All sound quality judgments derive from properties of the human auditory system.

Evidence

In the course of history, different aspects of sound quality have been of interest at different times. A factor unifying different sound quality trends seems to be the concept of product sound quality, which can be used to investigate sounds from different devices, systems, and from information and entertainment utilities. Although the components of sound quality are different in different cases, they always stem from the properties of the auditory system. — Ville Pulkki, Matti Karjalainen, Communication Acoustics- An…, 2501

Categorization

• DEFINE: Defines ‘product sound quality’ as the unifying thread across all sound quality research and grounds it in auditory-system physiology.