preprocessor_config.json

{
  "feature_extractor_type": "MelSpectrogram",
  "sampling_rate": 16000,
  "n_fft": 400,
  "win_length": 400,
  "hop_length": 160,
  "n_mels": 80,
  "f_min": 0,
  "f_max": null,
  "power": 2.0,
  "center": true,
  "log": true,
  "log_eps": 1e-05,
  "cmvn": true
}