How to Gag Noise

Unwanted and disliked sound is noise. What is unwanted and disliked is subjective to a decibel level.

Unwanted and disliked sound is noise. What is unwanted and disliked is subjective to a certain decibel level. Any thing from a dripping tap to a pile driver could annoy people. Sound from a wrong TV programme or the party next door could qualify as noise, while the interested parties might not consider the sounds as annoying at all.

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Excessive meaningless and mechanical sounds, like traffic noises, motors and other machinery are a major annoyance factor today. This increases stress in individuals and has become a health hazard to reckon with.

Audibility

There are two aspects to sound. They are loudness and frequency. Normal conversation takes place at 60-65 decibels. (db). Whispered speech is at 20-30 db. The human ear can hear frequencies from 20 to 20,000 hertz.

(Source: Webhealthcentre.com)