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reverberation time
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reverberation time

acoustics
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Reverberation time is a key concept in architectural acoustics, referring to how long sound persists in a space after the source stops. It's defined as the time it takes for the sound intensity to decrease by 60 decibels. This phenomenon is influenced by the room's volume and the sound-absorbing properties of its surfaces.1

The formula RT = 0.05V/ A helps predict reverberation time, where V is the room's volume and A is its total sound absorption. Different materials absorb sound to varying degrees, affecting the overall absorption.1

Reverberation time impacts a room's acoustic qualities: a long reverberation time creates a "live" sound, suitable for certain music, while a short time provides clarity, essential for speech. The ideal reverberation time varies depending on the room's intended use.21

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2 Britannica Sources
  1. acoustics - Reverberation time
  2. acoustics - Acoustic criteria

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