FxSound gets the audio devices detected by OS. We need to troubleshoot that if for any reason your headset is not getting listed even though OS enumerates the device. Can you please run this powershell script which lists the audio devices from Windows, and share the output with us.
Get-CimInstance Win32_PnPEntity | Where-Object { $.ClassGuid -eq ‘{c166523c-fe0c-4a94-a586-f1a80cfbbf3e}’ } | ForEach-Object {
$deviceName = $.Name
$deviceGUID = $_.PNPDeviceID -match ‘({.*})’ | ForEach-Object { $matches[1] }
[PSCustomObject]@{
Name = $deviceName
PKEY_AudioEndpoint_GUID = $deviceGUID
}
}