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EX1 footage mixed w/SD jittery when rendered
Ok… so here is the setup: FCP Studio 2, DVNTSC time line
with SD footage dropped in and peppered with some EX1 HQ footage.Before the render the HD footage works nice… but after the render, it is very jerky or jittery. Any ideas how we can fix this?
Thanks
Scott
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7 Replies
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Do you have different frame rates at play here? 29.97 for DV and then perhaps 23.98 for the XDCAM footage?
FCP does not render 23.98 to 29.97 very well.
Shane
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Try shooting 1080 60i. Seems to be the smoothest for me. My final product is SD interlace anyway. Cable TV and local TV commercials.
Kevin Jones
2.5GHz Quad-core PowerPC G5
Final Cut Studio 2 -
Try shooting 1080 60i. Seems to be the smoothest for me. My final product is SD interlace anyway. Cable TV and local TV commercials.
Kevin Jones
2.5GHz Quad-core PowerPC G5
Final Cut Studio 2 -
[scott strimple] “Before the render the HD footage works nice… but after the render, it is very jerky or jittery.”
Is the EX footage interlaced or progressive?
– Don
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Check to see if the Shift Fields filter has been applied
DV NTSC is a lower field codec, the XDCAM HD is upper field -
Hi Andy,
I Couldn’t check this with a interlaced monitor (tomorrow I will install the ioHD) but what I sow in the computer screen is that the “Shift fields” is not critical (necessary?) when we put HD footage on top of a SD time-line (i.e. EX-1 footage -Upper first- on a DV sequence).
When we set the “Shift-fields” in SD footage, we are moving the image, up or down: 2/480 of the hight of the screen (2/576 PAL). All the pixels falls in the wrong plae.
But when we shift the fields of HD footage we are moving the picture up or down: 2/1080 of the hight of the screen. Not all the pixels falls in the wrong place. The HD lines are not coincident with the SD lines.
Well I my be wrong (I started to use glasses no long ago:-) but if the shift-fields could be avoided the downconversion would be faster.Mac OX 10.5.2-FC 6.02-QT 7.4.1
G5 2x2Gh 4GbRAM-BlackMagic Extreme
PMBP 17″Core2Duo 4GbRAM-AJA ioHD
JVC DTV-17″
SONY EX-1 . SONY PD170
..and always a big mess on top of the table. -
point well made Rafael, thanks
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