original MP4 has perfect audio, but distorting in Camtasia

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  • Updated 1 year ago
Using Camtasia 8.4 in Windows 7, and a new user.
Making a music youtube from a Vixia mp4 with external microphone

The original mp4 sounds pristine on Sennheiser pro headphones as well as routine PC speakers, recording of just a bass clarinet alone. The audio within Camtasia and saved out to youtube adds distortion at the high and low frequencies, and even when the amplitude isn't high, so it's not simply too hot.

If it helps, here's the unpublished URL; the problem is more pronounced a few minutes in than at the start. Thanks !!
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Daniel Dorff

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Posted 5 years ago

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kayakman, Champion

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are you using newest version 8.4.2.?
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Daniel Dorff

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I had been using 8.4.0 and just upgraded to 8.4.2 at your suggestion. It does seem clearer. However, should I rebuild the timeline from scratch in 8.4.2, or will it read the existing timeline optimally already. I'm about to produce it to youtube. Thanks !!
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kayakman, Champion

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it will read the original project's timeline just fine

to be safe, after loading the project in 8.4.2., un-select any noise reduction [if originally applied]
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Brian Urbanek

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Hi, I am using 8.4.3 and having the same issue.  Is there anything that can be done?
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Joe Morgan

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I have pretty good results by using a high kbps setting for the audio when producing. You can access theses settings when you do a Custom Production. See Image below.

Regards, Joe

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Brian Urbanek

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Hi Joe,  Thanks for the recommendation but the audio is still breaking.  Is there anyway I can go back to 8.4.2, anyone?  I want to go back to 8.4.2 because I know for a fact I did not have this problem with 8.4.2.  Thanks.
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Joe Morgan

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Yes, it easy to go back to another version.

You can download and install a new or an older version from this link.

Selecting the "Free Trial" Icon will download the newest version.

 http://www.techsmith.com/download.html

 

If you can't locate your Activation Key use this site for that.

You need to Submit your e-mail address to this Web Page to get your Key.

 http://www.techsmith.com/support/lostkey.asp

 Regards, Joe

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Brian Urbanek

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Reinstalling back to 8.4.2 (I had the exe in my downloads) did not work either.  Still all MP4 audio gets garbled upon import.  Anyone your thoughts on this would be appreciated.  Note: I have an Dell Inspiron 6430, noticed that the Intel Audio driver was old and updated to the latest version on the dell website.  Same problem. Techsmith please fix this!
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Fred Grover, Champion

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What are your initial audio and video(Screen Resolution) settings before recording and when producing your video ? Also, what format are you producing to and the settings within that production. More information on how you are doing this and what mice you are using might or might not help. Sorry to hear of your problem(s) on this issue. If they continue I would highly recommend you contact TechSmith Support from the link below:

http://support.techsmith.com/

It is free support just to let you know. Thanks for posting and please post back what you can and if you contact TechSmith Support let us know what they had to say. Have a great day.
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Lisa Larson-Kelley

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I'm having the same problem, using 8.4.3, considering upgrading to 8.4.2 but doesn't seem like this is going to help? Help, Camtasia support!!!
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Joe Morgan

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Tech Support can help. But you should contact them yourself.

This is a free service!

Just fill out a SUPPORT TICKET at.

 https://support.techsmith.com/anonymous_requests/new

  Or you could Give the Tech Support Team a call at 888.750.0686 (or +1.517.381.2300 ext. 771 internationally)--they are available from 8 am - 7 pm EST.

Regards, Joe...    {:> )

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Lisa Larson-Kelley

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Did a little more digging, and found someone who worked out a solution:

Thank you so much @Brian Urbanek -- exporting audio out of audacity at 44100 128k MP3 solved the distortion issue. FYI, Camtasia support -- this need to be documented!!
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Lisa Larson-Kelley

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And thank you for the quick advice, Joe!
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Globus

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Same problem here. Export your audio from your daw to 44khz and 16bit . Very annoying problem . Fix it NOW !
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mark_johnson_gb

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Here is a solution to the above problem.

I experienced the same problem. I had a MP4 video which 'audio sample rate' was 48 KHz. To check the audio rate of your file, use Windows Explorer, righ click on the file and open Properties. Go to tab Details and look down for the "Audio Sample Rate".


When importing the MP4 video into Camtasia 8.6.0, the audio sample rate is automatically reduced to 44 KHz. Because of that the audio was distorted and that was quite obvious on the "S" shounds in the words.

What I did was to open the MP4 video in the FREE Microsoft Movie Maker and chose "Save Movie" using "Create Custom Settings" where I specified Audio Format: "160 kpbs, 44.1 KHZ".

I imported the converted to 44 KHz 'audio sampel rate' file into Camtasia and the sound quality was as good as the original 48 KHz MP4 file.

Hope this helps.
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David Harris

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This worked perfectly for me, thanks for sharing
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Paul Middlin, Employee

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Hi, we think we have fixed this problem with our latest release, version 9. Take advantage of the trial to check it out and see if the audio sounds better without having to use audacity?
https://www.techsmith.com/camtasia.html
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gareth.goodman

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I am using v9.0.5 (Build 2021) and I get the same problem, the source video has perfect sound, after about 8 minutes or so it starts to get garbled in the Camtasia app (Win 10)
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Paul Middlin, Employee

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This is probably a different issue than the one posted about 2 years ago here; I think it might be best to try opening a tech support case so they can look at what's interesting on your machine?
https://support.techsmith.com