ToolHuts

Outils pratiques pour un travail de précision

Calculateur de RT60 & Temps de Réverbération

Estimez le temps de réverbération de Sabine et l'absorption totale nécessaire pour un objectif de décroissance modifiable.

m
m
m
sabins
s
Estimated RT600.29s
Room volume62.4m3
Absorption for 0.40 s25.1sabins
Additional absorption0.0sabins

A metric sabin is one square metre of perfectly absorbing surface. Real materials contribute area multiplied by their frequency-dependent absorption coefficient.

Fonctionnement

How to use it: enter internal room dimensions and estimated total absorption at the frequency band of interest. Set a target to estimate how much absorption that target requires.

Formula. Sabine RT60 = 0.161 x room volume / total absorption.

Example. A 62.4 m3 room with 35 sabins has an estimated RT60 of 0.29 seconds.

Exemple avec les saisies actuelles

Le résultat ci-dessus utilise exactement ces valeurs. Cet instantané est inclus à l’impression pour comparer la sortie aux mesures d’origine.

Room length
5.5 m
Room width
4.2 m
Room height
2.7 m
Total absorption
35 sabins
Target RT60
0.4 s

Résultat principal: Estimated RT60: 0.29 s.

Avant d’utiliser le résultat

  • Measure from the datum or reference edge described by this tool, and do not mix inside, outside and centerline dimensions.
  • Keep inputs in the displayed units and preserve more precision than the final cutting or purchasing tolerance requires.
  • When the result is close to a limit, verify it with a test piece, field measurement, manufacturer drawing or qualified project professional.

Limites

Sabine assumes a diffuse sound field and reasonably even absorption. Small rooms, sparse treatment, low frequencies and highly absorptive rooms can depart substantially. Use band-specific material data and confirm with a calibrated decay measurement.

Questions fréquentes

What RT60 should a home theater have?

There is no single universal target. Room size, listening use and measurement band matter, so compare against a considered design target rather than treating one number as a pass or fail.