PDA

View Full Version : Slowdown momments of the movie (Vegas5.0)


up2
12th April 2005, 04:39
well I think this is the right place to post :rolleyes:

Can any one tell me how to slow down a momment of a movie
example I am on a motorbike making a jump , but its so fast that I cant just see what im doing on the air.
telle me please how to make slowdown...
I am using Vegas 5.0

Thanks

HighInBC
12th April 2005, 22:06
This function is an avisynth function specifically designed for interlaced DV footage, and also changes the speed of the sound without changing pitch.:

function changespeed(clip a, float factor)
{ # Function by scharfis_brain from forums.doom9.org # modified by HighInBC
sound = a.TimeStretch(tempo=((1/factor)*100))
th = 8
ord = getparity(a) ? 1 : 0
f=a.kerneldeint(order=ord, sharp=false, twoway=false, threshold=th)
e=a.separatefields.trim(1,0).weave.kerneldeint(order=1-ord, sharp=false, twoway=false, threshold=th)
interleave(f,e).assumeframebased
changefps(framerate*factor)
assumefps(a.framerate*2,true)
separatefields()
(ord==0) ? selectevery(4,0,3) : selectevery(4,1,2)
weave()
AudioDub(sound)
}


I first got this from Scharfis Brain, then I have since modified it.

Usage:

AVISource("filename.avi").changespeed(speed)

speed is the amount you want the speed multiplied by, .5 half speed, 2 double speed, 1 no effect.

I don't know how to do this with vegas, I use only avisynth.

up2
12th April 2005, 23:40
oh :eek: im surprised that people continue working with scripts
well ... after few hours of :angry: finally I found
just must right click on the video and choose Velocity, and than can change speed :D

Thanks anyways HighInBC :)

HighInBC
13th April 2005, 16:32
ah, very good. You will want to watch the resulting clip on a television to be sure that the interlacing lines were not damaged.

Though, if Vegas knew it was interlaced it _should_ handle it right.

And yes I still use scripts. The problem I have with GUI's is that you cannot look at everything you have done as one big picture. With scripts I can look at the whole film in a text editor and make huge changes with ease later on.

But using scripts does take alot of research and know how, but this site is full of good support.