I no longer need a reminder to wear hearing protection thanks to constant tinnitus (ringing in my ears) and diminished hearing. More ringing and less hearing are transactions I’d like to reverse. I’ve been reasonably careful over the years but obviously not careful enough.
This story explores options commonly available for personal protection equipment (PPE) like earplugs and earmuffs. It is not about the reduction of sound levels in the workshop.
What is ‘sound’?
Sound travels through the shop atmosphere (and objects) as a vibration wave, or sound wave. I’ve wondered then, why do scientists refer to ‘pressure’? Well, a sound wave changes atmospheric pressure, oscillating between areas of low and high).
