Virtual Audio Cable is a fun and interesting bit of software. The program is designed to seamlessly take sound coming from one application and turn it into audio input for another. The most interesting aspect of the program is that it doesn't require any additional equipment like a microphone. Keep in mind if you wanted to do this kind of thing without the software you would need speakers, a microphone and other bits of equipment to keep the sound quality high. Virtual Audio Cable eliminates all of that.
Virtual Audio Cable has a unique windows integration that might catch users off guard. Whenever the users use the software a virtual cable actually shows up the applications you are using. That might sound and seem confusing at first but once you realize that it just the program working you'll be used to it. Which brings me to my next point. Virtual Audio Cable does have a bit of a learning curve about it. This is mainly due to tot he fact it operates in such a weird way. Add on to the fact there is no solid tutorial that comes with it either. I'd suggest looking up user made tutorials on other websites to get the basics down. Also, keep in mind all applications are not compatible with Virtual Audio Cable. Basically, anything that doesn't allow custom audio input or output sources won't work with Virtual Audio Cable. Another thing you have to keep in mind when using Virtual Audio Cable is that your computer is way above the minimum requirements to prevent any sound quality issues. The most common ones being an annoying audio stutter or popping sound. I'd say anything over 4GB of ram is fine, other than that the program is solid.
Transfer audio between application with no added equipment or special settings.