There is also a way of reading only part of the file if you are memory-bound.
https://www.mathworks.com/help/matlab/ref/audioread.html

audioread
Syntax: [y,Fs] = audioread(filename,samples)
Description: [y,Fs] = audioread(filename,samples) reads the selected range of audio samples in the file, where samples is a vector of the form [start,finish].