FxSound works very well… until it disconnects from the sound device.
Intermittently, usually after my PC is left unattended for a while, I find out I have no more sound. A simple check shows FxSound does not see my sound device anymore, the Audio Device box is empty.
The simplest way to recover is to go to the Device Manager, disable the audio device, then reenable it. The effect is instantaneous, the Audio device shows up in the FxSound box and sound works.
There is no pattern. Sometimes it happens day in day out, sometimes it can happen several times a day.
Info: Windows 11 Pro, sound device Intel Display Audio