FORUMS: list search recent posts

Randomly dropping frames

COW Forums : Apple Final Cut Pro Legacy

<< PREVIOUS   •   FAQ   •   VIEW ALL   •   PRINT   •   NEXT >>
Brian Laschober
Randomly dropping frames
on Feb 21, 2012 at 10:40:27 pm

I am experiencing random dropped frames; this occurs while playing in the timeline and edit to tape.
By random, I mean, I can play sequences and edit to tapes for hours without problems; then the same sequence will throw up drop frames every few minutes, then go back to no dropped frames.
I have tried turning off mirroring to desktop while editing to tape and turning off External Video while editing; neither seem to make a difference.
I am playing in Safe RT, High-Playback Video Quality, and Full-Playback Frame Rate.
I am working in a ProRes422 1920x1080 29.97 sequence with a mixture of ProRes422, ProRes444, and XDCAM 422 1080i 50Mb, my sequences have a TRT of 00;30;40;00.
For troubleshooting I have tried all ProRes422 & ProRes444 footage in a ProRes422 sequence, and I did not notice a difference.
Has anyone else ran into this kind of problem with the below versions and cards?

MacPro 2x3.2GHz quad
8GB ram
GeForce 8800GT
FCP 7.0.3
QT 10.0
Kona3 - 10.1 NDD
Connected to SAN with Read/Write speeds in the 400-500MB/sec (my sequences are pulling ~30MB/sec)

Return to posts index

Michael Gissing
Re: Randomly dropping frames
on Feb 21, 2012 at 10:54:18 pm

Has this started to happen recently? The 10.1 drivers for the Kona are mostly for AVID users and it might be worth trying the previous driver. The other thing I spot is the NVIDIA card and 10.6.8 . FCP is optimised for ATI cards but can work with NVIDIA. From memory there were some posts about needing newer drivers for NVIDIA cards with 10.6.8 . This OS upgrade was purely for the Apple apps store and FCPX so it is not an OS upgrade that is helpful for a legacy FCS3 system and particularly for those not using ATI cards.

So check the graphics cards drivers first and then also try an earlier AJA driver set.

Return to posts index

<< PREVIOUS   •   VIEW ALL   •   PRINT   •   NEXT >>
© 2018 All Rights Reserved