Dave F. Nelson |
January 11th, 2007 10:42 AM |
Quote:
Originally Posted by Brian Rhodes
No pulldown removal is required for 30p
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The Sony V1U stores all frame data in a 60i stream. The 24fps and 30fps progressive frame data stored in the 60i stream requires software to extract the progressive frame data from the 60i stream and reassemble it into the original progressive frame data, at the speed (rate 24fps or 30fps) you recorded it in. Pulldown is not requred for 30p like 24p. However extraction is.
In order to restore the 30 progressive frames you recorded to tape or disk on your NLE timeline, you must use software that extracts the 30p frame data from the 60 interlaced frames. The software then reassembles the frame data into 30 progressive frames.
If you don't use software to extract the data and reassemble it into 24p or 30p, your frame rate will be 60i, no matter how the frame data was recorded.
For a simple illustration of how 30p and 24p frame data is stored in a 60i stream, see the Sony website at: http://bssc.sel.sony.com/Broadcastan...ogressive.html
--Dave
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