anechoic

[ an-e-koh-ik ]

adjective

1. (of a recording chamber, television studio, or the like) characterized by an unusually low degree of reverberation; echo-free.

anechoic

/ ˌænɪˈkəʊɪk /

adjective

1. having a low degree of reverberation of sound

   an anechoic recording studio

Word History and Origins

Origin of anechoic¹

First recorded in 1945–50; an- ¹ + echoic

Example Sentences

In a proof of concept, a volunteer sat in an anechoic chamber—a room designed to block out surrounding sound or electromagnetic waves.

From Singularity Hub 

That’s how crystal clear the acoustics are in this anechoic chamber.

From Washington Blade