I'm editing training videos of screen captures of software operation. I'm seeing two artifacts.
In some cases when there are thin horizontal lines in the video they strobe a little faster than once a second. This is not too big a problem. I can cover these with a graphic in FCPX. This appears in the source video and the edited result.
Rarely, for five seconds or so one half of the screen will strobe at about the same rate. This only shows up in playback with Windows Media Player. Quicktime, VLC (on the Mac and PC) and FCPX don't show this on playback of the same video.
I guess this is a compression artifact. Compression looks at differences between frames. Maybe because the graphics card is updating these areas while they are being captured then that produces small differences which get enhanced by the compressor?
Anyone seen this? Anyway to change the compressor to try to smooth this out?
I use Icecream Screen Recorder in Windows 10 to capture the video. FCPX on an iMac (i9, 40GB) to edit them.
Thanks.
Edit: Fortunately, the section where this occurred the screen was static and I was doing narration. I extracted a single frame and used that to cover over the time when the video was strobing. This worked for this one case, I'm worried about future work as I still need to do several more of these covering the same software.
FYI: the video was captured on a Dell Latitude 5400 laptop.
In some cases when there are thin horizontal lines in the video they strobe a little faster than once a second. This is not too big a problem. I can cover these with a graphic in FCPX. This appears in the source video and the edited result.
Rarely, for five seconds or so one half of the screen will strobe at about the same rate. This only shows up in playback with Windows Media Player. Quicktime, VLC (on the Mac and PC) and FCPX don't show this on playback of the same video.
I guess this is a compression artifact. Compression looks at differences between frames. Maybe because the graphics card is updating these areas while they are being captured then that produces small differences which get enhanced by the compressor?
Anyone seen this? Anyway to change the compressor to try to smooth this out?
I use Icecream Screen Recorder in Windows 10 to capture the video. FCPX on an iMac (i9, 40GB) to edit them.
Thanks.
Edit: Fortunately, the section where this occurred the screen was static and I was doing narration. I extracted a single frame and used that to cover over the time when the video was strobing. This worked for this one case, I'm worried about future work as I still need to do several more of these covering the same software.
FYI: the video was captured on a Dell Latitude 5400 laptop.
Last edited: