The Mac has integrated Intel UHD 630 graphics.Īnd guess what? The CPU usage isn't any better. The setup is the same, except the UltraStudio mini goes through an additional Thunderbolt 2 to Thunderbolt 3 adapter. I thought that I could improve CPU using by getting a more modern machine. While the virtual camera output was on, CPU usage would range from about 50% to 80%, with an average of about 65%. Live Previews are set to 'low framerate'.Īll this was being done on a 2012 iMac with quad-core i7 and Nvidia GT 750 GPU. Audio from Scarlett 2i2 USB is captured and enhanced by Audio Hijack, mixed with background music from iTunes, and delivered to Zoom using Loopback Audio.Zoom also uses Logitech C920 as a second camera for talent (me).

Video output goes to Zoom via Virtual Camera.Capture of iPad screen using Black Magic UltraSudio Mini HDMI to Thunderbolt 2.Capture of Mac laptop screen using Desktop Presenter.I'm using Wirecast to ingest a couple different video sources and making them available to Zoom via the virtual camera.

Mac mini vs imac for recording