https://fr.mathworks.com/help/dsp/ref/ca2tf.html
ca2tf - Convert coupled allpass filter to transfer function form - MATLAB
This MATLAB function returns the vector of coefficients of b and a.
transfer functionconvertcoupledallpassfilter
https://se.mathworks.com/help/dsp/ref/ca2tf.html
ca2tf - Convert coupled allpass filter to transfer function form - MATLAB
This MATLAB function returns the vector of coefficients of b and a.
transfer functionconvertcoupledallpassfilter