Room dimensions, base materials, and optional acoustic treatment coverage build frequency-dependent absorption. Sabine-s formula estimates T60 per band and overall, with a chart of decay across octave bands.
Key terms
Sabine T60 - T = 0.161 x V/A; A is total absorption in sabins.
Absorption coefficient (alpha) - fraction of energy absorbed per surface hit.
Octave bands - standard frequency groups for acoustic reporting.
Frequently asked questions
What T60 is good for a recording studio? Often roughly 0.3-0.5 seconds average, with balanced absorption across bands.