Garbled audio - can Camtasia 3 (Mac) really handle two audio sources?

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  • Updated 11 months ago
I'm an educator. I have powerpoint presentations which I use for recording short video lectures. I use an external microphone - Yeti - to record the audio (my voice-over the presentation).

However, here's the problem. In some of my slides, I have embedded videos, which play within the presentation. I record both from the microphone (my voice) and the system audio (to capture best quality audio from the embedded videos). However, the recordings are fine, until I start and stop playing one of the embedded videos. Once I stop the video, anything that is subsequently recorded in the audio is garbled (i.e. my voice-over from the Yeti).

Not sure why this is the case. I just downloaded a trial version of screenflow to see if i would experience the same problem, but I don't!

Any ideas? (Aside from switching to Screenflow!)
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dr.winglam

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Posted 11 months ago

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Paul Middlin, Employee

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Hm, garbled how? Is it just the sound of hearing the same audio being played, slightly out of sync, from both the microphone recording and the system audio? If so, you could do two things:
1. in the future, wear headphones so that the audio does come out of the speakers and back into your microphone
2. For existing recordings, you can mute the microphone for just that section of the video?
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dr.winglam

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Thanks Paul. Garbled as in choppy, unrecognisable audio. I tried your suggestion, and also played around with muting audio tracks in Camtasia to see if it helps. Unfortunately no joy. However, I found a workaround of sorts. Rather than playing the video within powerpoint, I instead add the video as a separate media item into the Camtasia project and do the necessary editing from there. It doesn't solve the original problem but does allow me to continue with my work. Thanks again.

W. 
(Edited)
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Paul Middlin, Employee

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That really is odd. You may want to get ahold of tech support so they can try to work through the problem with you. I'm glad you have a workaround, however it's not normal for your mic audio to break after playing a powerpoint video.
https://support.techsmith.com