Audio export/reimport synch problems at

Go Back   DV Info Net > Apple / Mac Post Production Solutions > Final Cut Suite

Final Cut Suite
Discussing the editing of all formats with FCS, FCP, FCE

Thread Tools Search this Thread
Old July 6th, 2008, 05:38 PM   #1
Regular Crew
Join Date: Jul 2006
Location: Los Angeles and San Diego, CA
Posts: 68
Audio export/reimport synch problems

So here's my current problem...

Im working in final cut 6.0.3, and Im exporting the audio as AIFF to hand off to my sound engineer for audio post work. When I re-imported (and thank god I did) just to test if it was going to synch, I was mortified to find that about halfway through the 5 minute scene, the audio was off synch! It seemed to be moving faster than the video.

The timeline has been set at 48khz, and 16 bit. After looking, the half of the audio where we had a sound engineer on set running in to a logic pro suite was recorded at 24 bit. The stuff we recordeddirect into camera was being recorded at 16 bit. So I can see how two different bitrates would change the timing, but I just don't understand why Final cut wouldn't re-render the audio as 16, as per the limitations set by the timeline itself.

I tried exporting only the 24 bit stuff, and only the 16 bit stuff, and reimporting separate from each other, but still, the audio is coming in faster.

I also exported the whole thing as a quicktime movie, and it came out with perfectly synched audio and video. The reasoning being, well, maybe it needs to be flattened into one audio timeline to effectively "forget" that there were ever 24 and 16 bit differences, and we can all live under the happy umbrella of the 16bit quicktime movie export! I import the new quicktime movie, try to re-export only the audio, and again, on import and re-synch, it's out of synch!

What can I do to get this audio into Protools,and have it synch up when it comes back?

All the best,
Nick Harris
Nick Harris is offline   Reply

DV Info Net refers all where-to-buy and where-to-rent questions exclusively to these trusted full line dealers and rental houses...

Professional Video
(800) 833-4801
Portland, OR

Omega Broadcast
(512) 251-7778
Austin, TX

(973) 335-4460
Mountain Lakes, NJ

Abel Cine Tech
(888) 700-4416
N.Y. NY & L.A. CA

(800) 238-8480
Glendale, CA

Precision Camera
(800) 677-1023
Austin, TX

DV Info Net also encourages you to support local businesses and buy from an authorized dealer in your neighborhood.
  You are here: DV Info Net > Apple / Mac Post Production Solutions > Final Cut Suite

Thread Tools Search this Thread
Search this Thread:

Advanced Search



All times are GMT -6. The time now is 03:28 AM.

DV Info Net -- Real Names, Real People, Real Info!
1998-2015 The Digital Video Information Network