diff --git a/Open_Theremin_V3/application.cpp b/Open_Theremin_V3/application.cpp
index 0a70930..87afd2b 100644
--- a/Open_Theremin_V3/application.cpp
+++ b/Open_Theremin_V3/application.cpp
@@ -9,7 +9,8 @@
 #include "EEPROM.h"
 
 const AppMode AppModeValues[] = {MUTE,NORMAL};
-const int16_t CalibrationTolerance = 15;
+const int16_t PitchCalibrationTolerance = 15;
+const int16_t VolumeCalibrationTolerance = 21;
 const int16_t PitchFreqOffset = 700;
 const int16_t VolumeFreqOffset = 700;
 const int8_t HYST_VAL = 40;
@@ -399,7 +400,7 @@ pitchfn1 = GetPitchMeasurement();
 
  
 l_iteration_pitch = 0;
-while ((abs(pitchfn0 - pitchfn1) > CalibrationTolerance) && (l_iteration_pitch < 12))
+while ((abs(pitchfn0 - pitchfn1) > PitchCalibrationTolerance) && (l_iteration_pitch < 12))
 {      
       
 SPImcpDAC2Asend(pitchXn0);
@@ -469,7 +470,7 @@ volumefn1 = GetVolumeMeasurement();
 
 
 l_iteration_volume = 0;
-while ((abs(volumefn0 - volumefn1) > CalibrationTolerance) && (l_iteration_volume < 12))
+while ((abs(volumefn0 - volumefn1) > VolumeCalibrationTolerance) && (l_iteration_volume < 12))
 {
 
 SPImcpDAC2Bsend(volumeXn0);