Human Range of Hearing

Human ears can process sounds from frequency range of approximately 20 to 20,000 Hz and an intensity range of about-10 – 110 dB greatly different at different frequencies. The whole central auditory system is designed to receive this full spectrum of sound with great redundancy of information. As hearing degrades less and less sounds in less resolution is being delivered to the brain. This leads to diminished and inaccurate (false reality) auditory memory and due to the reduced activity general cognitive decline.

Hearing range for human