When using softwares like Ableton Live on stage, with not such a powerful laptop and a cheap soundcard, the problem is that the output instrument sounds come out with a time delay of a few ms, which can be quite uncomfortable when playing on stage.
I use this unwanted delay as a stereo effect for the stringed instruments by a very simple trick :
Instrument signal enters the soundcard by the left side. I use the direct stereo monitoring, which means that direct instrument sound is sent to the left output. Then in Ableton Live, I send all the instrument output to the right side, but it will be heard with a little time delay.
[ yann ]