preprocessor_config.json

{
 "feature_extractor_type": "ASTFeatureExtractor",
 "feature_size": 1,
 "sampling_rate": 16000,
 "padding_value": 0.0,
 "num_mel_bins": 128,
 "max_length": 398,
 "do_normalize": true,
 "mean": -4.268,
 "std": 4.569,
 "return_attention_mask": false
}