Quicktime Move Lag

[ssummerford]

Hi

Has anyone had this problem You're working on a project with a QT movie, which plays fine at normal speed and is locked to transport, frame rate is right, and for some reason, a certain chunk of it plays everything in slow motion? It was working fine, then after some back/fwd scrubbing it only plays back at like 1/2 speed--everything is slowed down. I have to close my project to get it to come back to normal.

Any thoughts?

Thanks!

Steve

[williemyers]

Steve,
what kind of audio interface are you using? If it's a Digi product (002, mBox, etc.) and it has installed the most recent DigiCoreAudio driver, this driver will cause QT to behave strangely when locked to DP.
just a thought...

[MIDI Life Crisis]

Also, are you playing back in the DP movie window or on an external monitor via FW?

[ssummerford]

Actually, it is a DIGI002r. Hmmm...any suggestions on what to do about that? I've never heard of such an issue. I'm running DP 7 in Leopard, DIGI002r with the PT 7.4 drivers (I haven't paid to upgrade PT6.9 to run with Leopard, but am using the free hardware update. I'm running QT in a DP session locked to transport, not on an external FW video.

Am I essentially screwed with the DIGI interface?

Thanks!

Steve

[williemyers]

Am I essentially screwed with the DIGI interface?
Thanks!
Steve

maybe yes, maybe no!
In my case, here's how I got around it.
I have my 002R running in to a Mackie mixer. In the past, I would have set the Mac's System Audio (SystemPrefs>Sound>Output) to run thru the 002R. But with this CoreAudio glitch, the workaround is to change SystemPrefs>Sound>Output from Digi002 to BuiltInAudio, and then run an audio cable out of the back of the Mac and in to the Mackie.
Then, when I open a QT movie in DP, there's no delay/glitch in playing the movie.
You might want to give it a try?