Sound Waves -- An Essay

Warning: For most waves considered in physics, such as acoustic waves and light waves, the wavelength will change as the frequency is changed. This makes the speed constant. This applies to both sound waves and light waves. The above animation does not mean there are cases of sound waves and light ports. Animation is generally wave, but what does frequency mean? This is intended to show what happens only when the frequency changes and does not indicate a corresponding change in the wavelength at which the sound waves and light waves are generated.

Like light waves, the physical properties of sound waves are related to every aspect of our perception of sound. The frequency of sound waves is related to our perception of sound height. High frequency sound waves are recognized as treble waves and low frequency sound waves are recognized as bass sounds. The audible range of the sound frequency is between 20 and 20,000 Hz with maximum sensitivity for frequencies falling in the middle of the range. As with the visible spectrum, the audible range of the other species is also different. For example, the hearing range of chickens is very limited, 125 to 2000 Hz. The audible range of the mouse is 1000 to 91000 Hz, and the audible range of Berga is 1000 to 123000 Hz. Our pet's dog and cat hearing range is 70-45000 Hz and 45-64000 Hz respectively (Strain, 2003).

Generally, "sound" is used to mean a sound that the human ear can perceive, that is, "sound" refers to audible sound unless it is classified elsewhere. A reasonable standard definition of audible sound is that it is a pressure wave with an intensity between 20 Hz and 20,000 Hz and an intensity above the standard hearing threshold. Sound waves are limited to longitudinal waves because the ears may be surrounded by air or in the water. You can also specify the normal range of sound pressure and sound intensity