Plotting an audio wave file

Why when i run the sample m-file uploaded, i got an error stating that a variable is undefined in the other two m-files i uploaded as well? Previously, when i run them in a combined script, no errors was displayed

Answer 1

[Star Strider]

I don’t see that you loaded the .wav file (that would be assigned to your ‘f’ variable) in any of those scripts. Perhaps in the combined scripts, it loaded the file.