Volume 4

SOUND ATTENUATION OF ACOUSTIC SHIELDS

with Alberto Behar, PEng Yang Luo Adam Pham Stephen Mosher Mohammad Abdoli-Eramaki

Symphonic music can pose a hearing hazard for musicians. Alberto Behar and his colleagues investigate the use of acoustic shields as a potential safeguard.

WHY DO WE LIKE NOISE?

with Alberto Behar, PEng

In spite of presentations and articles about the effects of noise. Alberto tries to figure out why people really like noise.

ON APPS AND SOUND LEVEL METERS

with Alberto Behar, PEng

Alberto Behar give us the lowdown on uses and accuracy when it comes to choosing a sound level meter App.

Check, Check: NIOSH Launches New Sound Level Meter App

with John Howard, M.D. Director, NIOSH

Dr. John Howard subs in for Alberto Behar with this issue’s Noisy Notes. We are pleased to provide a reprint from NIOSH about the launch of their new sound level meter app.

The Magic 85 dBA

with Alberto Behar, PEng

It is well known that occupational hearing loss is the result of long exposure to high levels of noise. When asked about how long is “long exposure,” the answer frequently is given as: “40 years of exposure, 8 hours a day, and 40 hours a week.” And, to the question of how high a potentially damaging level is, the magic number is 85 dBA.

Volume 3

Upcoming Acoustical Events

with Alberto Behar, PEng

Did you wonder if there is anything coming up for people with an interest in the effects of noise and noise control? Alberto Behar gives is the lowdown on the upcoming acoustical events around the world.

Predicting Musician’s Hearing Loss

with Alberto Behar, PEng

Alberto Behar writes that there is nothing new regarding hearing loss from long duration exposure to loud noise. The question has always been on how loud is loud and how long a duration should be to be considered as “long.”

HEARING PROTECTORS, HEARING LOSS, AND INTELLIGIBILITY

with Alberto Behar, PEng

Readers of Alberto’s column should by now be used to his predilection for rigorously defining terms that are frequently used in the acoustics side of the field. In keeping with that practice he defines Hearing Protectors, Hearing Loss, and Intelligibility, so that there will be no misunderstandings.

HEARING LOSS, NO, BUT….!

with Alberto Behar, PEng

In modern life there are noise sources that may not cause hearing loss but are highly annoying. Alberto Behar gives us his “hit list” of the worst offenders.

Volume 2

Sound Pressure and Sound Power

with Alberto Behar, PEng

Our resident noise guru Alberto Behar gives us a lesson on “Sound Pressure and Sound Power.”