ivan@138: function snr = SNR(xRef,xEst)
ivan@138: % Signal-to-noise Ratio
ivan@138: %
ivan@138: % Usage: snr = SNR(xRef,xEst)
ivan@138: %
ivan@138: %
ivan@138: % Inputs:
ivan@138: %          - xRef - reference signal
ivan@138: %          - xEst - estimate signal
ivan@138: %
ivan@138: % Outputs:
ivan@138: %          - snr - SNR
ivan@138: %
ivan@138: %
ivan@138: % -------------------
ivan@138: %
ivan@138: % Audio Inpainting toolbox
ivan@138: % Date: June 28, 2011
ivan@138: % By Valentin Emiya, Amir Adler, Maria Jafari
ivan@138: % This code is distributed under the terms of the GNU Public License version 3 (http://www.gnu.org/licenses/gpl.txt).
ivan@138: % Signal to noise ratio (SNR)
ivan@138: 
ivan@138: % Add eps to avoid NaN/Inf values
ivan@138: snr = 10*log10((sum(abs(xRef(:)).^2)+eps)/sum((abs(xRef(:)-xEst(:)).^2)+eps));
ivan@138: 
ivan@138: return