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.

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

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.

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, 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.

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

Thanks for the help.

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....

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

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.

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.