Michael Gissing
Forum Replies Created
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Michael Gissing
May 27, 2006 at 11:43 pm in reply to: does downconverting HDV to PAL lose the interlacing?Interlacing is neccessary unless you deliberately want to de-interlace for a look. How do you know the QT is deinterlaced? Are you dropping it back into an FCP timeline and playing out the Decklink or just playing it in QT? Also I assume you are downconverting from a PAL HDV to PAL SD.
Also check the settings in QT. I am not sure, but there may be a de-interlace option during the render which you can untick.
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I have used this same workflow from both HDCam and HDV. Because we used the same FCP version both to offline and then recapture as HD to online, I had no problem with sync, titles, grades or speed changes. Actually on one job, the font was missing, so take care to ensure that fonts from offline are loaded onto the online FCP.
As David points out, make sure reel numbers are correct during original capture. This is particularly important when dealing with timecode resets on DV/HDV. I prefer to label a DV/HDV tape that has code resets with A01, B01 etc to denote firstly that the tape has a break and that each break is recorded as a seperate reel, even though it is on the one same tape. 001, 101 ,201 etc works as well.
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I guess there is a whole generation that doesn’t know what film anamorphic was. It is meant to look squeezed on a 4:3 monitor. The UNsqueeze happens on the monitor or video projection. The sooner we stop throwing away res on 4:3 letterbox the better.
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On a recent job an editor friend tried to capture downconvert SD DV codec from a Pana 1200 deck. Tape were DVCPro100HD.
It just didn’t work and she was advised by the facility hiring the deck that the downconvert to DV didn’t work in PAL frame rates like 25p. Instead we went HD SDI to Decklink extreme, downconvert to SD in the card and then captured in DV codec. One pass capture, not timecode problems.
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The capture tool lets you choose which channels to capture – from none to 12.
Look in the ‘clip setting’ tab.
(user manual 1 page 233) -
Capture cards with HD SDI inputs can accept uncompressed HD from any machine with an HD SDI output – Panasonic, Sony etc. I assume Kona have such an interface card. I use Blackmagic HD extreme card and capture from Panasonic Pro100 and Sony HDCam machines straight to HD 10bit 4.2.2 uncompressed.
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Unlink the stereo clip. Delete the right channel. Pan the left channel to centre. Voila, useless clip gone and audio out both channels
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I think you can render a quicktime of the audio and set the 47.952kHz rate manually. How long does it take for the audio to drift out of sync? The difference between 48kHz and 47.952kHz is a frame per minute. If it is drifting faster than that then the problem is elsewhere. The pitch difference is not noticable between the two rates.
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typo – a Pro100HD Panasonic deck (via HDSDI pic & sound embedded)
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Is audio ahead or behind? If ahead, then an in line delay is possible. Otherwise resync the clips after capture by slipping audio. I have had a similar issue capturing off a Pro 110HD Panasonic deck. The editor slipped sync and then (I think) made sub clips after.