a measure of the acoustic properties of a room, equal to the time taken for a sound to fall in intensity by 60 decibels. It is usually measured in seconds
WordReference Random House Unabridged Dictionary of American English © 2025
reverbera′tion time′,
- Physicsthe time it takes for a sound made in a room to diminish by 60 decibels.
- 1925–30
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