RMS amplitude

How can I divide a sound wave by its rms amplitude?

Answer 1

[Geoff]

I gave an answer today that required an RMS calculation.

http://www.mathworks.com.au/matlabcentral/answers/35658-how-can-i-calculate-the-signal-to-noise-ratio-snr-of-a-signal

You can make a throw-away function for RMS:

RMS = @(x) sqrt(mean(x.^2));

And then to answer your question:

signal = signal / RMS(signal);

[dpb]

Stumbled on this from suggested links -- beginning with R2012a the Signal Processing TB contains rms which was subsequently moved into MATLAB proper with R2022a.