RT60 is the standard metric measuring reverberation decay in a space. It represents the duration in seconds for sound energy to drop 60 dB. Ideal RT60 for control rooms is 0.2s to 0.4s, while home theaters target 0.3s to 0.5s.
Acoustic Physics Formula
In-Depth Acoustic Principle
Calculated using Sabine or Eyring equations, RT60 depends on total room volume (V) and total absorption units (A) provided by walls, furniture, and porous acoustic panels.
- ISO 3382-1: Performance measurement of reverberation time
Calculate RT60 (Reverberation Time) for your room
Use our free physics solver to get exact frequencies and placement specs.