So depending upon your configuration simply changing your audio bit depth to 16 should work with the basic capture syntax:įfmpeg -f avfoundation -i "1:0" Screen. Note: a screen resolution and frame rate must be set before setting the input, else an error will prevent the recording from starting.
Note, in Audio Midi Setup.app your "system audio" device will be indicated by a Finder icon and Speaker icon - I use an external monitor through my thunderbolt port and the "system" audio is routed to that device, not the Built-in Speakers. Luckily the FFMPEG script is quite simple but since the list may differ from computer to computer here's the script idea ffmpeg -f avfoundation -i ':
Note, in Audio Midi Setup.app your "system audio" device will be indicated by a Finder icon and Speaker icon - I use an external monitor through my thunderbolt port and the "system" audio is routed to that device, not the Built-in Speakers. Luckily the FFMPEG script is quite simple but since the list may differ from computer to computer here's the script idea ffmpeg -f avfoundation -i '
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