examples/research_projects/wav2vec2/alignment.py/Wav2Vec2Aligner/speech_file_to_array_fn
class Wav2Vec2Aligner:    def speech_file_to_array_fn(self, wav_path):
        speech_array, sampling_rate = torchaudio.load(wav_path)
        speech = self.resampler(speech_array).squeeze().numpy()
        return speech