how to use/load the separate voice i labeled ?(new learner)

Answer 1

[Kartikay Sapra]

You can go through the audioread documentation, see here https://in.mathworks.com/help/matlab/ref/audioread.html.

[y, Fs] = audioread('weixin.mp3')

Here, for this audio file, y will be your sample data and Fs is the sample rate