def _stat_call(filepath):
validate_input_file(filepath)<EOL>args = ['<STR_LIT>', filepath, '<STR_LIT>', '<STR_LIT>']<EOL>_, _, stat_output = sox(args)<EOL>return stat_output<EOL>
Call sox's stat function.

    Parameters
    ----------
    filepath : str
        File path.

    Returns
    -------
    stat_output : str
        Sox output from stderr.