== Source (Lua) ==

ay = { 10.0, 8.2, 12.6, 15.2, 7.8, 0.2, 17.9, 6.9, 21.1, 3.7, 21.2, 20.4, 10.7 }

pet = { 42.0, 26.0, 20.6, 11.5, 28.1, 33.4, 27.8, 2.5, 16.7, 39.5, 17.8, 6.0, 36.1, 44.3, 40.5, 17.0, 40.9 }

mkb = { 81.4, 73.3, 70.4, 35.3, 61.9, 25.7, 58.6, 57.3, 27.8, 38.5, 41.1, 31.0, 63.4, 68.4, 21.4, 15.2, 87.5, 41.9, 84.0, 52.1, 14.7, 71.0, 79.0, 15.5, 53.4, 8.9, 63.2, 85.0, 14.1, 68.9, 30.3, 53.2, 42.8, 68.5, 14.2, 64.3, 43.9, 18.3, 84.6, 74.1 }

ch1 = { 1.4, 3.0, 8.9, 8.3, 8.1, 3.9, 2.7, 2.5, 12.4, 6.2, 8.6, 0.5, 6.2, 9.7, 3.4, 6.1, 5.7, 1.8, 12.8, 8.4, 1.7, 13.2, 14.7, 7.2, 10.0, 10.2, 9.5, 8.7, 7.5, 0.3, 8.8, 5.8, 7.6, 0.1, 0.7, 1.8, 5.0, 10.3, 13.9, 5.0, 5.7, 6.6, 11.1, 3.3, 11.8, 7.9, 14.4, 11.2, 1.1, 5.3, 1.6, 4.4, 1.8, 0.8, 1.8, 10.6, 3.5, 14.9, 10.1, 10.8, 2.4, 2.1, 5.1, 0.6, 13.3, 0.8, 2.0, 3.9, 0.4, 14.6, 12.7, 14.0, 6.6, 14.2, 5.4, 13.7, 12.7, 9.8, 0.8, 12.3, 11.5, 14.2, 0.2 }

ch2 = { 34.4, 30.2, 40.9, 111.7, 0.3, 171.0, 107.6, 54.7, 85.9, 116.7, 85.1, 120.4, 122.7, 0.7, 70.0, 109.9, 120.1, 29.2, 120.7, 49.5, 110.1, 48.6, 24.5, 107.3, 52.7, 65.2, 109.2, 179.7, 97.1, 37.1, 37.0, 29.7, 153.6, 64.1, 37.4, 60.0, 72.7, 12.5, 88.1, 73.9, 4.9, 178.5, 35.0, 30.4, 42.9, 57.4, 164.7, 27.0, 114.1, 35.2, 83.2, 31.0, 40.3, 94.6, 176.7, 70.3 }

rk = { 63.4, 37.5, 20.5, 47.4, 13.1, 12.5, 27.6, 72.4, 54.3, 70.3, 34.6, 15.1, 60.2, 21.0, 38.5, 51.6, 5.2, 59.6, 60.4, 19.7, 30.0, 39.9, 1.2, 23.8, 0.2, 69.0, 31.7 }

function decode(t)
    local a = 0
    local b = 0
    local c = 0
    local ret = ''
    for i, v in ipairs(t) do
        a, b = math.modf(v)
        if math.abs(b) >= 0.5 then
            c = math.ceil(v)
        else
            c = math.floor(v)
        end
        ret = ret .. string.format('%d ', c)
    end

    return ret
end

== Output ==

START AY
10 8 13 15 8 0 18 7 21 4 21 20 11
END AY
START PET
42 26 21 12 28 33 28 3 17 40 18 6 36 44 41 17 41
END PET
START MKB
81 73 70 35 62 26 59 57 28 39 41 31 63 68 21 15 88 42 84 52 15 71 79 16 53 9 63 85 14 69 30 53 43 69 14 64 44 18 85 74
END MKB
START CH1
1 3 9 8 8 4 3 3 12 6 9 1 6 10 3 6 6 2 13 8 2 13 15 7 10 10 10 9 8 0 9 6 8 0 1 2 5 10 14 5 6 7 11 3 12 8 14 11 1 5 2 4 2 1 2 11 4 15 10 11 2 2 5 1 13 1 2 4 0 15 13 14 7 14 5 14 13 10 1 12 12 14 0
END CH1
START CH2
34 30 41 112 0 171 108 55 86 117 85 120 123 1 70 110 120 29 121 50 110 49 25 107 53 65 109 180 97 37 37 30 154 64 37 60 73 13 88 74 5 179 35 30 43 57 165 27 114 35 83 31 40 95 177 70
END CH2
START RK
63 38 21 47 13 13 28 72 54 70 35 15 60 21 39 52 5 60 60 20 30 40 1 24 0 69 32
END RK