Noise and Subtractive Synthesis

We use the term noise for:
a) auditory sensation arising in response to non-periodic sound waves/signals, with flat and dense spectral distributions (vibrational/physical frame of reference) 
b) auditory sensation that is undesirable/unpleasant/unintended within a given context, interfering with auditory sensations that are desirable/pleasant/intended (i.e. sounds) within the same context (cognitive/semantic frame of reference, focusing on communication)
 Vassilakis et al lecture notes 

Also see Truax about the meaning of noise

tutorial about using filters for subtractive synthesis (see also section 4-3 & 4-4 Music & Computers). Noise elements are actually used in music often, a very interesting example is the work of Italian composer Luigi Nono. Other examples include Ryoji Ikeda and Carsten Nicolai (alva noto) - Impulse or Fades.

and this is an article explaining different approaches to noise generation refining our understanding of the range of possible sounds: 
Atomic noise

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