Important Links

www.audiology.org
(AAA or American Academy of Audiology),

www.ahaanet.com
(AHAA or American Hearing Aid Associates).

Click here to view an
Interactive Ear Diagram

Tips
Have you ever noticed that hearing aid batteries decide to die whenever you don't have any handy? Try this! When you take the little paper tab off of a new hearing aid battery, put it on the calendar. This will help you figure out how long a battery will last (if you haven't figured that out already). Now you can tell with a quick glance at the calendar when it's time to change batteries, before they stop working (or at least make sure that you have some spares with you).

Concha Audiology feels it is very important to educate. We encourage you to ask questions when you have an evaluation. Our web site is a valuable resource covering hearing health care. Let's get started. Here you will find a brief self test with 10 questions. Here you will find out how the ear works. Read more about Digital Hearing Aids ?. Find out what changes you can expect with a new hearing device, go to Coping with the change. Here are some tips to get you started. Your auditory system is very complicated. Here is a helpful newspaper article Del Concha wrote using a piano analogy to explain how your auditory system works. Find out about the types of hearing aids that are available.

Have a question? Email (delconch at lisco.com)


Here are 10 questions which you can ask yourself to determine if you need to have a hearing test.

  1. I often have to ask people to repeat what they have said.
  2. I can hear, but sometimes can't understand all the words.
  3. I don't hear as well as I used to.
  4. I have trouble hearing in noisy places.
  5. I have trouble following group conversations.
  6. My family tell me I turn the radio and TV up to loud.
  7. I have a lot of trouble understanding children.
  8. Sometimes I turn to my spouse or family member for them to repeat what someone else has said.
  9. I have trouble hearing in church, at the theater, and at other larger gatherings.
  10. People tell me I don't hear well.

If you answered "yes" to two or more of the above, you should contact a hearing health professional for an evaluation. The longer you wait, the more difficult it will be to help you.
Call Concha Audiology to schedule an appointment. Choose from four locations:

  • Mt.Pleasant Office         319-385-9030 or 1-800-475-9110
  • Fort Madison Office     319-372-2999 or 1-800-569-891
  • Coralville Office             319-545-7125 or 1-866-272-7965
  • Keokuk Office                  319-526-6365 or 1-800-569-8919


top of page


How the ear works.

The ear is composed of three parts, the outer ear, the middle ear, and the inner ear. The outer ear consists of the pinna, the part you see on the side of the head, and the outer ear canal. Sound enters through the outer ear canal and strikes the ear drum, which is the outermost boundary of the middle ear. The sound which strikes the ear drum is transmitted through three bones of the middle ear to the inner ear. The three bones are the malleus (hammer), incus (anvil), and stapes (stirrup). The footplate of the stapes fits into the oval window, which is the outermost boundary of the inner ear. The movement of the footplate causes fluid in the inner ear to move. The bones provide a mechanical advantage which moves the fluid.

Without that mechanical advantage, sound bounces off the fluid in the inner ear and the result is a serious loss of hearing. The inner ear is a fluid filled sac encased in bone, which gives it maximum protection from injury. The organ for hearing is the cochlea (pronounced "cock-lee-uh"). It contains approximately 20,000 cells which can sense movement of the fluid. When these cells sense movement of the fluid, impulses are generated in the nervous system. These impulses pass through the auditory nervous system and eventually reach the brain. The brain is the center for discriminating sounds from one another and eventually associating words with ideas. See an interactive picture of the parts that make up the ear.


top of page



What is a digital hearing aid?

Technology is a wonderful thing. With the advent of the microchip and the growth of the computer business it was bound to happen that computer technology has made it into hearing aids. The latest trend in hearing aids has been toward the development of digital hearing aids. Digital means the hearing aid has a digital microprocessor within it. Much like the processor in your computer. The processor takes an incoming signal (sounds) and converts it into ones and zeros. The ones and zeros are then manipulated by the processor to fit into certain frequency and loudness ranges. The information is then decoded and sent into the patient’s ears as sound. The microprocessor does this at such incredibly fast rates that the wearer only perceives sound. The loudness and frequency ranges of the sounds are determined by the Audiologist who enters your hearing test information into a computer. Programs within the Audiologist's computer will allow the hearing aid to be set to fit your hearing range. Most often digital hearing aids do not come with volume controls. The hearing aid will automatically adjust the volume to fit within your range of comfort. Some digital hearing aids come with multiple programs which can be modified for particular listening situations. In addition, digital hearing aids offer many advantages over conventional hearing aids. Advantage one is that the hearing aid has no moving parts, so there is hardly anything to adjust.

