TUTORIALS17 min read
Deriving Sabine's and Eyring's Reverberation Time Formulas from First Principles
Step-by-step mathematical derivation of Sabine's T60 = 0.161V/A and Eyring's T60 = -0.161V/(S·ln(1-ᾱ)) from the diffuse field energy balance. With worked examples showing why Sabine fails at high absorption and when Eyring is the better choice.
March 14, 2026RT60Sabine equation