how is digital sound created?


So sound is a vibration which is created from things rubbing or banging together etc. If stuff isn't interacting with something to create a sound how are sounds created from nothing? I.e in the digital world? Music on an iPod or a beep from a computer? I have always wondered what the noise's are and that come from computers when they are 'thinking' or working - wtf's going on there?

lucaspeni
Funny how some analog zealots have not so much trouble listening to digital files run back thru lossy homogenizer tape decks… to wit Famous Blue Raincoat. 
If the OP means electronic music or sounds, then I suggest looking up the history of digital synthesizers and FM synthesis.

At its most basic, sound (and music) can be modeled as the sum of sine waves of different amplitudes and frequencies. This is the most important concept to understand and underpins all of digital audio. Here are some links that you’ll hopefully find useful:

https://www.compadre.org/osp/EJSS/4487/272.htm

https://gizmodo.com/digital-music-couldnt-exist-without-the-fourier-transfo-1699155287
Funny how some analog zealots have not so much trouble listening to digital files run back thru lossy homogenizer tape decks… to wit Famous Blue Raincoat.


https://youtu.be/0AHBw7wItpI?t=24
Is there something fundamentally wrong with Famous Blue Raincoat? The writer has clearly been agitated by a homogenizer.