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Avid multicamera editing
Hi everyone
Im hoping someone can shed some lights on a problem im having with avid mutlic cam editing.1)Ive 3 clips (all different tc) which Im laying on the timeline and syncing up buy audio or visual cue
2) I go through each clip and at the head of the timeline, match frame to call up the source footage and mark in
3) I highlight all clips required in the bin and create group based on in mark
4) I create a new sequence, put the group in play mon and splice into seq
5) I select multicam operation and play and vision mix away using the M1 etc keysBUT im finding that theres a number of seconds of black at the head of the timeline i never put there, AND some of the footage is preceeded by black and then plays.
Surely the group seq can be made to start ALL cameras from an in point based on a timeline sync?Any ideas – Im going round and round getting nowhere
Peter -
15 Replies
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That’s becuase the source clips are not of the same duration and they all don’t start at the same time based on the sync reference between them. Just trim out at the black at the head of the sequence. I wouldn’t worry about the black in the source.
Michael
Michael Phillips
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Hi and thanks for the reply
There isnt any black at the head od the dource clips, and yes they are of different length (but they would be.
What can i do to fix the sync relationship between the clips. The only place i can sync them is on the timeline, then match frame and mark an in point, but that doesnt seem to do it as they each start not together in the grouped clip to be vision mixed but staggered.Peter
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Try this:
Put an in point on your clips at the same place (cymbal hit, a speaker blinking, a camera flash).
Go to clip-group clips (cntrl + shift + g) and select ‘in point’.
Your clips are grouped – load the grouped clips into your source monitor (forget about your source clips – you don’t need to do anything else with them). Lay in your master clip. I usuall select the one with the best audio (there is a pull down menu at the top of the source monitor which allows you to select the audio source, as well as whether to use audio-follow-video).
Go to multicam (shift+control+m). Keep in mind you can only play all sources if you digitized your footage in an ‘m’ resolution. You can still multicam at higher resolution, but you can’t play your source realtime. At least that’s the Avid line. I’ve managed to get DV25 to play in 3 streams (2 source and the record monitor), but its glitchy and prone to crashing the system.
With this method, you don’t need to match frame anything. When you load your multicam sequence and enter into multicam mode, your grouped clips will come in as well. Once you get the hang of it, you’ll wonder why you don’t shoot multiple cameras all the time.
HTH,
Jon
“Jamming our heads full of figures and angles
And telling us stuff that we already know”Willie The Wandering Gypsy & Me
Billy Joe Shaver -
HI Jon
Thanks for that. Your reply has put me on the right track.
Seems that I have to accept that Avid places the FULL clip (from the start of the earliest source tc on the timeline, and then plays the second clip in the correct time in multicam, so all i need to do is trim off the extra at the head. That works ok for meHow do you cope with the fact that a long camera shoot may well have tc breaks or tape changes. These all need syncing up on the timeline as far as i can see before you vision mix the whole lot in a pass.
Im keen to get my head round this as i agree its a good feature, but seems a little iffy to me at the moment.
Peter -
I’m doing my first multi-cam on Avid so no expert here, but it seems that once there is a break in recording at all, you would then need to do another “grouping”.
Mark
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Avid isn’t “adding black at the beginning, it showing you the black on that camera that aligns with video on another camera.
If you cut the multicam in and you see black at the head, try switching through the cameras and I bet you find one with video or audio there. It just isn’t the one that defaults as the camera that shows when you first cut the clip in.
Terence Curren
http://www.alphadogs.tv
http://www.digitalservicestation.com
Burbank,Ca -
Hi
so is there no way of marking up clips with an in point in the source monitor and have avid group them for multicam from that point ( a point of use) an not group from an aribitary moment the cameraman started rolling or the arbitary moment the capture started?And how do you cope with tape changes etc.
Peter -
Huh?
Mark in points on each clip wherever you want. Say a slate clap for instance. Then when you go to group them select “by in point” as opposed to by TC. It’s that easy.
Terence Curren
http://www.alphadogs.tv
http://www.digitalservicestation.com
Burbank,Ca -
Hi
I am doing exactly that but as there is unwanted media before the action moment on all cameras, although the avid does sync them in the group successfully, it lays down loads of unwanted media on the timeline which is not required. I then have to trim this off.
Thats why i ask if it cant create the group that SRARTS with the in pointPeter
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The inpoint becomes the sync point, not the start of the group.
The start of the group would be the start of the clip with the most handle PRIOR to the inpoint.
If you have a clip that has three minutes of video or audio or whatever, prior to the inpoint, then the entire group is going to start three minutes before the inpoint.
If you truly have nothing before the inpoint on ANY of the clips, then something is wrong.
Terence Curren
http://www.alphadogs.tv
http://www.digitalservicestation.com
Burbank,Ca
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