Simple Explanation

A room with little or no reverberation due to extensive sound absorption.

Concise Technical Definition

A highly absorptive acoustic environment where sound reflections are minimal or nonexistent, commonly used in measurement or testing scenarios.

Layman-Friendly Analogy

It’s like yelling into a pillow-filled closet — your voice doesn’t echo or bounce back.

Industry Usage Summary

Often found in acoustical measurement labs or studios designed for precise sound evaluation; however, overly "dead" rooms can sound unnatural for regular listening.

Engineering Shortcut

Lined with absorptive material like foam or fiberglass to reduce early reflections and reverberation time to nearly zero.

Full Technical Explanation

A "dead room" refers to a space with minimal or no reverberation, achieved by using a high amount of sound-absorbing materials. These environments eliminate reflections that could interfere with precise acoustical measurements. Common in anechoic chambers or audio testing labs, they are designed to simulate ideal recording conditions. However, in typical listening spaces, excessive dampening can make audio sound unnatural or lifeless, as it lacks the ambient character imparted by reflections.