Frame blending help

hi,
could someone explain to me what 'frame blending' actually does when slowing a clip down?
which is smoothest with with or without?
thanks in advance

could someone explain to me what 'frame blending' actually does when slowing a >clip down?
If you want a clip to play for 4 seconds that is only 2 seconds long, you will need extra frames, duplication adds the new ones.
Frame blending does more than a straight duplication, it uses the before and after frames to create intermediate frames and will give a smoother look, but sometimes a little unatural in appearance.
Try turning it off if you don't like the look.
Al

Similar Messages

Frame blending on clips @ 100%

I used to rely on frame blending to provide smooth video, and I can't release any more videos as my customers do complain when it isn't smooth.
Frame blending in CS4 is only applied to clips that have their speed reduced (or change?) from what I can gather.
Is there any way to force frame blending on?
All my footage is recorded at 120-240fps, but the native footage is slightly jumpy which is very noticeable. Frame blending helps eliminate it.

Doing that wrecked sync with the audio. AND if I resize it, the clip shrinks proportionally each time till it crashes, so it seems buggy!
I did however find a crude solution that makes video smoother at the same time.
My clips are at 120-240~fps, I re-encoded them at 30fps using all the frames of course, the result is the same clip but a lot longer and at 30fps. I simply slowed them down (about 800%) till it plays normally. The result is Adobe uses frame blending, and the frame rate seems a whole lot smoother.
It's easy in Adobe just use the frame stretch tool and drag it to match up with the audio since, the amount of frames is never exactly 240 (usually 231, 238 etc).

Turning off frame blending in Adobe Media Encoder

Is there a way to turn off frame blending in Adobe Media Encoder? I have a bunch of
Flip Mino HD footage (1280x720p) which I wish to convert to P2 720p format so that
I can more easily mix and match it in the Premiere timeline with actual P2 footage
shot on an HVX200.
I successfully used Media Encoder to perform this task but there is one problem. The
Flip footage is 30fps and P2 720p is 29.97fps. So Media Encoder uses frame blending.
The frame blending sometimes creates obnoxious artifacts so I would like to turn it
off but there seems to be no way to do this (or alternatively "conform" the 30fps input
to 29.97fps so that no blending is nescessary).
After Effects CS4 would seem like an alternative since it has nice batch composition
creation and rendering features but it cannot render to the P2 format - it appears to
have a older version of Media Encoder embedded within it - predating P2 support.
I would like a solution that is easily "batchable" as I have several hunderd Flip Mino HD
clips that need to be processed.
You might also ask, why not just import the Flip clips unchanged into Premiere CS4
and mix them with the P2 clips?....I have tried this and it seems to drive Premiere crazy
introducing various crashes and other strange behaviors. The pre conversion to P2
route seems to work fine. I just want to get rid of the frame blending.

I happened upon this video just before I made my posting and it doesn't help with the
crashes/hangs. When I import more than about 20 Flip Mino HD clips it seems to trigger
some sort of memory corruption bug in Premiere. Some of the clips start to just
show as solid green in their thumbnail views in the timeline and scrubbing the timeline
eventually hangs Premiere altogether. This is reproducible on two different computers
although the exact symptoms change slightly each time it is tried. Importing only 3 or 4
clips actually seems to work, at least for a short while.
The problems happen even if the only thing imported into the project are Mino footage and
the Sequence is set to Desktop or XDCAM mode. So the crashes have nothing to do
with P2 editing mode.
The same installation of Premiere CS4 on one of these computers has been just used to
successfully edit and render out a P2 project with hundreds of clips, stills and titles so the
basic CS4 installation seems to be solid.
I'll eventually file a bug report but for now I'm more interested in getting the job done.

Frame blending not blending propperly

Problem is this:
A clip is slowed to 20% with frame blending enabled. However, when it's played back, it looks jerky, as though there were a problem with the frame rate.
The clip is MPEG4, 30fps. The sequence is also set at 30fps.
This is what it looks like:
http://www.wpsc.co.uk/teleport/slowmoproblem.mp4
Any help would be awesome!
Thanks!
Ben

I've actually been having this exact same problem for about a half year now (ever since Apple released a past update to Final Cut Pro and frame blending started behaving weird after that.) The bummer part is that all the NEW videos I've made after the update, using frame blending, work great and blend beautifully. But all the videos that I started working on before the update stutter miserably.
The biggest problem is that I have one project in particular (a 6 minute music video) that literally took me about a month to make and it's FULL of slow-mo shots with frame blending and it would have taken me FOREVER to re-capture the footage and start a new project with the updated FCP architecture.
I feel like there has to be a really simple solution, like a field is off or the FPS is off or some little thing that got messed up in the update that I just need to switch back but I haven't the foggiest what it is and I haven't been able to track down any good info on google about this yet.
My "solution" for now (if you want to call it that) is to just take Frame Blending off of all 135 slo-mo shots (which makes it look WAY less smooth, but it's better than constant stuttering). I never posted anything about this in the past because I was always expecting apple to finally release a fix but nothing has ever come out.
Any ideas would be welcome.

