Timelapse question ... at DVinfo.net

James Manford · April 14th, 2013, 02:37 PM

Recorded 15 minutes of footage of the sky.

When I put this in to Sony Vegas and speed up the video, it only allows me to speed it up to a maximum of 3 minutes on the timeline and I can't speed it up any more than this. Thing is, it's not fast enough, it's fast, but not enough.

I have to render out the sped up video, and then repeat the step of speeding it up even more to my desired speed so the clouds move much faster in the video.

Question is, is there anyway I can bypass this lock that Vegas places? and speed it up to my desired speed in one go.

Mike Prendergast · April 14th, 2013, 02:43 PM

James, Can you provide some details about what you shot? Did you shoot stills or video? What interval or frame rate?

Mike Kujbida · April 14th, 2013, 03:10 PM

If you have Vegas Pro, apply a velocity envelope for a 3X speed increase.
Then right-click the event, select Properties and change the Playback rate to 4.0 for a further 4X speed increase together giving you 12X.
Remember to adjust the event (i.e. shorten it) to compensate for the increased speed.
In addition, I would disable resample (right-click, disable resample) on the event to avoid blurring.
If that's not enough, save it as a veg file, import it to a new project and repeat as needed.
Saving and importing it as a veg file means no quality loss.

James Manford · April 14th, 2013, 03:14 PM

Quote:

Originally Posted by Mike Kujbida

If you have Vegas Pro, apply a velocity envelope for a 3X speed increase.
Then right-click the event, select Properties and change the Playback rate to 4.0 for a further 4X speed increase together giving you 12X.
Remember to adjust the event (i.e. shorten it) to compensate for the increased speed.
In addition, I would disable resample (right-click, disable resample) on the event to avoid blurring.
If that's not enough, save it as a veg file, import it to a new project and repeat as needed.
Saving and importing it as a veg file means no quality loss.

Genius!

Thanks for the solution. Will give it a try now.

James Manford · April 14th, 2013, 03:16 PM

Quote:

Originally Posted by Mike Prendergast

James, Can you provide some details about what you shot? Did you shoot stills or video? What interval or frame rate?

Just a building, with the sky visible over the roof, shot video at 50p.

James Manford · April 14th, 2013, 03:34 PM

Just to confirm problem solved! Can't believe I didn't discover Velocity Envelope sooner ...

Thanks for the help.

Mark Watson · April 14th, 2013, 06:42 PM

Quote:

Originally Posted by Mike Kujbida

If you have Vegas Pro, apply a velocity envelope for a 3X speed increase.
Then right-click the event, select Properties and change the Playback rate to 4.0 for a further 4X speed increase together giving you 12X.
Remember to adjust the event (i.e. shorten it) to compensate for the increased speed.
In addition, I would disable resample (right-click, disable resample) on the event to avoid blurring.
If that's not enough, save it as a veg file, import it to a new project and repeat as needed.
Saving and importing it as a veg file means no quality loss.

Thanks Mike, I'll try this method next time. I've been crunching it on the timeline, rendering out as an .avi and then opening a new project and recrunch the .avi again to get more speed. The things one learns here....

Mike Kujbida · April 14th, 2013, 07:12 PM

Mark, I used to do it that way until some kind person posted the method I suggested and I am forever in his debt :)

Juris Lielpeteris · April 14th, 2013, 10:33 PM

Quote:

Originally Posted by Mark Watson

ThaI've been crunching it on the timeline, rendering out as an .avi and then opening a new project and recrunch the .avi again to get more speed.

You can use the embeded projects to speed up more then 12 times.

James Manford · April 15th, 2013, 05:24 AM

Quote:

Originally Posted by Mark Watson

Thanks Mike, I'll try this method next time. I've been crunching it on the timeline, rendering out as an .avi and then opening a new project and recrunch the .avi again to get more speed. The things one learns here....

LOL, this is EXACTLY what I was trying to explain in my first post. You summed it up in a single sentence ...

Love the fact you can save the .veg file as loss-less. And re-import into a new project to apply the effect over and over again.

Saves a lot of time.

April 14th, 2013, 02:37 PM	#1
James Manford Trustee Join Date: Jan 2013 Location: London, UK Posts: 1,393	Timelapse question ... Recorded 15 minutes of footage of the sky. When I put this in to Sony Vegas and speed up the video, it only allows me to speed it up to a maximum of 3 minutes on the timeline and I can't speed it up any more than this. Thing is, it's not fast enough, it's fast, but not enough. I have to render out the sped up video, and then repeat the step of speeding it up even more to my desired speed so the clouds move much faster in the video. Question is, is there anyway I can bypass this lock that Vegas places? and speed it up to my desired speed in one go.

April 14th, 2013, 02:43 PM	#2
Mike Prendergast Regular Crew Join Date: Apr 2010 Location: Erie, CO Posts: 52	Re: Timelapse question ... James, Can you provide some details about what you shot? Did you shoot stills or video? What interval or frame rate?

April 14th, 2013, 03:10 PM	#3
Mike Kujbida Inner Circle Join Date: May 2005 Location: Windsor, ON Canada Posts: 2,770	Re: Timelapse question ... If you have Vegas Pro, apply a velocity envelope for a 3X speed increase. Then right-click the event, select Properties and change the Playback rate to 4.0 for a further 4X speed increase together giving you 12X. Remember to adjust the event (i.e. shorten it) to compensate for the increased speed. In addition, I would disable resample (right-click, disable resample) on the event to avoid blurring. If that's not enough, save it as a veg file, import it to a new project and repeat as needed. Saving and importing it as a veg file means no quality loss.

April 14th, 2013, 03:34 PM	#6
James Manford Trustee Join Date: Jan 2013 Location: London, UK Posts: 1,393	Re: Timelapse question ... Just to confirm problem solved! Can't believe I didn't discover Velocity Envelope sooner ... Thanks for the help.

April 14th, 2013, 07:12 PM	#8
Mike Kujbida Inner Circle Join Date: May 2005 Location: Windsor, ON Canada Posts: 2,770	Re: Timelapse question ... Mark, I used to do it that way until some kind person posted the method I suggested and I am forever in his debt :)