Many modern studios are confronted with problems of room acoustics which call for sophisticated solutions. Rooms for quadrophony and multiphony involve several symmetries and require high absorption. Rooms with spatially and continuously varying acoustics present design difficulties. The low-frequency performance and microstructure of reverberation curves can no longer be ignored. Different criteria for music, speech, and background noise as well as fashion trends in reverberation impose limits on the possibilities of room acoustics when space or investment has to be taken into account. Meeting acoustical engineering requirements in the case of high transmission loss (and impact noise control) and of air-borne and solid-borne sound introduces additional constraints into the design. Several cases are discussed and an acoustical check list (of design priorities) is presented.
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