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Thread: Brightness shift according to audio?

  1. #1

    Default Brightness shift according to audio?

    Using either Premiere, or After Effects.

    I'm looking for an easy way to have a flashing video, in which the brightness is according to the audio - EG, the louder the beat, the brighter and longer the flash.

    Commercial Plugins are fine, but I fear that such a file does not exist.

    Any ideas?

  2. #2

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    You can do it in premiere but manual there might be another way that i'm not aware off .
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  3. #3

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    I'm aware you can do it manually, by changing the brightness in each frame - but I was wondering if there was an alternative, automated method.

    Thanks.

  4. #4

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    I hope there is, I would like to know it too maybe someone else have an idea .
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    http://rdinis_video.blogs.sapo.pt

  5. #5

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    Yeah, there must be a plugin somewhere. It really can't be too hard to code - and I'm sure it'd be a really popular plugin.

    Does anyone else have any ideas?

  6. #6

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    In after affects write an expression to link the audio to brightness, or use trapcode sound keys...

    only guessin though but it should be easy enough.


    *** edit** on second thoughts use trapcode to generate the key frames, then create an expression to match those keyframes with brightness.
    Last edited by innocent_bystander; 05-16-2008 at 01:41 PM.

  7. #7

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    Quote Originally Posted by innocent_bystander View Post
    In after affects write an expression to link the audio to brightness, or use trapcode sound keys...

    only guessin though but it should be easy enough.


    *** edit** on second thoughts use trapcode to generate the key frames, then create an expression to match those keyframes with brightness.
    Sounds like that could work!

    How would I go about creating an expression, however? I'm pretty new to After Effects and Premiere.

  8. #8

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    these tutorials may help:

    Using Expressions to Create a Volume Meter : Adobe After Effects Tutorial
    Creating an Animated Volume Meter : Adobe After Effects Tutorial

    perhaps not excatly want you want, but the same prinicables will apply.
    I've never tried doing such a thing, but like a said it shouldnt be super difficault.


    Although Im probably over-complicating it!
    Last edited by innocent_bystander; 05-16-2008 at 03:46 PM.

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