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Re: Should tapes from 2 digital cams of the same event be exactly sync'd?

Posted by Fletch on 03/24/06 20:30

James wrote On 03/23/06 20:49,:
> You may have seen my post not long ago about running sound of a house PA
> board into a consumer camcorder to tape a friend's live performance.
>
> Since then, a new wrinkle has appeared. Someone is lending my friend a Canon
> XL1S, which I'm now scrambling to familiarize myself with before her gig
> tomorrow night - has adjustable record levels, XLR in's, etc.. Have never
> used a pro cam like this before, but there's enough commonality with my
> Digital8 that I'm not utterly lost in the woods and will be experimenting
> with it and studying the manual between now and then.
>
> What I thought I'd do in addition is run my Sony Digital 8 at another
> vantage point to have a second shot to go to when doing an edit of her
> performance. I'll be using the sound off the Canon obviously since it will
> be right off the board, though if feasible, might mix in some ambient sound
> off the Sony Digital 8 as well.
>
> I know that with 2 consumer analog anything - VCR's, Cams, tape decks -
> running at the same time, it's guaranteed that the tapes are going to be off
> from each other and not be in exact lock step. Is this the same with Digital
> cams or is the fact that they're digital going to mean they're going to
> track precisely the same way? I.e., when I get done, should I be able to
> load the contents off the digital tapes onto a computer and once some common
> point is aligned, they should both be in sync by default or no? I suppose I
> could manually shove the footage around to get it close enough for short
> periods but it would be a whole lot easier to just be able to transition
> from one to the other without all the jury-rigging.
>
> Is there some way to *make* them be in lock step? Wondering if there might
> be some way to have the one cam control them both while still being able to
> use the mics on the consumer Digital8. The only disadvantage being that if
> they have to be in close physical proximity, I won't get as great a variety
> of shot - i.e., one from basically straight ahead, one from a completely
> different angle though I could still do some transitions from near to far.
>
> Thanks for all input.
>
>

If I recall the XL1s has SMPTE onboard. So that should be your primary reference. The other, if you
import them to a PC/Mac based editor later, should not be hard to slip and slide into sync at all.

Use the onboard audio of the XL1s as a reference, too, if you are recording the audio from a
different source, such as a multi-track. If you have a DA-88 with sync card, you can link the deck
and XL1s up and they'll track together.

I'm just getting into video myself, so my recommendations may contain flaws.

--Fletch

 

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