Asked in
Science
Domestic Dogs
Animal Health

What is the loudest sound a human can hear?

Answer

User Avatar
Wiki User
May 12, 2010 8:15PM

20,000 Hz (20kHz) is the (ideal) highest FREQUENCY that a healthy human ear can hear. With regard to loud sounds, a sound LEVEL of 120 decibel (dB) causes pain, and a level of 140 dB causes deafness.