FCP turns off when I turn off frame blending

Hi, I really hope that someone can help with this. I'm running FCP 5.1, 8 GB, 2.66 Ghz. Just starting yesterday, everytime I keyframe a move in the motion tab, as I click to turn off frame blending, FCP quits. No "app unexpectedly quit" warning or anything. Just shuts down. It's pretty annoying when you're on a deadline.
Anybody have any ideas? Please feel free to step up to the plate. Thanks!
mac pro G5 Mac OS X (10.4.8) Big Huevos

Did you do any software updates recently? You should always clone your startup drive when you have a stable OS/Application combo. This way you can restore your system to it's previous state quickly.
Have you repaired permissions?

Unwanted frame blending look after transcode

For some reason,
When I burn a DVD in Encore and play it on a TV or a computer (anything) it seems to have a frame blending look where if you pause the DVD at any point, you will see two frames blended together like they are both at 50% opacity. I have no idea why it looks like this. Also, when scrubing through the video in Encore after it has already been transcoded, I will see the frame blending. And if it has not been transcoded yet, I see no frame blending.
I work on a PC with CS3.
I use the recomended transcode settings everyone recomends (23.98 for 24P footage, progressive, CBR 8, and the file is AVI)
I also played the original AVI file to make sure it wasn't an issue before the transcoding/burning in Encore and it looked fine (no frame blending look).
Please help me out if you can, I am about to enter my film into festivals and want it to look the best it can.
Thanks!
-Daniel Soderberg

IIRC, En CS5 changed a few default settings. I do not think that those were eliminated, just the defaults from OFF to ON, or ON to OFF were added. Likely one of those settings made the difference. Do not recall if any of the Frame Blend options were in that group, but they could well have been.
Glad that CS5 made the difference for you, and good luck,
Hunt

Frame blending issue in timeline

For some reason the video in my timeline and in the canvas has the previous frame blended into the current frame (every other resolution line). This makes the picture choppy with horizontal lines especially with fast movements. This issue doesn't show up when I put the video in the viewer but it is still there when the final project is exported. I have tried to tweak with the settings for a long time now and I haven't had any luck. Does anyone know how to fix this issue? It's driving me insane!

Al,
This clip is raw footage captured from a miniDv tape. But I have this issue with High 8 and other sources. The only format that doesn't seem to have that issue is DV from dvd clips that I ripped.
This Sequence properties:
Vid Rate: 29.97 fps
Frame Size: 720 x 480
Compressor: DV/DVCPRO - NTSC
Dat Rate: (blank)
Pixel Aspect: NTSC - CCIR 601
Anamorphic: (not checked)
Field Dominance: Lower (Even)
Alpha: (blank)
Reverse Alpha: (not checked)
Composite: (blank)
Clip Properties:
Vid Rate: 29.97 fps
Frame Size: 720 x 480
Compressor: DV/DVCPRO - NTSC
Data Rate: 3.6 MB/sec
Pixel Aspect: NTSC - CCIR 601
Anamorphic: (not checked)
Field Dominance: Lower (Even)
Alpha: None/Ignore
Reverse Alpha: (not checked)
Composite: Normal
I just noticed that this issue doesn't show up until I drag the clip into the sequence. If I just double click it from the browser into the viewer it looks perfect. I have a screenshot of this issue if it helps, I just don't know how to upload it into this message.
Thanks for your help!
-Ted

''field option" settings and "frame blend" now the motion is stilted!!

Hi there! I messed with ''field option" settings and "frame blend" trying to improve some already very low quality footage - and now the motion is playing and exporting stilted/jerky..!! Any help or suggestions would be very much appreciated!! does anyone know how to revert back or increase smoothness in motion smooth - it's too late to undo... Frame blend doesn't work! Thank you!!! Cally

Hi Ann,
Thank you so much! - clearly I'm a novice. great lesson back to smooth motion. Thanks again for your help!

