Voice, maybe? Humans are great at distinguishing lots of different voices. Are there any screen reader tools that use a mixture of different people's voices to add additional fidelity to the information?
One of the things that really blew my mind is just how fast a proficient screen reader user can crank up the speed, e.g. https://soundcloud.com/freecodecamp/zersiaxs-screen-reader. It's totally unintelligible to me, and doesn't even sound much like human speech.
If you're no longer constrained by the speed and sound of normal speech all kinds of other interesting audio representations become possible.
"the current line is inside that if , which is inside that function" when you hit a "give me the context" ? regardless of the indentation system of said language
Assuming you care enough about humans to do so, mind.
I'm going insane just thinking about counting spaces.
Without semicolin after final # comments whole line.