Hear No Evil, Only Higher Frequencies

Do not look at evil, do not listen to evil. Our dog friends believe that in addition to our unwavering devotion and unconditional love, they can only hear our good news. We are truly lucky to have such an extraordinary carnivore like our nearest ally and guardian. As part of their service, they hear more frequently than humans, so their ears represent one of the most important behaviors. The frequency of the hearing of the dog ranges from about 40 Hz to 60 000 Hz, compared to those at 20 Hz to 20 000 Hz. Where Hz is the sign of hertz in frequency units.

Hearing is a perception of sound. (Perception is usually defined as sensory perception, which is a typical periodic definition of an advanced process in an organism.) Sounds below 20 Hz are called ultra bass, and sounds above 20,000 Hz are called ultrasound. It is felt that the very low frequency sound is occasionally oscillating, but the ear is not felt. If you hear low frequency vibrations like the sound of a diving board, each sound has a higher frequency sound, so you can hear only the individual vibrations. Other animals have different hearing ranges from humans. Dogs can listen up to 30,000 Hz, bats and dolphins can hear up to 100,000 Hz sound. You may have noticed that the dog reacts to the sound of the dog whistle. It is well known that elephants respond to frequencies below 20 Hz.

Physical reception of sound in every auditory body is limited to a range of frequencies. Humans typically hear sound frequencies between about 20 Hz and 20,000 Hz (20 kHz), and the 382 upper limit decreases with age. Sometimes the sound refers only to the vibration whose frequency is within the range of human hearing, or sometimes associated with a particular animal. Other species have different hearing ranges. For example, a dog can feel vibrations above 20 kHz. As a signal perceived by the main senses, many species use sound to detect danger, navigation, predation and communication. Almost all physical phenomena, such as the Earth 's atmosphere, water, and fire, rain, wind, waves, earthquakes, etc., create (and characterize) distinctive sounds. Many species such as frogs, birds, oceans and terrestrial mammals also developed special organs to produce sound. In some species, these produce songs and speech