diff --git a/Virtual Sensing/Remote Microphone Technique/MATLAB/Functions/obsFiltTd.m b/Virtual Sensing/Remote Microphone Technique/MATLAB/Functions/obsFiltTd.m
index 17ca29ab52afa29ddd7a99b0e326adebef6988a6..aeb51e7376560da0eea1a07cb1765d3b2bec138c 100644
--- a/Virtual Sensing/Remote Microphone Technique/MATLAB/Functions/obsFiltTd.m	
+++ b/Virtual Sensing/Remote Microphone Technique/MATLAB/Functions/obsFiltTd.m	
@@ -3,7 +3,7 @@
 % Author: Achilles Kappis
 % e-mail: axilleaz@protonmail.com
 %
-% Date: 05/01/2025 (DD/MM/YYYY)
+% Date: 22/01/2025 (DD/MM/YYYY)
 %
 % Copyright: MIT
 % --------------------------------------------------
@@ -222,7 +222,7 @@ function [O, Rme, Rmm, Ovec, RmeMtx, RmmMtx, condNum, mMtx, Omean, RmeMean, RmmM
     % Pre-process data
     % ====================================================
     % Delay the virtual microphone signals
-    if logical(delay)
+    if sum(logical(delay))
         if isempty(fs)
             for jIdx = size(e, 3):-1:1
                 e(:, :, jIdx) = delayseq(e(:, :, jIdx), delay);