We just did a 4 vmixcall input livestream where 4 livestreamers on the streets covered an event from different locations.

Live Mixing and streaming was done in the studio.

The vmixcallers can see when they are live (the production screen will show they are live) but communication in a live event is difficult (we had one button talkback but sometimes noisy, busy so they did not hear us).

Chat is unusable in this live setting on an iphone/mobile (too small). So we need some simple visual triggers:

1. would be a tally light to show a vmixcaller is on preset - so the vmix caller knows he/she might be next on.

2. would be a button so the vmixcall camera person can flag the studio there is something interesting happening (they are going to interview or there is action etc).
(we now did this by putting a finger or a hand in front of the camera but you can miss this: so a button to 'ring - flag' the studio would be helpfull.) this would give a light that would have to be disengaged or something.

The flag would trigger a flashing red light in de preview window so we know that caller needs attention. this could be disengaged by presetting or klicking the preview window or something.

we might do events with more than 4 vmix callers so difficult to keep an overview at all times.

cheers
Stefan