How to multiply array by -1?

I want to invert all the values in the array by -1.

[x,fs] = audioread('400hz.mp3'];

y=-1*x;

soundsc(y,fs);

[Stephen23]

Simpler:

y = -x;

Answer 1

[Sai Veeramachaneni]

Hi,

You can use y = -x or y = -1.*x