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Exception Error
I am using Avid Xpress DV version 3.0.
While I play my timeline, the video in the starts to jump and stutter,
and then it stops altogether and I get:
“Exception Error: Audio Underun.”
What is the problem? is there a fix?
There doesn’t seem to be an audio problem, more of a video problem.
Thank you in advance,
Jack -
9 Replies
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I’m on a PC, Win 2000 NT Service Pack 2
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Could you please post more detail? Like, how what kind and how much storage you have? What’s the resolution of the footage? How much memory do you have? Underruns (audio or video) happen when you have your video and audio in the same place on the same drive, and the head can’t access the files quick enough. You need drives that spin at least 10k RPM… There are several ways to fix that. Redidigitize and put your audio and video on different drives, physically move the offending file (not for the faint of heart!), do a mixdown, making sure to save the mixdown to a seperate drive…
I’d think of more but the cold medicine is kicking in…
Jon“So you want to throw out the old you – but the old you is old enough to know it won’t make it better”
Del Amitri – “Make it Better” -
i have more than adequate storage, and am not running the program in the same place as media files . Seperate drives, over 120G free storage space, Media VideoRaid SCSi, audio and video in same drive. But files and program are seperate. 1 gig memory.
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Hey Jack,
I’m not sure I agree with putting audio/video on separate drive, cause, at home I have one 200gig drive, and at work I we use a server. I will say that audio/video under run have to do with ram and accessing of file fast enough. The best and easy way to work around this is to/or render the effect in the area of the under run, or mix-down the clips that have the effects. I hope that works for you -
Had this a few weeks ago. Drive died 24 hours later.
Mike Brown
Video/Film Producer
American Heart Association -
This used to happen all the time on other systems I’ve worked on.
Absolutely, render everything. Throw out old pre-computes first.
It could just be a corrupt render.
Usually, for me it came down to a corrupt file, if you work backwards from your last few edits you can figure out which file is bad. If possible just, re-digitize the latest tape you used.Don’t worry about splitting up audio & video onto seperate drives, that’s old school … at least 3 years. lol.
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I have a suspicion you might be right, about the drive dying.
Here’s a question, and please forgive my Avid ignorance, I’ve never been able to quite grasp the whole media files saving system in Avid …
the questin is: can I copy the OMFI media files folder from my sickly drive, and paste the folder to another drive?
I want to back up the files. So, can i just copy and paste the OMFI folder someplace else? -
Yes you can. just delete the two database files in the folder, so Avid will rebuild them after it relaunches.
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[Chxeditor] “Don’t worry about splitting up audio & video onto seperate drives, that’s old school … at least 3 years. lol.”
Perhaps thats why you continue to get underruns 😉
Jon
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