An enclosure treated acoustically to provide controlled recording of music or speech. Professional sound-recording studios range from small home studios (such as a converted garage or basement) to large facilities using state-of-the-art equipment. They consist of two rooms, the main studio or stage (performance area) and the audio control room. The stage includes one or more microphones, is acoustically isolated to ensure that external sounds do not interfere with the recording, and can be broken up into small booths to separate individual performers. The audio control room contains the mixing console and recording devices.