diff --git a/sound_process.py b/sound_process.py
index 5427eb2..3a20ec8 100755
--- a/sound_process.py
+++ b/sound_process.py
@@ -318,7 +318,7 @@ def void_freq(song_name, offset, songlen, increment, minfreq, maxfreq, upperthr,
     if(is_stereo):
         print("Converting to mono...")
         for x in range(len(raw_global_data)):
-            global_data[x] = raw_global_data[x][0] + raw_global_data[x][1]
+            global_data[x] = raw_global_data[x][0]/2 + raw_global_data[x][1]/2
     
     else:
         global_data = raw_global_data