Built myself a setup with c922 as playfieldscam and 3 pcs c920 for the rest. Audio comes from a seperate mike via 3.5 mm audio plug.
All cam’s are plugged via an USB extension cable 5 mtr plugged direct into laptop (I7 8GB ram SSD). Set at 720p.
Works great.
A test drive with a webcam mic and a c270 which i replced with c920 afterwards can be seen at
When you hear the sound you know why I switched to a stand-alone mic
Whole setup costed me approx USD 300 without laptop. Looked for some used webcams which drives the costs down.