Mercurial > hg > aimmat
annotate aim-mat/tools/@signal/generategauss.m @ 4:537f939baef0 tip
various bug fixes and changed copyright message
author | Stefan Bleeck <bleeck@gmail.com> |
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date | Tue, 16 Aug 2011 14:37:17 +0100 |
parents | 20ada0af3d7d |
children |
rev | line source |
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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 |