Jittery slow motion HDV in FCP6 after rendering at DVinfo.net

Jimmy Conway · October 1st, 2007, 03:46 AM

I get a jittery footage after rendering my slow motion clips in HDV in FCP6 in the timeline. I need to turn in this movie in tomorrow as a DV quicktime file and DV tape. Any quick ways to fix this problem? Any help is appreciated. Thanks.

Adam Oas · October 2nd, 2007, 05:26 PM

Can you explain jittery a bit better?

Was the footage undercranked? What is your workflow? Do you have something besides FCP to do the slow mo?

Matthew Gore · October 2nd, 2007, 08:19 PM

Make sure that you have the frame blending box checked.
This helps many times when slowing down DV footage.

Good Luck
Matt Gore

Oliver Smith · October 8th, 2007, 04:28 AM

Did you shoot progressive?

Greg James · March 10th, 2009, 07:20 PM

I just had this same problem when I was working with HD footage that was rendered on a standard definition (720 x 480) anamorphic wide-screen timeline in FCP. I'm sure part of the problem lies in the fact that FCP has to work that much harder for HD and then you have the distortion when bringing into a standard format. When you add slow-motion, it creates the jittery effect. Well, instead of having frame blending selected (as is the default setting in FCP), I unchecked this, and then applied it to all my clips. And then, yippee! All worked about as good as I could hope. Still not "as perfect" as I'd like, but definitely more manageable. Again, whatever slight variation there is after that I think is caused mostly by the HD translation in FCP - but, don't quote me on that.

So, just uncheck frame blending and see what happens. In fact, you should probably try both ways anytime you work with speed change. You may be surprised by the results.

Good luck!

Nicholas de Kock · March 11th, 2009, 02:49 PM

I don't know if you have seen any cinema movies lately, watched Bride Wars, all their slow motion footage is jittery, I see this in many high budget movies, remember that jitter = quality in the screwed up world of high budget movies. Don't be so hard on yourself, 24P slow motion is the way to go.

Mike Barber · March 12th, 2009, 10:34 AM

send your clips to Motion and use the optical flow option for retiming your clip. read more about this in the Motion user manual, it is the better way to acheive smooth slow motion.

October 1st, 2007, 03:46 AM	#1
Jimmy Conway Regular Crew Join Date: May 2007 Location: Santa Clara, CA Posts: 50	Jittery slow motion HDV in FCP6 after rendering I get a jittery footage after rendering my slow motion clips in HDV in FCP6 in the timeline. I need to turn in this movie in tomorrow as a DV quicktime file and DV tape. Any quick ways to fix this problem? Any help is appreciated. Thanks.

October 2nd, 2007, 05:26 PM	#2
Adam Oas Regular Crew Join Date: Jun 2006 Location: Fort Worth TX Posts: 69	Can you explain jittery a bit better? Was the footage undercranked? What is your workflow? Do you have something besides FCP to do the slow mo? __________________ ~~~Adam Oas~~~ www.TexasMotorSpeedway.com

October 2nd, 2007, 08:19 PM	#3
Matthew Gore Regular Crew Join Date: Jun 2007 Location: Duluth GA Posts: 33	jittery slo mo Make sure that you have the frame blending box checked. This helps many times when slowing down DV footage. Good Luck Matt Gore

October 8th, 2007, 04:28 AM	#4
Oliver Smith Regular Crew Join Date: May 2007 Location: Sydney, Australia Posts: 29	Did you shoot progressive? __________________ Liquid Productions

March 10th, 2009, 07:20 PM	#5
Greg James New Boot Join Date: Oct 2006 Location: Portland, OR Posts: 5	Actually, try turning "frame blending" off I just had this same problem when I was working with HD footage that was rendered on a standard definition (720 x 480) anamorphic wide-screen timeline in FCP. I'm sure part of the problem lies in the fact that FCP has to work that much harder for HD and then you have the distortion when bringing into a standard format. When you add slow-motion, it creates the jittery effect. Well, instead of having frame blending selected (as is the default setting in FCP), I unchecked this, and then applied it to all my clips. And then, yippee! All worked about as good as I could hope. Still not "as perfect" as I'd like, but definitely more manageable. Again, whatever slight variation there is after that I think is caused mostly by the HD translation in FCP - but, don't quote me on that. So, just uncheck frame blending and see what happens. In fact, you should probably try both ways anytime you work with speed change. You may be surprised by the results. Good luck!

March 11th, 2009, 02:49 PM	#6
Nicholas de Kock Major Player Join Date: May 2007 Location: KLD, South Africa Posts: 983	I don't know if you have seen any cinema movies lately, watched Bride Wars, all their slow motion footage is jittery, I see this in many high budget movies, remember that jitter = quality in the screwed up world of high budget movies. Don't be so hard on yourself, 24P slow motion is the way to go.

March 12th, 2009, 10:34 AM	#7
Mike Barber Major Player Join Date: May 2006 Location: Toronto ON Canada Posts: 731	send your clips to Motion and use the optical flow option for retiming your clip. read more about this in the Motion user manual, it is the better way to acheive smooth slow motion. __________________ Mike Barber "I'm laughing to stop myself from screaming."