Question on Whether to Check Frame Blending & Use Previews in AME

Hi, When I export a project for transcoding, there are 3 boxes at the bottom of the menu selctions. One is "Use Maximum quality." I ckeck that. I am unsure as to whether I should check, "Use Previews," and of "Use Frame Blending?" I am encoding Mpeg 2, 1080p, Max quality, 80 frame rate.
Thanka Roman

"Use Previews"
No. That's only if you want to use rendered previews as the source for your encodes. About 99.99% of the time, you don't want that; it will result in lower quality exports, as you're using "precooked" files.
"Use Frame Blending?"
Depends. This is a global switch that you may or may not want to use when your export has a different frame rate that your source sequence/footage. It forces frame interpolation (blending) using two or more discrete frames to create new frames. The exact times you'd want this vary depending on your destination and preferred output look.
The help docs say this about Frame Blending:
Select Use Frame Blending to create smoother motion
by blending adjacent frames when output frame rate doesn’t match
input frame rate.
Smoother motion, yes. Blurry video, sometimes.

Frame blend unaffective?

Hi all,
Here again, once again stumped with Premiere's unwillingness to work properly/consistently and unable to find any other forum threads about my problem.
What's going on is that the clip option "Frame Blend" is not seeming to have any effect on my render in CS4. In fact, when I take on and off, the state of the render remains the same. In other words, if I've rendered and it's green, I turn off frame blend, and it stays green. Turn back on, and it stays green. It's pretty obvious it's just broken-disconnected from affecting my clips, as it renders like a charm, quickly, and in the amount of same time whether or not Frame Blend is checked or not--and the playback of the render is clearly frame to frame. For example, if I slow it down to like 10% it's, step.... step... step... or about 3 frames a second.
The project is SD, the footage is HDV captured in Ppro as mpeg, it's on a OS X 10.5.6 .
Here's the kicker, the same project copy/paste from CS3 works just fine. No changes what so ever and my render time shoots up (as expected) and it actually renders the Frame Blend, producing smoothe video.
I would just export the whole thing out of CS3, but CS3 particularly likes to crash randomly through the export (I've tried a variety of output formats and the standard copy/paste into a new project, timeline, etc). Which is the reason I decided to take it to CS4 to begin with.
I'm going to try the last update for CS4 which apparently has to do with AVC-Intra.. but in the meantime I'd appreciate some help and advice.
Thanks!
- wb

I'm fully up to date, that was the first thing I tried to no avail. I was surprised that updating didn't fix it, I was expecting it to.
SFL, I had searched the forums and came up with nothing, hence my post beginning with 'unable to find any other forum threads about my problem'.
I'll mention again that a) the clips that aren't working have time remapping applied or constant time speed changes. For example, one clip variables from anywhere from 10% to a 80% or so speed change, and many of the clips have been stretched with the stretch rate tool to fit gaps. I wouldn't be able to tell if frame blending was working or not if the speed wasn't changed and still at 100%.
And b) frame blending is working fine in CS3. More details on this are above in my earlier posts, but basically the exact same sequence works in CS3 but doesn't work in CS4. So the circumstances haven't changed between it working and not working.
My vote is some sort of translation bug when updating a CS3 project to CS4. It also messed up a variety of other things (mentioned above) that made me decide to just go back to CS3 for the project and deal with the random export crashing.
Typical week using Adobe products powerful and sloppy. Thanks for the responses all,
- wb

Turning frame blending off doesn't result in change (unless an effect is applied)

Hi!
I have several fast speed clips on my timeline and I need to turn off frame blending in order to avoid the blurriness caused by that setting.
However, when I turn frame blending off, it has no effect on the clip -it stays just as blurry as before. I discovered a workaround which is applying an effect on the clip that does nothing but still forces premiere to re-render the clip (like curves for example, without changing any parameters). But that's only a workaround and I wouldn't like to have to put an additional effect to every single clip that I have with fast speed. Is there a better way to get Premiere to re-render the clips without frame blending? I tried to render the whole work area again, but still the frame blending persists.
Any help will be appreciated!

Just some speculation here as I'm not a network expert.
I don't think it has anything to do with WIMAX, only with communicating with the dhcp server of your device.
Your 169.254.x.x IP is not an IP given by a successful connection, but only a dummy given when the true connection fails. (someone please explain this more accurately )
Work thru the wiki setup page again. Note the dhcpd setup section and the note on your realtek card.
http://wiki.archlinux.org/index.php/Configuring_network
Try the Arch driver again for your card.
Or, switch to the netcfg2 setup, even though using an ethernet card, it works great for my setup with a realtek card.
It can be found http://wiki.archlinux.org/index.php/Network_Profiles here.
Hope it helps.

