I'm not sure I recall audio loops of say, 0.5s coming from a computer bug. More frequently, computer audio glitches take < 0.1s. They are 'pops' which a human

I'm not sure I recall audio loops of say, 0.5s coming from a computer bug. More frequently, computer audio glitches take < 0.1s. They are 'pops' which a human wouldn't be able to imitate. You can reproduce this glitch by playing with the latency setting in an audio program (like Ableton).