DCP sound sync issues

Anything and everything to do with DCP-o-matic.
Sunburrows
Posts: 1
Joined: Mon Apr 15, 2024 6:44 pm

DCP sound sync issues

Post by Sunburrows »

DCP sound sync issues

Creating a DCP has been such a headache. Currently using DCP-O-Matic and no matter how perfectly in sync the master file is, the sound ends up being a hair out of sync (late) during the test screening. It's almost unnoticeable to the video people but as an audio person it's driving me nuts. What am I missing here? I thought DCP-O-Matic was supposed to auto-adjust the video and audio together during the process?

Any tips?
Thanks in advance!
carl
Site Admin
Posts: 2548
Joined: Thu Nov 14, 2013 2:53 pm

Re: DCP sound sync issues

Post by carl »

Hi,

Is the sync consistently late, or does it change during the film?

Did you run a test card / reference DCP to check the sync where you are sitting in the auditorium?

Best,
Carl
Carsten
Posts: 2804
Joined: Tue Apr 15, 2014 9:11 pm
Location: Germany

Re: DCP sound sync issues

Post by Carsten »

Can you tell us more about your workflow?

Keep in mind that sync needs to be adjusted in the cinema processor, and while it SHOULD be okay, it may be that it is off. In large auditoriums, it is also debatable to which row/distance the sync should be referenced to.