When you turn down or up the volume on devices with either a wheel or button, what actually happens that allows it to sound quieter or louder?

Question

When you turn down or up the volume on devices with either a wheel or button, what actually happens that allows it to sound quieter or louder?

In: Technology

Answer 1

So what it is, is inside the switch is a device that amplifies a signal, or a signal inverse of that signal, and so the more power you give to that amplifier, the higher the peak of that signal (which is going to be volume)