1[ 2 { 3 "device" : "configure", 4 "params" : 5 [ 6 {"name" : "loopback", "value" : "2" }, 7 {"name" : "device", "value" : "alsa" }, 8 {"name" : "samplerate", "value" : "48000" }, 9 {"name" : "period", "value" : "960" }, 10 {"name" : "nperiods", "value" : "2" } 11 ] 12 } 13] 14 15