The sound configuration window presents as follows:

configuration window

On the right, choose the number and type of soundcard you have :

One soundcard : (default setting) sets the overall ouput of AtomixMP3 to your default soundcard. Select on the right drop down menu among all soundcards installed on your system.
3D soundcard : sets the two audio outputs of AtomixMP3 on the front and rear output lines of your 3D soundcard. Select on the right drop down menu among all soundcards installed on your system.
If your system support WDM drivers, uncheck the "Software 3D" emulation box.
Two soundcards : sets the two audio outputs of AtomixMP3 on each of your soundcards. Select on the right drop down menu among all soundcards installed on your system.

In the center, choose the ouput :

Single output : (default setting) sets the overall ouput of AtomixMP3 one soundcard.
Headphones : allows the monitoring of the selected song on headphones
- With two soundcards or one 3D soundcard
- With a Y-splitter and one soudcard, each mono output corresponds to the overall output and the monitoring line.
External Mixtable : send the left and right desk to separate outputs (via two soundcards, one 3D soundcard or a Y-splitter).