June
19
/ 2013
Sound is defined as a vibration of the element of Air or a small change in air pressure, which is propagated through the medium of air. The number of vibrations or changes in air pressure, per unit of time is expressed in hertz (Hz) and audible to the human ear from 20 to 20,000 hertz. This means that we can hear sounds between 20 and 20,000 hertz. Sound below 20 hertz is called infrasound or low frequency sound and is not heard. This noise, however, can be felt. Acoustics is the science that deals with the study of sound and also shows the influence that a given space has on the sound and reverberation of sound. Researchers and visitors of
