What do Decibel Intensity and Sound Sources Have in Common?…Sound Proof Atlanta!

Updated: Aug 19, 2019



We can provide the solution to bring Controlled Quiet Back to Reality. In an article in Survival Life, Robert Brenner outlined the different frequency levels in dB. Though each individual responds to decibel noise levels differently, everyone has to survive and function in an environment when noise is present. Sound Proof Atlanta pays attention to every detail in each business and home when we survey for the best solution to drive down the dB level with acoustical assemblies. Our acoustical assemblies have sound transmission coefficient (STC) ratings for all of the dB levels displayed in this chart (and many more).

"The intensity, or power, of sound pressure is measured in decibels (dB). The decibel provides a relative measure of sound intensity. The higher the dB rating, the more volume a sound has. The intensity of a sound wave decreases with increasing distance from the source (inverse square law). The power (intensity) of sound is approximately equal to 1/d2 where d equals the distance from the sound source. Double the distance, d and sound pressure (dB) drops to half its intensity. A 40 dB sound at 1 meter drops to 20 dB at 2 meters and just 10 dB at 4 meters. At 0 dB – the softest sound – your ears and brain search for something to hear. How loud is sound? The ear’s response to the loudness of sound occurs as a power of 10. It takes about 10 times the power to sound twice as loud. Loudness varies with age and the physiology of each person. Still, more intense sounds will appear loudest."

What dB Level of Intensity Surrounds You?



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* All Sound Proof Atlanta Products are Referred to as "SPA" Products