How do I time shift an audio signal?

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Ahmed Elaraby
Ahmed Elaraby el 22 de Jun. de 2021
Respondida: Asvin Kumar el 24 de Jun. de 2021
So I've got this audio signal I've wanted to shift to the right but I can't seem to reach it.
I've tried adding zeros but no shifting occured.
load handel.mat
filename = 'handel.wav';
audiowrite(filename,y,Fs);
clear y Fs
[y,Fs] = audioread('handel.wav');
N = length(y);
t = (0:N-1)/Fs;
Z = zeros(N,1);
subplot(2,1,1);
plot(t,y);
xlabel 'Time'
ylabel 'Audio signal'
grid on
subplot(2,1,2);
Ynew = [Z;Fs];

Respuesta aceptada

Asvin Kumar
Asvin Kumar el 24 de Jun. de 2021
When you select the second subplot, you need to use the plot command again to plot the audio signal.
Here's a modified version of the code.
load handel.mat
filename = 'handel.wav';
audiowrite(filename,y,Fs);
clear y Fs
[y,Fs] = audioread('handel.wav');
N = length(y);
t = (0:N-1)/Fs;
delay2 = 3*Fs;
Z = zeros(delay2,1);
subplot(2,1,1);
plot(t,y);
xlabel 'Time'
ylabel 'Audio signal'
grid on
subplot(2,1,2);
Ynew = [Z;y(1:end-delay2)];
plot(t,Ynew);
xlabel 'Time'
ylabel 'Delayed Audio signal'
grid on

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