preprocessor_config.json

{
  "feature_extractor_type": "FunAsrNanoFeatureExtractor",
  "feature_size": 80,
  "sampling_rate": 16000,
  "frame_length": 25,
  "frame_shift": 10,
  "lfr_m": 7,
  "lfr_n": 6,
  "window": "hamming",
  "padding_value": 0.0,
  "return_attention_mask": true
}