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COVID-19 is affecting our hearing

May 1, 2020 by Bill Schiffmiller

A young father attends an online meeting using headphones while entertaining two children.

COVID-19, coronavirus, and hearing

How is COVID-19 (coronavirus) affecting our hearing? In the pandemic, many of us are learning how to study, work, live, and relax in the same space—often at the same time. We’re dealing with a host of new challenges. We have altered routines and workflows that now include frequent videoconferencing (and an increased risk of Zoom-bombing).

In our “new normal,” most of us are now keenly aware of how disruptive noise is in our “office space”. (To be fair, our old office space was noisy too, but we had gotten used to its particular rhythm and cadence. So, we stopped noticing it over time.) To compensate, we’re turning to headphones and earbuds. We’re asking our kids (or our roommates) to please wait just 30 more minutes before making that snack in the kitchen. And, every day, we face the temptation to turn up the volume to drown out the background noise. We know this isn’t good for our ears, but … “desperate times.”

Dealing with our less-than-ideal sound environment could be just another pandemic pain point. But I see a silver-lining opportunity to address our hearing wellness. It’s our chance to become more conscious of the noise level around us. We can be more attuned to how it affects our mood and stress level. We can be more educated about technology that helps us address it. And we can be more willing to take action to safeguard our hearing and our overall health and wellness.

Working from home during COVID-19: how noisy is it?

These days, you can quickly assess the noise level in any environment using your smartphone. With the CDC, the National Institute for Occupational Safety and Health (NIOSH) provides a free Sound Level Meter App for iPhones. (Sound Meter & Noise Detector is a good alternative for Android users.) You can get professional-grade results by attaching an external microphone, but using your phone’s built-in microphone produces a reliable measure.

The CDC recommends noise levels of 70 dBA or less as safe. As the American Speech-Language-Hearing Association (ASHA) puts it, “You can listen to sounds at 70 dBA or lower for as long as you want.” But prolonged exposure to noisier environments causes eventual hearing damage and hearing loss. That’s why the CDC and OSHA set “noise dose” limits on work environments with 85 dBA or above.

A chart showing the decibel scale relative to common sounds and noises.
Source: Decibel Scale (dB) OSHA.gov

Coronavirus background noise: what can I do about it?

Optimizing the sound environment for our “home office” comes down to three key ingredients: headphones, microphones, and soundproofing. If that list sounds like we’re getting ready to produce the next hit song, it’s because the technology once reserved for professional sound engineers has made its way to our everyday lives. Ready or not, we all work and live in spaces that sometimes need to function like a sound booth or a video production studio. Fortunately, setting up our rooms for good sound is not as complicated as it used to be.

Hearing better with headphones

Most laptops come with a built-in microphone that adequately captures speaking sound without picking up too much background noise. So, it’s best to use headphones or earbuds to listen and your laptop’s mic to capture sound. However, some plug-in (“wired”) headphones come with a built-in microphone that can be troublesome. When you’re not speaking, the mic can misinterpret background noise as a soft voice and actually increases volume to compensate. That means your listeners hear the amplified sound of your refrigerator hum, your air conditioner, or kids playing in the next room. That’s why most online conferencing “rules” include muting your microphone when you’re not speaking. If you do a lot of online conferencing, you could investigate dedicated microphones that are better at identifying background noise. You might also consider a “gaming headset,” specifically built to reduce background noise and make ongoing conversation easier.

Soundproofing for healthy hearing at home (or office)

Technology will help improve the sound quality of our online conferencing, but the room itself can be optimized for sound. Consider a rug to cover hardwood floors. Sound baffling panels can be artfully arranged along hard-surface walls. It also might be time to invest in ultra-quiet appliances, especially space heaters or fans that can be the major culprits behind disruptive background noise.

Take it forward

Reducing noise levels is a practical concern amid COVID-19 work-from-home conditions. But these same best practices will work at the office, too. In fact, it’s likely that we’ll see an increased use of online conferencing as we cautiously return to office buildings and continue to limit our travel. Investments in good technology, and even a little sound baffling for the office walls, can pay long-term dividends. Busy offices might even take a cue from innovative classrooms that use fun sound monitors to help raise awareness (and decrease levels) of shared-space noise.

We’re learning many lessons from our pandemic experience. I hope that our awareness of noise environments and solutions for hearing better and hearing safely will stay with us well into the future. Not only will we have better sound quality and communication in our online conferencing, we’ll also better protect our hearing health for years to come.

Akoio™ is dedicated to helping everyone improve health and wellness through better hearing health and personal soundscape management. Founded and led by life-long hearing aid user and accessibility advocate, Bill Schiffmiller, Akoio is a certified Disability-Owned Business Enterprise (DOBE). We want to help you Conquer Life.™ © 2020 Akoio Enterprises, Inc.

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