-
Decklink FCP 5 Drivers Cause Audio Latency
I’ve been having problems with my Decklink SP – I am working with someone at BMD to fix the problem.
However… In the meantime I’ve been having strange latency issues when trying to playback sequences in the timeline (I’m using my Built-In (analogue) Audio as the output since the Decklink SP’s sound isn’t working at all). I just randomly decided to fully UNinstall the BMD drivers – including the FCP stuff – and the audio latency problem went away.
Strange!?!?
-
9 Replies
-
I have been having the same problem and when I uninstalled the drivers it went away too. Is the audio playing at different times depending on where you start playing from in the sequence? Nobody has seemed to be able to help me thus far. Keep us posted if you get a solution. I am using a Kona SD card, which uses the BMD drivers.
Best,
Eli -
Hi Kai,
Running the Uninstaller is a good idea with weird problems that cannot be solved using normal troubleshooting. Amongst other things, this will delete the Final Cut Pro preferences file which caches some information. This cached information has been a historical source of problems. For example, if we didn’t delete this cache, the the Blackmagic easy setups would fail to disappear from within FCP even though you might have deleted them from your hard drive. It is quite possible that deleting this file has overcome your audio issue. If this really has worked, then the problem should not return.
Regards,
Luke Maslen
Blackmagic Design -
Hi Eli,
Are you saying that all of your problems have disappeared after running the DeckLink Uninstaller and then reinstalling the drivers or do some problems still remain?
Regards,
Luke Maslen
Blackmagic Design -
I use Blackmagic cards all over the place and latency just seems to be par for the course. I have never been able to get a system running Decklink to stop on the frame I want, unless I turn off the monitor output. It’s the one thing I would really like to see fixed. Nearly as much as real time FX for Online Jpeg.
-
No…
The drivers remain uninstalled and the audio works. If I reinstall the drivers the audio starts drifting again.
I’m not sure if it makes a difference but I think I have a defective card – I am having it replaced by Decklink/my Reseller soon.
Hopefully when i get the new card I can reinstall the drivers without losing my internal audio sync. I generally use internal audio to listen and edit, and then the decklink to output to the deck.
-
Another great app for fixing the prefs in FCP is called FCP Rescue 5.
Run it when you have good prefs in FCP, then when the prefs get corrupted, you open the app again, and it trashes the bad prefs and replaces them with yuour back-up.
Thank you to BMD tech support for the link to FCP Rescue 5.
https://www.macupdate.com/info.php/id/14729
-
I’ve been having a similar problem with the Decklink 5 drivers. At times the audio latency is up to a second behind the picture. If I hit the space bar, the sound in FCP continues on for a noticeable time. I’m monitoring the sound either via SDI through a digibeta deck in E to E or via SPDIF to a Tascam mixer. The delay is the same on both devices. Trashing the prefs seems to clear it (Thank God for FCP rescue!!) but it’s a pain in the butt to stop, save FCP, quit, trash prefs, restart FCP, etc. This seems to happen about once a day, usually when I have other programs running such as AE, Motion, Photoshop.
Cheers
John Christie
-
I’ve tried all the above advice and no joy, trashing the preferences doesn’t seem to help. I also tried the latest Decklink drivers and changing the Mac from G4 to G5 and using a different scratch drive . If anyone else has anything else to try I’m all ears.
-
As stated before the only way to get the latency out is to turn off external monitoring.
Try it. If I have no clients with me this is the way I edit with Decklink. It’s a pain but at least
when you are fine cutting the play head stops where and when you want.
Reply to this Discussion! Login or Sign Up