The acoustical design of multi-purpose recording studios in existing buildings

Abstract

This paper is concerned with the design problems of recording studios in existing buildings. It gives practical recommendations for the sound insulation of walls and ceilings based, among other things, on the following curves: 1. (1) the permissible background noise levels in studios; 2. (2) outside traffic noise levels; 3. (3) the highest acceptable, normal design, and lowest practicable design reverberation times; 4. (4) the required inside/outside noise-level differences. The paper concludes with an illustrated description of the various stages of mounting the sound insulation and sound absorption materials in a studio, and gives the actual values of the transmission attenuation of a special double glass window and a double door.