A total of 1 review of this product on Reddit.
1 point
·
11th Jul 2019
https://www.computercablestore.com/5-ft-audio-y-splitter-cable-35mm-female-to-stereo-males
this would technically work, but it’s somewhat risky if both computers try to output audio at the same time. I’d add a resistor if you know how, but I’ve gotten away with not doing so on several occasions (that doesn’t mean it’s okay, though!).
A quick google search also turned up this: NKR K1000 which is available from various places. It may work better than a splitter cable used in reverse.