PowerPoint 2016 exported mp4 video "jerks" on some slide transitions

Anonymous
2020-04-15T05:43:13+00:00

I am using PowerPoint 2016 - Windows 7. When I export to an mp4 video, I notice that at some slide transitions the video "jerks" (quickly flashes back and forth from previous slide). I am at a total loss as to why. I'm hoping this is something I am doing wrong and someone can help figure out how to prevent this from happening.

https://www.youtube.com/watch?v=d2IYaXmGHRc - video file exported from ppt and imported into youtube

Link to youtube video showing behavior

where it jerks: 55 seconds, 1:45, and 2:36

The same behavior occurs in original mp4 file exported from ppt. If you download the mp4 file and run in Windows Media Player you will see the glitches at the time points. For some reason, when I just run the mp4 in a browser, the jerks do not show up, I guess are "smoothed over" by whatever video player the browser is using.

https://www.ehdp.com/out/ppt\_light\_bg\_alternatives\_\_\_\_\_\_\_.mp4 - video exported from ppt

Link to mp4 file showing behavior

You will notice there is kind of a pattern. Approximately 50 seconds between the glitches. I have noticed a more or less similar pattern, approximately one minute between the glitches, in some other tests I have done.

https://www.ehdp.com/out/ppt\_light\_bg\_alternatives\_\_\_\_\_\_\_.pptx - the powerpoint file

PowerPoint File 

I also see this happen when I remove the slide timings and set the mp4 video export to advance slides every 5 seconds. In that case, the jerks happen exactly at 1 minute and 2 minutes.

The transition "jerk" never happens when I run a slideshow from within PPT. Only happens in exported mp4 video.

Slide transitions set to "none".

Any help appreciated. Please let me know if additional information needed.

If a bug in ppt, any suggested workaround?

Daniel

Microsoft 365 and Office | PowerPoint | For home | Windows

Locked Question. This question was migrated from the Microsoft Support Community. You can vote on whether it's helpful, but you can't add comments or replies or follow the question.

0 comments
Answer accepted by question author
Anonymous
2020-12-02T19:01:27+00:00

I too have this issue. The exported MP4 from O365 PP 2016 is experiencing the same "glitch" on transitions. After the transition completes, the previous slide pops up, sometimes the entire slide, sometimes only parts of it.

I've been using PP for this purpose for many years and never had this issue, even with Win 10 x64 and O365 2016 until recently. I'm suspecting it has something to do with one or more of the updates pushed out by Microsoft. (remember the debacle where the Win 10 update 1809 would delete your user profiles if you didn't store them in a "traditional" location?)

Anyway, in October this was working fine for me (we are a corporate entity that updates much slower than public users).

I've had to resort to two rounds of encoding making the process more lengthy.

Length of video is irrelevant unless of course it's shorter than the 55 seconds (yes mine also initially happens at 55 seconds go figure)

I am a software engineer and I can tell you that this is most definitely an encoding problem. It is NOT a player problem ... I suspect that the encoding is screwed up and some players more readily ignore them. But what do I know, I only design and write software for a living.

Was this answer helpful?

30+ people found this answer helpful.
0 comments

50 additional answers

Sort by: Newest
Most helpful Newest Oldest
  1. Anonymous
    2020-07-31T08:56:34+00:00

    I had the same problem.

    Mine got okay when I did the following:

    In the transition tab, we see two times: one for "Sound" and the other for "Advance Slide."  Although, I was using "[No Sound]" (additionally, the "On Mouse Click" option for advancing the sliding is also unchecked), my timings for both (for Sound and for Advance Slide) were different, creating jerks. I matched the timing, made it slightly longer to allow finishing all the animations.

    This solved the issue. I played can verified only with VLC, I didn't bother with Windows media player.

    Was this answer helpful?

    7 people found this answer helpful.
    0 comments
  2. Anonymous
    2020-06-17T04:06:31+00:00

    Thanks again for responding. Yes, I agree, the "jerks" show up when the video is played in some viewers, do not show up when played in others. It is puzzling. However, it is unclear (to me) what you mean by "the code" when you say "problem is in the code". Could you clarify? And as to "not a problem with the video itself", it seems to me that if the video "hiccups" when played, there must be a hiccup in the video file. Or are you suggesting that WMP and VLC somehow decide to jerk exactly at the slide transitions? Instead, I would suggest that the "jerks" are such a quick thing that some video players "gloss over" them in some fashion, in other words do not read all the video frames and end up ignoring the very few frames with the jerks. Any thoughts on that?

    Was this answer helpful?

    1 person found this answer helpful.
    0 comments
  3. Anonymous
    2020-06-17T02:13:18+00:00

    So I was having the same issues, but I can now confirm this is not a problem with the video itself. The problem is in the code and how the players read them... after having the same issue I sent the mp4 file to my smartphone, and it worked normally with no flashings or "jerks" as you call it. Then I went back to my pc and opened the file in Quick Time, and guess what? No problems... went back to vlc and media player and the problem persisted.

    Was this answer helpful?

    5 people found this answer helpful.
    0 comments
  4. Anonymous
    2020-05-29T08:26:13+00:00

    Thanks for the pointer AhmedFC,

    I was also seeing glitches at every slide transition in  mp4 (wmv worked fine), switching from VLC 64 bit player to Windows media player resolved the issue and on testing my video now plays correctly on a Samsung TV.

    For my issue was definitely an issue between the PowerPoint encoding and the VLC playback.

    Was this answer helpful?

    6 people found this answer helpful.
    0 comments