To clarify, I understand magnets vibrating fabric, and how that produces noise. I do not know how one constantly vibrating thing can produce multiple tones at the same time as required for music. Like base and trebels together in songs, how can you hear both at the same time?
In:
Imagine you’re jumping up and down in rhythmic fashion – this is like the speaker vibrating to play a single frequency. Your movement roughly looks like [this](https://i.imgur.com/2aF23fj.png). (Since this is ELI5, ignore gravity and acceleration and all that stuff, just think of simple back and forth movement).
Then, imagine you’re doing this in an elevator going up and down. Say you’re jumping up and down quickly while the elevator is going up and down slowly. Your movement looks something like [this](https://i.imgur.com/Gfmxwbu.png).
Your movement relative to the building (which is stationary) is like the vibration of a speaker playing two tones at the same time. One note is the higher pitched sound represented by your jumping up and down, the other note is the lower pitched sound represented by the elevator: two tones in one without any problems.
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