preprocessor_config.json

{
  "processor_type": "AudioPreprocessor",
  "sample_rate": 16000,
  "max_length": 320000,
  "chunk_duration_s": 20,
  "feature_extractor_type": "MelSpectrogram",
  "n_fft": 1024,
  "hop_length": 256,
  "n_mels": 80,
  "normalize": true
}