Intensity is determined by the volume control.
The disturbing and harmful effects of noise depend both on the loudness and the frequency of the tones making up noise. A conversational voice is about 65 dB. A shout is 90 dB or greater. The frequency of a locomotive horn is about 250 Hz. The frequency of a table saw is about 4,000 Hz. Health Effects Excessive noise can destroy the ability to hear, and may also put stress of other parts of the body, including the heart.