Abstract

Mie-resonant-scattering from objects (of sizes similar to impinging waves) embedded in a plane surface has two aspects: it distributes sound into a pattern approximating a cosine law of diffuse reflection; it deconstructs phase relations among components comprising acoustic signals. The former is much better known than the latter. But in large rooms like concert halls, phase-preserving specular reflections constitute echoes, compromising musical information. Deconstructing phases of reflected musical signals by diffuse reflection confines temporal information to direct sound, presenting only the frequency spectrum in reflected sounds.

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