Making a Video File React to Audio and HOLD position?

Sat Nov 03, 2018 2:28 am

Hey there Magic Music Forum!

My question isn't terribly complicated but it seemed like it would take ages to explain in text form. So here is a quick video I recorded that sums up my issue/question.

Here's the link if the player below doesn't load for you: https://youtu.be/VMeo_RY4Krw

Thanks so much!

Cheers,
Rikk

[media]
RikkWolf
 
Posts: 4
Joined: Sat Nov 03, 2018 2:16 am

Re: Making a Video File React to Audio and HOLD position?

Sat Nov 03, 2018 5:54 pm

Haha, I think that's the first "video question".

I can think of several different solutions, but the best ones involve separating your video file into individual image frames (as .jpg's or something). Then you can do a flipbook-style animation using the InputSelector module or the JpegFolder module (probably JpegFolder would be easier). In those cases, you would just make the Index param scale with the volume. Like this:
Capture.PNG
Capture.PNG (21.25 KiB) Viewed 322 times

The above example would be for 11 separate frames (0-10 inclusive), so obviously adjust accordingly. You may also need to do further adjustments based on the volume of your input, etc.

There are other solutions which have a varying balance of efficiency and complexity, but let me know how the above goes for you.
Eric
Site Admin
 
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Joined: Wed Apr 09, 2014 9:28 pm

Re: Making a Video File React to Audio and HOLD position?

Sat Nov 03, 2018 8:38 pm

Wow, thanks so much for the speedy reply, Eric! I totally overlooked the JpegFolder plugin, that's brilliant. We'll have to give you a special thanks during our next live stream!

That should be easy to export a sequence of jpegs right out of After Effects. I'll let you know how it goes and get back with you. Thank you again for your helpfulness and your time! :D
RikkWolf
 
Posts: 4
Joined: Sat Nov 03, 2018 2:16 am

Re: Making a Video File React to Audio and HOLD position?

Sat Nov 03, 2018 9:30 pm

That totally worked, Eric! We'll give you a shout out for sure.

My only question would be, for some reason I can't edit the "Index" setting. It doesn't seem to have any ill effects but I am curious about it.

I would be interested to know other ways of doing this, as I plan to also animate the eye and other things. Who knows what problems I might bump into. If you have the time, of course. Either way, thank you!
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Screen Shot 2018-11-03 at 4.14.23 PM.png
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RikkWolf
 
Posts: 4
Joined: Sat Nov 03, 2018 2:16 am

Re: Making a Video File React to Audio and HOLD position?

Sat Nov 03, 2018 10:33 pm

My only question would be, for some reason I can't edit the "Index" setting.

You can't manually edit a parameter when it's linked. Is that what you mean? https://magicmusicvisuals.com/downloads/Magic_UsersGuide.html#LinkingParameters
Eric
Site Admin
 
Posts: 2446
Joined: Wed Apr 09, 2014 9:28 pm

Re: Making a Video File React to Audio and HOLD position?

Sat Nov 03, 2018 10:54 pm

Ah, gotcha. My mistake. I'm still relatively new to Magic, if it wasn't abundantly obvious, ha ha.
RikkWolf
 
Posts: 4
Joined: Sat Nov 03, 2018 2:16 am

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