Interrogation rooms should be windowless, soundproof, dark and without toilets. However, the rooms also contain modern amenities such as blackout curtains and multiple-pane soundproof windows. Morrow also designed a series of soundproof listening rooms for the Record Rental Library. The room had no windows and was soundproof. The lighting is soft and romantic, the walls and windows soundproof. It features natural lighting, which streams in through 30 soundproof, double-paned clerestory windows. ABC completely rewired for all electrical and video and sound equipment and soundproof booths. Soundproof upholstery is installed, as is separately-adjustable heating and ventilation systems. In a back room he discovers a soundproof torture chamber. The Luison's silencer is wrapped in a rock-based mineral fibre to help insulate and soundproof. It was built with soundproof windows to block aircraft noise. Viola is interrogated and tortured, with Todd watching from a soundproof room. They took exception to the atmosphere inside the studio with soundproof padding and isolators. Other facilities include a Recital Hall, soundproof Music Studios and Dance Studios. The USOS quarters are private, approximately person-sized soundproof booths.