MATLAB: How use filter from filter designer

Question

Dumb question here.

I created a bandpass filter in Filter Designer by generating the matlab code and stored the filter.

Now, how do I actually use it to process my signal. Below is the code generated.

Thanks

% All frequency values are in Hz.

Fs = 5000; % Sampling Frequency

Fstop1 = 2; % First Stopband Frequency

Fpass1 = 5; % First Passband Frequency

Fpass2 = 1000; % Second Passband Frequency

Fstop2 = 1200; % Second Stopband Frequency

Astop1 = 30; % First Stopband Attenuation (dB)

Apass = 1; % Passband Ripple (dB)

Astop2 = 30; % Second Stopband Attenuation (dB)

match = 'passband'; % Band to match exactly

% Construct an FDESIGN object and call its BUTTER method.

h = fdesign.bandpass(Fstop1, Fpass1, Fpass2, Fstop2, Astop1, Apass, …

Astop2, Fs);

Hd = design(h, 'butter', 'MatchExactly', match);

Answer 1

y = filter(Hd,x);

x is the signal that you want to filter.