Room Acoustics: Prediction

Room acoustics prediction, in general, is the process where, using geometrical acoustics, octave-band echograms are predicted based on a 3D CAD model of a room. Frequency dependent material properties (absorption, scattering and transmission coefficients) are assigned to room surfaces and frequency dependent source directivities are assigned to sound sources. From this information echograms and a great number of numerical measures of e.g. speech intelligibility, and reverberation times can be estimated. It is also possible to post-process the echograms to create room impulse responses for Auralization.