Interlacing 25p to 50i in Vegas 10

Randall Leong · June 20th, 2012, 03:16 PM

Some of the responses are correct. One cannot get true 50i from 25p. The best that you can do, in this case, is for the software to "interlace" 25p using the PSF (Progressive Segmented Frame) method where alternate lines in the frame get bunched as one field and the remaining lines in that same frame get bunched as the second field (remember, two fields equals one frame). The client wants it that way because either that client's broadcast system only does interlaced or the client is using it for a Blu-ray authoring project whose frame rate cannot be slowed down (Blu-ray does not support 25p at all without interlacing via PSF).

June 20th, 2012, 03:16 PM	#16
Randall Leong Major Player Join Date: Nov 2009 Location: Melrose Park, Illinois, USA Posts: 936	Re: Interlacing 25p to 50i in Vegas 10 Some of the responses are correct. One cannot get true 50i from 25p. The best that you can do, in this case, is for the software to "interlace" 25p using the PSF (Progressive Segmented Frame) method where alternate lines in the frame get bunched as one field and the remaining lines in that same frame get bunched as the second field (remember, two fields equals one frame). The client wants it that way because either that client's broadcast system only does interlaced or the client is using it for a Blu-ray authoring project whose frame rate cannot be slowed down (Blu-ray does not support 25p at all without interlacing via PSF).