vibrating images on external monitor

sean90291

Veteran
I shot footage in 24P Normal on my DVX100A and imported them to Final Cut Pro for editing. My producer is barking at me for not shooting regular interlaced, because when she pauses the footage, the frame "vibrates" on the external TV. Not on the NTSC monitor but on the external viewing TV. She was trying to tell me that importing 24P into NTSC leaves problems, and I tried to explain to her that the images are converted to NTSC 29.97 in the camera before they're ever captured by Final Cut. Any idea why that image vibrates in pause on some monitors using Final Cut Pro?
 
Because it is interlaced - try the same thing with 29.97 footage and you should have the same result. When are you going to pause the video for the final product?
 
that's what i thought (the 24P footage has become "interlaced" by having been converted to 29.97 in camera). correct?
 
24pN footage is 24p over 60i signal - this is ment to be edited in a 29.97 timeline. 24pA is 24p over 60i signal but with the capability for FCP to extract the original 24p footage out of the 60i so that it becomes 24 progressive frames to edit (no more 29.97). Both 24pA and 24pN can be used in a 29.97 timeline but 24pN (F5 on cam) is easier.

To answer your question, both 24pA and 24pN have interlaced components in their signal. If you go frame by frame, you should see some are interlaced and some are progressive (this only applies to the computer monitor). On your external monitor, it has to be interlaced to display properly on a TV. Dont fret about the flicker if you are paused it is NORMAL.
 
soarprod said:
24pN footage is 24p over 60i signal - this is ment to be edited in a 29.97 timeline. 24pA is 24p over 60i signal but with the capability for FCP to extract the original 24p footage out of the 60i so that it becomes 24 progressive frames to edit (no more 29.97). Both 24pA and 24pN can be used in a 29.97 timeline but 24pN (F5 on cam) is easier.

To answer your question, both 24pA and 24pN have interlaced components in their signal. If you go frame by frame, you should see some are interlaced and some are progressive (this only applies to the computer monitor). On your external monitor, it has to be interlaced to display properly on a TV. Dont fret about the flicker if you are paused it is NORMAL.


Thank you! I'm going to tell my producer to STOP BARKING!
 
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