Loading .m file that is a String argument

I am trying to write a small program that repeats a sound N times. The sound files are already stored in their respective .m files. In my function, I have three input arguments:

in = String name of the .m file I want to play

N = number of repetitions

p = pause in seconds between each repetition

However, with my code, I am getting an error message that reads "Audio data must be real and floating point." I am confused, because I can play the sound file by writing commands in the command window just fine.

function out = repeatPause(in, N, p)

load(in);       
for j = 1 : N;          
    sound(in);        
    pause(p);           
end

And in the command prompt, to call this function I write:

repeatPause('sample.mat', 3, 5)

What could be the issue here? Is it because the String file name is not being passed through to the function when I call it?

[Stephen23]

Your code would be much mroe reliable if you load into a structure:

S = load(in);

and then access the data inside the structure S. Then you would avoid all of these problems.

https://www.mathworks.com/matlabcentral/answers/228557-experts-of-matlab-how-did-you-learn-any-advice-for-beginner-intermediate-users

Answer 1

[KSSV]

You have to replace sound(in) in with the variable in the sample.mat file. You are loading the file and using sound on the filename instead of variable.