|Set the volume for playback of the file
Apple does not define a value range for this, but it appears to accept
0=silent, 1=normal (default) and then up to 255=Very loud.
The scale is logarithmic and in addition to (not a replacement for) other volume control(s).|
|Run leaks analysis|
|Play for `TIME` seconds
>0 and < duration of `audio_file`.|
|Play at playback `RATE`.
practical limits are about 0.4 (slower) to 3.0 (faster).|
|Set the quality used for rate-scaled playback (default is 0 - low quality, 1 - high quality).|
|Debug print output.|