Frame blending and Film look

Hi everyone,
I'm editing a moutain bike video shot with a sony HDR FX1 in HD and imported as SD.
Editing is finished and if I preview the video on my computer screen its just fine, but if viewed on a TV it has of course that artificial digital look far away from film. now, I noticed that the portions of clips that have been slowed down to 50% and used "frame blending" do look a lot better... by better I mean, they loose a bit of that digital "sharpness". I also played with gamma and colors but I think that the "frame blending" adds a sort of "softness.
I was wondering: if I duplicate my sequence, overlap the original with it's duplicate and play abit with blur (or else?) and make it let's say 30% transparent... would that help?
any suggestions?
I've seen a skiing video presented on QT website shot in HD and compressed H264... and it has that perfect film look.
Would love to know your thoughts.
Thanks
Ciao

Ok,
this is the procedure I courageously undertook:
1. duplicate of my sequence
2. added to the new sequence a level 4 blurr
3. played with color and gamma levels
4. overlapped the two sequences
5. adgusted transparency of the copy sequence according to the different portions of clips... some may result too dark. Transparency goes from 50 to 75%
Result: clearly a less digital look - closer to film -smooth
Downsides: loss of luminosity - everytime I change transparency it takes about 5 hours to render and if it doesn't look how you want it, you have to add another 5 hours.
Raises a problem: on TV it has a look and on a computer screen it has another. Consequently you have to create two separate files according to where you want to play it!
I'm sure there is a better way to do it.

Frame Blending Across Loop Point

Hi all,
I have a 5 frame animation running at 30fps, with the speed adjusted to 10% and Frame Blending checked. I wind up with a nice slow motion fade from frame to frame at the desired speed, but when it loops I get a hard jump. Any way to frame blend across the loop point within Motion? Or another way to achieve this look (without editing them together in a separate file)? The source is actually 5 individual PNG files, if that helps get the juices flowing...
Thanks!
SyddyS

Go into the timing pane of your image sequence. Twirl it open and set the end condition to loop. Then drag the end of the image sequence to the right in your mini timeline for as long as you want it to go.
Motion will loop the clip and it will appear as a single long clip so the frame blending should work across the last frame and first frame in the image sequence.
Andy

Frame Blending

I have two questions. First, I am about to export a film with some slow motion in it. Will it be detrimental if I frame blend the entire film upon export or should I go ahead. If not, I could export the slow motion parts with frame blending and put them back in. Just wondering what's best.
The other question relates more to pixel blending. We have used the de-noiser very heavily on some shots causing a blurry static flutter in them. I was hoping frame blending might help that, but it appears to me it doesn't apply to anything but time adjustment. Any ideas on how to alleviate that flutter?

which de-noiser effect are you using? if its causing a side effect, then it would be better to use another de-noiser, rather than try to fix a problem it creates.
premiere has no real slow motion effect. it will either duplicate frames or frame blend. neither are good options for todays fast refresh rate monitors. if you still want to use frame blend, you can select the slow-mo clips in the timeline and right click to turn on frame blend just for those. if you have access to after effects you can try the one in there, or look at third party plugins like twixtor. if you shot high fps like 60, you can then slow mo that footage and premiere will have frames to work with, and wont need frame blend.

"Frame Blending" while reversing the clip..?

Do I suppose to use "Frame Blending" while reversing the clip..? When going to check the "Reverse" in order to reverse direction of a movement of the clip - it is already checked by default... B U T - when I UNchecked it the quality of the footage with the reversed movement was somehow more clear.. (this is before rendering - just watching in the Viewer).
Is there any general rule regarding this "Frame Blending" (while reversing the clip)? Can I just trust the Viewer quality/difference between when the "Frame Blending" is checked and when is unchecked?

Hi all, and thanks for trying and commenting my plugins.
marekn,
unfortunately there are 2 potential limits in the use of both my Time Remap plugin and the corresponding FCP built-in Time Remap Function:
a. +only the speed of the video portion+ of the clip is modified, and there is no way I know to change speed of the corresponding audio accordingly;
b. the +clip length does not adapt to the new speed+ (longer for a lower speed, shorter for a higher speed - as in the Speed command).
If the average speed of the clip after applying the plugin is lower than its original speed a number of its last frames will be cut off the clip; in the opposite case instead the last frames of the clip will be a freeze frame of the last frame in the original clip.
Only the Speed command in both FCE and FCP changes speed of the audio and adapts the clip length: but Speed applies only a constant speed for the whole clip (not variable as Time Remap). Note that also Fit to Fill changes the audio speed and the clip length, because it basically applies a constant Speed change...
So, marekn, I'm afraid then there is no simple solution to your problem.
If you want the audio to keep in sync with the video while changing speed you have to unlink audio from video, apply Time Remap to the video and fix the audio by splitting it onto sections with different constant speeds, using the Speed command only applied to audio.
About the length of the clip you can use the workaround described in the last Hint (d.) in the Time Remap instructions: it basically suggests to apply Time Remap to a +nested sequence+ containing your clip followed by a stub: the new nested sequence should be long enough to contain the new 100%-50%-100% modified clip. In practice you could make it even longer and than cut off the needless frames after applying the plugin.
I hope this helps.
Piero

Frame blending help

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