Audio - adjusting at the extreme limits (Windows)

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  • Updated 3 months ago
  • (Edited)
My lecture video setup involves Camtasia add-in to capture the PowerPoint presentation (with computer audio on for sync) and video camera with lapel mic to record the lecturer. Everything works fine until there's a question in the classroom (40 participants in a hall). Until I can find a good boom mic to directly pick up the audience question, I have to play around in editing so that the question can be heard.
Audio can be adjusted in two places. In the Audio Properties on the right side of the screen I can change the gain of the entire audio track. This is useless for me since the primary audio is from the wireless lapel mic and it's excellent.
On the Audio track I can "Edit Audio" by grabbing the green line, and that's where the problems start.
  1. If I grab the green line and shove it to the top, I'd better be darn sure I don't have to grab it again later, because there's almost no way to decrease that line without serious fiddling with other green circles. Once that line is at the top ("500%") you can't grab it again to bring it down (say, after you realize that the lecturer interjected, "Mm-hmm") in the middle of the question.
  2. If you choose "Silence Audio" for a track, I haven't found a way to "Unsilence" again. All control disappears. It's gone.
Until the Camtasia programmers do a serious workover to the Audio editing aspects of the program, what are some workarounds? I've already suggested enriching the Properties on the right panel, so that we can manually input the levels (numerically). I'm sure everybody has had the frustration of trying to re-achieve 100% levels after adding in an Audio Point.
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Muscle Whisperer

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Posted 3 months ago

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Photo of Carol Rainbow

Carol Rainbow

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I have simply split the audio track, for example each side of an audience question, to raise the sound level of that clip.
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Joe Morgan

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There’s a free program that is perfect for this. It’s called a Levelator.http://www.conversationsnetwork.org/levelator

 This program hasn’t been updated since 2012.However, I just installed it in Windows 10 version 1903.

I’ve played around with this program in the past. But I’ve never had a lot of use for it.

 You would simply export your audio as a .wav file out of Camtasia. Drag that file into Levelator and it will take care of everything "Automatically".

 Here is Levelator with the a.wav file positioned directly underneath it. I’m getting ready to drag it into Levelator.



Here the file has been dragged into Levelator. Audio bars start bouncing while the file is processed. It displays progress in percentage as well. The process doesn’t take very long.



Here's what that audio file looks like in Adobe addition Before Processing.



Here's what the New Outputted file looks like an Adobe addition.



And Presto

The new file is saved in the same location as the old one. It is saved with the same name with the exception Output being added to the end of the name.

Regards,Joe
(Edited)
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Joe Morgan

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Plus, if you want to export 1 audio track.
When more than one resides on the timeline.

Hit the Eyeball to Hide the other tracks.
This stops them from being exported.

 
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Ed Covney

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Not sure how big your "hall" is, but could you have questioners, "step-up to the mic"? (In the aisle or?)
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Rick Stone

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In addition to what Ed said, I see this technique used a lot in sessions like this. As a participant, I'm always extremely thankful when the presenter operates this way.

After hearing the question, the presenter pauses briefly and repeats the question aloud so all participants are able to clearly hear it (because the presenter is miked).