Analog vs. Digital


  • An analog signal is a continuous signal; analog signal values are known for all moments in time.

  • A digital signal is a discrete signal; digital signals are known at certain specific times.


how audio works

how film works =

lossy example =

how stereo records work =

Mario Davidovsky in 1970


a transition from a land to a pit or a pit to a land is interpreted as "1" while the absence of a transition is interpreted as "0"