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A real hard nut to crack!

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Sascha Engel
A real hard nut to crack!
on Aug 28, 2013 at 2:00:50 pm

Most bizarre Problem I ever encountered on FCP: A friend of mine is editing his Docu in FCP, now he got the music back from the Sound Designer, dropped the WAV on the TL and the beginning is sync, but in the cause of the film length of 12min, it slowly runs out of sync.
On the sound editors machine all was synced up.
So, we checked on my system, hooked up his external HD and opened the project on my Mac. The same project with the same source files suddenly is sync from beginning till the end.
So, I saved the project on my machine with Save As and opened that project again on his computer and:Again, it starts to run off sync during the film - about 8 frames.

Any idea what this can be?


Greetings,

Sascha Engel
TIME BANDITZ Productions
http://www.youtube.com/taikang


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Mark Suszko
Re: A real hard nut to crack!
on Aug 28, 2013 at 2:48:03 pm

Final Cut prefers AIFF files to WAV.


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Sascha Engel
Re: A real hard nut to crack!
on Aug 28, 2013 at 3:24:19 pm

Can't be the reason. For one we also tried with AIFF. and second: the exact same project played just fine on another MAC with FCP.

Sascha Engel
TIME BANDITZ Productions
http://www.youtube.com/taikang


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Mark Suszko
Re: A real hard nut to crack!
on Aug 28, 2013 at 3:25:23 pm

audio sample rates in agreement?


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Rainer Wirth
Re: A real hard nut to crack!
on Aug 28, 2013 at 3:56:16 pm

How do you monitor the stuff?

Through a breakout box or directly from the computer? Some breakout boxes and tape decks need sync such as a blackburst signal.

cheers

Rainer

factstory
Rainer Wirth
phone_0049-177-2156086
Mac pro 8core
Adobe,FCP,Avid
several raid systems


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Sascha Engel
Re: A real hard nut to crack!
on Aug 28, 2013 at 3:59:00 pm

On both computers, we watched the material over the DVI connected computer monitor, not over a broadcast screen.

Sascha Engel
TIME BANDITZ Productions
http://www.youtube.com/taikang


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Sascha Engel
Re: A real hard nut to crack!
on Aug 28, 2013 at 3:58:07 pm

Yes, on both computers, same sample rates.

Sascha Engel
TIME BANDITZ Productions
http://www.youtube.com/taikang


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Rainer Wirth
Re: A real hard nut to crack!
on Aug 28, 2013 at 4:05:24 pm

Settings inside FCP?
For example frame settings?

Cheers

Rainer

factstory
Rainer Wirth
phone_0049-177-2156086
Mac pro 8core
Adobe,FCP,Avid
several raid systems


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Sascha Engel
Re: A real hard nut to crack!
on Aug 28, 2013 at 4:35:15 pm

What do you mean? On both computers we used the same project and therefor the same project settings: apple pro res, HD, progressive, 25p.

Sascha Engel
TIME BANDITZ Productions
http://www.youtube.com/taikang


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Mark Suszko
Re: A real hard nut to crack!
on Aug 28, 2013 at 4:44:23 pm

Somewhere that's too obvious to notice, a setting is different and causing the drift. I'll bet a virtual donut on it.


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Shane Ross
Re: A real hard nut to crack!
on Aug 28, 2013 at 4:44:56 pm

Trash preferences on the machine where sync is an issue.

Shane
Little Frog Post
Read my blog, Little Frog in High Def


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Sascha Engel
Re: A real hard nut to crack!
on Aug 28, 2013 at 5:22:14 pm

Also done already: trashed plist and preference files. Both.

Sascha Engel
TIME BANDITZ Productions
http://www.youtube.com/taikang


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Nick Meyers
Re: A real hard nut to crack!
on Aug 29, 2013 at 4:15:56 pm

Double check your sequence preset in AV settings,
.
If its a different frame rate it can trow imported audio ou of sync.


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Sascha Engel
Re: A real hard nut to crack!
on Aug 30, 2013 at 7:29:12 pm

It's crazy and Spooky - I really checked everything - all system settings, Preferences, everything.
But it's still out of sync. But on the other machine in our shop it's fine, plus I imported WAV from Sound editor and Final Offline with Sound from FCP, imported it in Ableton Live - it's perfectly sync and how it should be.
There's a ghost in the machine!

Somebody knows a good FCP Exorcist?

Sascha Engel
TIME BANDITZ Productions
http://www.youtube.com/taikang


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Rafael Amador
Re: A real hard nut to crack!
on Aug 31, 2013 at 12:52:15 pm

Have you tried the "Matt Lyon's Fix"?
http://library.creativecow.net/articles/lyon_matt/
rafael


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John Moffat
Re: A real hard nut to crack!
on Aug 31, 2013 at 3:41:59 pm

I've had a similar problem once. A project was filmed @ 25fps, edited @ 25fps and mixed at @ 25fps. However when the mix came back it slowly went out of sync even tho the timeline and stems where 25fps.

What it turned out to be was a bug of sorts in FCP. At some point during the edit I had trashed my prefs and never set the default setting back to 25fps - the one that automatically appears when you next boot up FCP after trashing prefs. Now even tho I was editing in a 25fps timeline with a 25fps audio stems FCP had "tagged" them as 29.97 when they were imported (although it still showed up as 25fps in QT) because that was now FCPs default setting.

The solution was to trash my prefs again and also the audio stems FCP had been working with. Then reimporting 'fresh' stems.


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Sascha Engel
Re: A real hard nut to crack!
on Aug 31, 2013 at 4:35:57 pm

I basically tried all the mentioned methods, but nada.
What worked in the end for me: I took the WAV of the Sound Designer, took it to another machine in the shop (cause on the machine in question, we tried it already), and used QT7 to convert the file to AIFF.
I took this file back to the problem computer, and all over sudden this converted file was not out of sync anymore.
I still have no idea, what the mistake actually was, but I'm happy it works again.


Greetings,

Sascha Engel
TIME BANDITZ Productions
http://www.youtube.com/taikang


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