audio/preprocessor_config.json

{
    "fbank": {
        "dither": 0.0,
        "frame_length": 25,
        "frame_shift": 10,
        "preemphasis": 0.97,
        "freq": 16000,
        "high_freq": -200,
        "low_freq": 40,
        "num_mel_bins": 80
    },
    "delta": {
        "delta_order": 0,
        "window_size": 2
    },
    "cmvn": {
        "global_cmvn": "/path/to/audio/global_cmvn"
    },
    "splice": {
        "left": 7,
        "right": 7,
        "stride": 8,
        "random_start": false,
        "seed": 0
    }
}