Discotheque Sound System - Version 2.3 Discotheque Sound System (DSS) is an advanced mp3 DJ mixing software with automatic BPM counter and beat matching. This program has 2 fully independent players with cue support, preview function, pitch, master tempo, live recording, cross faders for both master and monitor, AGC function (automatic gain control), real time sound effects, a dual 12 bands equalizer with kill functions, oscilloscope, spectrum analyzer and VU-meters. You can load and play wav effect files (like alarm, rhythm, animal noises ...) whenever you want to spice up your mixes. Another function is auto DJ: you can make a playlist and let the software do your job.