There's no real reason not to use float for audio. It's light on system
resources (compared to everything else we're doing at least) and the code
becomes simpler when we can assume all audio will be -1 to 1 rather than 0 to
255 or -32768 to 32767.
The only thing we might want to do one day is move up to SAMPLE_FMT_DBL, but
this should only take some mild refactoring and all our assumptions (i.e. -1 to
1 range, etc.) can remain the same.
itsmattkc
59d32f60ad