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Question

video and audio fall out of sync in Captivate 6

Forum|Forum|12 years ago
June 18, 2013
2 replies
3251 views

I made a great little video demo in which I added audio while I recorded it in Captivate 6. However when I play it back the audio and video fall out of sync. How can I fix my problem and how can I prevent it from happening again?

JJ

This topic has been closed for replies.

D

douglasbeagley

Known Participant

I also experience this problem. The SWF file compiles and plays great, but when I output an MP4 file, the audio and video fall out of sync. My machine is beefy enough, and I'm running the latest version of everything on Windows 7.

I've experienced this problem on every version of Captivate, and I've just assumed that Captivate can't handle time well when creating an MP4. I'd love to know if there's a secret solution, as this problem prevents me from putting content on YouTube.

A

Anonymous

Douglas, I found that even the SWF files have started to get out of synch as well (although not as badly as the MP4), so with Adobe's blessing, I installed Captivate 7 on my 2009 model MacBook Pro (with Windows 7 running in Bootcamp) and now when I publish both SWF and MP4 projects, they are in perfect synch.

The strange thing is that my MacBook Pro probably has less grunt than my work PC (Dell Lattitude) and I would also have thought that running in a Bootcamp based Windows 7, that would detract even further from Captivate's performance.

I am happy that this solves the synch issue, I am not happy that I must continually move projects between my office PC and my home based MacBook Pro in order to do this and I am still none the wiser as to what is actually causing the problem; although I do wonder whether it is in some way related to the reporting to base issue that was causing Captivate 7 to go into a not responding state every few minutes (that was resolved with a patch provided by Adobe support)..

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philcarlson

Known Participant

I was recently having this problem with one video in my deck. It was fine in SWF, but it was out of sync in HTML5. There is another video that was working. The audio was fine.

After working on this for a while, I went into the HTML zip file and played the videos in the vr folder. The audio was out of sync at the file level. I'm thinking that Adobe Encoder didn't encode it correctly.

I tried to take the orginal video file, an AVI file, and use Adobe Encoder to change it into an MP4 file. Then, I changed the name and put it into the zip file. This did not work.

When I tried to publish it again, it worked. I'm not sure if it just got lucky or what.

Where do you find the video files as they sit in the Captivate folders? I wonder if you can encode them from there directly?

Varun Kalra

Participating Frequently

Hi JJ,

Make sure that Captivate is updated to 6.0.1.240 or 6.1.0.319 (Help > About Adobe Captivate), also tell the Operating System that you have?

Is it a .cpvc file or .cptx that you created?

Are you getting this issue in the preview or after publishing too?

To prevent recorded video issues to happen, you can go to edit > Preferences > Recording > Video Demo, Select Video color mode as 32 bit, but that will work from next recording.

Thanks.

S

shivers235Author

Participating Frequently

Hi again,

I am using Captivate 6.0.1.240 on a windows 7 pc. I am working with a cpvc file. I have edited my preferences to 32 bit and re-recorded my project, once by narrating while I recorded and the second time I recorded and then added my audio. Both time the audio falls behind the video and they become out of sync. The problem happens while I preview and after it has been published.

Any help would be appreciated.

JJ

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