movingrms [rmsx,w]=movingrms(x,w,rc,Fs=1) x: Real or complex valued vector or matrix w: Real or complex scalar value rc: Real or complex scalar value Fs: Real or complex scalar value This is an Octave function. The signal is convoluted against a sigmoid window of width w and risetime rc with the units of these parameters relative to the value of the sampling frequency given in Fs (Default value=1).