Creating slow motion clip from GoPro Hero 7 Black 200fps to 25fps

John-Callahan wrote on 7/16/2019, 9:02 AM

I recently purchased a GoPro Hero 7 Black action camera. I am testing several settings including high frame rates to create slow motion clips. In 1080P I can film at 200fps. When playing back it appears as normal speed. In Vegas Pro 16 I see I can drag the timeline to ~8x width and do it this way (also set the playback rate to 0.125). However, I would like to have a simplified method to set the clip time to exactly 8 times the clip time. Is there a easy method for this or via a script which I can use? At the moment I use a spreadsheet to calculate the exact clip size based on filmed fps / rendered fps (taking into account the number of frames in the clip).

Comments

john_dennis wrote on 7/16/2019, 9:16 AM

Are you aware of this feature?

With 200 FPS source and Vegas Pro Project Properties set to 25 FPS, the video will be added to the timeline at 8X the real-time duration of the clip.

John-Callahan wrote on 7/16/2019, 10:37 AM

@john_dennis That did not work. I imported the 200fps clip, right clicked on it as per the image and selected 'Add at project frame rate'. Render will be the same clip duration, but at normal speed (1/8 of the number of original frames). If I set the properties in the clip to 0.125 playback, then I get the clip of the same duration, but only 1/8 of the frames at slow motion speed, which results in only rendering 1/8 of the all the original frames.

I appreciate the suggestion, but think I need someone which has used 200fps (or US 240fps) to create a slow-mo click at standard playback rate.

j-v wrote on 7/16/2019, 10:49 AM

Where did you import in?
Hardware, Project Media or Timeline?

John-Callahan wrote on 7/16/2019, 12:51 PM

@j-v - I have tried import from Import Media...(then context menu 'Add at Project frame rate') and also by drag and drop to timeline. Not sure what you mean by hardware. Where is there an option to add a clip via 'Hardware'? For my attempts the clip in timeline always has to be dragged to the right to the length I want it to be, as in a 1min 200fps clip I would have to drag the clip right side to 8min to spread all frames out evenly. I can do this and have been by calculating precisely so I get the most ideal spread, ensuring that one original frrame will fit in a whole frame at the new duration. This is not an ideal solution but do-able. I would hope that in the age of action cameras and other mirrorless cameras on the market, that Vegas Pro would make it easier to create slow motion clips.

j-v wrote on 7/16/2019, 1:54 PM

I mean with importing to hardware, importing to your hardware with Vegas Pro 16, desktop or laptop.The files are on your GoPro and working with such files on an connecting video device looks very hard to me.
With the GOPro 7 you can make indeed videos with 200 fps., only from FHD and lower dimensions.
I thnk you did something wrong .
Look how I do that and special not to accept the new projectsettings.
The video is made with my GoPro 7 at video 1920x1080 200fps and it stays in een new map on my laptop from signature.

John-Callahan wrote on 7/19/2019, 7:37 AM

j-v - At first I could not replicate your actions until I found a setting that I must have enabled:

After I re-enabled that option I can then select 'No' and I get the clip added with the correct slow motion settings.

Thanks for the video, it was helpful: bedankt voor alles

j-v wrote on 7/19/2019, 8:23 AM

OK, thanks for de terugmelding 👍😉
That setting is a default one, so you must it yourself having unchecked.

John-Callahan wrote on 7/19/2019, 10:00 AM

Yes, I probably did it when first playing around with the application. I quite often will tick a box that says not to prompt me again, but unfortunately this is a feature which I need to acknowledge each time or at least set it to 'No' by default.