Audio and Video out of sync but only on export

johnebaker wrote on 5/19/2016, 3:30 AM

Hi

This is a common problem with video which is of a variable framerate which some smartphones, webcams and a few cameras record in.

What was the source and format of the video you imported?

Use MediaInfo to analyse the a clip and post the results from the Tree view.

John EB

Conners wrote on 5/19/2016, 4:41 AM

thanks johnebaker, the source of this file is actually "After Effects (http://www.adobe.com/uk/products/aftereffects.html)" - you see I was "trialling" it on a friends pc, - and as a trial of "after effects" I did a 45 minute picture in picture video (2 video clips, from my Samsung Galaxy Note 5 Phone, combined together and the audo from one muted) then exported it as a mov/h.264 file (using this technique https://www.youtube.com/watch v=lpy3JK5GWvE) then used "adapater" (http://www.macroplant.com/adapter/) to convert it to mp4

then I used THAT mp4 as an import for Magix

EDIT: when I posted this with "proper" youtube links the forum software broke and only printed abour 20% of what I wrote - it seems posting youtube links SEVERELY breaks a post magix you might want to look into this forum bug

johnebaker wrote on 5/19/2016, 5:03 AM

Hi

. . . . it seems posting youtube links SEVERELY breaks a post magix you might want to look into this forum bug . . .

This is a user forum provided by Magix for users to help each other and showcase their creations.

Youtube links do not break the forum - an incomplete URL or URL with disallowed characters in a link may break the web browser stopping it displaying the post properly.

We need the MediaInfo data for the mp4 video to determine if the video is the issue.

OT:

I would recommend not using the MOV file format - Apple are no longer supporting or fixing security bugs in Quicktime for Windows - see these articles 1, 2, 3

HTH

John EB

Conners wrote on 5/19/2016, 5:06 AM

Hi

This is a common problem with video which is of a variable framerate which some smartphones, webcams and a few cameras record in.

What was the source and format of the video you imported?

Use MediaInfo to analyse the a clip and post the results from the Tree view.

John EB

John

I might have mis spoken as a precatiopn I re-ran the export it appears that the 1920x1080 size mp4 I exported as was actually so big that vlc player juddered opening it. Probably becasue all the RA was recruited by the recent export. When I re-opened it this morning in vlc the file ran fine.

Conners wrote on 5/19/2016, 5:08 AM

Hi

. . . . it seems posting youtube links SEVERELY breaks a post magix you might want to look into this forum bug . . .

This is a user forum provided by Magix for users to help each other and showcase their creations.

Youtube links do not break the forum - an incomplete URL or URL with disallowed characters in a link may break the web browser stopping it displaying the post properly.

We need the MediaInfo data for the mp4 video to determine if the video is the issue.

OT:

I would recommend not using the MOV file format - Apple are no longer supporting or fixing security bugs in Quicktime for Windows - see these articles 1, 2, 3

HTH

John EB

you're speaking to the wrong guy ^^ I've been writing software for too long, in cluding implmentatiosn of WYSISWY editors which are all partly broken: I assure you there is a bug in the WYSIWYG editor (not introduced by me) - you can see it by stepping back through my 3 edits

Scenestealer wrote on 5/19/2016, 4:04 PM

it appears that the 1920x1080 size mp4 I exported as was actually so big.........

Really, a 3min MP4? That should be about as small as they get. Sounds like something was not right in the export settings.

Ss

browj2 wrote on 5/19/2016, 11:15 PM

- one of mine

Hmm. Just had to try it. Maybe it's not long enough.

- Hitfilm 4 for beginners

No problem there, maybe copying the one shown by Conners:

- How to install H.264 Video codec in After Effects and Render mp4 Videos [100% Working!]

Now to Send (post this to see if it breaks the Forum.

EDIT: Nope, didn't break the Forum. @Conners, must be something wrong with your computer. It looks like it didn't put in the ? before the v=.

Try posting to Dropbox or somewhere 3 minutes of your source video so that we can try it, and also post good screen shots of the Export parameters that you used.

You imported two clips from your phone into AE, exported to a format that is not recommended, translated it to mp4 using a program that you found on the web, imported the result into the trial version of MEP, exported to mpeg - mpg or mp4 you didn't state, and then wondered why AV was out of sync?

Why didn't you simply import the video from your phone into MEP? Try it. Trim it to less than 3 minutes, export. AV in sync?

Did you try importing the exact same resulting video back into AE and then exporting to mpg to see if it could do better?

I presume that you mean AAC and not ACC.

I exported a 15s clip 1920x1080 to mpg and it was 55,548KB; the same clip as mp4 was 8,559KB. So yes, you can expect a relatively large file size with mpg. A 3 minute mp4 should probably be around 110MB. What was the size of yours and what were the export parameters?

Are you trialing MEP2016 basic, Plus or Premium?

Lastly, there have been a couple of patches. Were you able to update to the latest patch 15.0.0.90?

Most of us do occasionally have sync problems, but there is usually an explanation and sometimes an easy solution. John EB is one of the experts on this in this forum.