diff --git a/analyze_source.m b/analyze_source.m
index a2ba915bf55bdde68e6acfa357659dbcc9121dd7..69869a1d32dfdc130b78ba9f7bd8d2c2a431fb4d 100644
--- a/analyze_source.m
+++ b/analyze_source.m
@@ -53,7 +53,7 @@ par = genParStruct('fb_type',fb_type,'fb_lowFreqHz',fb_lowFreqHz,...
     'pi_confThres',pi_confThres,'pi_medianOrder',pi_medianOrder);
 
 % Create a data object
-dObj = dataObject(audio,fs);
+dObj = dataObject(audio(:,1),fs);
 
 % Create a manager
 mObj = manager(dObj,requests,par);