.....oh, shoot... can you tell me what your chromebook model is? I have a suspicion what might be happening, but I’m hoping its not the case...
1) It’s “L S” not “1 S”, but that command shouldn’t matter
2) Can you also try chmod +x OutsideVoice.x86_64 and then ./OutsideVoice.x86_64, and see if it works?