From Zhorn Software:
SoundBoard loads up to eighteen .wav files, and allows you to play them at the click of a button. Each sound clips can be renamed have its volume set, and a position chosen. This configuration can be saved, and loaded so that your SFX are always instantly available and at the correct volume and position. Six "favourite" sound schemes can be chosen so that they can be quickly retrieved. Multiple sounds can be played at a time, and the sound can be paused or stopped. Volume and position changes are effective immediately, whether or not the SFX is playing.