Infinite impulse response-based simulation of room acoustics

In this work, the problem of filter construction for the point-to-point impulse response in a room is examined. Our particular interest is infinite impulse response (IIR) filters. It will be shown that such filters can be constructed from image-based models. The use of subband IIR filter models is investigated. Our model provides perfect reconstruction of early arrivals. The late arrivals in the impulse response are in agreement only in the least-squared sense. Experimental results will be given for the room impulse response.