local channel = 8888


local radio = peripheral.find"radio_tower"
local speaker = peripheral.find"speaker"
assert(radio and speaker, "aaa")

radio.setFrequency(channel)

local channel_format = string.rep(48000,"b")
while true do
	local _,_,data = os.pullEvent"radio_message"
	assert(#data == 48000,"weird format")
	speaker.playAudio(string.unpack(channel_format,data))
end