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newly captured 720p30 HD clips out of sync
Major sync issues appearing in captured clips.
Capturing into FC2 as follows:
Easy setup – Panasonic DVCPRO HD
Rate – 29.97
Use – DVCPRO HD 720p30
Scratch disk is an internal RAID at level 0 controlled by Apple RAID card.Info from DP on tapes is: Audio/video recorded on Panasonic Varicam AJ-HDC227HE. Using DVCPRO HD format. Camera set to 29.97 and default recording progressive image at 720×1280. 16×9 is aspect ratio.
i should also mention that the camera assistant wrote: “30fps (drop frame)” on each tape. though when i play the tape in the deck it shows colons rather than semi colons. FCP also shows colons (which normally mean non-drop, don’t they?).
i consulted with the rental house for setup of the DVCPRO HD deck (AJ-HD1400P) to make sure i had the deck set up properly because the display on the deck shows System: 59.94. he assured me that this just controls how material would be recorded, not played. i have video and audio settings on the deck at: HDSDI. The deck also says DVCPRO HD 1080i. again, rental guy says this will not affect the playback signal of the tapes. so that is the deck.
anyway, i have 40 tapes captured in this manner. i was just going to take a few minutes and make sure that my captured clips contain all the media they need to (there is this bogus batch capture bug that causes set media start and media end points to drift by anywhere from 7 to 25 frames so i wanted to make sure my handles were covering me, etc., before i return teh rental deck), and.. lo and behold, huge sync issues.
i am talking major on some tapes and not so major on others. i dropped a portion of a clip into the Timeline to see if it was a matter of offset. nope. once i get sync then go downstream about 20 seconds, sync is gone again.
so. i am desperate here.
i, just for kicks, changed my sequence settings to 720p60 to see if that helped. nope.i am really, really hoping that some minor settings adjustment can be made at this point to ‘fix’ my clips. i am supposed to lose the deck in 26 hours and still have 16 hours of capturing i need to do.
HELP, please, help, please!!!
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7 Replies
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[Janelle McCuen] “i should also mention that the camera assistant wrote: “30fps (drop frame)” on each tape. though when i play the tape in the deck it shows colons rather than semi colons. FCP also shows colons (which normally mean non-drop, don’t they?).”
FCP does not support Drop Frame in 720p. Never has, no idea if it ever will. I’ve been asking for this for over three years now.
[Janelle McCuen] “i consulted with the rental house for setup of the DVCPRO HD deck (AJ-HD1400P) to make sure i had the deck set up properly because the display on the deck shows System: 59.94. he assured me that this just controls how material would be recorded, not played.”
Tapes always play at 59.94. If you want to capture the true 720/30 flagged frames, come in via firewire and just set up for DVCPro HD 720/30 Easy Setup. FCP will remove the duplicate frames on the way in.
[Janelle McCuen] “The deck also says DVCPRO HD 1080i. again, rental guy says this will not affect the playback signal of the tapes. so that is the deck.”
The deck is set up to record 1080i. As noted by the rental guy, this doesn’t matter really, but it should be reset to 720p as FCP will be getting a 1080i signal whenever you don’t have a tape in the machine. It’s on the first page of 000 menus, last item on the bottom, SYS FORMAT. Change that to 720.
[Janelle McCuen] “so. i am desperate here.
i, just for kicks, changed my sequence settings to 720p60 to see if that helped. nope.”This should result in zero sync issues as every DVCPro HD camera truly records to 59.94. At off frame rates, the frames are “flagged” but the camera is always recording to 59.94. This is actually how I capture all DVCPro HD, regardless of whether it’s shot in 24, 30 or 60 unless there is a specific reason not to.
The only reason for sync issues that I can see if your actual monitoring of the audio on your system. Ensure that your audio monitoring is in sync to your external video monitor.
Walter Biscardi, Jr.
