Frequency:

• It is defined as number of cycles or oscillations occurring per unit time.

• A standard measure of frequency is hertz (Hz).

• A frequency of 100 Hz means 100 oscillations per second.

• An oscillation, or cycle, is defined as a single change from up to down to up, or as a change from positive, to negative to positive.

• KHz is used to indicate thousands of oscillations per second.

• 1Khz = 1000 Hz.

• The frequency range of normal human hearing extends from around 20 Hz to 20 KHz.

Amplitude:

• Amplitude is the height, force or power of the wave.

• A sound also has an amplitude, a property related to loudness.

• The greater the amplitude, the louder the sound.