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29.97 HDV to 23.98 ProResLT?
Documentary project. Here’s the rundown and the problem:
— 5 different format HD cameras shot festival event (different subjects for each camera)
— All cameras shot 23.98 except a Sony HDV at 29.97 (1080i60)
— Successfully captured/transferred and converted all clips to ProResLT 23.98 720 for my edit, EXCEPT the Sony HDV 29.97 clips (about 3hrs.)
— 75% of project is 23.98 so I’d rather not uprate everything to match that one camera’s clips
— Final product will be a DVDTrying to convert the 1080i:
— With various Compressor settings to “Better” and “Best” as per Ken Stone, and “Set Duration to: 100% of source”, a 1min clip conversion took 30min and played kinda steppy (handheld doc footage). Unless my math is way off, that’d be about 90 hours of conversion (so I’d best get started?!)–I don’t own AE, and I’m not Motion-savvy
— Read through older posts but cannot wrap my head around best in-house solutionConcluding:
–Someone told me to do this with those clips: 29.97—>60P—->23.98. Make sense?
–I think Nattress Standards Conversion might help me? (I don’t see this specific rate conversion listed in features)Does anyone have a down-rate method with decent results in the comfort of their own studio?
Thanks for listening! -
14 Replies
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I’m familiar with turning on Frame Controls in Compressor. Probably the only control that needs to be BEST is Rate Conversion. Leave Resize and Deinterlace at the default settings. It takes a while because HDV is a long-GOP codec and even with your Mac Pro it’s going to take some time. It’s smart to do a short test encode. If you were able to back off Resize and Deinterlace try another test and, hopefully, the speed improves.
John
MacPro 8-core 2.8GHz 8 GB RAM OS 10.5.8 QT7.6.4 Kona 3 Dual Cinema 23 ATI Radeon HD 3870, 24″ TV-Logic Monitor, ATTO ExpressSAS R380 RAID Adapter, PDE enclosure with 8-drive 6TB RAID 5
FCS 3 (FCP 7.0.1, Motion 4.0.1, Comp 3.5.1, DVDSP 4.2.2, Color 1.5.1)Pro Tools HD w SYNC IO, Yamaha DM1000, Millennia Media HV-3C, Neumann U87, Schoeps Mk41 mics, Genelec Monitors, PrimaLT ISDN
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Thanks, John. I revised the filter settings as suggested and the conversion was much faster. The image quality was as good but the steppy motion just as bad.
Is it worth trying a plug-in from somebody?
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So far this Compressor workflow is best and I don’t know why:
1) HDV 1080i clips >> DVCPROHD 720p60
2) DVCPROHD 720p60 >> ProRes LT 23.98 at 1280×720, Retime 100% of SourceStill steppy, so I look forward to opinions if any 3rd party app/plug-in will be better.
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This is a good example where an HD capture card/IO could be used to save time and money. The capture card would do the conversion in real time.
Steve Eisen
Eisen Video Productions
Vice President
Chicago Final Cut Pro Users Group -
But, would the frame rate conversion quality be better than software? And if yes– just so I learn– why?
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A cross-convert with hardware like a Kona 3 would work very well with material at the same frame rate. But it won’t work with different frame rates. For that you need hardware like a Teranex.
John
MacPro 8-core 2.8GHz 8 GB RAM OS 10.5.8 QT7.6.4 Kona 3 Dual Cinema 23 ATI Radeon HD 3870, 24″ TV-Logic Monitor, ATTO ExpressSAS R380 RAID Adapter, PDE enclosure with 8-drive 6TB RAID 5
FCS 3 (FCP 7.0.1, Motion 4.0.1, Comp 3.5.1, DVDSP 4.2.2, Color 1.5.1)Pro Tools HD w SYNC IO, Yamaha DM1000, Millennia Media HV-3C, Neumann U87, Schoeps Mk41 mics, Genelec Monitors, PrimaLT ISDN
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Thanks for reply… this project has to stay in-house for budget reasons, so it seems like my best option is to bring the majority of footage up from 23.98 to match that single camera’s 1080i frame rate, since that will be the smoothest overall result.
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I’ve not done this, but I believe a Kona will add pulldown to a 23.976 clip to arrive at 29.97 in real time. Hopefully, someone else will confirm that or shoot it down.
John
MacPro 8-core 2.8GHz 8 GB RAM OS 10.5.8 QT7.6.4 Kona 3 Dual Cinema 23 ATI Radeon HD 3870, 24″ TV-Logic Monitor, ATTO ExpressSAS R380 RAID Adapter, PDE enclosure with 8-drive 6TB RAID 5
FCS 3 (FCP 7.0.1, Motion 4.0.1, Comp 3.5.1, DVDSP 4.2.2, Color 1.5.1)Pro Tools HD w SYNC IO, Yamaha DM1000, Millennia Media HV-3C, Neumann U87, Schoeps Mk41 mics, Genelec Monitors, PrimaLT ISDN
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Would a Kona card apply its conversions to existing media or must their be a signal coming in?
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[William Carr] “–Someone told me to do this with those clips: 29.97—>60P—->23.98. Make sense? “
It is completely unnecessary to first go to 60p. Simply go directly from 1080i 29.97 to 720p24 in Compressor using the settings detailed below.
[William Carr] “–I think Nattress Standards Conversion might help me? (I don’t see this specific rate conversion listed in features)
“You don’t need it in this instance.
[William Carr] “Does anyone have a down-rate method with decent results in the comfort of their own studio? “
See below.
Use the following settings in Compressor for high quality 1080i/29.97 to 720p24 conversions:
1. Choose the following encoding preset:
Apple > Formats > QuickTime > Apple ProRes 422
2. In the Inspector tab, click on the Encoder button, then click on the Video: Settings button
3. In the Compression Settings window, choose ProRes 422 (not HQ) and change the frame rate to custom – 23.976
4. Click on the Frame Controls button and make sure your settings match the image below.
5. Click on the Geometry button and make sure your settings match those in the image below.
The results should be very good using this method.
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