This is a point that many new users have been voicing, but it has never been taken seriously.

@RockyZ  You could try using a nested timeline. You would then get up to 16 x speed up (400% on top of 400%). You would nest the project with the sped-up event in another project. Then in the second project you can speed up this event, which is the first project, another 400%.

I also don't know why this is soo hard for devs, making the line in the code :)

max_limit = 4.0
to
max_limi = 20 for example.

Any real reason?
Yes, vel.env. doesn't affect audio..

my trick is render at 4x, respeed that render at 4x...etc

Vegas 4x

Capcut 100x

Resolve 1000x (it may not have a limit)

At least 10x would seem sensible

Thanks for your suggestions guys, seems like such a simple thing is so overly complicated, and the whole appeal of Vegas to me at least is the user interface and other than the issue described in this post, generally I tend to work much faster on Vegas than anything else.

I guess in some cases limitation makes sense, unless it's a time-lapse I do not see a need to fast forward >10x. but the limitation is 4x. Imagine I made a video of me driving my car, I stopped at a red light that takes 2 minutes, the maximum I can speed at up to 30 seconds (without going trough hoops). Now imagine being a viewer and essentially having to look at a stationary image for 30 seconds (assuming I didn't wanna jump cut).

Gonna try Resolve, never used it but it's free so why the hell not, because with nesting or even re-rendering, it just takes too much time.

@RockyZ

Hi,

How can I for example, speed up both Video and Audio 6x or 10x.

At what point would you consider that the audio would be either unintelligible or just noise?

With Video Pro X/Magix Movie Studio, Magix has determined that the playback speed can be a minimum of 0.25 and a maximum of 4. When you try to go beyond the limits, the program pops up a message advising you of this and asking if you want remove the audio part or cancel and keep the sound at the maximum possible speed changes. Without the audio, you can increase/decrease the speed beyond these limits by typing in a value for the effect or by dragging the end of the clip when in Object Stretch mode.

I have not tried audio in a video editor beyond these limits. At 4X, the audio was already pretty bad.

I tried in Music Maker - project at 120bpm, increased tempo effect to 240 (max), then I increased project tempo to 240, effectively giving me 4X. The audio, me speaking, was barely intelligible. I increased the project tempo to 360 and the audio was no longer intelligible.

As for limits for video, I think that one has to understand what one is doing. If you speed up a 10 second video 4X, it will be 2.5 seconds long. 10X gives a 1 second clip. 100X gives you 3 frames at 30fp. 300X gives you 1 frame.

In any event, Vegas should allow for video to go beyond 4X.

John CB

Video can easily be sped up 1000x using a velocity envelope and add the Playback Rate you can get up to 4000x. Audio would be irrelevant at that speed. Going beyond the 4x seems unreasonable for audio anyway. However, there's also the Time Stretch audio effect that goes from 50% to 500%. So perhaps you simply need to use a combination of tools!

@RockyZ

Hi,

How can I for example, speed up both Video and Audio 6x or 10x.

At what point would you consider that the audio would be either unintelligible or just noise?

 

Video can easily be sped up 1000x using a velocity envelope and add the Playback Rate you can get up to 4000x. Audio would be irrelevant at that speed.

Yeah I completely understand, audio mostly is unintelligible after 5x /6x but for my applications in mostly comedic creations, the sped up voice is something I frequently use. Whilst speech itself is unlikely to be understood past 6x. if you consider that voice and intonation of a group of people sped up can still be very easily understood, such things shock, people saying wow etc.. etc..

@RockyZ Did you check for 3rd party plug-ins available in Vegas? For example, I have Sound Forge Pro installed which makes the elastique timestretch audio plugin available to Vegas. That can speed up audio 10x.

@Robert Johnston, that effect is not available as standard in VEGAS. I don't have Sound Forge Pro installed and it is not in my VEGAS.

But there *is* a time stretch effect which can go 2x, add the 4x from the Playback Rate and you can get up to 8x. Add another "time stretch" effect, you can have 16x. Just keep adding time stretch effects until the desired speed is reached?

There's a tool in HOS that does just this--speeds up and slows down both video and audio together. Here's a link to a demo on the HOS website. https://tools4vegas.com/speedramp-demo/

And just for grins, I just did a speed up from 1 to10x set for 5 sec and a speed down at the end from 10x to 1x, again taking 5 second.

Here's a demo of some raw road footage I filmed in Nova Scotia at 4K 60P.

And finally, a screen grab of the settings I used.

Unfortunately, uploading to Vegas really mangles the quality of the file. Here's a direct link where the rendered file can be downloaded. Note that I used Nvenc for rendering, which isn't a very high quality renderer, but it's faster.

https://www.dropbox.com/scl/fi/j92xvpicx0on5hjggnym5/10x-SpeedRamp-Demo.mp4?rlkey=l85hfntjh5ex65xgtgz1l7ya9&dl=0