Perception of Sound

Listening makes it possible for us to do our daily activities and improve our lives. It enables us to communicate, socialize and interact in our environment. Also, good hearing protects our safety, alerts you of danger, and alerts others' suffering. Hearing is necessary for us to deeply engage in our life. Our hearing provides us a huge source of information; some of them are known to us and we may not notice but by combining

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.

In human physiology and psychology, sound is the acceptance of this wave and perception of the brain. When the frequency is between about 20 Hz and 20 kHz, humans can only hear sound waves with different pitches. Sounds above 20 kHz are ultrasonic waves and humans can not detect this. Sound waves below 20 Hz are called ultra low frequencies. Hearing range varies if animal species are different. Acoustics is an interdisciplinary science that studies mechanical waves in gases, liquids, and solids, including vibration, sound, ultrasound, and ultra bass. Scientists working in the field of acoustics are acoustists, and those working in the field of acoustics engineering may be called acoustic engineers. On the other hand, audio engineers pay attention to sound recording, operation, mixing, playback.

Like the light waves, the physical properties of sound waves are related to every aspect of our sound perception. The frequency of sound waves is related to our perception of sound pitch. High frequency sound waves are recognized as treble waves and low frequency sound waves are recognized as bass sounds. The frequency of the audible sound is in the range of 20 to 20,000 Hz and has the maximum sensitivity to frequencies falling in the middle of the range. As with the visible spectrum, the audible range of the other species is different. For example, hearing range of chickens is very limited, 125-2000 Hz. The audible range of the mouse is 1000 to 91000 Hz, and the audible range of Berga is 1000 to 123000 Hz. The audible range of our dogs and cats is between 70 - 45 000 Hz and 45 - 64 000 Hz (Strain, 2003).