You're confusing Egyptian hieroglyphics with Sumerian (Babylonian, Assyrian, Persian, etc.) cuneiform. Egyptians wrote heiroglyphs on papyrus scrolls and the Sumerians wrote cuneiform on clay tablets. Kind of like Sony betamax vs. VHS.
It's clear that the ancient Egyptians invented hifi long before RCA and Western Electric. See the Klipschorn-like speaker and the rather awkward looking remote control.
Here's another