function Hd = bandstop2500
%BANDSTOP2500 Returns a discrete-time filter object.

% MATLAB Code
% Generated by MATLAB(R) 9.9 and Signal Processing Toolbox 8.5.
% Generated on: 24-Mar-2021 17:32:55

% Elliptic Bandstop filter designed using FDESIGN.BANDSTOP.

% All frequency values are in Hz.
Fs = 8192;  % Sampling Frequency

Fpass1 = 2000;    % First Passband Frequency
Fstop1 = 2300;    % First Stopband Frequency
Fstop2 = 2700;    % Second Stopband Frequency
Fpass2 = 3000;    % Second Passband Frequency
Apass1 = 0.5;     % First Passband Ripple (dB)
Astop  = 60;      % Stopband Attenuation (dB)
Apass2 = 1;       % Second Passband Ripple (dB)
match  = 'both';  % Band to match exactly

% Construct an FDESIGN object and call its ELLIP method.
h  = fdesign.bandstop(Fpass1, Fstop1, Fstop2, Fpass2, Apass1, Astop, ...
                      Apass2, Fs);
Hd = design(h, 'ellip', 'MatchExactly', match);

% Get the transfer function values.
[b, a] = tf(Hd);

% Convert to a singleton filter.
Hd = dfilt.df2(b, a);



% [EOF]