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A major-market, adult-contemporary radio station renovated a turn-of-the-century carriage house into offices and studios. Constraints imposed by the existing building shell included floor-to-ceiling heights and wood-frame construction. Acoustical performance was given top priority by the owner, to assure the finest broadcast facility possible. Special design techniques were used to provide adequate room-to-room insulation as well as insulation from exterior noise. Conflicting requirements included the second-floor location of studios and a large window in the on-air studio, facing a major city street. Mechanical equipment noise was adequately controlled despite many constraints imposed by space limitations of the existing building.

A suburban school district experimented with painting acoustic ceilings in a 25-year-old elementary school building in an attempt to improve the appearance of the deteriorating tiles. Several ceilings were painted using a latex primer and acrylic semigloss paint. Following complaints by teachers the painting program was suspended and other approaches were tried to increase absorption in rooms with painted ceilings and/or decrease the effect of painting in rooms still to be painted. Measurements of reverberation were made for each condition in an effort to correlate the effect of painting acoustic ceilings.

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