How to solve this error Index exceeds the number of array elements. Index must not exceed 198450. Error in quant (line 23) plot(t(zoom),Y2(zoom));

[Y,Fs] = audioread('signal1.wav');
info = audioinfo('signal1.wav');
t = 0:seconds(1/Fs):seconds(info.Duration);
t = t(1:end);
Y1 = upsample(Y,2);
Y2 = downsample(Y,2);
Y3 = upsample(Y2,2);
Y4 = upsample(Y3,2);
zoom = 200000:200000+length(t)/120;
subplot(6,1,1)
plot(t(zoom),Y(zoom));
title('Original Audio Signal')
ylim([-2 2])
soundsc(Y,Fs)
hold on
subplot(6,1,2)
plot(t(zoom),Y1(zoom));
title('Y1')
ylim([-2 2])
soundsc(Y1,Fs)
hold on
subplot(6,1,3)
plot(t(zoom),Y2(zoom));
title('Y2')
ylim([-2 2])
soundsc(Y2,Fs)
hold on
subplot(6,1,4)
plot(t(zoom),Y3(zoom));
title('Y3')
ylim([-2 2])
soundsc(Y3,Fs)
hold on
subplot(6,1,5)
plot(t(zoom),Y4(zoom));
title('Y4')
ylim([-2 2])
soundsc(Y4,Fs)
hold on
subplot(6,1,6)
plot(t(zoom),Y5(zoom));

Answer 1

[KSSV]

The error is simple amd striaght. You are trying to extract more number of elements than present in the array.

Example:

a = rand(10,1) ;   % array has 10 elements
a(1)   % no error
a(5) % no error
a(10)   % no error
a(11)  % error becuase arrays has only 10 elements and you are extracting 11th element

Similarly check the dimensions of Y2.