{
	microphone:{ # name of the device
		io:"input", # input or output
		map-on:{ # select hardware interface and name
			interface:"alsa", # interface : "alsa", "pulse", "core", ...
			name:"default", # name of the interface
		},
		frequency:48000, # frequency to open device
		channel-map:[ # mapping of the harware device (mapping is not get under)
			"front-left", "front-right"
		],
		type:"int16", # format to open device (int8, int16, int16-on-ont32, int24, int32, float)
		nb-chunk:1024 # number of chunk to open device (create the latency anf the frequency to call user)
	},
	speaker:{
		io:"output",
		map-on:{
			interface:"alsa",
			name:"default",
		},
		frequency:48000,
		channel-map:[
			"front-left", "front-right",
		],
		type:"int16",
		nb-chunk:1024,
		volume-name:"MASTER"
	},
	speaker-pulse:{
		io:"output",
		map-on:{
			interface:"pulse",
			name:"default",
		},
		frequency:48000,
		channel-map:[
			"front-left", "front-right",
		],
		type:"int16",
		nb-chunk:1024,
		volume-name:"MASTER"
	},
	speaker-jack:{
		io:"output",
		map-on:{
			interface:"jack",
			name:"default",
		},
		frequency:48000,
		channel-map:[
			"front-left", "front-right",
		],
		type:"float",
		nb-chunk:1024,
		volume-name:"MASTER"
	}
}