Editing video recorded with two cameras

[MI6]

I want to edit some wedding celebrity recorded with two cameras.My question is:
Is any specific rule when editing such video (I mean which audio should I use to avoid audio mismatch...}
Tips and Tricks please.
Regards.

[guns1inger]

I usually do this type of thing in Vegas. I line up both cameras on different timelines, then use the audio to get the two in sync. This may mean splitting the clips if the cameras have been stopped and started throughout. From there I work out which shots are best, when to cut from one to the other etc. The audio is usually sorted out after the basic cut is done. You may find that like the video, you have to mix and match the audio to get the best results as well.

[Rocker_Binding]

Do you combine the video from the two cameras into one video file when you are done? If so how do you do that?

I’ve done the synchronization too. An easy way to do it is to use a blinking light. It’s quick in post-processing

http://www.rockerbinding.com/Synchronizing_Cameras.html

[Cornucopia]

I suggest using an NLE where you can add 2 separate streams/layers to the timeline. If it doesn't have explicit features for syncing multicamera, you can still do it manually by putting both streams onto the timeline, making the upper layer/stream semi-transparent. Then, shift it backward or forward in time to match a MARK (see below). Then change the semi-transparent back to normal and checkerboard your cuts between top & bottom as you see fit. If you want more transition FX, you can then drag the clips in the upper layer DOWN to the lower and then apply the transition FX at each edit mark. Multicam support does make this a LOT easier.

Marks should be Audible & Visible. That's why the Pros use a clapstick, 2-pop (Head & sometimes Tails), strobe flash, etc.

The best way to sync audio would be to use a mixer board and feed the output to BOTH cams, so it's identical. You can then match waveforms. Otherwise, you'll need a very LOUD/BRIGHT TRANSIENT (which is why the above blinking LED light might be ok, although I would be bugged by the repetition myself).

Remember, audio can be synced to the sample (usu. ~1/48000 sec), but video can only be synced to the frame (1/60 sec at best).

Scott