[Randy Yates]

Enigma writes:

Hi.
I must implement a first-order allpass filter whose group delay in
seconds is the following function of the azimuth angle:
http://img359.imageshack.us/my.php?image=gdgp6.jpg
How can I implement this filter? What way I must fallow?
Is a simple filter controlled by one parameters.
Thanks.

There are many ways to skin a cat. You can use a truncated
sinc() to generate a fractional-delay filter on-the-fly that
is the given function of theta, e.g.
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%% Fuquay-Varina, NC % she does the things you do,
%%% 919-577-9882 % but she is an IBM."
%%%% % 'Yours Truly, 2095', *Time*, ELO
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