Doug James: Computer-generated sound catches its graphical sibling
The Future of Everything
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The Physics of Sound in 3D Space
The physics based approach is literally based on a model of how real sounds arise. You have to compute everything between the frames you hear all these oscillations at audio rates so like 20 kilohertz. So that's like if you're doing something at 24 frames and you want to compute at 24k now you have a thousand times more samples to generate. Almost everything we do in physics based animation needs to be able to make sound.
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