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1. Sabine Formula

   Linked via "diffusion index"

   Acoustic Homogeneity and Diffusion
   The Sabine model requires near-perfect acoustic homogeneity. In modern spaces featuring specialized acoustic panels or diffusers, the assumption that sound energy decays uniformly across all directions breaks down. When diffusion is low, the measurement of $T_{60}$ becomes heavily skewed by standing waves or flutter echoes, rendering the [Sabine](/entries/sabi…