We are using Video Pro X13 over 4 different computers with various specs but the main pc is listed below:

RTX 3090 Graphics Card

AMD Ryzen 9 5950X Processor

64gb Ram

with all drivers up to date

When we import clips (mxf files & mp4) the 'Interpolate intermediate frames' option comes on by default on each clip, several of the clips then appear to have 'motion blurr' until we specifically turn off the 'Interpolate intermediate frames' in the speed setting, unfortunately this comes back on by default with every individual imported clip and needs to be manually turned off. It would be helpful if there was a way to turn off 'Interpolate intermediate frames' by default.

On all our previous versions of Video Pro X in the 'Effects' 'Speed' 'Interpolate intermediate frames' it has not been selected by default

@Derek-McArthur

Hi Derek.

Have you set the project movie settings frame rate to match the frame rate of the clips being imported?

Have you accidentally ticked the 'Use settings as presets for new movies'?

Ray.

Hi Ray everything seems fine with the settings other that for each imported clip 'Interpolate intermediate frames' turns automatically on which in some circumstances distorts the original footage. We have one computer with an older version of Video ProX and thats the only one where 'Interpolate intermediate frames' doesn't turn on by default for each imported clip. At present we are having to import everything, group everything and turn off 'Interpolate intermediate frames' for all the clips, then remember to do the same for any additional imported clips.

@Derek-McArthur

Hi

We need the MediaInfo data of a source video clip that shows this issue.

Which drivers are you using for the RTX 3090 - the Gaming Ready (GRD) or Studio (SD)?

John EB

Hi John many thanks for your reply, we don't actually export the clip with the issue showing.. it's really just to find out if there is a way of turning off the setting for 'Interpolate intermediate frames' on Video ProX13 which by default is set to on - while on all other versions of Video ProX its set to off by default - its the same on all 4 of our computers all loaded with Video ProX13

@Derek-McArthur

Hi Derek.

I don't quite get this. If you are importing files and they have not had the speed effect applied the clip should be free of interpolating. Try right clicking a clip and selecting properties.

Ray.

@Derek-McArthur

Hi

. . . . we don't actually export the clip with the issue showing.. it's really just to find out if there is a way of turning off the setting for 'Interpolate intermediate frames' on Video ProX13 which by default is set to on . . . .

I assume you mean you are judging the effect in the Preview monitor - in which case check that the lightning symbol bottom right of the program monitor is turned off, if it is on (blue) then you wil be viewing the result at a lower resolution and framerate.

John EB

Hi John we have previously exported it and the editors noticed the motion blurr in some of the shots and they eventually worked out the problem to be that in the newest version of Video ProX has for some reason the 'Interpolate intermediate frames' set as on by default and for some reason it automatically puts 'Interpolate intermediate frames' on to each imported clip without us selecting speed or doing anything. Each clip has to then be selected and 'Interpolate intermediate frames' cancelled to get rid of the issue. We have been using versions of Video ProX since 2009 with Video ProX 1.5 and this is the first version with this issue

CubeAce wrote on 11/25/2021, 9:28 PM

Hi Derek.

I don't quite get this. If you are importing files and they have not had the speed effect applied the clip should be free of interpolating. Try right clicking a clip and selecting properties.

Hi Ray

We don't get this either unfortunately.. We import files as normal but all imported files are as standard having 'speed effect interpolating' applied by default.

We have been editing on Video Pro for years, we have full-time editors and film/edit around 190 weddings a year and have never had this issue before until we upgraded to Video ProX 13.. we just really need a way of turning this off by default

@Derek-McArthur @johnebaker @CubeAce

Derek - I am glad you have brought this up!

I see exactly the same thing as you and it is visible in the export as well, with as you described - "several of the clips then appear to have 'motion blurr' until we specifically turn off the 'Interpolate intermediate frames' "

For me, clicking that Interpolate check box whether in the speed effect or just the clip properties has a bad effect on the smoothness of the footage any time there is any panning or movement within the frame, in any previous version of MEP and VPX.

It never improves the smoothness of the footage when slowing down with the speed effect and I can not for the life of me think why it is there - or how it would ever work especially with progressive footage!!

It appears to just insert a blurred frame between two sharp frames and that's never going to look good.

I think @me_again reported that the interpolate intermediate frames was checked by default in MEP2022, recently in the "Release -MEP 2022" thread, and noted that it was slowing down his Exports by about 20% also.

I hope the new patches fix it as it would be a pain to have to remember to un-check it every time you import a clip.

