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Tutorial: building an audio visualizer in python

14
By on Videotutorials

Blendercookie.com published their new video tutorial for Blender 2.5 demonstrating how to build an audio visualizer Blender and to let python drive the animation F-curves of those meshes with the wave elements of an audio input. This looks pretty spectacular.

Here is a short project description from their website:

In this Blender 2.5 video tutorial, we will be taking a look at how to use sound to drive an object’s scale.

We will be building a ‘field’ of cubes, each of which will pulse along to certain frequencies of a song.

What is covered in this tutorial:
- Baking sound to F-curves.
- Programatically creating an N-by-M matrix (field/ grid)
- Setting a keyframe and baking F-curves from Python
- Finding out which frequencies to use using Audacity

Note: In recent SVN versions the API has been updated. If you’re using one of these later versions please be sure to replace “bpy.ops.object.scale_apply()” with “bpy.ops.object.transform_apply(scale=True) ”

For more go to: www.blendercookie.com/building-an-audio-visualizer-in-python

14 Comments

  4. Cmitz on

    Yeah, I have tried that one...
    Only problem is that my blender build always crashes when running it.
    And nobody seems to know why :')

    Reply
  5. Cmitz on

    Ja, ich habe, dass man versucht, ... Das einzige Problem ist, dass mein Mixer zu bauen immer abstürzt, wenn es läuft. Und niemand scheint zu wissen, warum: ')

    Reply
  7. machbauer on

    @Cmitz

    What build do you use, and what for?
    Doesn't it work with the official one?
    Maybe you could post your blend-file somehow, with Dropbox or something similar, to see what is wrong..

    Reply
  9. zson on

    Dang...Will have to wait till tomorrow to post the blend as i just transfered the file to my external. Also, made a mistake...i used blender 2.57b

    Reply
  11. archaic on

    Hey guys, i know this isnt the right spot bug can someone please point me to a place where i can get help writing a python script. Im trying to write one for an similar audio visualization. A disco type floor. any help would be appriciated.

    Reply

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