Processes a completed calibration

        :param save: Wether to save this calibration to file
        :type save: bool
        :param calf: Frequency for which to reference attenuation curve from
        :type calf: int
        :returns: str -- name of a saved calibration

def process_calibration(self, save=True, calf=20000):
        """Processes a completed calibration

        :param save: Wether to save this calibration to file
        :type save: bool
        :param calf: Frequency for which to reference attenuation curve from
        :type calf: int
        :returns: str -- name of a saved calibration
        """
        if self.selected_calibration_index == 2:
            raise Exception("Calibration curve processing not currently supported")
        else:
            results, calname, freq, db = self.bs_calibrator.process_calibration(save)
        return calname, db