RAM preview audio sync changes when switching from half to full res

[Chad Smith]

In the past (pre CS and 3-6) I was able to preview half res RAM previews in sync if I also adjusted the comp to be 50% in size. However it is not working with CC.

Do you have any work arounds for being able to have audio stay in sync with half res RAM previews?

Thanks!

[Michael Szalapski]

Are you previewing this on some sort of external monitor setup through a Blackmagic card or something similar?

– The Great Szalam
(The ‘Great’ stands for ‘Not So Great, in fact, Extremely Humble’)

No trees were harmed in the creation of this message, but several thousand electrons were mildly inconvenienced.

[Kendall Shaw]

I am a novice. Audio sync problems is the problem I usually have. It has to be that there are a class of problems that is a contributor to this type of problem and learning what the class of problems is would be a great help to me, but I have had no luck learning what that class of problems is, so far.

Using a faster computer, I have had to do this less. So, I assume it is something about the video processing I have done that places higher demand on the computer.

The below hackish solution should be so repulsive to a professional that they will be unable to help themselves from coughing up a general solution that is intelligent:

My brainless solution has been to append extra video that I won’t use. The idea is that, for me, the sync problems occur at the end.

So, for example, if I have 4 clips, the 4th is out of sync. I then kind of guess based on how extreme it is if it is “really” out of sync or not. If it’s just “normally” out of sync. I continue and check on it later. After having appended a 5th clip, the 4th clip is no longer out of sync but the 5th is, etc.

So, when I have this audio sync problem, putting video I am not going to use at the end for the purpose of previewing is what I do.

It seems to work to then limit the work area and preview that ignoring the fluff at the end.

[Kendall Shaw]

I think the original poster is asking about audio sync issues while previewing. Presumably the hardware didn’t change between times when there was not an audio sync problem.

The typical response challenges the premise of the question, ignores what the poster wrote and lists an assortment of scenarios in which audio becomes out of sync, without identifying a fundamental cause.

My workaround is appalling. But, it is a way to function until I figure out what the patterns of mistaken video processing choices are that frequently result in audio being out of sync when the computer is unable to render fast enough, as opposed to say both video and audio being rendered in fits and starts.