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audio out of synch in CS6 for iPhone 1920 x 1080?
When I play a clip, even before adding it to a sequence, the audio finishes before the video finishes, and the synch is way out of line by several seconds at the end of the 46 second clip.
FiLMiC Pro was used to record it. It should be 23.976.
In VLC, it plays perfectly, but strangely shows the frame rate as 23.365755.
Codec is H.264 – MPEG-4 AVC (part 10) (avc1)
1920 x 1080
Audio is MPEG AAC Audio (mp4a) – sample rate 48000hz
I’ve tried creating a sequence from the clip (by drag/dropping) and the sequence that Prmiere creates says a frame rate of 24p.
What can I do to resolve this, I need to use these tesitimonials and can’t really re-shoot them.
Thanks!
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8 Replies
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What happens if you conform the clip to the frame rate that VLC reported?
To do this right-click on the clip and select Modify > Interoperate Footage… and under “use this frame rate” put in 23.365755.
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You have variable frame rate video. Try this: In QuickTime Pro 7, create a reference movie and import that into Premiere Pro.
That has worked for other users.
Kevin Monahan
Social Support Lead
Adobe After Effects
Adobe Premiere Pro
Adobe Systems, Inc.
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One trick I’ve used in the past is to rename the clip from .MOV to .MPG. Something to do with the codec, not really sure what it does but it works a lot of the time.
I’m sad to hear that FiLMiC Pro didn’t work out in this case. I’ve been looking to start using a program like that.
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Caleb
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Yes, it looks like a variable frame rate.
After Apple killed FCP, I switched to Win7, so Premiere is on Win7-64 and I can’t use a ref movie in Premiere.
I’ll see if I can edit it in FCP7 and output a ProRes file that I can use on Win7 with Premiere.
Some other links seem to indicate that will be possible.
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I’d heard that FilMic had been used at the Zacuto shootout when comparing camera such as ARRI and RED to deal with the iPhone footage, so I assumed it would be pretty capable.
I’m surprised there’s no non-variable frame rate option, but … I could have overlooked it.
I don’t use an iPhone (again boycotting anything Apple), so I don’t have an easy way to test (I wasn’t even there when the footage was shot).
I did try your mpg suggestion, and that did not work.
I’ll be forced to use an Apple product to fix the Apple generate H.264.
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Here’s how I resolved my problem:
My CS6 is installed on Win7-64, so using a QT reference is not workable.
I tried that with FCP7 (using a ref created in QT), and it was out of synch, so I doubt that this reference movie would work in Premiere on OS X.
Using a self contained ‘save as’ was also out of synch in FCP7.
I had to export as ProRes 422 23.976 (to preserve the lousy quality of the iPhone) so that it would play without synch issues in FCP7 (also in Premiere on Win7).
I would be nice if CS7 would deal with variable frame rate files without loosing synch.
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[Les Candle] “I would be nice if CS7 would deal with variable frame rate files without loosing synch.”
You can make a feature request to the team here: https://www.adobe.com/go/wish
You can actually shoot the iPhone at locked frame rates, but you have to use an app. Here’s some info I found on that: https://philipbloom.net/2011/05/17/filmicpro/Kevin Monahan
Social Support Lead
Adobe After Effects
Adobe Premiere Pro
Adobe Systems, Inc.
Follow Me on Twitter! -
FiLMiC Pro (from that article) was used to record it at 23.976.
Must be some ‘magic’ from Apple that does the variable frame rates in spite of that.
I’ll make a suggestion to Adobe.
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