Add Gaussian noise to the signal

[y,Fs] = audioread('AC-1.wav');
n = (397321,1)
a = [x,t];
plot(a)

Hello,

I am struggling to understand exactly how to solve the problem listed below. I am not sure how to add Gaussian noise to my signal. I have tried to figure this out on my own but I just cannot seem to crack this code. All of the code so far is listed above as well.

Answer 1

[Image Analyst]

Hint: use size(), the plus symbol, +, and the expression they gave you at the very end of the instructions.

y = y + std * randn(size(y));

[Adam Carroll]

Inserting this into my code gives me an error and I am not sure what to do now.

[Image Analyst]

Unfortunately you

1. Forgot to give the complete error message (all the red text)
2. Forgot to attach your code
3. Forgot to attach 'AC-1.wav'

thus causing a delay. Please read this link and let me help you.

[Adam Carroll]

Hey!

Sorry about that, your information actually did help me to solve the problem. Thank you for your help and I will try and make sure my question helps out the whole communities understanding next time!

Thanks again,

Adam