Index: /trunk/Mars/msignal/MExtractTimeAndChargeSpline.cc
===================================================================
--- /trunk/Mars/msignal/MExtractTimeAndChargeSpline.cc	(revision 12628)
+++ /trunk/Mars/msignal/MExtractTimeAndChargeSpline.cc	(revision 12629)
@@ -340,5 +340,6 @@
     if (IsNoiseCalculation())
     {
-        sum = s.ExtractNoise();
+        sum  = s.ExtractNoise();
+        dsum = 1;
         return;
     }