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Delay during playback

Has anyone else experienced this issue where you're editing a Screenflow document and randomly, the audio becomes significantly delayed by a few seconds? I'm not really referring to lip sync issues, but rather the playback. If I save the document, quit Screenflow and open the document up again, it will be fine.

It's really annoying and I don't have steps to reproduce it as it seems to be random. The most I can say when I experience it is when I take a break from editing (because listening to my own voice sucks), I'll watch a Youtube video or two and then return back to the editing.

I don't think that it is my machine. It's a Mac Pro with 192GB RAM, 1TB SSD. The Screenflow files that I work on are usually are between 1GB to 5GB in size. It happens with screen recordings as well as motion video recordings. The document size I work on is 1080p.

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    • CraigSModerator
    • Telestream Desktop Forum Moderator
    • CraigS
    • 2 yrs ago
    • Reported - view
    Dave Kimura said:
    It's a Mac Pro

    2013 or 2019?
    Xeon processors don't offer hardware accelerated decoding for H.264 or HEVC but the newer Mac Pro (as does the iMac Pro) does some of that through the GPU.
    ScreenFlow 9.0.5?
    Catalina 10.15.7?

    Timeline content and codec may be a factor as well. Some H.264 and especially HEVC can be sluggish.

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    • CraigS It's the 8 Core 2019 version.

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    • CraigS The strange part is that it's random and only after I have been away from screenflow for a bit of time (~10 minutes).

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    • CraigSModerator
    • Telestream Desktop Forum Moderator
    • CraigS
    • 2 yrs ago
    • Reported - view
    Dave Kimura said:
    The strange part is that it's random and only after I have been away from screenflow for a bit of time (~10 minutes).

     When that happens open Apple's Activity Monitor and see if you can spot anything such as growing RAM use, high CPU use, another app running in the background. 

    Again I need specifics on ScreenFlow version and macOS since the incremental updates on both includes fixes and, especially with the OS, changes might have a negative impact we'd also need to look into. 

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  • 2 yrs agoLast active
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