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September 21st, 2006, 08:59 PM
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#1 |
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New Boot
Join Date: Sep 2003
Location: United States
Posts: 16
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30PN- whoops!! need help syncing
We accidentally recorded in 30p NATIVE. We recorded the audio separately at 30fps, but cannot sync them. Does anyone know how to fix???
Thanks!
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September 21st, 2006, 10:44 PM
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#2 |
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Major Player
Join Date: Apr 2006
Location: Dallas, TX
Posts: 355
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You mean like the audio was recorded on a audio recorder and not the HVX??
The HVX can record very good audio.... But if it was all 30p??? Please explain |
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September 21st, 2006, 11:29 PM
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#3 |
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New Boot
Join Date: Sep 2003
Location: United States
Posts: 16
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different speeds or interpolation?
It is not possible to record audio when the camera is in the 30pn mode to the P2 cards. We had a separate audio recorder and recorded it at 30fps. When we sync in FCP, it loses lock in about 5 seconds. Something weird is going on...
We called panasonic and their suggestion was to post here.
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September 22nd, 2006, 12:29 AM
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#4 |
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Barry Wan Kenobi
Join Date: Jul 2003
Location: North Carolina
Posts: 3,863
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It's certainly possible to record audio when shooting 720/30pN. That's no problem at all. The only time it doesn't record audio is if you're overcranking or undercranking. But if you're shooting 720/30pN at 30fps, it recorded audio on the cards.
Second, why wouldn't it sync? Audio doesn't have a "frame rate", and both the video and audio should be crystal-controlled, so as long as you have a point of reference for the start of the shot it should stay in sync, at least for a long time... |
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September 22nd, 2006, 02:13 AM
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#5 |
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Regular Crew
Join Date: Apr 2006
Location: San Francisco, CA
Posts: 77
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Is your timeline at 30PN as well? If your timeline is set to 24PN and you put in a 30PN clip, that might account for the difference.
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September 22nd, 2006, 02:23 AM
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#6 |
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New Boot
Join Date: Sep 2003
Location: United States
Posts: 16
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P2 info
This is the info off the card:
vformat: dv100_720/59.94p frame rate:29.97 rec rate: 24f The menu says: rec format: 720p/30p rec mode: dvcpro50 Not sure exactly what what happened when we recorded it. When we called Panasonic, they said that it was at 30pnative. Regardless, we can't get the sound to sync. I just did a new sequence with the timeline with the set-up at 720/30p and still have the sync issue. It doesn't even last 1 1/2 seconds before it seems to go completely out. The audio is going at a much slower rate than the video. All suggestions are welcome :) Thanks
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www.joesgrille.com Music Video Production, CD/DVD Manufacturing and Syndicated College Radio Programming Remember, Let's all be independent together tm Last edited by Wendy Rubin; September 22nd, 2006 at 03:44 AM. |
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September 22nd, 2006, 10:22 AM
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#7 |
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Major Player
Join Date: Apr 2006
Location: Dallas, TX
Posts: 355
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Make sure you sample rates are at 48K, what did you record the audio with?
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September 23rd, 2006, 11:50 AM
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#8 |
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New Boot
Join Date: Sep 2003
Location: United States
Posts: 16
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still cannot sync
recorded audio on a hard disc audio recorder. Someone suggested that the issue may have to do with Metadata. Don't know what that is...?
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www.joesgrille.com Music Video Production, CD/DVD Manufacturing and Syndicated College Radio Programming Remember, Let's all be independent together tm |
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September 23rd, 2006, 01:20 PM
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#9 |
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Major Player
Join Date: Apr 2006
Location: Dallas, TX
Posts: 355
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How are you dumping the audio into your system??
What is the sample rate?? |
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September 23rd, 2006, 01:23 PM
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#10 |
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New Boot
Join Date: Sep 2003
Location: United States
Posts: 16
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It was just copied from the audio hard drive to my external drive. It was originally recorded as a WAV file. Then just imported into FCP.
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www.joesgrille.com Music Video Production, CD/DVD Manufacturing and Syndicated College Radio Programming Remember, Let's all be independent together tm |
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September 23rd, 2006, 01:36 PM
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#11 |
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Wrangler
Join Date: Oct 2002
Location: Los Angeles, CA
Posts: 2,100
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So Rec Rate says 24P?
Sounds like you overcranked 30fps while recording in 24p mode. That wouldn't be 30pn mode; that's why nothing is syncing. In other words, you shot 124% slow motion. It's so slight it doesn't look much like slow motion, though. If you set the files to play back at the frame rate they were shot at, then your files become "real time" then. If you're on a Mac, you can use Cinema Tools to conform these files to 29.97. Of course I could be diagnosing this wrong, but...
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My Work: nateweaver.net |
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September 23rd, 2006, 01:39 PM
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#12 |
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New Boot
Join Date: Sep 2003
Location: United States
Posts: 16
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Thanks-I'll give it a shot now!
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September 23rd, 2006, 02:14 PM
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#13 |
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New Boot
Join Date: Sep 2003
Location: United States
Posts: 16
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In cinema tools, it says the frame rate is 29.97. Not sure what to do...
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September 24th, 2006, 06:48 PM
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#14 |
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Major Player
Join Date: Apr 2006
Location: Dallas, TX
Posts: 355
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Duplicate that clip and then conform it to 23.98.....
It may also need Reverse Tele-cine.... Don't perform these procedures on your original clip. Then put your conformed clip in a 720 24p sequence... drop you audio in and see where you are at.... If that is not the problem duplcate your audio... then try stretching it our 124% or shrinking it by 80%... Kinda like skating on marbles??? |
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September 25th, 2006, 11:03 AM
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#15 |
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New Boot
Join Date: Sep 2003
Location: United States
Posts: 16
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Right on! That worked. Didn't need the rev telecine. I do have to render the conformed clip when I place it in the 24p sequence. Can you tell me what we did wrong when we shot it?
Thanks!!!! Wendy
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