In this paper sound field properties are discussed that are typical for small rooms rather than large. A first distinction between both types of rooms may be derived from the applicability of geometrical acoustics. Probably more relevant is the distinction by Schroeder`s formula, which separates the range of large rooms-high frequencies from that of small rooms-low frequencies. In both these ranges, the densities of eigenfrequencies lead to different characteristics of both the frequency response and sound decay.
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