Until I get a package uploaded, compile TIC=load"sfx(3)for t=0,32639 do poke4(t,math.random(12,16))end" with tic80packer for a 64B result (68B including the header), which outputs square waves instead of noise, unlike the expanded version I'm using here: https://bitbucket.org/WaterEnVuur/tic80-packer/src/master