The Fourier transform of a square wave pulse is 
, so use that to synthesise the click —
, so use that to synthesise the click — Fs = 44100; % Sampling Frequency (Hz)
t = linspace(0, 10*Fs, 10*Fs)/Fs; % Time Vector (s)
s = sin(2*pi*(t-5)*5000)./(2*pi*(t-5)*5000); % Click
% sound(10*s(:)*[1 1], Fs) % Listen!
figure
plot(t, s)
grid
xlim([4.995 5.005])
Since x is unbounded (the supoprt is 
) it contains essentially all the frequencies (at least up to the Nyquist frequency of the sound card, generally 22050 Hz).
) it contains essentially all the frequencies (at least up to the Nyquist frequency of the sound card, generally 22050 Hz). Experiment with the code to get different desired results.
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