Pulldown filter – Grass Valley ProCoder 3 User Manual
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ProCoder 3
Pulldown Filter
Description
The	Video	Pulldown	Filter	is	used	to	convert	non-interlaced	sources	to	interlaced	
targets	without	interpolation.
The	most	commonly	used	pulldown	is	3:2	pulldown,	used	for	converting	film	footage	
for	playback	on	NTSC	devices.	DVD	video	is	for	example	very	often	making	use	of	
this	method.	When	your	source	is	23.976	frames	per	second	progressive	and	your	
target	is	29.97	frames	per	second	interlaced,	this	filter	will	produce	footage	following	
the	3:2	pulldown	rule.	However,	pulldown	might	be	usefull	for	more	conversions	
because	it	entirely	avoids	bluring	caused	by	interpolation		it	will	not	modify	the	actual	
image	data	of	your	source	video	but	rather	prepare	it	for	playback	on	an	interlaced	
device.	Occasionally,	depending	on	your	source	and	target	frame	rates,	stuttering	can	
happen	in	the	playback.	In	that	case	it	is	recommended	to	remove	this	filter	and	use	
interpolated	results	which	is	automatically	created	during	conversion.
Options
Field Order
Output Field Order
Select	the	desired	output	field	order	from	the	drop-down	list.	Set	it	to	Auto	to	have	
ProCoder	determine	the	best	field	order	for	each	source.	
Notes
No notes.
