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Tourist
Posts: 4

Slo-mo help

Just got my 7 but can’t find anything on how to get slo-mo. I’ve seen in the GoPro app I can slow down the 1080 video to half speed but want to get to super slow mo. Also it said it was unable to play the 4 k videos completely. A how to so I record it correctly would be great. I’ll be way bummed if I get some good stuff but can’t slow it down cause I selected the wrong setting

Explorer
Posts: 12,208

Re: Slo-mo help

I'll do my best to give you a complete rundown on capturing video and editing for slow motion shots. Can you just answer a few questions first so I know how in depth to go with the explanation?
1) First GoPro or other Action Camera?
2) Any editing experience?
3) What video editor do you have?
4) What are your computer specs (Operating system, processor, RAM, GPU if separate from processor, and Hard drive)
5) Which phrase below describes you understanding of ISO, frame rate, shutter speed, EV, WB?
a. I have no freakin' idea, which is why I'm here
b. I've heard of them, but don't really understand them
c. I get the concepts and feel pretty comfortable with my knowledge
d. Photography major, I totally understand. Cut to the chase, just want to know how to slow the footage down.
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Nomad
Posts: 291

Re: Slo-mo help

Let me explain:

 

I use Sony VEGAS 14 PRO.

 

When you want to get ultra dope slow mo record your should record clip in 1080/240 fps. Human eye got a "smooth limit" around 24 fps, everything below will be skipping, not smooth. So in my case I use 30 fps as this limit. Let's calculate: 240fps/30fps (or if you really want 24fps) give you around 8. So it means you can slow down movment 8 times. 

 

In Sony Vegas you can go to clip properties. Default playback ratio is 1.0 , you can slow down ther only to 0,250 so your clip with this setup will be only 4 times slower 0,250 * 240 ~ 60fps but we want to go deeper ;) 

 

Forgot about above and try this:

 

Put your 1080/240fps clip on the time line, click right mouse button and chose INSERT Remove Envelope > VELOCITY. You will see green horizontal line on clip on timeline. It set to 100% speed default. You can 2click somewhere to add dot (keyframe). Click on it right mouse button and set to : 13% (12,5% is excatly value but y will not add fraction). Why 13% > 13% of 240 fps is ~ 30 fps. From this point (keyframe) you will slow down your movie 8 times. You can add more points and setup slower and faster. 

 

Short tutorial: https://www.youtube.com/watch?v=Og0tXPIRZVU

 

 

 

Simple velocity hahah I think this music is perfect for velocity effect, if it's not clear just ask me what you want,I'll try to help you Coloring : Mine Song : Ask in comment Editor : Emily aka vampirexdesire
Nomad
Posts: 291

Re: Slo-mo help

And here is my movie in slow MO :

https://www.youtube.com/watch?v=4CtVv0qDfKg
Explorer
Posts: 12,208

Re: Slo-mo help

@enc3ladus

Wow, is that all in 1080/240 on the HERO7 Black?  I could be wrong, but this looks a lot better than the HERO6 to me.  Seems to be more detail and less softness.

Hiker
Posts: 35

Re: Slo-mo help

If quality matters note 240fps modes do line skipping and the end footage is pretty bad quality (good for phoen size I suppose). 120 is ok though.

Nomad
Posts: 291

Re: Slo-mo help

First of all thank you Smiley Happy

 

Well, quality is a little bit off because of Youtube bitrate is too low so quality is hurting. I still figuring out how to setup my Sony Vegas to render in quality close to the source.

 

I promise next time will be better, first steps are always hard :)

 

 

 

Tourist
Posts: 4

Re: Slo-mo help

Danielr15:
1: GoPro hero 7
2: 0 experience editing
3: I don't have a video editor. I have the GoPro app and the quick app on my iPad and phone. What editor do you suggest. Are there free ones that are good or do I need to purchase one. If so which one.
4:I have a MacBook pro with macos high Sierra version 10.13.6. processor 2.7 GHz ibtelcore i5. Memory 8 GB 1867 MHz ddr3. 256 had
That's everything I can see on the about page of the computer
5: I have no freaking idea that's why I'm here
Thanks!