reverberation time

Reverberation time is the duration it takes for sound to fade away in a space after the sound source has stopped. It measures how long it takes for echoes to diminish to a certain level, typically one-millionth of the original sound's intensity. In rooms with many hard surfaces, sound can bounce around, creating longer reverberation times, which can affect clarity, especially in concerts or speeches. Ideal reverberation time varies depending on the space's purpose; for example, concert halls require longer times for richness, while classrooms need shorter times for clear communication.