Why haven't digital sound sources been invented?

Question

Audio

TV screens have replaced analog ray tubes with digital displays. Similarly, video, photo camera. Why didn't this happen with loudspeakers and why are analog speakers still used today?
Why weren't digital sound sources (speakers, headphones) invented?

Answer 1

Error in judgment. Displays are still "analogue" in the sense of transmitting light to the eye, and digital is only an interface between the PC and the display. It is possible to make a digital audio transmission from the PC to the speakers, but then the DAC must be inside the speaker, and not inside the PC (sound card).

Answer 2

Googled such questions
1) How does a ray tube work
2) How does a diode or liquid crystal panel work (and what is digital in it)
3) How does an electro dynamic sound source
work 4) How does an electro static sound source work
5) Can you also google what DSP is and how they are now used in sound sources
Can you suggest yourself in which direction you need to "invent" the sound source