| The problem of filter construction for the point to point impulse response in a room is examined. Infinite impulse response (IIR) filters are of particular interest in this regard. It will be shown that such filters can be constructed from image based models. The use of subband IIR filter models are 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. The transmission channel between a source and a receiver in a room is identified by the measure of it's impulse response. This is done experimentally using the cross spectral density analysis. |
