This is from a fast-multipole boundary element method sound-hard acoustic simulation of the CNMAT 12-sided dodecahedral loudspeaker.

Geometry, ~3000 triangles. Active speaker is green pointing towards +X axis.

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Bubble plot, linear amplitude of response on a sphere at 2 meters, 1khz.

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XY planar slice, contour lines are -6db steps.

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Attachments
Image icon dodec-geometry.png