my data is 2 signals at the same time period, how to plot the trace representing the convolution between the two signals?
MATLAB: Convolution trace of two signals
convolution traceplot
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Try this:
numPoints = 1000; % Whatever.
f = .10; % Whatever.tau = 2; % Whatever.t = linspace(0, 4*pi); % Whatever.u = sin(2*pi*f*t);g = exp(-t/tau);out = conv(u, g, 'full');% Plot u
subplot(3, 1, 1);plot(t, u, 'b-', 'LineWidth', 2);grid on;xlabel('t', 'FontSize', 12);ylabel('u', 'FontSize', 12);% Plot g
subplot(3, 1, 2);plot(t, g, 'b-', 'LineWidth', 2);grid on;xlabel('t', 'FontSize', 12);ylabel('g', 'FontSize', 12);% Plot out
subplot(3, 1, 3);% plot(t, out, 'b-', 'LineWidth', 2); % Would need to compute the new t if you want this.
plot(out, 'b-', 'LineWidth', 2); % Just plot vs. index.
grid on;xlabel('t', 'FontSize', 12);ylabel('out', 'FontSize', 12);% Enlarge figure to full screen.
set(gcf, 'Units', 'Normalized', 'OuterPosition', [0, 0.04, 1, 0.96]);
First of all, this
f=8000; b=8;is useless information because it will be rewritten anyway below, unless this information is given to you and you don't fully describe the required task. ASSUMING that your professor wants you to perform convolution of the recorded signal with itself, you can perform this:
[s1,f]=wavread('C:\Users\N\Desktop\family.wav');s2 = conv(s1(1,:),s1(1,:)); %using all columns from the first row
subplot(2,1,1)plot(s1(1,:))subplot(2,1,2)plot(s2)Of course, the resulting signal will be nothing like the initial signal.
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