Allpass Transfer Function If we unwrap the phase by removing the discontinuity, we arrive at the unwrapped phase function Ac(o)indicated below Note: The unwrapped phase function is a continuous function of o Unwrapped phase 15 -10 0.2 0.4 0.8 Copyright C 2001, S K Mitra15 Copyright © 2001, S. K. Mitra Allpass Transfer Function • If we unwrap the phase by removing the discontinuity, we arrive at the unwrapped phase function indicated below • Note: The unwrapped phase function is a continuous function of w q (w) c 0 0.2 0.4 0.6 0.8 1 -10 -8 -6 -4 -2 0 w/p Phase, degrees Unwrapped phase