• Sounds frequency between 20 Hz to 20,000 Hz are called audible sounds.
  • Sound with a frequency below 20 hertz and above 20,000 hertz is called the sound of inaudible range.
  • The hearing range of human beings is between 20 hertz to 20,000 hertz.
  • Humans cannot hear the sound of inaudible range.
  • Many animals, such as dogs, cats, etc. can hear the sound with a frequency above 20,000 hertz

How Loudness and Pitch are different from each other?

Audible and Inaudible sounds

  • Sounds that can be heard by human ears are called audible sounds. The range of audible sounds is from 20 Hz to 20 KHz.
  • Sounds that cannot be heard by human ears are called inaudible sounds. Any sounds having a frequency less than 20 Hz or greater than 20 KHz are categorized as inaudible sounds.
 Loudness of Sound from various Sources

The inaudible sounds can be divided into two categories as infrasound and ultrasound.

Infrasound and Ultrasound