I want to calculate snr of a signal, can i get the code?

I've been working with a signal with *.WAV format using wavelet toolbox in matlab toolbox, i'm denoising the signal using multivariate denoising tool, then i save the signal in *.mat format. I need to calculate SNR value, can i get the code? or if there are another ways (such as toolbox), can u tell me how to calculate it? i use matlab r2011a

Answer 1

[Stalin Samuel]

Signal-to-noise ratio signal-to-noise ratio

[Grienda Elan]

based on snr.m file code that i must have a noise file (in this case, i dont know it), im new in matlab, can you tell how to input my signal into that snr.m file?