3 ms·And yet I can flash an LED that fast, then turn my head from side to side and see the modulation ....by Taniwha 5y agoAnd yet I can flash an LED that fast, then turn my head from side to side and see the modulation ....JohnBooty 5y ago>> 44100khz > And yet I can flash an LED that fast You have an LED that flashes 44,100 times per second, and you can perceive this?ncmncm 5y agoNo.