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AVCHD 24p Clips- Import Undercranked?!

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AVCHD 24p Clips- Import Undercranked?!
by Bill Bilowit - Tareco Pictures on Mar 4, 2008 at 7:18:52 am

With Jeremy's help, I am now able to see a mounted SD card volume from our new Panny SD9 AVCHD cam. But here's the surprise-- after import as ProRes these 24p clips play too fast! In the browser or a timeline. I tried it with remove pulldown checked and unchecked.

The audio runs normal, but the visuals play as if undercranked. The imported clip runs about 30 percent shorter (faster) than the original, the audio simply gets truncated when the picture's done.

I located the clips in the scratch folder and opened in Quicktime. Also plays too fast with lagging audio. Using Compressor I converted to DVCPROHD 720p24 (these clips are insert shots for an ongoing project). Imported the 720-converted clips, same problem.

So they play just great in the Log and Transfer window-- but after import with visuals speeded up.

Going to shoot all day but tonight must face the problem again, and will have even more of these 24p AVCHD clips to import!

Any ideas?
(Running FCS 6.0.2, Quicktime 7.4.1, OS 10.4.11 on recent MBPro.



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Re: AVCHD 24p Clips- Import Undercranked?!
by Tom Wolsky on Mar 4, 2008 at 12:41:40 pm

What frame rate does item properties or the QuickTime player say the video and audio are? Can you use Cinema Tools to conform it to the correct frame rate? What capture preset do you have in FCP before you ingest the material?

All the best,

Tom

Class on Demand DVDs "Complete Training for FCP6," "Basic Training for FCS2" and "Final Cut Express Made Easy"
Author: "Final Cut Pro 5 Editing Essentials" and "Final Cut Express 3.5 HD Editing Workshop"

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Re: AVCHD 24p Clips- Import Undercranked?!
by Bill Bilowit - Tareco Pictures on Mar 4, 2008 at 9:56:57 pm

Hello Tom.

FYI, the duration of a sample AVCHD 24p 49-second clip after ProRes ingest to FCS reads as 33 seconds in the viewer. The very same ingested clip opened in Quicktime indicates the correct 49-second duration, but plays back faster to achieve the erroneous 33-second duration!

To answer your questions:

"What frame rate does item properties or the QuickTime player say the video and audio are?"
--After ingest as ProRes to my DVCPRO HD 720p 23.98 project, the clip item properties indicate "24 fps". In Quicktime the same clip also indicates "24".

"Can you use Cinema Tools to conform it to the correct frame rate?"
--I conformed the clip to 23.98 and now Quicktime indicates a 23.98 rate. But the duration now reads 33 seconds (the original duration is 49 seconds).

"What capture preset do you have in FCP before you ingest the material?"
--DVCPRO HD 720p24 48khz
Hmmm, maybe this is an issue, with its 59.94 rate that's assuming a firewire device for capture?
If so, what capture preset should I use? All of material is either from a P2 card or this new AVCHD format.


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Re: AVCHD 24p Clips- Import Undercranked?!
by Michael Gracey on Apr 13, 2008 at 3:39:33 pm

I am using the same camera and getting the same issue when importing as you described Bill? Where you able to solve this?



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Re: AVCHD 24p Clips- Import Undercranked?!
by Bill Bilowit on Apr 13, 2008 at 11:05:28 pm

Hello Michael,

I have just upgraded OS to Leopard, FCS to 6.0.3, plus installed iMovie 7.1.1 in case FCS still has trouble with this. I will try in the next day or so to ingest AVCHD 24p and report on the results.



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Re: AVCHD 24p Clips- Import Undercranked?!
by Bill Bilowit on Apr 14, 2008 at 7:37:04 pm

After testing with FCS 6.0.3 and the very latest iMovie, the answer is still no, AVCHD 24 from the SD9 will not get ingested without picture speed-ups and truncating clip lengths.

If there is a workaround, please inform!


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Re: AVCHD 24p Clips- Import Undercranked?!
by Tom Wolsky on Apr 14, 2008 at 9:21:58 pm

First of all do you what this camera is actually shooting? Is it 29.97 with pulldown, or is it 23.976? From I can find it actually shoots 29.97fps with pulldown. You are using the Log and Transfer window, right? Try setting your preset to HDV at the appropriate frame size and frame rate. Not sure why you're using DVCPRO HD as a preset.

All the best,

Tom

Class on Demand DVDs "Complete Training for FCP6," "Basic Training for FCS2" and "Final Cut Express Made Easy"
Author: "Final Cut Pro 5 Editing Essentials" and "Final Cut Express 3.5 HD Editing Workshop"

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Re: AVCHD 24p Clips- Import Undercranked?!
by Bill Bilowit on Apr 14, 2008 at 10:03:21 pm

I can't confirm if the camera is shooting a native 24 onto its card, you may be right.

I was using DVCPRO HD during the transfer process because the larger project is in that format. Since, I've tried every other format and Easy Setup, such as ProRes, etc. including HDV at both 23.98 and 29.97, with and without Remove Pulldown in the prefs.

FCS just won't import clips shot in the 24 mode from this camera without the same problem- speeding up the motion thus shortening the duration yet retaining and truncating proper speed audio. Yet the clips play in the proper speed just great in the Log and Transfer window.

A brand new iMovie 08 did exactly the same thing, and now simply crashes trying to import either 24 or 29.97 clips.

And as of right now FCS is also crashing upon any AVCHD attempt too.



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Re: AVCHD 24p Clips- Import Undercranked?!
by Tom Wolsky on Apr 14, 2008 at 10:23:57 pm

Can't help. Sounds as if it's really unsupported.



All the best,

Tom

Class on Demand DVDs "Complete Training for FCP6," "Basic Training for FCS2" and "Final Cut Express Made Easy"
Author: "Final Cut Pro 5 Editing Essentials" and "Final Cut Express 3.5 HD Editing Workshop"

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Re: AVCHD 24p Clips- Import Undercranked?!
by Bill Bilowit on Apr 14, 2008 at 10:31:16 pm

24fps mode AVCHD appears to be very unsupported, and 29.97 is spotty at best.

Meanwhile, thanks for your input!



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Re: AVCHD 24p Clips- Import Undercranked?!
by Bill Bilowit on Apr 28, 2008 at 8:11:52 am

Follow-up: yes, finally solved it! 24p from the SD9 into FCS as ProRes. Converted clips play fine.

Here is a link to the site where I read about the solution:

http://37prime.com/news/?p=99

It was adding the latest Perian component to the latest Quicktime. Perian seems to no longer be conflicting with FCS with all the most recent updates.

Good luck!



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