Aligning two audio tracks without snapping to timeline

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  • Updated 7 months ago
This is a variant of a question I have asked previously.  (https://feedback.techsmith.com/techsmith/topics/sync-two-audio-tracks)

I have audio from two different sources.  I am trying to align the two audio tracks on the timeline.  Unfortunately, when I try to align them, when i shift one left or right, it is snapping to the ruler.  After looking around, it appeared that the solution was to uncheck the option "View --> enable timeline snapping".  But it seems moving left or right still snaps to the ruler, so i can't align the tracks.

What am I missing?  Alternatively, is there a way to change the granularity on the ruler?  The two tracks are significantly off, and I could eyeball them close enough if it stopped snapping.
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Paul Sochan

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Posted 7 months ago

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bill.raymond

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I'm looking forward to seeing if someone has a good answer, but my trick is to just zoom in on the timeline a LOT and then the snapping is not as aggressive. I hope that helps.
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Stephen Wagner, Employee

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I am guessing that when you say 'snapping to the ruler' you are referring to frame boundaries.  In Camtasia the smallest unit of time we support is one frame.  If your frame rate is 30 frames per second, then one frame is one thirtieth of a second, and that is the smallest unit of time that you can move a piece of media.  Unfortunately there is no real work around for this.   You could up the frame rate to 60 fps, so you can get the audio a little bit closer, but we do not support sub frame audio editing.

-Stephen
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Paul Sochan

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thanks for the quick response.  that brings me back to my request to have an automatic synch feature similar to Adobe Elements Pro (see my post referenced above).  I have a cleaner audio source, but synching the audio and video leaves the two sources slightly out of synch.  The result is kind of distracting, so i am now sticking with my inferior audio source.
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bill.raymond

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Hmmm.. I think I understand what you are talking about. Am I correct in saying you are cutting out unwanted audio (like awkward silences, umms, and ahhs, etc.)? If so, I wonder how you are doing that. Use COMMAND+SHIFT+X to do that kind of editing so all the tracks shift left. I'm not sure if that helps, but want to make sure it isn't something easy :-)
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Paul Sochan

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well i'm starting out simply wanting to perfectly align two audio tracks.  I used the "clap" trick to get a visual spike in sound.  But i can't perfectly line that up.
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bill.raymond

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Maybe go to View->Enable Timeline Snapping and turn that off. Should help. Otherwise, use my zoom trick (attached).
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bill.raymond

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And by "enable timeline snapping", I mean turn it off.
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Paul Sochan

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Yeah, i turned off that option.  and I zoomed in all the way.  Unfortunately, the audio is still mis-synched a tiny notch which i find distracting.  I've used the visual line up technique before.  It worked ok when it was voice over a screen capture.  But when i can see sombody's lips moving and it doesn't perfectly match the sound, it is distracting.
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bill.raymond

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I hear you and I can't help you much more than how I have so far. I think you previously posted that you use Zoom (or some other recording tool?) and if that is the case, you can always stop recording after everyone is online, then start recording again as you start so there is perfect alignment. WHen you record a Zoom session, it only starts recording people as they come online, forcing you to align afterward, but by stopping and starting, you get a new set of files that will align perfectly. Hope that helps.
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Paul Sochan

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thanks for the help bill.  In this case, I was trying to line up a recording from a video camera with an audio recording i have from a separate device.  i think i have done everything that i can.
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davemillman

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Paul,

Read Stephen Wagner's post above. Camtasia snaps to 1/30th of a second frames. It is possible that your camera audio and the audio from the other device are out of sync by that much. But when that happens to me, I never see the lips move out of sync. It's too short of a difference (about 1/60th of a second one direction or the other). 

Can you zoom all the way into the clap on your timeline and send us a screen capture of the out-of-sync claps?