Snakes can't hear humans talk. If you like, shout on top of your lungs. Snakes won't hear. You know what's funny? They can hear your footsteps. Let me explain
Snakes don't have external ears. They detect sounds by picking up vibrations through their jawbones and skulls. Because their body is on the ground, they can pick up vibrations from the ground. They can also detect low-frequency airborne vibrations (between 50 and 1,000 Hertz).