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Old July 9th, 2012, 05:56 PM   #1
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Join Date: Aug 2003
Location: Los Angeles, CA
Posts: 817
Losing sound synch with Black Magic and Premiere

Hey all,

I'm working on a new PC today in Premiereand it is constantly losing audio synch. Here's what happens:

1. If the audio is in synch, if I switch to a different sequence it loses audio synch
2. It loses it a bunch of other ways as well, but that's the one I've found repeatable
3. If I switch to another window, like a web browser, and come back to Premiere - the audio is in synch again
4. When switching sequences, I see the monitor go black and then read "no synch" for a second and then come back - but with the audio out of synch
5. The monitor does that same thing when switching back from a web browser, but again - that puts it BACK in synch
6. The video on the monitor is in synch with the computer, it's the audio that lags

Here's what's installed:

Black Magic DeckLink HD Extreme 3D+
Black Magic DeckLink WDM Streaming
Driver (up to date)

Any clues? It's maddening. And if it were not already the brand name, I'd say it was the result of some black magic ;).

Thanks in advance!
Barry Gribble
Integral Arts, IMDB
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Old July 9th, 2012, 07:02 PM   #2
Regular Crew
Join Date: Dec 2011
Location: Brownsville, OR
Posts: 116
Re: Losing sound synch with Black Magic and Premiere

I was under the impression that it takes a bit of time for Premiere to process the audio data.
More than once I've concluded that the audio was not even working only to see it come back
apparently after being decoded. I never had this problem until I started working with AVCHD
files which my computer is struggling to process.
Stephen Brenner is offline   Reply

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