How does a voice assistant understand you?
Wiggle Catcher
How does a voice assistant understand you?

You say "Hey, what's the weather?" and a little speaker on your desk answers back. No buttons, no typing — just your voice, floating through the air as invisible wiggles of sound. How does a machine catch those wiggles and turn them into words it understands?
First, the microphone. Inside that speaker sits a tiny drum called a diaphragm. When your sound waves hit it, the diaphragm shivers — fast wiggles for high notes, slow ones for low. Those shivers become electrical pulses, a wobbly signal that matches the shape of your voice exactly.
