Cinelerra Tutorial: Slow and Fast Motion

[SkaterCriminal]

my audio doesn't match with my video. the Audio is like a second later then my video and that isn't so good with a skate video (sorry for bad english im from holland).

[phillipjamesbag]

can you do ramped slow mos to reverse then speed up in a fluid motion kinda like in avid media composer?

[kafkaian]

I've almost gone through all of these Cinelerra videos now and they've all been really helpful. So thanks to vaasnaad for posting them. I for one am really grateful to those who take their own time out to help others and get really racked off by a vocal minority who criticise for the sake of it. Keep up the good work vaasnaad and regards from across the pond, Ian

[neverhood311]

Sorry if you've gotten this question before, but I have a 720p clip at 60fps but I want to resize it to 480p and slow it down to 24p (technically 23.976) so it's in slow motion. Would I just use the reframeRT plugin and set the speed to 0.4 (24fps / 60fps)?

[h1ll37]

thanks :)

[IceFritzLanger]

Thanks =)

[gandrewstone]

this is great! But I'm stuck on how to stop the fast/slow motion. I mean, I only want a section of the video to be in fast motion. Do you know how to do that?

[vaasnaad]

Thanks! Just highlight the section you want to be in slow/fast motion and apply the effect to that area. Remember that you'll be dragging the effect, not the clip, to adjust the ACTUAL time things are affected. So you'll drag it longer for slow and drag it back for fast. Hope that made sense.

[gandrewstone]

Your comment helped me figure stuff out. If I select 2x for 30 sec starting at 0 it would play a recorded-time 1 min in 30 seconds. Then when the ReframeRT effect is gone it pops back to where it would have been if the effect had not been applied.(i.e. at recording-time 30 sec). But I've already seen that portion in fast-speed. Not good. So you must add a new track ABOVE it with the clip you want to see. Stumped on how 2 do in 1 track!

Your videos make Cinelerra usable! Keep it up!

[IceFritzLanger]

@gandrewstone

May be you figured it out, but it could help other people seeing this video

Use the text cursor mode, select the section you want to alter, add the effect Reframe RT .( All the effects could be applied like this, but when you want to change them after, you must double click on it to alter th whole section, or it will change only one frame )

[MegaAfroGuy]

nice. can you do it in kdenlive ?

[vaasnaad]

Probably... might want to ask Arthur at Arthursucks channel. I haven't messed with Kdenlive but I think I"m about to start... :-)

[sadcanofbeans]

@vaasnaad

kdenlive is nowhere near as stable as cinelerra, unfortunately. it's a great package, but under ubuntu 10.04 in my case at least, there's problems with everything from the clip/project monitor going entirely blank to odd visual artifacts being encoded into your final project depending on the format you used -initially-. It looks like it's going to be great in a few more point releases, but i switched back to cinelerra after trying and failing at working around the issues.

[budgiebreder]

"i don't know how to make the chipmunk audio..."

if you don't know how to do that now you use the "pitch shift"effect. i use it on my videos where i think youtube will disable the sound. but that's about the only effect i know how to use! (hence that i'm watching this video!) thx again for all your help!

[vaasnaad]

Oh yeah! I was thinking more of the fast motion stuff, thanks for clarifying that! Yes, I used pitch shift too when I did that "By all the ice gods of hell!" thing in my first video! LOL

I also use it for my flash sound effect - it's an old style flash bulb reversed and shifted down as far as I could crank it.

[budgiebreder]

lol got a download for said effect? (and any others) i like ya effects that i see here and there in ya videos! i'm

ps: you combine the two effects (speed/pitch) for the chipmunk version lol so-far whenever i've done it i end up with a really weird part at the end where it repeats the last second or so of the song about 2 secs after the actual thing ends - explain that? eg my "contest time" video

[budgiebreder]

i'm curious what program do you use to film your screen?

[vaasnaad]

GTKRecordmydesktop It's great - saves as an OGG file which I render to DV in Cinelerra to make it easier to work with. I had lots of sync problems till I updated my video driver, now it seems pretty smooth at 30fps and 44KHz audio sample rate.

[budgiebreder]

can you make a tutorial of how to use that? i already have it but i have no idea how to use it lol

[vaasnaad]

Gotbletu actually already has a great one on his channel... it's actually the one I used to finally get my screencast going. I'll send you a link!  Of course be prepared for the usual profanity... lol

[gfpfan]

awesome as usual, thanks

[vaasnaad]

You are too welcome! And thank you! :-)

[Gurktheburp]

He mentioned my name!! XD

Nice one man, hopfully I can get started on this cheesy montage I'm planning.

[vaasnaad]

Can't wait to see it, especially if it's as funny as some of the other stuff. I did something truly awful in the way of slow motion montages. Think pre-Jackass and Raab. And Chariots of Fire.