A Numerical Investigation of the Representation of RoomTransfer Functions for Arti cial Reverberation

In this paper we try to establish the system order for the correct representation of a set of room transfer functions (RTF), in order to partition memory between the common recursive part and the non-recursive part specialized for each RTF. To this end, we apply a few system theory concepts on a set of simulated rectangular rooms, whose impulse responses were generated using the image method [1]. A further validation of our results is provided by an analysis of the frequency density of a comblter modeling of the recursive part.

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