# Acoustics - Reverberation Time (Sabine Formula)

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**Formula:**`RT₆₀ = 0.161 * (V / A)`

## Introduction to Reverberation Time (Sabine Formula)

The Sabine Formula for Reverberation Time is a widely used equation in acoustics to estimate the reverberation time within a space. The formula calculates the time taken for sound to decay by 60 decibels after the sound source ceases. In this formula, ** RT₆₀** represents the reverberation time,

**is the volume of the space, and**

*V***is the total absorption of the space.**

*A*## Parameter usage:

`V`

= volume of the space (cubic meters)`A`

= total absorption of the space (sabins)

## Output:

`RT₆₀`

= reverberation time in seconds

## Data validation

The volume must be a positive number (greater than zero), and the absorption must be a non-negative number.

## Summary

This formula helps in estimating the acoustic properties of a space based on its volume and total absorption, providing valuable insight for architectural and acoustic engineering design.