code: def load_parameter(input_filename, only_header=False):
      
  
      with open(input_filename, 'rb') as f:
          meta = _parse_parameter_meta(f)
          if only_header:
              return meta
  
          return _parse_parameter_samples(f, meta)
docs: Load HTK parameter/feature file.
  
      :param input_filename:
      :param only_header: only load the metadata
      :return: a named tuple representing the HTK parmeter file