diff --git a/elec/ele_readout.py b/elec/ele_readout.py
index c94459c314a0eb71c7af8ed15fe57c72ce19eddd..b43712752bd3103939cd6a44b301a04e79fb9f8f 100644
--- a/elec/ele_readout.py
+++ b/elec/ele_readout.py
@@ -99,8 +99,8 @@ class Amplifier:
         self.time_unit = my_current.t_bin*self.undersampling
         self.CDet_j = 0     # CSA readout mode
         
-        # self.qtot = [0.0]*self.read_ele_num
-        self.qtot = [0.0]
+        self.qtot = [0.0]*self.read_ele_num
+        # self.qtot = [0.0]
         # get total charge
         for k in range(self.read_ele_num):
             i=0
diff --git a/timeres/add_noise.py b/timeres/add_noise.py
index cef63314006aaf1e7fcbd764be3c3d150b16a393..2448b03c0fc014b284cc9e063b984e7e5e4d7de4 100644
--- a/timeres/add_noise.py
+++ b/timeres/add_noise.py
@@ -169,7 +169,8 @@ class AddNoise:
         random_gauss = ROOT.gRandom.Gaus
         for j in range (0,len(list_c)):
             time= float(list(filter(None,list_c[j].split(",")))[0])
-            noise_height=random_gauss(noise_avg,noise_rms)
+            # noise_height=random_gauss(noise_avg,noise_rms)
+            noise_height=0
             ampl_nps=-float(list(filter(None,list_c[j].split(",")))[1])+noise_height
             ampl_s=-float(list(filter(None,list_c[j].split(",")))[1])
             self.time_list.append(time)