preprocessor_config.json

{
  "feature_extractor_type": "ASTFeatureExtractor",
  "do_normalize": true,
  "feature_size": 1,
  "max_length": 1024,
  "num_mel_bins": 100,
  "sampling_rate": 24000,
  "hop_length": 256,
  "n_fft": 1024,
  "processor_class": "ASTProcessor"
}