Digital music (sometimes called digital audio) is a method of representing sound as numerical values. Digital music is often synonymous with MP3 music, as that is a common file format in which digital music exists.
What is digital music?
We usually only use the term digital music when comparing it to analog media where the sound is stored in a physical form, such as magnetic tapes or vinyl records. In the case of cassette tapes, this information is stored magnetically.
One of the most well-known physical sources of digital music is the compact disc. The basic principle of how this works is that a laser reads the surface of a CD which contains pits and lands.
The information on the CD changes the reflected power of the laser beam, which is measured and decoded as binary data (1 or 0).
