Comparison of pole-zero and all-zero modelling of acoustic transfer functions
Sigmund Gudvangen, Stuart J. Flockton · Electronics Letters · 1992
Echo cancellation in teleconferencing systems or loud speaking telephones requires the modelling of acoustic transfer functions of rooms. It might be expected that for reverberant acoustical situations a pole-zero representation would be much more economical than an all-zero one. It is shown that this is not the case.