config = {
    'sample_rate': 16000,
    'frame_ms': 25,
    'stride_ms': 10,
    'num_feature_bins': 80,
    'feature_type': 'log_mel_spectrogram',
    'preemphasis': 0.97,
    'normalize_signal': True,
    'normalize_feature': True,
    'normalize_per_feature': False,
}
