annotate aim-mat/tools/@signal/generategauss.m @ 4:537f939baef0 tip

various bug fixes and changed copyright message
author Stefan Bleeck <bleeck@gmail.com>
date Tue, 16 Aug 2011 14:37:17 +0100
parents 20ada0af3d7d
children
rev   line source
tomwalters@0 1 % method of class @signal
tomwalters@0 2 % function sig=generategauss(sig,pos,hight,sigma)
tomwalters@0 3 % INPUT VALUES:
tomwalters@0 4 % sig: original @signal with length and samplerate
tomwalters@0 5 % pos: medium of the curve
tomwalters@0 6 % hight: its height
tomwalters@0 7 % sigma: and its standart derivation
tomwalters@0 8 % produces a gaussian bell curve with the parameters
tomwalters@0 9 %
tomwalters@0 10 % RETURN VALUE:
tomwalters@0 11 % sig: @signal
tomwalters@0 12 %
bleeck@3 13 % This external file is included as part of the 'aim-mat' distribution package
bleeck@3 14 % (c) 2011, University of Southampton
bleeck@3 15 % Maintained by Stefan Bleeck (bleeck@gmail.com)
bleeck@3 16 % download of current version is on the soundsoftware site:
bleeck@3 17 % http://code.soundsoftware.ac.uk/projects/aimmat
bleeck@3 18 % documentation and everything is on http://www.acousticscale.org
bleeck@3 19
tomwalters@0 20
tomwalters@0 21 function sig=generategauss(sig,pos,hight,sigma)
tomwalters@0 22
tomwalters@0 23 vals=1:getnrpoints(sig);
tomwalters@0 24
tomwalters@0 25 evals=exp(-(pos-vals).^2/(2*sigma^2));
tomwalters@0 26
tomwalters@0 27 evals=evals*hight;
tomwalters@0 28
tomwalters@0 29 sig=setvalues(sig,evals);
tomwalters@0 30