How do digital circuits parse analog signals, and how do they turn streams of ones and zeroes back into analog waveforms?
Particularly for consumer audio applications, the answer might surprise you: instead of a couple of intuitive and elegant solutions, the modern approach often involves wacky 1-bit pulse trains and a pretty unusual analog feedback loop. More here:
https://lcamtuf.substack.com/p/dacs-and-adcs-or-there-and-back-again