code: def setReferenceVoltage(self, caldb, calv):
          
          self.caldb = caldb
          self.calv = calv
docs: Sets the reference point to determine what outgoing voltage will produce what intensity, 
          used to calculate the proper output amplitude of components
  
          :param caldb: calibration intensity in dbSPL
          :type caldb: float
          :param calv: calibration voltage that was used to record the intensity provided
          :type calv: float