Shot a short with two Sony EX3s and audio using Sound Devices.
Media looks clean no real issues.
In FCPX using multi-cam, camera B tends to be a few frames off almost a quarter of a second off.
I can eyeball thanks to the clapper but honestly why isnt this working?
Works fine using Sync but curious as to what is up with the Multi-cam clip option?
Its def something to do with one of the Cam clips cause even with external audio out of the mix, it just doesnt work.
Have you checked the files with MediaInfo or a similar file info disclosure tool to see if both cameras had all the settings consistent? Typically, sync issues come when the time base of two streams are different. It's also possible that your system is having problems keeping up with the streams. Whats your import codec? Did you let X do a ProRes transcode? Did you transcode to Proxy and try that?
Those are where I'd look first.
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Yes to most of the questions.
Ive tried all options at sync point.
I also checked the footage info and both are same format and framerate.
Only diff is that one starts later than the other.
Like I said, works great using the Sync option but not so good using Multi-Cam.
Ive never had this issue before with other cameras, just this EX-3 project is killing me.
The original NLE was FCP7.
Editor was eyeballing the audio to the clips.
I got tired of waiting so I took the original sources and started a new project in FCPX.
Since Ive had perfect success with Multi-Cam before, I thought I was going to power through and have it all ready in FCPX.
No TC was used in this project so I had to use audio sync.
Which baffles me cause Sync option is bang on with the same clips.
Its not a deal breaker.
I think the originator will have to suck it up and finish in FCP7.
Ive been using 7toX to sync audio after final edits.
A pain to deal with and the works well if we both edit from zero to end.
A lot of copy and paste at specific time frames :P
[Eric Santiago]"No TC was used in this project so I had to use audio sync.
Which baffles me cause Sync option is bang on with the same clips."
I do think this problem could be solved with a little investigation.
I would doubt (and I could be wrong) that FCPX uses a different audio sync engine when creating synchronized clips vs multi clips.
What is different with multi clips is the amount of metadata and sorting that can aid in the sync and organization process. That is to say, what FCPX can use to sync, and then how it subsequently arranges the clips and angles, including the container format/frame of the multiclip itself, as well as a starting timecode. There are a lot more variables than a synchronized clip.
You can also simply move the clips back in to sync in the angle editor at any time, which might be handy if everything is only a few frames off.
If you aren't interested, that's cool, and maybe you found a bug, which would be good to know about as well.
If you are up for it, I'd like to see what sync settings you are using specifically.
[Michael Sanders]"This is why you should use Timecode! It solves all these problems.. "
It can, but it doesn't solve it if the tc is off.
On the last shoot that was handed over, supposedly, the tc was jammed. I told FCPX to sync by tc, and it did. Everything was off by a few frames. I resynced using audio, and everything matched perfectly.
Okay revisiting my post after a full feature shoot with my Scarlet.
First off, the whole movie was shot without jam sync (out of my control here) and used a scratch mic on the Scarlet and a Sound Devices 744T.
Ive convinced the post people that I have FCPX under control using Audio Sync so I took the challenge of prepping the files.
I have 13 days of shooting and got through day 1 to 7 as well as 11 with maybe a 98% success rate on sync.
Now I dont mind the 2% as far as manually syncing but for some odd reason day 8 has been a total mess in regards to sync.
I got 12 clips and gave up to write this.
I rebooted the system a few times and even went back to older projects and they seem to sync up fine.
But this set of files on day 8 has me stumped.
Checked the audio on both scratch and SD and found nothing odd in regards to file format and audio levels.
Anyone experience this?