src/transformers/models/wav2vec2/modeling_wav2vec2.py/Wav2Vec2FeatureExtractor/forward
class Wav2Vec2FeatureExtractor:    def forward(self, input_values):
        hidden_states = input_values[:, None]
        for conv_layer in self.conv_layers:
            hidden_states = conv_layer(hidden_states)

        return hidden_states