Allpass Filter

Matlab code for allpass filter

function [b,a] = ALLPASS(r)
% ALLPASS
%
%  construct all pass filter
%

b = [-conj(r) 1];
a = [1 -r];

r = 0.8

r = 0.8 exp(2*pi*j/10)

Maintained by John Loomis, last updated 23 Oct 1997