Sync of external cam and desktop recording in one picture fails


Setup: Newest Apple Macbook Pro M1. Latest OS.  Lates Screenflow software. External Cam Logitech 930e. External Audio Interface for the sound ( my voice and piano). All goes in via USB. 

Aim: Piano tutorial, top screen recording of virtual keyboard. Bottom: My fingers recorded by Logitech Cam in 1080p. 

Problem: Cam recording lags increasingly with time. Screen recording and sound stay in time. 

Cam in 720p seems better. But my mac is hyperfast. Full HD should work. 

Please help, anyone! 

Thank you!!


3replies Oldest first
  • Oldest first
  • Newest first
  • Active threads
  • Popular
Like Follow
  • 2 yrs agoLast active
  • 3Replies
  • 7Views
  • 2 Following