Loading .m file that is a String argument

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LBZ27
LBZ27 2017-4-26
编辑： Stephen23 2017-4-26
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?
  1 个评论
Stephen23
Stephen23 2017-4-26
编辑：Stephen23 2017-4-26
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

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回答（1 个）

KSSV
KSSV 2017-4-26
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.

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