I am using a laptop with realtek hi def audio as the only audio device.
using vmix the recording setup and selecting WMV streaming , so my output is streamed to the home network port 8080.
I like to be able to preview one source on the laptop speakers / headphone jack before clicking on fade that sends it out.

but looks like this is not possible with only one audio device . when I do this on the laptop I hear both output and input . and if I deselect the audio , it cuts it off the streaming output .

please advise.
thanks.