How to program a click stimulus?

Hello,

I am ok with matlab but I am not an expert into signal processing:

I would like to know, if someone could give me an example for an acoustic click stimulus?

Since a click contain every Frequency, I dont know how to program such a stimulus.

Thank you in Advance,

Paul

Answer 1

[Star Strider]

The Fourier transform of a square wave pulse is , 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).

Experiment with the code to get different desired results.

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[Paul Hinze]

Wow! I am very happy with your answer!

Thank you :)

[Star Strider]

Thank you!

As always, my pleasure!

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