im trying to remove random noise from audio signal and to play original signal what should i do to remove noise

load 'handel.mat' audiowrite('handel.wav',y,Fs); [y Fs]=audioread('handel.wav'); sound(y,Fs);%play original signal n=rand(size(y)); z=y+n;

[Kevin Chng]

I'm not familiar with this. But you may take a look at this link https://stackoverflow.com/questions/24195089/remove-noise-from-wav-file-matlab