AudioLevel-to-VideoSpeed_with_OpticalFlow

How-To
1

Hi there!
What is the proper method to speed up image sequence or pre-rendered video file based on the audio level? I managed to do the trick - but I couldn’t inject the optical flow node into the graph - in order to have properly calculated motion-vector based in-between-frames for the speed-ups and slow-downs (according to the audio-level of the imported sound-file). Is there a global-switch for calculating in-between frames like it was in aftereffects? Or is there an alternate method to build this feature?

Many thanks in advance!
Cheers,
Ivo
audio_level_to_video_speed_with_oF|690x436

2

Hey there,

I don’t think we have a way to do slow motion effects just yet - that system you have there is a pretty good way to speed up time though.

Thanks,

Ryan

3

Thanks, by the way this was the end result - all done in Notch (ok, a bit like a COVID-times gitch) - After I finished it came to my mind just to put some music and I didn’t want to reopen the project - just to have some audio-sync.
https://vimeo.com/497744833

1 Like
4

Nice one!

I’ll make a note of it as something to discuss with the dev team, but it won’t be possible any time soon.

– Ryan

1 Like