Broadcast audio to multiple speakers
You can talk or broadcast audio to people near multiple speakers attached to a camera.
On the Audio pane, in the Speakers list, select All speakers.
Select and hold down Talk for as long as you want to talk.
Note
If you've selected List only devices from current view on the Audio pane, some devices might not be shown.
Note
If the Microphones list shows Missing hardware on local PC, your computer either doesn't have a microphone installed or it is disabled. If it shows No microphone sources, no microphones are attached to the cameras.