I’ve looked through and I’ve seen some people asking about sound. The response I have seen is to alter sound levels by using the Windows sound controls.
However, some of us want to listen to different sound – or even radio through their computer. If we turn the Zwift sound down or off with Windows controls then we can’t listen to anything else that comes through the computer – including Skype if we want to talk with somebody else who is also riding.
Surely it is pretty basic that one ought to be able to control the Zwift sound directly.