๐๏ธ Reverb Time (RT60) Calculator
Sabine equation: RT60 = 0.161 ร volume รท (surface area ร average absorption coefficient)
Enter a room's length, width, and height along with its overall average absorption coefficient (0-1) to calculate the reverberation time (RT60 โ the time for sound to decay by 60 dB), using the Sabine equation widely used in acoustics. Handy for rough estimates of a recording space's acoustics.
How to use
- Enter the room's length, width, and height (meters).
- Enter the room's overall average absorption coefficient (0-1).
- The reverberation time (RT60) is calculated automatically.
FAQ
What's the formula?
The Sabine equation: RT60 (seconds) = 0.161 ร room volume (mยณ) รท total absorption (mยฒ, surface area ร average absorption coefficient). This is a standard approximation widely used in room acoustics.
How do I estimate the average absorption coefficient?
Hard surfaces like tile or concrete have low absorption coefficients (roughly 0.02-0.1), while rooms with lots of soft materials like carpet, curtains, and upholstered furniture have higher ones (roughly 0.2-0.4). Enter a rough estimate based on your room's overall mix of materials.
How should I interpret the result?
A typical home living room comes in around 0.4-0.6 seconds, while recording studio vocal booths often aim for shorter times (around 0.2-0.3 seconds). A longer time indicates a more reflective, "live" space.