psuedo slow motion?

ditnoj wrote on 12/27/2004, 2:04 PM
I am trying to figure out how to create the effect where it looks like slow motion but it's still synched with the audio (at normal speed) I would imagine that it has something to do with skipping frames...
Could someone point me in the right direction. I don't even know what the effect is called!
Thanks in advance


Former user wrote on 12/27/2004, 2:13 PM
The effect is mostly called strobing, which skips frames.

But if you are referring to music videos that use this effect, normally they shoot the video with the music running at a faster speed. Then slow down the video to match the music playing at normal speed.

Dave T2
Sullivan wrote on 12/27/2004, 2:14 PM
You want slow motion but to retain lip sync?

Make sure the audio and video tracks of the clip are locked together. (They are if they were imported together from a single A/V file.)

Hold down the CTRL key, click on the right end of the clip, and stretch it to the right.

The video will slow down and the audio will slow down but be pitch-shifted back up to the original pitch.

The video slow-down basically works by duplicating frames. The audio pitch correction is similar, conceptually, although a lot more complicated in the details.
Sullivan wrote on 12/27/2004, 2:17 PM
Ah, strobing. Ignore my answer ;-)
Sullivan wrote on 12/27/2004, 2:23 PM
Try this:

Open the Media Properties for the clip. Set the "Undersample rate" to a number less than one, like maybe .25 or .125

Peeks wrote on 12/27/2004, 11:33 PM
Can i do strobing in Vegas? With what plugin?
jaegersing wrote on 12/27/2004, 11:46 PM
Hi Peeks. Sullivan already mentioned using the Undersample setting for a strobe effect. It's not a plugin, it's under Event Properties.

Richard Hunter
Peeks wrote on 12/28/2004, 1:03 AM
Oh yeah, i'm such a dingdong i didn't catch that.

Thanks for pointing it out!

stormstereo wrote on 12/28/2004, 1:46 PM
Well, from reading your post I immediately think music video slow mo. Play back the song X % faster and record yourself singing on cam. Now put the same song at normal speed on the timeline and slow down the video X % to sync. Looks very cool.

For strobing, which is another thing, Pixelan has two plugins called StepTime and StepMotion.

ditnoj wrote on 1/6/2005, 1:56 PM
Thanks a lot, I will be trying the undersampling deal this week!