You really have to learn about some of this stuff to understand and make it work... there is a limit to how much information and help can be offered without knowing more about your setup and systems...
- what is the PC sound playback system?
- what is your artnet program?
- how do the two interact (work together?)

We can't program your show and setup your kit over the forum! - only suggest methods of achieving a result - its down to you to understand the technology and apply the knowledge and use your skills.

If you don't have the knowledge and skills - you must find and employ someone who does!! - There are many users out there who can do this on a regular basis and earn a living from it.

Most of us on the forum can offer help and support about CATALYST software - and some of the peripherals commonly used - but be realistic - we cant setup your whole show blind over the forum!...

Where are you based and when is your show?

S