annotate aux/MS2LR.m @ 9:ee22af6610a3

Sanitised user ID, end message, bug fixes.
author Brecht De Man <b.deman@qmul.ac.uk>
date Sun, 30 Nov 2014 21:44:03 +0000
parents 4fd284285159
children
rev   line source
b@0 1 function y = MS2LR(x)
b@0 2 % LR2MS Converts stereo audio signal to MS (mid side).
b@0 3 %
b@0 4 % by Brecht De Man at Centre for Digital Music, 4 June 2013
b@0 5
b@0 6 if size(x,2) ~= 2
b@0 7 error('Function MS2LR needs a stereo audio input file.');
b@0 8 end
b@0 9
b@0 10 y = zeros(size(x));
b@0 11
b@0 12 % L = (M + S)/2, R = (M-S)/2
b@0 13 y(:,1) = (x(:,1)+x(:,2))/2; % left channel
b@0 14 y(:,2) = (x(:,1)-x(:,2))/2; % right channel
b@0 15
b@0 16 end