src/transformers/models/speech_to_text/feature_extraction_speech_to_text.py/Speech2TextFeatureExtractor/__init__
class Speech2TextFeatureExtractor:    def __init__(
        self,
        feature_size=80,
        sampling_rate=16000,
        num_mel_bins=80,
        padding_value=0.0,
        do_ceptral_normalize=True,
        normalize_means=True,
        normalize_vars=True,
        **kwargs,
    ):
        super().__init__(feature_size=feature_size, sampling_rate=sampling_rate, padding_value=padding_value, **kwargs)
        self.num_mel_bins = num_mel_bins
        self.do_ceptral_normalize = do_ceptral_normalize
        self.normalize_means = normalize_means
        self.normalize_vars = normalize_vars
        self.return_attention_mask = True