AJA Kona 3 Sync Problems

[Doug Beal]

It’s possible your monitor is introducing a delay. You could easily have 3 frames there
how are you monitoring audio…Kona thru D>A
If the monitor has a disembedded audio output try monitoring that. It’ll should be the same timing as the display.
we monitor the audio off the flanders (FSI) disembedder to ensure sync.

Doug Beal
Editor / Engineer
Rock Creative Images
Nashville TN

[David Penfold]

Thanks for the response,

The monitor we are using is a JVC HDSDI glass monitor which has negligible latency so I doubt whether this is the cause. The really annoying thing is the randomness of the problem!

I should have pointed out on my original post that the problem only exists on the monitoring – all exports to quicktime are fine.

[Tom Bucknall]

We used to have this problem a lot and eventually identified it as the wrong driver. Installing the NDD driver it.

[Tom Bucknall]

Apologies for the slight gibberish;

We used to have this problem a lot and eventually identified it as the wrong driver, installing the NDD driver solved it.

[Peter Wiggins]

David,

I have worked on many Kona3 systems with many different configurations and I’ve nearly always had lipsync problems. Agreed, on export everything looks fine though. Have learnt to live with it and tell clients not to worry about it.

Try refreshing the output device as that seems to help.

Also we have had huge problems with the Kona card & animation codec movies locking up systems with the BBOD.

Peter

[Bob Zelin]

fcp>system settings> playback> change playback offset from 4 to 0

Bob Zelin

[John Fishback]

Gaps between clips in sequence not filled with slug can cause loss of sync.

John

MacPro 8-core 2.8GHz 8 GB RAM OS 10.5.8 QT7.6.4 Kona 3 Dual Cinema 23 ATI Radeon HD 3870, 24″ TV-Logic Monitor, ATTO ExpressSAS R380 RAID Adapter, PDE enclosure with 8-drive 6TB RAID 5
FCS 3 (FCP 7.0.2, Motion 4.0.2, Comp 3.5.2, DVDSP 4.2.2, Color 1.5.2)

Pro Tools HD w SYNC IO & 192 Digital I/O, Yamaha DM1000, Millennia Media HV-3C, Neumann U87, Schoeps Mk41 mics, Genelec Monitors, PrimaLT ISDN