preprocessor_config.json

{
  "do_normalize": true,
  "feature_size": 80,
  "sampling_rate": 16000,
  "padding_value": 0.0,
  "hop_length": 10,
  "win_length": 25,
  "win_function": "hamming_window",
  "normalize_means": true,
  "normalize_vars": true,    
  "return_attention_mask": false
}