[
    {
        "FootStepSize": 1,
        "StepMaterialDic": [
            "FxMb1SirenRoleWalk"
        ]
    },
    {
        "FootStepSize": 2,
        "StepMaterialDic": [
            "FxMb1Siren2RoleWalk"
        ]
    },
    {
        "FootStepSize": 8430,
        "StepMaterialDic": [
            "FxMb1SirenWalk"
        ]
    },
    {
        "FootStepSize": 8431,
        "StepMaterialDic": [
            "FxMb1Siren2Walk"
        ]
    }
]