JUDDER ON RENDERING

JohnJ wrote on 11/1/2015, 9:26 AM
HELLO,
Until recently I have been using a Sony HDR SR12E camera which recorded at 25fps. Unfortunately this was damaged and replaced by the insurance company by a similar camera HDR SR 12 (but without the E suffix). This records at 29fps. When I render the project using PRO 12 or PRO 13 there is jerking and juddering. I have tried both frame rate settings settings.
Sampling is set at disabled and deinterlacing is set at interpolate fields which has cured this problem on previous occasions. The subject matter is a train moving through the clip at speed. When played back directly on TV or computer using Windows Media Player the problem does not exist.
Can anybody advise me, please?
Thanks,
JohnJ

Comments

wwaag wrote on 11/1/2015, 2:27 PM
Until recently I have been using a Sony HDR SR12E camera which recorded at 25fps. Unfortunately this was damaged and replaced by the insurance company by a similar camera HDR SR 12 (but without the E suffix). This records at 29fps.

It seems that your insurance company has replaced your camera that shoots PAL footage with a camera that shoots NTSC footage. So which did you want? If you live in a country that's on the PAL standard, then you should really complain to the insurance company (good luck) that your replacement is unacceptable.

Vegas will handle both types of footage, but it's a lot easier to have footage from only one format. If your project settings are set to a PAL standard and resample is disabled, then Vegas will simply drop frames from the NTSC footage to reduce frame rate, which may explain the judder. In any case, more info about your project, media, and render settings would be helpful.

wwaag

AKA the HappyOtter at https://tools4vegas.com/. System 1: Intel i7-8700k with HD 630 graphics plus an Nvidia RTX4070 graphics card. System 2: Intel i7-3770k with HD 4000 graphics plus an AMD RX550 graphics card. System 3: Laptop. Dell Inspiron Plus 16. Intel i7-11800H, Intel Graphics. Current cameras include Panasonic FZ2500, GoPro Hero11 and Hero8 Black plus a myriad of smartPhone, pocket cameras, video cameras and film cameras going back to the original Nikon S.

Warper wrote on 11/2/2015, 4:51 AM
You can try NTXC project instead of PAL project. That is, set frame rate to NTSC 29,972 in project and rendering settings. As computer monitors and most TV sets accept both PAL and NTSC material, you'll probably notice no issues with playback.
JohnJ wrote on 11/3/2015, 12:52 PM
Thanks Warper. This is my retirement project I am non technical so p-lease bear with me. Does this mean I should apply NTXC to the PAL video so that it blends in with the NTSC in one project, which is my aim?
JohnJ
JohnJ wrote on 11/3/2015, 2:49 PM
Thanks wwaag,
Does this mean that I should render the NTSC clips using forced or smart resampling?
JohnJ
wwaag wrote on 11/3/2015, 3:16 PM
@JohnJ

You need to provide some details. At a minimum, your project settings, media properties (both the PAL and NTSC footage--frame sizes, frame rate, field order, etc.), and desired final render settings. Screen shots of these would be the best.

Regarding re-sampling, Vegas generally does not do a good job. The proverbial wisdom is to simply disable re-sampling.

wwaag

AKA the HappyOtter at https://tools4vegas.com/. System 1: Intel i7-8700k with HD 630 graphics plus an Nvidia RTX4070 graphics card. System 2: Intel i7-3770k with HD 4000 graphics plus an AMD RX550 graphics card. System 3: Laptop. Dell Inspiron Plus 16. Intel i7-11800H, Intel Graphics. Current cameras include Panasonic FZ2500, GoPro Hero11 and Hero8 Black plus a myriad of smartPhone, pocket cameras, video cameras and film cameras going back to the original Nikon S.