Error with audio from pushbutton

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Monika Grezer
Monika Grezer 2022-4-27
编辑： DGM 2022-6-20
Hi! I am trying to make some pushbuttons in Matlab. When I press each pushbutton, I want that every one of them to play a sound. I have this error while pressing one of the buttons:
I get the same error for this line: x = A*s;. I am also plotting the graphs of each variable that I want to play as sound, and when I plot them, I don't get any error.
Could you please help me?
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Walter Roberson
Walter Roberson 2022-4-28
push3 assumes that global variable A has been set, but your code here does not set it. Your first function builds and returns A, without storing it in the global A.
Walter Roberson
Walter Roberson 2022-4-29
@Monika Grezer
You have that function
semnaleamestecate
that returns A as its second output.
In the place that you call semnaleamestecate you should be writing to the global A there (or in some calling function that you return A to.)

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Walter Roberson
Walter Roberson 2022-4-27
A = A ./ max(A(:));
My guess at the moment is that your A is empty.

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