MP4 Render. Video and audio lose synch towards the end

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  • Updated 6 years ago
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Got a new computer this week with all the PowerPoint and video capability. The problem is the project I am working on will not now render correctly. It's a 29 minute video, which I had no problems with on my old computer, with 250 jpg's that I captured from PowerPoint. I edited the slides to the narration and no problem. Since I received my new computer the client had some changes. Camtasia worked great, made all the edits but when I rendered out to video, (Tried MP4, WMV and AVI) the audo and the video start to get out of synch about 5 minutes in. It then gets progressively worse until the end where it is a fulll 2-3 secs off.  I spent all day yesterday trying to fix thinking I was doing something wrong. Also tried to create in Windows Movie make WITH THE SAME PROBLEM!! Any advice would be appreciated.
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Tony Tyner

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Posted 6 years ago

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kayakman, Champion

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250 JPGs plus lots of edits can result in an overly complex project that can be hard to handle by any system

because you said " ... tried to create in Windows Movie make WITH THE SAME PROBLEM ... ", I suspect the issue is not a unique Camtasia problem, but more a resource issue

break the project into 5 sections, and put each in Library; then, with 1 section on timeline, produce to MP4; repeat for remaining sections; combine the 5 MP4s into a composite project, and produce

does that work?

I've seen this issue on many large, overly complex project; breaking them down as described above always solves the problem for me
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Tony Tyner

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I will give it a try!
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Tony Tyner

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I did a test on about 1/4 of the job and it seems to be working great. I really appreciate your help!!  Just got a new computer. Any suggestion on how to improve it'speed. etc.?

Tony
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Fred Grover, Champion

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You did not give the computer specs you currently have. Can you list them here. What Operating System etc. is it? You could try upgrading the Memory to it's maximum capacity. Just a suggestion. But, if your hard drive is low on space or you have a slower CPU it can affect the speed too. Let us know. I am sure kayakman will also have a suggestion too.
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Tony Tyner

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OK. Not very good at hardware stuff. Is this what you mean?
CyberPower PC
Processor: AMD FX - 4300 Quad-Core Processor    3.80 GHz
RAM: 8.00 GB (4.00) GB usable
System type: 64-bit

Thanks

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kayakman, Champion

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regarding computer speed and screencasting with Camtasia Studio ...

if possible, use [or get/upgrade to] a solid sate drive for your system [C] drive

designate temp file locations [Recorder and Editor] to be on the system drive [not external HD or network, etc]

when screencasting demanding projects, don't be doing anything else on system, especially if it requires lots of file transfers

regarding optimizing Camtasia Studio performance ...

keep projects short, especially if they get complicated with lots of edits and timeline objects; use the Library to hold project sections; make interim productions to simplify a project and use that output to continue editing

the Library can substantially leverage Camtasia's power; these 13 Library tutorials might be helpful ... 

http://www.screencast.com/t/22PyVrhGvl

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