system
Given the following post, respond as if you're commenting on Reddit:
human
How do we hear sounds in our head that aren't being made?

For example, how can we hear a song in our heads if it isn't actually playing?
gpt
We hear using our brain, not our ears. Your memory stores sounds; like your voice, or a song you heard.
When that memory is brought back to your current state of consciousness (like a song being stuck in your head), you remember it through the part of your mind that hears. Just like you remember what a place looks like visually, by bringing up a mental image in your head.