A minimal code example to tune a PASC channel and begin playback, no buffering mechanism, reliant on uniformly timed packets

exampleTunerPASC.lua

--Example PASC tuner, minimal code to start listening; usage: exampleTunerPASC [channel_number] (eg: exampleTunerPASC 1337)
local modem=peripheral.find("modem",function(n,v)return v.isWireless()end)
local speaker_left=peripheral.wrap("left")
local speaker_right=peripheral.wrap("right")
if not modem then error("No wireless modem found.",3) end
local args={...} --Capture arguments
local chan=args[1] and tonumber(args[1]) or nil
if type(chan)=="number" then
  modem.open(chan) --Open channel
  while true do --Playback loop
    local event={os.pullEvent()}
    if event[1]=="modem_message" then
      if event[3]==chan and event[4]==759 then
        local payload=event[5]
        speaker_left.playAudio(payload.buffer[1]) speaker_right.playAudio(payload.buffer[2])
      end
    end
  end
end