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Movie audio out of sync

Posted: Fri Mar 31, 2006 4:14 pm
by kristupes
I recently updated to DP 4.6 and since then I've had issues with the audio from the imported movie. The audio from the movie gets out of sync. The audio is always ahead of the picture. This happens even before I've started writing any music. The movie is running from my internal hard drive. Does anyone know how to fix this? Thanks.

Re: Movie audio out of sync

Posted: Fri Mar 31, 2006 4:31 pm
by chrispick
kristupes wrote:I recently updated to DP 4.6 and since then I've had issues with the audio from the imported movie. The audio from the movie gets out of sync. The audio is always ahead of the picture. This happens even before I've started writing any music. The movie is running from my internal hard drive. Does anyone know how to fix this? Thanks.
Yeah, this is a known thing.

You can either:

1. Copy the audio from the movie into your sequence, then turn down the volume in the movie window. Then, just use the audio-from-sequence for listening and bouncing. It's in sync and will stay in sync throughout the process.

or...

2. Deal with the audio sync difference that occurs from using the movie window audio as playback by minimizing latency as much as possible..

I prefer the first solution. I know that some others who score long-form projects and don't like to wait for the copy-to-sequence function to do its thing prefer the second solution.

I think there's been talk of DP5 possibly correcting this sync-from-movie-window bug, but that's only hearsay really. It'd be nice.

Posted: Mon May 29, 2006 12:34 pm
by studiogreg
Just do a preroll of 1 bar and it should be synch!

Posted: Tue May 30, 2006 7:44 am
by Mr_Clifford
Apparently they've fixed the bug with the DP 5.01 patch. Downloading it right now as I type. Will confirm.

Personally, I like putting the movie's audio on to an audio track, because then I can compress the stuffing out of it and route it to a separate channel on my monitoring mixer.

Posted: Tue May 30, 2006 8:01 am
by Mr_Clifford
Yep, DP5.01 seems to have fixed the problem.

BTW. I'm sure this is the same quirk of QT7 audio that wreaked havoc on users of Digidesign hardware recently (myself included).

Posted: Fri Mar 16, 2007 11:36 am
by jonnyfive
Hi All,

I am working on my first film scoring project and am trying to sync my score with the Video but am having a discrepancy between the imported audio from the QT movie, and the audio track from the video window itself, and like mentioned in this thread the audio in the movie window seems to be early.

The reason I ask is that I have a sync beep, and I need to know which one is correct so my audio maintains its timing with the video. I am assuming that the imported audio is correct without adjustment and the QT movie window audio is early (thats what it looks like), but I want to make sure that I should base my sync beep off the imported audio track and not move that imported track to sync with the movie window audio...

make sense?

So if I copy the sync beep from the imported audio into my sequence the timing should be all good, right?


Thanks in advance for the advice to a novice.
Jonny

PS I'm on a PB g4 1.33 with 10.4.9 and dp 4.6.1 and a presonus firebox

Posted: Fri Mar 16, 2007 6:30 pm
by Mr_Clifford
jonnyfive wrote:So if I copy the sync beep from the imported audio into my sequence the timing should be all good, right?
Use the imported audio from the QT movie. Using the sequence editor you can move the cursor to the sync beep and check that the video window is on the flash (the white frame that goes with the beep). If that's the case then your whole video is synced - if you have to move it (you won't.... hopefully) make sure you set the user timestamp so that it will automatically sync up with any extra cues.

If you have QT Pro, you can open the QT file and save a version without the audio, which saves you having to turn the volume on the video down.

Posted: Fri Mar 16, 2007 8:02 pm
by martian
if you're spitting vid out the firewire port - then read up on setting the playback offset