mathieu@14: function s = maxWindowEBR(fg, bg, offset, fgScale)
mathieu@14: % Computes the maximum EBR on 1/4s windows of a FG relative to a BG when
mathieu@14: % that FG is at a given position in time.
mathieu@14: % Optional argument fgScale allows to compute what the EBR would be if FG
mathieu@14: % was scaled by that much.
mathieu@14: 
mathieu@14: % This program was written by Mathias Rossignol & Grégoire Lafay
mathieu@14: % is Copyright (C) 2015 IRCAM <http://www.ircam.fr>
mathieu@14: %
mathieu@14: % This program is free software: you can redistribute it and/or modify it
mathieu@14: % under the terms of the GNU General Public License as published by the Free
mathieu@14: % Software Foundation, either version 3 of the License, or (at your option)
mathieu@14: % any later version.
mathieu@14: %
mathieu@14: % This program is distributed in the hope that it will be useful, but
mathieu@14: % WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
mathieu@14: % or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
mathieu@14: % for more details.
mathieu@14: %
mathieu@14: % You should have received a copy of the GNU General Public License along
mathieu@14: % with this program.  If not, see <http://www.gnu.org/licenses/>.
mathieu@14: 
mathieu@14: if (nargin==3) fgScale=1; end
mathieu@14: len=10000;
mathieu@14: for k=1:floor(2*length(fg)/len)
mathieu@14:     t1 = (len/2)*(k-1)+1;
mathieu@14:     t2 = min(t1+len-1, length(fg));
mathieu@14:     if (t2-t1>10) snrs(k) = snr(fg(t1:t2), bg, offset+t1, fgScale); end
mathieu@14: end
mathieu@14: s = max(snrs);
mathieu@14: end