Tag Archive: measuring sound

Will technology bring us a quieter world?

This image is in the public domain.

by Neil Donnenfeld

New technology is going to enhance our ability to have a quieter world. The future is looking brighter and quieter!!

There is a fundamental business concept that if you can measure something you can get control of it and do something about it. The health literature sets clear limits on noise levels that are acceptable and those that lead to illness. Now, as seen in this article, it is getting easier and easier to make on the spot sound readings and to immediately determine if acceptable noise limits are being breached. We no longer need be silent in our desire to have a quieter world as we can point out objective data.

The next step is to require enforcement by government to protect those that would do us harm. This test currently under way in Edmonton is the most comprehensive and encouraging example I have seen. If you can’t stand the quiet, prepare to get measured and ticketed. The future of noise enforcement is coming.

Neil D. Donnenfeld is the President of Products Ahead, LLC, which develops and markets consumer packaged goods that provide real benefits to consumers with unmet needs. A former brand manager at Procter and Gamble, he evolved into an entrepreneurial executive and eventually became CEO at Advanced Vision Research, makers of TheraTears(R), from its start-up to its sale to a publicly traded company. Neil developed hyperacusis as a result of proton beam radiation to treat an acoustic neuroma, a rare, benign brain tumor that develops on the acoustic nerve. As a result, he has become a noise activist and is committed to helping create a quieter, more civil world. He also serves on many not for profit boards including President of the Jewish Journal, Vice Commodore of The Swampscott Yacht Club, and Vice President of Acoustic Neuroma Association.



Measuring sound levels

Photo credit: Phonical licensed under CC BY-SA 4.0

by Daniel Fink, MD, Chair, The Quiet Coalition

People sometimes wonder how to measure sound levels. Until recently, one had to buy a sound meter. OSHA-certified ones can cost more than $1000, although reasonable quality sound meters have long been available for less than $100, but technology changed all that. Now there are free or inexpensive sound meter apps for both Android and Apple smartphones.

I lack both the technical knowledge and the equipment to evaluate these, but fortunately researchers at the National Institute for Occupational Safety and Health have done the work.

The apps for iPhones are more accurate than those for Android phones due to standardization of hardware and software, but there are a lot of good free apps available.  NIOSH offers one that it developed for workers but is free to all.

But you really don’t need a sound meter app to know if it’s too loud. If you need to strain to speak or to be heard at the normal social distance of 3-4 feet, the ambient noise is above 75 A-weighted decibels (dBA) and your hearing is at risk. The auditory injury threshold is only 75-78 dBA. Regardless of what your sound meter says, or even if you can somehow converse despite the noise, if the noise is loud enough to bother your ears, that also indicates that your hearing is probably being damaged.

There are individual variations in sensitivity to noise. What is loud enough to bother you may not bother someone else. It’s clear that some people are more sensitive to noise than others, just as some people don’t get a sunburn even in the brightest sun and others don’t seem to gain weight despite what they eat.

So if the noise is bothering you, either leave the noisy environment or put in your earplugs.

As I often write, “if it sounds too loud, it IS too loud.”

Dr. Daniel Fink is a leading noise activist based in the Los Angeles area. He is the founding chair of The Quiet Coalition, an organization of science, health, and legal professionals concerned about the impacts of noise on health, environment, learning, productivity, and quality of life in America. Dr Fink also is the interim chair of Quiet Communities’ Health Advisory Council, and he served on the board of the American Tinnitus Association from 2015-2018.