Fix error in SNR calculation in obsFiltTD.m

Virtual Sensing/Remote Microphone Technique/MATLAB/Functions/obsFiltTD.m

@@ -3,7 +3,7 @@
 % Author: Achilles Kappis
 % e-mail: axilleaz@protonmail.com
 %
-% Date: 04/10/2024 (DD/MM/YYYY)
+% Date: 05/10/2024 (DD/MM/YYYY)
 %
 % Copyright: MIT
 % --------------------------------------------------
@@ -281,8 +281,9 @@ function [O, Rme, Rmm, Ovec, RmeMtx, RmmMtx, condNum, mMtx, Omean, RmeMean, RmmM
 
 
     for jIdx = size(RmmMtx, 3):-1:1
-        snrMtx = 10^(-snrVal/10) * norm(RmmMtx(:, :, jIdx), 'fro')/(size(m, 2)^2); % Calculate the appropriate SNR amplitude values
-        snrMtx = snrMtx * eye(size(RmmMtx, 1));
+        snrMtx = 10^(-snrVal/10); % Convert SNR to linear value
+        snrMtx = (snrMtx^2) * norm(RmmMtx(:, :, jIdx), 'fro')/(size(m, 2)^2); % Calculate the appropriate SNR amplitude values
+        snrMtx = snrMtx * eye(size(RmmMtx, 1)); % Make the matrix
 
         Ovec(:, :, jIdx) = RmeMtx(:, :, jIdx).'/(RmmMtx(:, :, jIdx) + regMtx + snrMtx);
     end