On Wednesday, August 11, 2021, Andrea paz <gamberucci.andrea@gmail.com> wrote:
For the great confusion I'm making (I apologize!), I can't even find
the "0001-Add-hidden-fast-slow-playback-preference.patch".

guess i send them too fast! 

right now patch in current git [0], so you can just build from that, and see how this feature works (hopefully it will not break anything) 

[0] http://git.cinelerra-gg.org/git/?p=goodguy/cinelerra.git;a=commit;h=e9cdcb62fbd9794a368f11e7808c6ddf83fbd467