Currently I have one computer connected to the AV receiver via TOSLINK (optical audio). The other computer is connected to the receiver via coaxial S/PDIF. When I switch computers I have to physically go to the receiver and switch between the two input channels. This presents two problems:
P1: Manual action required
P2: Only one computer can play sound at any given time
Ideally, I would want a S/PDIF mixer that can decode the two S/PDIF streams, add each constituent channel together, and then output that as a single S/PDIF stream to the receiver. But I can't seem to find this anywhere.
Most mixers I've found are:
1. Analog mixers
2. Pro audio mixing consoles that have a dozen input channels and 50 dials on it, with a price tag to match