How does an electric guitar pick up only sounds from the strings and not speech for an example?

Question

Edit: Thanks for all the answers <3

In: Technology

Answer 1

The real question to me is, how DO they still pick up your voice if you yell into it? If you have a lot of gain and turn it up, you will hear the voice, and it’ll do it with the strings muted directly over the pickups so they aren’t vibrating.