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Noise harms more than the ears.


“Calling noise a nuisance is like calling smog an inconvenience. Noise must be considered a hazard to the health of people everywhere.”

– William H. Stewart, former U.S. Surgeon General

Noise isn’t just annoying. It isn’t just bad for your ears. It’s bad for your health. Noise causes higher blood pressure and cortisol levels, which leads to heart disease. Students learn less and workers make more mistakes when exposed to too much noise in the environment. Research continues on the effects of noise on the immune system and birth defects.

The New York Times published an article on noise in NYC establishments. “The New York Times measured noise levels at 37 restaurants, bars, stores and gyms across the city and found levels that experts said bordered on dangerous at one-third of them.” Some restaurants were simply unaware of the danger and pledged to look into it. Restaurants like to play loud music because it makes people eat faster and leave sooner, so significant change is unlikely. (If you’re looking for a quiet(er) place to eat in Santa Barbara, check out my patient-recommended restaurant list.)

As I was investigating this, I actually found an organization called Quiet Communities, whose mission is to make communities quieter. I love that.

The History of Oticon Hearing Aids


Acousticon Hearing Aid invented by Miller Reese Hutchison

Oticon began with a Danish man named Hans Demant in 1903, who wanted to help his hearing impaired wife. The popular Queen Alexandra of Great Britain had worn the first portable hearing aid at her coronation the year before and Hans traveled to England to buy one for his wife. Motivated to help others with hearing loss, he began importing them to Denmark. Eventually Oticon began manufacturing their own hearing aids in 1940.

Every hearing aid manufacturer seems to focus its engineers on a particular task. Most recently, Oticon spent its energies developing a faster processor. The theory is that it can handle noise better, especially when dealing with multiple talkers. While it’s not the hearing aid for everyone, I have been impressed with the results in the patients I have chosen it for. For all you engineers and, what my dad calls “tinkerers”, here is an explanation of what they did.

Audio Spectrum Explained

A patient of mine just told me about a website that explains the audio spectrum, audio production, microphones, sound waves, sound perception, and more: Teach Me Audio: No nonsense guide to Audio Production. Speech is between 250 and 8000 Hz, so those are the frequencies that get tested in an audiogram. (Actually, sometimes I test higher than that if someone is starting chemotherapy. Chemo is ototoxic and the toxicity shows up first in the ultra high frequencies. So I test above 8kHz before and at intervals after chemo. If hearing drops above 8 kHz, the oncologist knows chemo has reached ototoxic levels and they may choose to tweak the dosage a bit.)

While the whole website is fascinating, the Audio Spectrum page can help you check your hearing aids. If you can’t hear part of the frequency range between 250 and 8000 Hz when you’re wearing your hearing aids, they may need to be reprogrammed.

Tinnitus

Tinnitus means noise in the ears or head. Hearing aids can help a LOT. Either the amplification of a hearing loss masks the tinnitus, or a tinnitus masker reduces stress by competing with it. It doesn’t seem like adding more sound to the tinnitus would help, but it does. One of my patients said, “It’s like it competes with the tinnitus, so it sort of keeps it in it’s place. Most manufacturers include a tinnitus masker in their hearing aids. Widex makes one that is particularly effective. Here are samples of the some of the masking “noises” it makes.

Sand
Aqua
Green
Lavender
Coral

Everyone’s experience is different. It can sound like ringing, buzzing, or whistling, among many other sounds. It is often just a minor annoyance, but not always. Sometimes it’s severely stressful, even to to the point of causing serious depression. William Shatner shared his experience when he was the spokesperson for the American Tinnitus Association.

Telecoils

Telecoils are an old technology from the late 1930s and most hearing aids have them. They were originally designed to help hearing impaired people hear clearly on the phone. Today, they are used more often in theaters with an induction loop. A room is “looped” with a wire that receives the sound signal from the stage and then transmits it to the hearing aid. This turns hearing aids into something like a custom headset. A California hearing aid impaired group recently tried to pass legislation requiring audiologists to include a telecoil in every hearing aid. I encourage everyone to choose one with a telecoil, but, for some people, they’d rather forgo the feature in favor of either a smaller hearing aid or another feature like rechargeable batteries. If you have hearing aids and aren’t sure if you have a telecoil, you’re welcome to come by and I’ll check. If it’s in the aid, but not activated, it’s pretty easy to do so. I have included a video explanation of how a looped room works with a telecoil in the Hearing In Noise section of this website. Ampertronic has a history of the induction loop on it’s website.

If This, Then That (IFTTT)

“If This, Then That”, or IFTTT is a cloud service that uses connections, called applets, to link internet enabled devices (like a TV, door bell, lights, or fire alarm).  It can also link devices to online services (like your email account, Facebook, or Twitter).  So hearing aids can now do some pretty useful and fun things you may never have imagined.

 

  • Your hearing aids can tell you when you get an email or when the door bell rings.
  • A mom can get an alarm on her phone when her daughter’s hearing aid batteries go low.
  • Your coffee maker can start when you close the battery doors on you hearing aids each morning.
  • You can hear a live music concert through your hearing aids.

 

Watch this video to see what I mean.

The website for the cloud service is www.ifttt.com.

Hearing Aid Batteries

Tips to Prolong Rechargeable Battery Life

Rechargeable batteries last about 1 year and cost about $30 each.  How long a charge lasts depends on how much you stream phone calls and media and how severe your hearing loss is.

18-19.5 hours      No streaming

16-17 hours          90 minutes of streaming

15-16 hours         4 hours of TV and 1 hour of phone streaming

1. Charging

Always fully charge the batteries, until the light in the charging dock is solid

green – it takes approximately 7 hours.

2. Out of power

If the batteries are drained and the hearing aids have switched off, never try to

get more use by opening and closing the drawer. Either:

a. Place the hearing aids in the charging dock and ensure it is powered on.

b. Insert disposable batteries and keep the rechargeable batteries safe for

charging later.

3. Not in use

If you are not using your hearing aids for an extended period of time, take the

batteries out.

Note: Avoid leaving the rechargeable batteries in the hearing aids with the

battery drawers open. This will compromise battery life.

4. Handling

Don’t keep the rechargeable batteries together with metal objects such as keys

and coins.

5. Maintenance

Wipe off any moisture on the hearing aids or charging dock before charging

using a soft tissue. Do not use rubbing alcohol or other chemical substances.

Tips to Prolong Non-rechargeable (Zinc Air) Batteries

Zinc-air batteries will last from 4 days to 2 weeks, depending on the size of the battery.  Prices vary dramatically.  At the drug store, you’ll pay about a dollar per battery.  At Costco or Amazon, it’s about 25 cents.  We have batteries too.  They’re about 90 cents each because we can’t buy in bulk.  We will mail them to you though.

1. Wait 5 minutes after you take off the tab before you put the batteries in your hearing aids.

2. Open the battery doors at night.