AUDFILTBW - Bandwidth of auditory filter.

Program code:

function bw = audfiltbw(fc)

%   AUTHOR : Peter L. Soendergaard

% ------ Checking of input parameters ---------

error(nargchk(1,1,nargin));

if ~isnumeric(fc) || any(fc(:)<0)
  error('AUDFILTBW: fc must be non-negative.');
end;

% ------ Computation --------------------------

% FIXME: What is the upper frequency for which the estimation is valid?

bw = 24.7 + fc/9.265;