Convert timeline value to seconds and milliseconds

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  • Updated 10 months ago
How do I convert timeline values to seconds and milliseconds?

For instance, I see a timeline value of 0:01:02:15

I think the units are hours:minutes:seconds:thirtieths of a second

So the value is 1 minute + 2 seconds + 15/30 of a second

Which is 62.5 seconds.

Is this right? Is the last number thirtieths of a second?

Thanks,
Jim Andrews
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Jim Andrews

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Posted 10 months ago

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Leif, Employee

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Jim, you are correct.  The current release of Camtasia only supports editing  at 30 frames per second (fps).  The timeline values indicate hours:minutes:seconds;frames.  The start of the timeline is at 0:00:00;00.  But the first frame is visible at this time. So the frame is a bit more like an offset rather than the actual frame number.  If you step through the timeline frame by frame ('.' or ',' to step back a frame), you'll notice the frame value change from 0 to 29.  Those are the 30 frames of the first second of the video. Step one more frame and you see the time change to 0:00:01;00.  At this point you are looking at the first frame of the next second of video.  If you were to export this one second section of the video, it would be one second long and that last frame you were looking at would not be included in the output, just the previous frame for it's full duration.  So if you were to put the playhead at 0:00:00;15, you are actually previewing frame 16 in the video, but that frame would not be in the export if you exported just that first portion of the video.  Your exported video would be1/2 of a second (15 / frame rate - in the current release of Camtasia - 30 fps, so 15 / 30) and would contain the first 15 frames of of the video.
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Jim Andrews

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Thanks very much, Leif!