A reverberation model based on objective parameters of subjective perception

The way in which we can determine the sound energy decay curve once the obj ective parameters of reverberation have been selected is addressed. The sel ected objective parameters are reverberation time RT, early decay time EDT, initial-time-delay gap t(I), objective clarity C-80, and strength of arriv ing energy G. These are known to represent the subjective perception of a r oom or concert hall well. The curve can be used in analyzing room character istics as well as in designing an artificial reverberator. In addition, a n ormalized room impulse response function is proposed. The way to obtain thi s function from measured data is also described. This can be used to put re verberation on "dry sound."