We Talk In Decibels

Noise is one of those things that we have to live with daily, be it the steady hum of the refrigerator, the whirring of the ceiling fan, or the constant barrage from the highway. 

But how do we measure these sounds? 

In 1924, the company Bell Telephone Laboratories invented a scale to measure sound intensity, or sound power. It was named after the inventor of the telephone, Alexander Graham Bell. 

The decibel is abbreviated as dB, and starts at zero, and today has many uses. 

For one, it helps to measure noise that can damage a human’s hearing, which as you might imagine is critically important to us. Something important to bear in mind is that extended exposure to sounds higher than 85 dB can cause hearing loss. Exposures up to 75 dB are generally safe for humans. 

On a smaller scale, it lets us understand what levels of noise can cause discomfort or be used as a measurement when procuring gadgets for our home. 

This page serves as a little information corner, as you will see several daily activities or machines and their corresponding noise levels. 

Some interesting facts about Sound