How do microphones work? I just do not get it.
In: 85
At their simplest sound waves (literally just air moving) hits a diaphragm that’s connected to a coil. This is next to a magnet. As the air pushes the diaphragm at certain frequencies, the diaphragm moves the coil at those frequencies. The coil moving back and forth in relationships to the magnet changes the electrical signal, which is carried down the wires to whatever input.
edit: i think it’d be more accurate to say generates a current rather than changes the signal.
edit2: and funny enough that’s just how electric guitars work. The pickups are coils with magnetic fields that are affected by the metal strings vibrating. And speakers work in the reverse way, starting with the signal and going to a diaphragm.
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