Peter

@Scenestealer

Hi Peter

I'm glad that someone else has noticed this problem, it's a pain that every imported clip has this applied by default..I just hoped that there was a way of turning it off, although I'm starting to think that there is a problem with the software.

@Derek-McArthur @Scenestealer

Hi Derek, Hi Peter.

This is a complete mystery to me. I have not seen this behaviour at all even before the update patch.

I think this is going to require raising a ticket with Magix.

Ray.

@Derek-McArthur

Hi

You have not answered the question about whether the source video is Interlaced or Progressive.

I have tested VPX 13 with all progressive video and there are no signs of motion blur, with Interlaced to progressive the known combing issue with panning/rapid movement occurs and Interlaced to Interlaced appears to be OK (on TV).

I have also found you can turn off the Interpolate option in bulk - select all the video clips on the timeline, press Ctrl+ E to get their properties, only one will be listed, turn off the option under Video and OK, the rest are changed as well.

John EB

@Derek-McArthur @Scenestealer @johnebaker

Hi all.

I am about to eat humble pie.

I just opened a project created in MEP 2022 before the last patch. It does have interpolation applied to every clip.

Zooming in and looking at individual frames I can see no difference between it being on or off. No evidence of combining frames. The example below is soft due to panning and running at 25fps.

What does happen if I turn it off on all clips is playback becomes very jerky. It has had no effect on the resulting export quality that I can detect.

Out of interest are you playing MEP back on monitors or TVs? I'm wondering about why there seems to be a discrepancy.

Ray.

Hi John many thanks for your message it is Progressive but the issue is that as a default all footage has been set to have Interpolate on as standard and its something that we do not wish on every clip, its never been activated as a default before and I'm now assuming its a programming error.

@Derek-McArthur @Scenestealer @johnebaker

I think we have to remember some internal settings within the program are purely relative to playback and not exported. I think this may be one of them.

I still think it best to ask the developers.

Ray.

Hi Ray

We dont use MEP but on VPX you can definately see blurring of frames added inbetween normal frames and its not a good look on monitors or on tv..turning off the Interpolation fixes the issue but just really wish it wasn't on as default and applied automatically

@Derek-McArthur

Hi Derek.

It may have been a broad brush stroke applied across the platforms where it wasn't needed. If so it would still be wise to let the developers know. I can only look at individual frames in MEP and see nothing. Are you able to look between frames or are there actually addition frames present? Should be easy to count the frames of one second of timeline.

Ray.

Hi Ray

Ive loaded the same clip twice, one clip with the default interpolation and the other with interpolation turned off. This is the exact frame in each screen shot. On the one with interpolation you can definately see a blurryness in the vegetation on the bottom left.

No Interpolation

with Default interpolation

@Derek-McArthur @Scenestealer @johnebaker

Hi Derek.

I appreciate the images although trying to compare what I see at my end to what you see right in front of you often are two different things.

Again,at my end I see so little difference I can't be sure if it is my eyesight, my screen or the compression from producing a jpg or my web browser that makes it difficult for me to distinguish between the two images......

However, intrigued that I was having so much difficulty I decided to put both into Photoshop,one overlaying the other and setting a transparency to pick out any variation.

To my surprise the interpolated is marginally thinner than the original. The same height but thinner.

Aligning the images so the left side looked sharp, the right side steadily went out of alignment. The same dragging the image to the right.

But that is all I get at my end. It could be down to monitor differences. It's always a bit like two people staring at the same rainbow. I do believe you see differences, so do I but at my end,possibly down to lower resolutions I only see the slight difference in width.

I personally came to the conclusion many years ago that no matter what I tried, the person viewing at the other end would never have the same experience or have a reference to compare to. As much as I hate the idea when so much work goes into production.

I will try that experiment again at my end with one of my files to confirm any differences or whether is was caused by me trying to copy your images.

Ray.

@Derek-McArthur

Hi

I too did a similar comparison but side by side, zoomed in, in an image editor and there is marginal difference in the bottom left corner and a slight twist in the fence post edges, however to see this the images needed to be viewed at 3x magnification to see a small double edge on the grass leaves, which would be typical of interlaced to progressive conversion, however this is ruled out as the source is progressive..

I would have preferred to have about 10 sec of export from both interpolated and none interpolated, to see what they video looks like when played. as looking at a single frame, or stepping through frame by frame, is very much like looking at a single frame of a movie on 65 - 75 mm film - apparent lower quality.

How were the images obtained ie screen grab of the preview monitor or exported as single jpg in VPX?

John EB

Hi John

It was just a screen grab, i will see if i can export a 10second clip with more noticable footage