Noise: a sound, especially one that is loud or unpleasant or that causes disturbance
Noise is described as a disturbance of normality among sound environments. While very subjective, noise is still respected and observed heavily in culture for it’s inverted sound. Yet noise is inside all forms of sound, noise is simply the subject that is considered “not normal”. There are levels to noise that can be measured, things like communication quality, but overall it is hard to quantify. However, noise is used strategically in music production or in other areas of culture. Noise adds distortion and texture to sounds and is not always accidental or meaningless sound.
Example of Noise: The background “noise” of Starbucks while working (people chatting, machines going, food being eaten etc)