🏛️ Concert Hall RT60 Calculator (2D)

Sabine reverberation time — adjustable room & materials
Sound decay after clap (dB vs time)

Room dimensions

Length (L)32 m
Width (W)20 m
Height (H)12 m

Surface materials

Floorα 0.10
Wallsα 0.03
Ceilingα 0.04

Audience / seating

Seating typeα 0.85
Floor coverage70%
Coverage blends the chosen seating absorption with the bare floor material over that fraction of the floor area.

Impulse test

Live readouts

RT60 (Sabine)— s
Room volume V— m³
Total absorption A— sabins