Advantage two is difficult to fit hearing losses can be more accurately matched. Advantage three is the availability of noise reduction features such as directional microphones, speech sensitive processing programs, adaptive feedback reduction and noise squelch features. The fourth and most promising is that the hearing aids can be programmed to adapt to differing listening environments and switch accordingly for those environments. Almost all of the newest generation of digital hearing aids have some or all of these features. Some of the companies who offer digital hearing aids are: Siemens, Phonak, GN ReSound, Telex, Widex and Oticon, just to name a few. As for price, digital hearing aids are definitely not the least expensive. Prices most often range above $2000.00 each for this technology. Buying a digital hearing aid is not going to make you younger, or hear better than you did when you were 20 years old. In most cases a programmable non-digital hearing aid at half the cost may suit your listening situations just as well. Digital hearing aids are great, if fit properly and adjusted properly, but, they are not always the best choice for everyone. You should consult your Audiologist for a more thorough discussion of this subject. Most Audiologist’s offices should allow you to try the hearing aid for a certain period of time, usually 30 days.


top of page



Coping with the changes in your life.

General Guidelines
Adapting to your hearing aids may take time. Be patient. Adjustment rates may vary between people. If you're having difficulty, don't give up. Contact our clinic for assistance. Think of hearing with your new hearing aids as having been in the dark for a long time and coming out into the light. You will squint until your eyes adjust to the light.
Be Patient
You are hearing in a new way that is not "natural". In your first few days of wearing the hearing aids you will have to learn how to "listen" with your new ears. Just remember that you have been in the dark with your hearing, now you are coming out into the light. Eventually things will start to sound "normal" after a few weeks. Remember millions of people have gone through what you will go through and things turned out fine.
Quiet Situations
Try to avoid excessively loud situations like basketball games or huge parties in the first couple of weeks. After a couple of weeks you can gradually begin to involve yourself in different noise environments.
Position Yourself
Situate yourself in a room so you're directed toward the sound you want to hear and keep distracting noises to your side or back..
Practice Localizing
Try to determine from which direction a sound is coming and estimate the distance from the sound source.
Sort Out the Noise
Amplified sounds may seem unnatural, particularly if you're not accustomed to hearing them. Certain features of hearing aids are able to reduce the problems this causes, but background noise is still a concern for many hearing aid users. You must relearn to separate the sounds, identify them, and tune out the noise all over again (listening ability).
Know Your Limits
Wear your hearing aids in as many listening environments as possible. Learn what you can and can't adapt to. Remember to use communication strategies in difficult listening situations.
HAVE REASONABLE EXPECTATIONS
Our Audiologists will counsel you on reasonable expectations. Carefully consider the limits they set for you and be willing to accept limitations. The more you are accepting of your circumstance the less frustrated you will become.
Common Experiences
Hearing aid users encounter some common experiences. Contact our clinic if you have difficulty with any of these situations.
All Sounds Seem Loud
You are reentering a world of sounds you may not have heard for a long time. Expect things to seem loud at first. Because you have a hearing loss you lose ability to judge loudness of sounds properly. As you listen more with the hearing aids you will begin to put the judgement of loudness in appropriate categories. The sounds should never be so loud they cause physical discomfort.
I Hear Speech But I Can't Always Understand It
Hearing aids can help improve speech understanding but cannot restore that ability to normal levels. In some situations, especially when there is a background of noise, you may have difficulty understanding parts of what people say. Even people with normal hearing cannot always hear everything being said. Try to use your vision to supplement your hearing (speech reading) and place yourself in an optimal listening position to help your communication. Wearing two hearing aids may also improve your ability.
My Voice Sounds Different
Your voice is now being heard through an electronic instrument which is not the same as hearing it naturally. Most hearing aid users adjust to this difference in a matter of weeks. Give yourself time to adjust to the new sound.
The Hearing Aids Are Noisy When I'm Outside
When wind hits the microphone of the hearing aid, it can cause excessive noise. A wind screen placed over the microphone may help reduce the noise. Also, certain new hearing aid technologies have wind noise reduction circuitry within them that adjust automatically to reduce wind noise.
My Ears Feel Plugged
When wearing the Hearing Aids this feeling may gradually lessen as you adjust to wearing your hearing aids. If not, contact our clinic for possible modifications to reduce this discomfort. There is also new hearing aid technology which reduces that plugged up sensation.
Restaurants Seem Too Noisy

