I recorded a video using camera mics and a separate recording device, and I’m trying to edit them together, but the separate audio track “frames” do not coincide with the frames on camera.
I can only move the separate audio track a fraction of a frame too early or a fraction of a frame too late (see image).
Is there a way to position the separate audio track independently of the camera frames?
Thanks!
You can “position” them independently, but that’s clearly not what you mean here - in kdenlive you can only set the start of an audio track (or any other type of clip or transition) to positions that are multiples of the project frame rate.
In most cases, having audio misaligned by at most that amount isn’t noticeable, and is less than the (variable, and generally unpredictable) error in alignment that will occur in most playback devices. But if for some reason it really does matter for you to have alignment with audio-sample granularity, then you’ll need to pad or trim the start of the audio file in an audio editor.
This may change in the future, but probably not Soon.
Thanks, I’ll give that a try.
BTW - How is this typically dealt with by kdenlive users? Presumably others encounter this?
If you do, then the other thing to watch for is the alignment at the end of the clips too.
If the recording devices don’t share a clock signal, then the number of samples in a given time period will vary between them, and for a long enough recording, if synchronisation really is that critical, you’ll need to drop or pad samples to keep them that closely synchronised.
As I noted above, typically the error is imperceptible, or the playback device will desynchronise the audio and video by more than this ‘error’ anyway. But the question does come up occasionally, and if you search this forum you’ll find related discussions.
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