def __parse_length_file(self, length_file, sample_rate):
    length_table = pd.read_table(length_file)
    self.length_dict = dict(zip(length_table['name'], [(l // sample_rate) for l in length_table['length']]))
def __parse_length_file(self, length_file, sample_rate):
    length_table = pd.read_table(length_file)
    self.length_dict = dict(zip(length_table['name'], [(l // sample_rate) for l in length_table['length']]))