Although sound travels quite fast, it is still possible to calculate its speed in air. To do this, the time it takes a sound to travel a measured distance must be recorded. Either the distance ...

Ultrasound is produced by high frequency vibrations beyond the range of human hearing. The frequency of ultrasound is therefore greater than 20,000 hertz. Ultrasound, like audible sounds, is ...

The AMPLITUDE of these pressure variations (that is, their maximum displacement from the ambient atmospheric pressure) is called the sound pressure variation, whereas the effective pressure variation ...

What is common to all sound is a pattern of change over time called an oscillation or vibration ... the diagram below also shows an oscillation - with its continuous variations in amplitude regarded ...

A tuning fork being struck can provide an example of the pressure fluctuations in the air and how the air particles oscillate (move in one direction rhythmically) when we perceive sound. Analysing the ...

Sound stimulation of 75 dB at a frequency of 100 Hz leads to improvement in cervical vestibular-evoked myogenic potential (cVEMP) amplitude in patients with definitive Meniere disease.

Sound vibrations leave the singer's mouth ... This additional height, or amplitude, indicates that the signal has more power. Notice, too, that the frequency of the incoming and outgoing signals ...