Load at least two prerecorded sounds, and demonstrate as many of these features as you can:

 playing them individually and simultaneously
 stopping before the end of the sound
 looping (preferably glitch-free)
 setting the volume of each sound
 stereo or 3D positional mixing
 performing other actions when marked times in the sound arrive
Describe:

 The supported audio formats, briefly.
 Whether it is suitable for game sound effects (low-latency start, resource efficiency, supports many simultaneous sounds, etc.)
 Whether it is suitable for playing music (long duration ).
[Note: If it seems to be a good idea, this task may be revised to specify a particular timeline rather than just 'demonstrate these features'.]

Where applicable, please categorize examples primarily by the audio facility used (library/API/program/platform) rather than the language if the language is incidental (e.g. "Mac OS X CoreAudio" or "mplayer" rather than "C" or "bash").

#!/usr/bin/sh
 
# play.sh
 
# Plays .au files.
# Usage: play.sh <recorded_sound.au>
 
cat $1 >> /dev/audio # Write file $1 to the speaker's Character Special (/dev/audio).