Stereomix doesn't works with multiple AudioPlayer Devices Connected to the PC Using the Jitsi Streaming service for an conference or other streaming services with firefox, you have to change the Audio Input Device. In Windows 10 the Stereomix doesn't works as aspected and can't be used as Streaming Outgoing Audio. In Audacity I have to select the Audio Endpoint instead of the Stereomix as Mikrofon. If I've selected audio Device A as Output Audio Device and want to Stream the Sound wich goes to Audio Device A this has to be selected as Microfon. If Device B is .... Stereomix doesn't works here.