Calcolatore Assorbimento Acustico — Formula

Room Sound Absorption

Total absorption determines how quickly sound energy is removed from a room.

Formula

A = sum(S_i * alpha_i)

  • *S_i* = area of surface i
  • *alpha_i* = absorption coefficient (0 = perfect reflection, 1 = perfect absorption)

    • This value feeds into the Sabine equation for reverberation time.

    Esempio Risolto

    Room with concrete walls (100 m2, alpha=0.05), carpet floor (80 m2, alpha=0.3), acoustic ceiling (50 m2, alpha=0.6).

    1. A = 100*0.05 + 80*0.3 + 50*0.6
    2. A = 5 + 24 + 30 = 59 m2 Sabine
    3. Average alpha = 59 / 230 = 0.257