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Audio Disappears… Corrupt File?
I’ve had this happen once before. I’m Printing to Video to a DVD recorder. It works fine for about 15 minutes or longer and then it hits one of my transitions or even just a cut i’ve made and the audio disappears. Sometimes the last video frame freezes for 5 seconds and then it picks up again without the audio. The advice I was given last time was to trash my render files and rerender. That worked like a charm. This time though, i’ve done all that. One thing I did do differently is my first masterclip was captured onto my regular hard drive and the second onto my external hard drive after I ran out of disk space and realized my capture settings had been rerouted back to my regular hard drive. Could it just be that I needed to capture everything to my External?
Thanks,
Jill -
8 Replies
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There is a function in FCP that is often overlooked… and it can help with many audio and video “skipping”, “sticking” and “missing” problems.
You should “Mixdown” the Audio for playback before you dub out of FCP, or during the edit, if you have audio/video stuttering, drop-outs or freezes.
NOTE: Mixdown has even been demonstrated to help with slipping, skipping problems (or “missing” audio clips) for files being EXPORTED as QT (or similar) files out of FCP.
First, SELECT ALL of your audio tracks (highlight them) on the timeline, then:
Sequence Menu > Render Only > Mixdown.
You should see a dialog box telling you its rendering.
It might seem to make little sense that “Mixing down” even simple audio tracks will “fix” complex video “freezes” or random audio dropouts to tape or export, but it CAN.
NOTE: It does not matter of you only have one audio track, if there are random freezes during output, you should try the Mixdown.
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Thanks, I’ll give it a try tomorrow and let you know how it goes. 🙂
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That seemed to work. Thank YOU!
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Glad you’re back in biz,
I and others have posted this information countless times here on the COW with many happy results.
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It actually did it again. I finished one project and was printing to video the next one, and the same thing happened about 25 minutes in. I figured out that i can just push PLAY on the timeline and it goes out to the DVD recorder. So that seems to be working fine now. I would be nice to figure out just what is causing the audio to be gone after a a transition.
Thanks for you help though! If you have any other suggestions, let me know.
Jill
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Just curious – are you using AJA hardware?
Mike
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Hi,
I’m not sure what AJA hardware is exactly. Could you fill me in?
Thanks,
Jill -
[heringji] “I’m not sure what AJA hardware is exactly. Could you fill me in?”
AJA is a brand of capture card.
Its pretty sure that if you don’t know what it is, you don’t have it. 😉
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