{
    "alpha": 1.7572130442084501,
    "eta": 1.0382843368332828,
    "eval_metric": "merror",
    "gamma": 0.16970533772276186,
    "lambda": 0.02028405888561333,
    "max_depth": 41,
    "num_class": 61,
    "num_round": 10,
    "preprocessor": "mel"
}