[Fluxus] rfc: (oa-set-pitch)

[gabor papp]

hi all,

we needed to set the pitch of a sound sample with the fluxus-openal module.

it is added to git now. (oa-play) now returns the sound source id, which 
can be used to set the pitch, and possibly also other parameters later.

example:
(define s (oa-load-sample (fullpath "sample.wav")))
(define id (oa-play s (vector 0 0 0) 1 1 #t) ; looping sample
(oa-set-pitch id 2.0)

what do you think? comments are welcome.

best,
gabor