Biscardi Creative Media
HD and SD Production for Broadcast and Independent Productions.STOP STARING AND START GRADING WITH APPLE COLOR
The new Color Training DVD now available from the Creative Cow! -
[walter biscardi] “The only reason for sync issues that I can see if your actual monitoring of the audio on your system. Ensure that your audio monitoring is in sync to your external video monitor.”
i am monitoring using the FCP interface (viewer window & canvas) with audio output set to: built in device. definitely seeing sync loss.
my settings are:
sequence preset: DVCPRO HD – 720p30
capture preset: DVCPRO HD – 720p30 48kHz
Device Control Preset: DVCPRO HD FireWire
Video Playback: DVCPRO HD (720p60) (1280 x 720)
Audio Playback: Built-in Outputfrom your response it sounds like i am set up properly, though might benefit from changing my capture preset to DVCPRO HD 720p60. is that correct?
i will run a couple of tests capturing at 720p60 to see if anything changes.
[walter biscardi] “FCP does not support Drop Frame in 720p. Never has, no idea if it ever will. I’ve been asking for this for over three years now.”
how will the fact that FCP does not support drop frame in 720p affect me?
thanks so much for your help this early sunday morning. you are a godsend!
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okay.., huge breakthrough.
i captured an 8 minute clip using preset DVCPRO 720p60. it seemed to hold sync when watched in the viewer (where others didn’t). though i wanted to do a direct comparison to the 720p30 clip that it was intended to duplicate.i grabbed the 720p60 clip and dragged it to the timeline, told the timeline to match the settings of the clip. then grabbed the 720p30 captured clip from viewer, dragged to timeline and played both. both were in sync. then i grabbed other 28 and 29 minute clips that play out of sync in the viewer and they are now playing in sync in the timeline.
this is the quick fix i was praying for. i don’t know why this didn’t work when i tried to do it the first time (2+ hours ago) when i just went into sequence settings and changed to 720p60 there. (perhaps the clip was already in the TL when i did that….) anyway. i am brilliantly happy to have a fix that will salvage the last 30 hours of capturing.
my only question now is this…
40 tapes have been captured as 720p30. should i continue to capture in this manner to keep all the media for this project consistent? or should i change my preset to 720p60 now?this feels like an important choice.
thanks again for your expert assistance. -
If 720p/30 is now working and you’ve already captured a bunch of tapes that way, then keep going that way.
Walter Biscardi, Jr.
Biscardi Creative Media
HD and SD Production for Broadcast and Independent Productions.STOP STARING AND START GRADING WITH APPLE COLOR
The new Color Training DVD now available from the Creative Cow! -
[Janelle McCuen] “how will the fact that FCP does not support drop frame in 720p affect me?”
Because if you log your entire tape and then go ahead and do a batch capture, your shots will all be captured incorrectly. Your logs will be in Drop Frame, your captures will be Non-Drop Frame. So your captures will be anywhere from 1 – 60 seconds off what you logged.
This is precisely what happens here when we try to log in 720p, so we’re now forced to cross convert everything to 1080i/29.97 DF when logging and capturing from 720p DF tapes.
Walter Biscardi, Jr.
Biscardi Creative Media
HD and SD Production for Broadcast and Independent Productions.STOP STARING AND START GRADING WITH APPLE COLOR
The new Color Training DVD now available from the Creative Cow! -
[Janelle McCuen] “i am monitoring using the FCP interface (viewer window & canvas) with audio output set to: built in device. definitely seeing sync loss.
my settings are:
sequence preset: DVCPRO HD – 720p30
capture preset: DVCPRO HD – 720p30 48kHz
Device Control Preset: DVCPRO HD FireWire
Video Playback: DVCPRO HD (720p60) (1280 x 720)
Audio Playback: Built-in Output
“This could be your problem as you are sending your audio and video to different sources. If you set your audio to ‘audio follows video’ and you put your headphones into the headphone jack of the DVCPro HD deck. Then take the composite out of the deck in to the composite in of your Monitor and hit, you should see that everything is in sync. Basically, what you are doing is using the deck as a monitoring tool.
Jeremy
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[JeremyG] “This could be your problem as you are sending your audio and video to different sources.”
totally missed that before. You’re absolutely correct, you MUST monitor audio and video down the same path to be in sync. Or you have to use the Playback offset to correct for it.
Walter Biscardi, Jr.
Biscardi Creative Media
HD and SD Production for Broadcast and Independent Productions.STOP STARING AND START GRADING WITH APPLE COLOR
The new Color Training DVD now available from the Creative Cow!
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