def _get_audio_sample_bit(self, audio_abs_path):
        """
        Parameters
        ----------
        audio_abs_path : str

        Returns
        -------
        sample_bit : int
        """
        sample_bit = int(
           subprocess.check_output(
               ("""sox --i {} | grep "{}" | awk -F " : " '{{print $2}}' | """
                """grep -oh "^[^-]*" """).format(audio_abs_path, "Precision"),
               shell=True, universal_newlines=True).rstrip())
        return sample_bit
Parameters
        ----------
        audio_abs_path : str

        Returns
        -------
        sample_bit : int