Region Bug when Doing Stem Mix????

[OVERNIGHT]

Having an awful issue prepping a film for Dolby mix. The studio we mixed in is not the same as the soundstage we're doing the final Dolby session in. We've spotted the film after the mix and everything looks good. There's three of us and we're not idiots. We dump the mix to stems and wierdness ensues. Sounds are starting early mostly... as though the left edge of certain regions are getting dragged out. Seems like it's mostly regions that had very slight fade ins, like they're suddenly 3 seconds long or something. What's also strange is that when we get to the soundstage the mix is as much as 3 frames off on certain reels. Not drift just a straight frames off picture. That's easily enough corrected but the random in/out of sounds is clearly not workable and a real serious problem with he Dolby dude sitting here to the tune of $600/hr.

A few facts... The session was mixed on PT 7 LE mostly, largely touched up on a PT HD 7 rig and the soundstage is on PT 8 HD. But I don't think that's the issue... it's getting spit out of the PT 7 Rig F'd up IMO. Does anyone know of a bug and what in gods name to do about it?

[cjguitar]

As to your first question about some sounds being 3 seconds off, I don't quite understand what you're saying about the problem, and I don't know what could be causing that. I certainly haven't seen anything like that (and we're a dub stage that is in PT 8). The second part of being approximately 3 frames out of sync could be due to the delay from listening through the dolby box. I think it's a 2 frame offset when working at 29.97, but could vary depending on what frame rate you're working at (video needs to be compensated to match the delay).

[TVPostSound]

We dump the mix to stems

Please explain this, are you bouncing to disk, or recording the stems to tracks??

it's getting spit out of the PT 7 Rig

Another term I have never heard of.


Explain the procedure you are using to create your stems.

[soundboy]

What is your reference pic? Is it frame accurate? Are you rerecording your stems back into the LE system, or bouncing them? Check your routing. Are you routing tracks that you are not monitoring to your rerecord tracks, or bouncing them? Lot's to go wrong.