Wikipedia
An isolation booth is a device used to prevent a person or people from seeing or hearing certain events. On game shows, the isolation booth might be used to prevent contestants from hearing the other player's answers (such as on Twenty One, Family Feud, Win Ben Stein's Money, 50 Grand Slam, The $64,000 Challenge, and the CBS version of Double Dare), from hearing the audience ( The $64,000 Question, The $1,000,000 Chance of a Lifetime), from seeing moves or plays made by a player ( Whew!, Solitary) or sometimes for comedic effect only ( Idiot Savants). On The Money List, the players in a booth are only isolated when the booth is red.
Isolation booths are also frequently used in audio recordings, with non-reflective walls, lined with acoustic foam that eliminate potential reverberations.
Usage examples of "isolation booth".
You don't need an isolation booth with your nameplate on the door.
Let her pace in front of me just one more time, and I'll put her in an isolation booth and slap some restraints on her.
Mavis Freestone was in an isolation booth in the back, her hair a purple fountain, two scraps of glowing silver cloth strategically draped over her small, sassy body.
His smile fading, Woody propelled his wheelchair around behind the isolation booth, past the workbench and toward a door marked PRIVATE.
Can't fall out, can't see out, can't go out, I don't know where you are, Henry, but I'm in a goddam isolation booth.
The heat haze warped the monotonous red landscape and flat blue sky, as though they sat in an isolation booth made of antique glass.