how to use virtual audio cable with xsplit

Start ScannerCast and set it up for your IceCast server. I won't go into detail here because every setup is different here's the manual. Set your favorite VoIP program to use your normal sound card, too, since you don't want it being looped through VAC. Set the buffer as low as you are comfortable (150ms works for me, you may have to use more if you're running intensive programs this is your sound lag from when it plays to when you actually hear it). Open a VAC repeater and feed your virtual cable to your usual output device. This is where all of your sounds will be playing, so don't be surprised when things are quiet. Set up a virtual audio cable and change your default audio device to that cable. Once you have those, here are some instructions. I guess it's supposed to be used for radios of some sort, but it works really nicely for simple audio. It's free and supports all sorts of Fun Stuff. This costs $30, but is pretty well worth it if you plan on streaming often. Note that you'll suffer a bit of lag in the sound from whichever you choose to delay, though you can get away with setting it to 150ms. (If it doesn't, feel free to ask and I'll try to set it up myself as well)

I haven't tested this specifically, but it should work. Well, since you're only streaming audio, it won't be too difficult.

How to use virtual audio cable with xsplit