Quicktime Screen Recording not Matching FCPX Timeline, why ?

[soamz]

Is there a known bug for QuickTime screen recording output video?
For example, IM making a video, where I'm shooting myself with a camera and audio.
And at the same time, Im screen-recorded my MacBook pro m1 on QuickTime.

Now, when I place the camera video and QuickTime screen recording video on each other at the top and bottom - of the FCPX timeline and align the start of the video, still rest of the whole screen recording is still not inline sync with my camera audio video.

Why is that?

Is the QuickTime not recording in 24fps?
And how do we fix the situation?

 

[Dave Braine]

I've just done a short QT screen recording, and it was at 47fps.

 

[IceStormNG]

Is the QuickTime not recording in 24fps?
And how do we fix the situation?

Use something like OBS. QuickTime records with variable framerate which is a pain for most NLEs. OBS allows you to specify the framerates and it will record with constant framerate. Then you should not have any issues.

 

[lin2log]

First off… why the **** would you even work in 24fps?? 🤦🏼‍♂️
Second, try OPTIMIZING the footage and you'll be amazed.