class_docstr: Compute Cepstrum features of every frame in speech, return a float tensor
  with size (num_frames, ceps_subband_num).
docstr: Set params.
  :param config: contains five optional parameters:
      --sample_rate       : Waveform data sample frequency (must match the waveform
                          file, if specified there). (float, default = 16000)
      --window_length          : Window length in seconds. (float, default = 0.025)
      --frame_length           : Hop length in seconds. (float, default = 0.010)
      --ceps_subband_num : Number of Ceps_subband. (int, default=13).
      --tag_ceps_mean_norm : Flag of tag_ceps_mean_norm. (bool, default=True).
  :return:An object of class HParams, which is a set of hyperparameters as
          name-value pairs.
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code: def params(cls, config=None):
      """
      Set params.
      :param config: contains five optional parameters:
          --sample_rate       : Waveform data sample frequency (must match the waveform
                              file, if specified there). (float, default = 16000)
          --window_length		 : Window length in seconds. (float, default = 0.025)
          --frame_length		 : Hop length in seconds. (float, default = 0.010)
          --ceps_subband_num : Number of Ceps_subband. (int, default=13).
          --tag_ceps_mean_norm : Flag of tag_ceps_mean_norm. (bool, default=True).
      :return:An object of class HParams, which is a set of hyperparameters as
              name-value pairs.
      """
  
      window_length = 0.025
      frame_length = 0.010
      ceps_subband_num = 13
      tag_ceps_mean_norm = True
      sample_rate = 16000
  
      hparams = HParams(cls=cls)
      hparams.add_hparam("window_length", window_length)
      hparams.add_hparam("frame_length", frame_length)
      hparams.add_hparam("ceps_subband_num", ceps_subband_num)
      hparams.add_hparam("tag_ceps_mean_norm", tag_ceps_mean_norm)
      hparams.add_hparam("sample_rate", sample_rate)
  
      if config is not None:
          hparams.override_from_dict(config)
  
      return hparams
  
file_path: delta/delta/data/frontend/cepstrum.py
imports: import delta.compat
  from core.ops import py_x_ops
  from delta.utils.hparam import HParams
  from delta.data.frontend.base_frontend import BaseFrontend
label_desc: Use image node_id 2 for calling the Cepstrum obj's underlying member method code with example usage: obj.params(cls, config) and returns: hparams