I think it's sequenced (at least ed_fx), which means you'll either need a dedicated component to play them back (and afaik no one knows how MusyX format works yet), or convert them into an appropriate format that will play back in your audio player (e.g. midi+sf2), and even then, to do that, you still need to know how MusyX works obviously.
For what it's worth, I made a sample extractor for MusyX games a while ago if you're interested. Pretty sure it'll work for this game too. http://hcs64.com/mboard/forum.php?showthread=36979 (see the last post on the second page for an updated version)
EDIT: tried it on the files you uploaded, and indeed it works.
@nisto: it did, they work in VGMstream. many thanks| some of them don't work tho :( or they're super-brief, I can't decide. used 0 as extraction format. perhaps an update to the script, please? EDIT: nvm, apparently converting them to WAV enables them all, kinda.
@hcs: I agree with you, I seem to remember vgmstream can already read AUD files, just not those ones.
what about those files without an extension? how to get audio from those, the "streamed" audio? edited 4:26 AM EDT August 28, 2014
Oh, sorry, must have missed your previous post. Can you re-upload the sdir/samp files again? And which sample has incorrect tempo?
Keep in mind that the tempo of the samples doesn't necessarily have to be the same as that of the note from the game sequencer, so you might have to manually adjust it if you want it to sound like it does in the game.