What are 3 types of sound?

What are 3 types of sound?

The three types of sound are:

Infrasonic: It is a sound with a frequency of less than 20Hz. Elephants use Infrasonic sounds to interact with herds hundreds of km away.

Sonic: It is a sound with the frequency between 20 to 20,000Hz. This type of sounds is called inaudible sounds that means a human cannot hear.

Ultrasonic: It is a sound with a frequency more than 20,000Hz. Dogs, Bats able to hear high-frequency sounds.