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Volume 107, Issue 6, June 2000
- ARCHITECTURAL ACOUSTICS 
107(2000); http://dx.doi.org/10.1121/1.429397View Description Hide Description
The spatial correlation function of the sound in a diffuse field is a quantity widely used in many reverbrant room acoustic applications. Although results for the spatial and temporal correlation for pure-tone and band-limited diffuse fields have already been developed, these have not been generalized for other signal types. This work presents a generalized derivation of the diffuse field spatial-temporal correlation which can be used for stationary random signals with given power spectral density. It is shown that the spatial-temporal correlation depends entirely on the temporal correlation of the signal exiting the diffuse field, or alternatively on its power spectral density. A simulation using the plane wavemodel is presented for tonal and broadband diffuse sound fields.