{ "feature_extractor_type": "MelSpectrogram", "sampling_rate": 16000, "n_fft": 400, "win_length": 400, "hop_length": 160, "n_mels": 80, "f_min": 0, "f_max": null, "power": 2.0, "center": true, "log": true, "log_eps": 1e-05, "cmvn": true }