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Beyond being able to see, hearing is perhaps the most crucial means by which man and animals survive. Without the ability to hear, we would face a wide variety of dangers, dangers that produce a sound long before we can see the danger.
Sound is simply a series of vibrations that cause an audible wave (also referred to as a mechanical wave) of pressure to pass through a medium such as air, gases and liquids. When sound passes through one of these forms of mediums, it creates a longitudinal wave. When sound passes through a solid medium it creates a transverse wave.
Longitudinal sound waves are waves of alternating pressure while transverse waves are waves of alternating stress at a right angle to the direction of the sound’s origin.
The study of sound that deals with mechanical waves is known as acoustics while the person who studies sound itself is called an acoustical engineer. An audio engineer should not be mistaken for an acoustical engineer as an audio engineer is concerned about records, manipulating, mixing and reproducing sounds.
Did you know that although it is the ear that hears the sound, it is the brain that interprets what the sound is?