Camtasia 9 Windows Audio and Timeline clip still get out of Sync

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I had this issue with Studio Version 8 and the 'accepted' solution at the time (best available) was to wait for the next release; my understanding was that it was a bug, and was being resolved. Now with the dawn of Studio 9, I still experience the same issues.

The longer the recording, and the more splices and segments you clip out, the worse it gets. Essentially the audio and visual timeline no longer line up quite right, making it way less than professional. I'm referring to videos that are only about 15 or so minutes long MAX. I don't see that as a terribly long recording and I don't see making shorter clips a really viable solution.

Is there any new discussion about this? I scoured the boards with no luck.
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Nadia Munro

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Posted 2 years ago

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Robert R., Online Community Admin

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Hello Nadia;

There can be any number of reasons for a/v sync issues; from problems stemming from resources or drivers, to conflicting hardware to incompatible media properties. Have you opened a Support Ticket and spoken to an agent since updating to Camtasia 9? Do you have that ticket number available so I might look it up and look into your issue?

Are you using Camtasia Recorder files, or imported videos? What type of audio are you capturing (System Audio or a Microphone)? Are you storing your project files or source files on your local hard drive, or are you storing them in a cloud-synced folder (like Dropbox, OneDrive, Google Drive, etc.), flash drive/external hard drive, or a network location? Do you have cloud-based backup services (like Carbonite) backing up the folder that you have your Camtasia project and/or source files stored in? Are you using any MP3 files in your projects?

-Robert
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Nadia Munro

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Hi there Robert,

I actually did not open a ticket for that issue - I just went on the advice/suggestion to others on the community forum for the same issue. I am using Camtasia Recorder files and Camtasia intro clips, etc. I am storing all files on my C drive (my documents). No MP3 files. The only imported/non native file I have is a PNG image that I use in the intro.

The only common/consistent denominator is that the longer the recording (and I mean like 20 or so minutes, not hours), and the more "cuts" I make to the timeline, the worse it gets. The beginning will be fine, but by the end it's out by a couple seconds...which doesn't seem like much but it's really noticeable when the mouse clicks are that out of sync with what's occurring on the screen.

Thanks for the response,
Nadia
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jorlando2001

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I think I might have diagnosed the problem, and I would be interested to see if someone can do an experiment to confirm it.

I have the same problem when I record narration in Audacity and then layer on the images to match it in Camtasia.  But I don't have that when I record a screencast.  The difference, I think, has to do with whether the audio is recorded at a variable or fixed bit rate.  When I save the Audacity audio as an MP3 with a variable bit rate, I have the sync issue, but not when I save it with a fixed bit rate.

Try converting your audio to an Audacity file and save it with a fixed bit rate to see if that works.

John
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Eric Pearson

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5 stars for that response jorlando! Worked like a charm for me and saved my a$$ by allowing me to meet my deadline. It was SO frustrating the way camtasia would drop pieces of my audio..I had half my project done in ver9, and was going to be forced to work the other half in ver8 (which does not have this audio issue for some reason). Fixed bit rate was the fix - (its called 'constant' in my version of Audacity and I lowered the quality to 192 - it was set to very high 320 by default- . Thanks again!
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parfy3c

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I had the same problem using Audacity MP3s wiht a varriable bit rate. Once I re-exported the files with CONSTANT bit rate, it worked great. Whats was odd, was I could use the audio files fine in other video editing software.

Thanks for posting your solution. Worked like a champ for me!
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Alberto Sánchez-Reyes

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Thanks, it worked!
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Nadia Munro

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I only ever use Camtasia - I record audio and screen in sync/real time using the Camtasia recorder. What you are describing sounds like an issue as well but not to my particular problem. I also don't have separate audio/video. It also only ever occurs with longer recordings as the edits become heavier - beginning remains in sync, the end is just slightly off.

Nadia
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kayakman, Champion

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are you capture system audio and mic?
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Nadia Munro

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External mic
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kayakman, Champion

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OK, thanks

I'm running out of ideas here

but maybe try this ...

with the capture clip on timeline, and no edits yet, export all the audio [share menu]

bring the WAV clip back into project, put on timeline, and silence original clip

does that help at all?
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Nadia Munro

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Thanks for your help - I can give it a try. Just seems like a ton of added effort but I will check it out.
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apprendix10

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Hi,
I just wrote a full post on how I solved this, but the page got stucked and did not save it ...
So, briefly, my solution was to change the Clip SPeed - just a few frames, and it has solved the problem. The whole video is in sync now. 
Hope it helps! Good luck!