Psychoacoustics: How Perception Influences Music Production:

The best place to start with psychoacoustics is to get familiar with the limits of human hearing. You probably already know that we can hear sounds within a range of 20 Hz to 20 kHz (20,000 Hz), with the upper limit decreasing to around 16 kHz with age. Noise-induced hearing loss and tinnitus will impact the perception of sound too, and for producers with these conditions, workarounds need to be developed to achieve balanced mixes.