I got it recently and have only played around with it a little, but the little i have has worked very nicely for slowing down some dance sequences beyond what i could do with stretching the timeline in Vegas. Very smooth. My eye is not always as discerning as some of the other forum folks here, but not noticing artifacts on the clips i played with or other problems...just beautifully slowed down movement. Very easy to use interface and controllable with in and out points on a timeline and can ramp up and down to your desired speed. I'm using standard DV clips though, so can't speak to how it is on HD material.

Legs can be one of those difficult things for Optical flow. Actually anything being tracked that goes behind another object and then shows up again. You lose tracking and must reacquire.

Legs crossing each other is one of those situations. I saw something like this in one of my tests with someone waving their arm behind someone else. When their hand disappeared and then showed as it went between other arms and bodies and bike frame parts you could see some aritfacts. This was me doing a test and pushing to 960fps from a 60fps source played back at 30.

An editor peeping who is looking for issues will likely find lack of perfection. A viewer watching compelling content probably will not notice what the editor would notice.

Gotta give a solid +1 on ReSpeedR. Pretty amazing results. Like Norman, I cut a lot of GoPro mountain biking footage plus aerial stuff from a quadcopter/GoPro combo. Interface is nice as well, but it does take some practice to get it down. You will have some pretty large files as a result at pretty high bitrates as well.

It does not process audio at all. If I need some of the audio I'll put the original clip in VP and stretch/shorten it using <ctrl> Lt-click the audio of the original clip and make it whatever length I need it (within VPs limits). Then, replace the original video media with the ReSpeedR'd clip. This works just fine most of the time...YMMV..

I would like to see an "ease-in/ease-out feature, but you can sort of do that from the ReSpeedR interface somewhat manually...If that's the "Ramp up/down" feature that Woodenmike referred to, I have not figured out how to do it without a somewhat manual approach in the timeline interface....did I miss something?

What REALLY would be sweet would be the entire Mercalli stabilizer/ReSpeedR/ProAdrenalin combo as a plug-in for Vegas...Hey, a boy can dream can't he??

Take it for a spin...I bets you'll like it...

Cheers!

Edit: And as Norman pointed out, legs can whip up some funky artifacting at extreme speeds. I tested this with a dog walking and observed the same thing. Actually made a kinda cool effect on some stuff. Like an acid trip. I'm told....ahem...

Edit deux:

Here is a link to the footage and some others. Source is GoPro Hero3 Black 1080p 60fps...





..

Do re-read John Meyer's valuable review on respeedr I too was about to reach for the plastic until I reminded myself of John's views and analysis. Respeedr would still be £72GB.

Respeedr is a standalone, I'm guessing this would reduce the speed of operation and why TWIXTOR which is only provided as a Plug in for Vegas, is slower in its operation.

What I have also learnt, recently, with TWIXTOR is the KeyFrameable use of Motion Sensitivity. What I understand and have used is the ability that TWIXTOR has of adjusting "crossing-legs" to "separate-legs" in marching, and for me flying ducks wing tips doping strange things!

TWIXTOR is slow in operation within VEGAS. I can live with that. But the added User controls do allow for a lot of variation through the length of the clip.

Here's the TWIXTOR Controls. See "Motion Sens" and its KeyFrameable Clock?



Grazie

Cripes, here I am asking about this product and I replied to the thread that Grazie linked. I must be losing it.....

I downloaded the ReSpeedR demo and it is fairly easy to use. For as much as I might use slow mo or time lapse, which would be little, it would be a stretch to justify the price of Twixtor. I see it as 3 times more than the Pro Dad option if I am reading it right.

I have been playing around with it and the results are pretty good, the only thing I have an issue with is that when you edit you visualise the scene or sequence in your mind as to how you want the final motion to look and the application of Respeedr isn’t friendly in this regard. The best way for me personally is the way Sony Vegas handles respeeding through velocity envelopes but it doesn’t have motionflow capacity hopefully Sony Vegas will use Respeedr motionflow with Vegas velocity envelopes similar as with the Prodad stabilising application.

I would like to see an "ease-in/ease-out feature,


I already sent a suggestion about adding a speed ramp feature. Ramp from X to Y within the work area. The online form seems to go into a black hole. Using the actual support email address helps.

This is easily done in Vegas. Just slow to a slow too much around your selection and then in Vegas use Velocity to ramp up the approach/departure. This is just tweaky to get the timing exact since moving the velocity changes the exact frames displayed in an event.

In the respeedr UI it becomes trivial, and since this is the spot we are setting up out slow-mo it would be nice to use get it all done in one spot. For one thing I did in respeedr I just went from 2x slow to 6x to 4x to 2x on a sequence. A smooth ramp would be nice to have for us lazy types.

What I have also learnt, recently, with TWIXTOR is the KeyFrameable use of Motion Sensitivity


No doubt all the tweakable features in Twixtor may be useful to help in situations.

I think it was John Meyer who explained a process of getting Vegas envelope node and the exact frame to line up with the velocity node by using control alt something = very cool method but UNFORTUNATLY I forgot how, tried to find that thread to no avail.

So if anyone remembers OR KNOWS this method I would really appreciate a refresher.

I know it’s not your elbow on shift, ring finger on 1 and thumb pressing on backspace cause I’ve tried it and lots of other painful options, LOL.

Drawing a bit of a blank here, Roars! - Give us a bit more to go on?

G

A lot of good ideas here in this very old thread::

How to freeze a scene?

This is probably the old thread you are thinking of:

Stop action at a specific frame - simpler solution

Even Grazie was impressed with my solution ...

I'm impressed with EVERYTHING you do, John me Lad!

And yes that thread was one of yer best.

Grazie

There you go... thanks John and Grazie Much appreciated guys

Grazie,

use of Motion Sensitivity. What I understand and have used is the ability that TWIXTOR has of adjusting "crossing-legs" to "separate-legs" in marching, and for me flying ducks wing tips doping strange things!


This is a Respeedr thread but can you quickly describe what you do to help Twixtor in these circumstances. Increase motion sensitivity temporarily, or decrease, or...?

or do a new thread. This is probably generally useful information.