Simple question, or is it...

What exactly is an audio signal made of, and what exactly is the medium it travels through in a cable??

thecarpathian05-12-2020 8:17pm

Post removed May 15, 2020
geoffkait Details Discussions Posts This discussion 23,365 posts 05-15-2020 at 04:31pm Copy Comment URL Report Comment Edit Delete OK, you convinced me. Waving the White Flag here, guys! 🏳 Going back to metal clothes hangers ASAP.
djones51 Details Discussions Posts This discussion Message User 4,947 posts 05-15-2020 at 04:41pm Copy Comment URL Report Comment Edit Delete Why wave the white flag, you're right the Joules which are in the electromagnetic wave are in the wire. The wire carries the signal, the signal isn't the energy flow. At least that's the take I'm getting from all those links jea48 posted. Well other papers from the link.
Post removed May 15, 2020
geoffkait Details Discussions Posts This discussion 23,365 posts 05-15-2020 at 06:08pm Copy Comment URL Report Comment Edit Delete OK, Mr. Smarty Pants, why does the quality of the conductor make any difference? Operators are standing by. Are we now to consider wire directionality a dead donkey? And what about skin effect? Another dead donk, I suppose? Furthermore, if the EM wave travels in the space between the wires it would be traveling in air, so it’s velocity would be nearly 100% the velocity of light in a vacuum, as I already said.