Auditory animations

Hi all,

I just posted in the python scripts section about my add-on to create auditory renders of Blender scenes. I have created two videos that show how the addon can be used:

  • http://youtu.be/YnzWnTX8eZE in which a visitor walks through a room with piano music into another room. Pay attention to how the acoustics of the spaces articulate the footsteps differently and how the piano music attenuates.
  • http://youtu.be/b-HlI-zbqzU which is just a very reverberant hall.

The addon is freely available, I am pretty sure you will be able to create much nicer animations with it.

Kind regards,
Thomas

Wow, this looks amazing! Is it possible to make stereo sound with this add-on?

Thanks! (I hope you mean it sounds amazing though :P)

But yes, there indeed is a stereo listener as well. I’ll try to create an example with it too.

That was exactly what I meant, sorry :P. I would be very grateful if you could post a stereo example then… How well does this perform on open spaces? And also, how does it work exactly? I suppose you need place objects in the 3d scene that act as sound sources. Do you have to assign the ‘reflectivity’ value on the materials of the room?

I created a video with stereo effects. Overall the stereo effects are rather subtle (I think because of the enclosing walls omni-directional reflection quickly get the upperhand). But if you watch it towards the end, I think the ball bouncing towards the middle is quite noticeable.

I’ve also updated the addon, you can find it on github: https://github.com/aothms/ear/downloads

How well does this perform on open spaces?
It depends on your purpose. Sound tends to behave a little quirky with large volumes of air, like reflections against layers of air with different temperatures. These are hard to model, but otherwise things work as expected.

I suppose you need place objects in the 3d scene that act as sound sources. Do you have to assign the ‘reflectivity’ value on the materials of the room?
Exactly. In this sense it is very similar to a visual ray-tracer, there is a reflectivity, transmittance and specularity property for the materials. Give it a try!