Video is Playing in Slow Motion

[ianm52471878]

I've been using APE 11 since its release, to edit my holiday movies, and have had no previous problems with it. However, for part of the movie that I am currently editing, the video is running slowly and is out of synch with the audio. The clip in question is of considerable length - around 50 minutes - and I'm wondering whether this may be related to the problem, although another possibly relevant factor is that, unlike the rest of the movie, the clip is from a Samsung Galaxy 'phone, whereas the rest of the movie clips are from a JVC Everio and an iPhone.

Thanks for any advice.

[John T Smith · Accepted solution]

Report back with the codec details of your file, use the program below
Free program to get file information for PC/Mac http://mediaarea.net/en/MediaInfo/Download
- when you analyze your file in MediaInfo and post a screen shot in the forum, do so in TREE view
- post your information IN your message, not as an attachment that someone would have to download
.
Does your video use a Variable Frame Rate? See https://community.adobe.com/t5/Premiere-Pro/Variable-frame-rate-video-with-Premiere-Pro/td-p/4601935
If yes, use https://handbrake.fr/ open source transcoder/converter to convert to Constant Frame Rate

[ianm52471878]

Thanks for your very helpful reply. I ran the video through Handbrake, setting it to Constant Frame Rate, and all's well now. 

I'd have thought that APE should have given advice on this problem in its Help items, and incorporated Constant Frame Rate into its software. Sometime it seems that I've paid a lot for APE but not had a particularly wonderful product in return.

[John T Smith]

I do not work for Adobe, but based on reading a lot of messages, Adobe SEEMS to expect video from dedicated cameras, not from cell phones that very often use VFR encoding... and the user is not given a warning when such a video is encountered, it simply doesn't work properly

[Bill Sprague]

Like the OP, I have a Samsung Galaxy phone.  I don't have trouble editing video from it in the current version of Premiere Elements.  Nor did I have trouble with the last version.  The OP is using version 11.  I think a "rule of thumb" might be to be using software newer than the phone itself!

[ianm52471878]

You make a valid point, Bill, but it's an expensive exercise. If I purchase APE 2022 it'll be the fourth version I've bought over the years. Oh well, I suppose I'll have to do it!