_,_, ... : synDecorrelation(N, d, wf, fa, fd, tf) : _,_, ...
Where:

N: the ambisonic order (constant numerical expression)
d: the maximum delay applied (in samples)
wf: window frequency (in Hz) for the overlapped delay
fa: decorrelation factor (between 0 and 1)
fd: feedback / level of reinjection (between 0 and 1)
tf: type of function of delay distribution (integer, between 0 and 21)