[
	{
		"age": "all",
		"khz": 8,
		"file": "8000.mp3"
	},
	{
		"age": "60",
		"khz": 10,
		"file": "10000.mp3"
	},
	{
		"age": "50",
		"khz": 12,
		"file": "12000.mp3"
	},
	{
		"age": "45",
		"khz": 14,
		"file": "14000.mp3"
	},
	{
		"age": "40",
		"khz": 15,
		"file": "15000.mp3"
	},
	{
		"age": "30",
		"khz": 16,
		"file": "16000.mp3"
	},
	{
		"age": "20",
		"khz": 17,
		"file": "17000.mp3"
	},
	{
		"age": "8",
		"khz": 20,
		"file": "20000.mp3"
	},
	{
		"age": "max",
		"khz": 22,
		"file": "22000.mp3"
	}
]