preprocessor_config.json

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  "feature_extractor_name": "custom_feature_extractor",
  "feature_extractor_type": "CustomFeatureExtractor",
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  "norm_type": "global",
  "normalize_means": true,
  "normalize_vars": true,
  "num_mel_bins": 80,
  "padding_side": "right",
  "padding_value": 0.0,
  "return_attention_mask": true,
  "samples_seen": 0,
  "sampling_rate": 16000
}