IIn restaurants, request a booth instead of a table. Try to sit with the noise to your back or sides. Never sit by the front door or facing the kitchen or cash register. Sit facing the person you want to pay attention to.
Improving Communication
Communication is extremely important to all relationships but a hearing loss can have a profound impact on a person's desire to interact. Frustration and embarrassment from the inability to communicate may lead to withdrawal from social situations along with feelings of isolation. The following strategies will make communication easier.
Strategies for Friends & Family
Get the listener's attention before talking. Be patient with hard-of-hearing listeners. Repeat information once then rephrase the message to clarify. Speak clearly and slowly but don't exaggerate mouth movements. Don't shout or speak too loudly. Provide the listener with the topic and identify topic changes as needed. Look directly at the person when you speak. Avoid speaking from another room or with your back turned. Encourage guessing. Keep a sense of humor about communication errors. Encourage the listener to use hearing aids and other assistive listening devices. Modify light and seating arrangements if necessary to provide the listener with an unobstructed view. Eliminate or reduce competing noise. Turn off the television or stereo, move away from fans and air conditioners, or seek a quieter room. Make sure only one person talks at a time. Be understanding and caring when someone with a hearing problem asks you to help him/her understand better. Seek additional communication and coping strategies from an audiologist at our clinic.

Strategies for the Person with Hearing Loss
Pay close attention to the face and gestures. Be patient with yourself. Rephrase what you heard to verify information. Ask for repetition only once, then ask the speaker to rephrase. Think of new ways to ask for repetition (other than "Huh?"). Ask for the topic and then verify the topic. Inform speakers about your hearing loss and how they should speak to you. Ask others to look directly at you when they speak, to come closer if necessary, and to speak slowly and slightly louder. Keep a sense of humor about communication errors. Use your hearing aids and other assistive listening devices at theaters and places of worship. Modify light and seating arrangements if necessary to obtain an unobstructed view. Eliminate or reduce competing noise. Turn off the television or stereo, move away from fans and air conditioners, or seek a quieter room. Make sure only one person talks at a time. Be understanding and caring when someone forgets you have a hearing problem. Seek additional communication and coping strategies from an audiologist at our clinic.

top of page



Helpful tips

Signs your batteries are dying
The hearing aid may cut in and out, voices may start sounding fuzzy or distorted, you feel you need to turn the hearing aid up or the hearing aid may just die out. If you notice any of these signs replace the battery with a new one. If this solves the problem, then it was the battery that was the problem. Note on the calendar the date on which you replace the battery. When you replace the battery again, always note the date you replace the battery so you can keep track of how long your batteries last. If problems still persist after replacing your battery have it inspected by your Audiologist or hearing aid dealer.
Proper disposal
Immediately dispose of replaced batteries to avoid confusing them with the new battery.
Battery care
Do not place zinc-air batteries in the refrigerator or freezer, it will not prolong the life of your batteries, it may cause condensation to plug the little hole on the battery where the air is supposed to circulate, thus, causing your batteries to work inefficiently.
Be Careful
If you have vision problems do not store batteries near medications in order to avoid accidentally ingesting the batteries.
Time Battery Changes
Replace batteries prior to going to important social events especially if you are coming close to end of your battery life. Always keep a spare pair of batteries on hand for emergencies.


top of page



Hearing Health Care

Hearing loss is one of the most common health problems in people over the age of 65, but it can occur in any age group. Do you ask people to repeat what they say? Do you often turn your ear toward a sound to hear it? Do you hear better when you’re looking directly at someone’s face? Do you find it hard to follow conversation when you’re in a group of people? These are signs of hearing loss.


Unfortunately, not too many people know where to go for help. Others, live in denial of the problem and live in silence, missing important conversations or even putting themselves or others in danger. The auditory system is a very complicated system, made up of the brain, nerves, bones and membranes. To describe it more simply, it is like a piano. A piano consists of black and white keys, pads and strings. The eardrum and ossicular chain otherwise known as the hammer, anvil and stirrup are like the keys and pads of the piano. The strings of the piano are like the nerves in our hearing system.

Pianos are arranged with a low pitch range progressing to a high pitch range. Our auditory system also has a low and a high pitch range . If you have had your hearing tested, you may have been told that you have some type of hearing loss. There are several categories of hearing loss. Sensorineural hearing loss is sometimes referred to as “nerve” hearing loss or even as “nerve deafness”. This type of hearing loss affects the strings of the piano. Conductive hearing loss is a type of loss that affects the keys or pads of the piano (the ear canal, the eardrum or the ossicular chain). Mixed type hearing loss affects both the nerves and outer and middle ear. The piano strings, the piano keys and pads are affected.

All the sounds we hear are made up of many different pitches, speech sounds included. Just like music is made up of different pitches. Most of us are born with normal hearing, the piano strings are intact and tuned, the piano keys and pads are not sticky and are easy to press. One can hear a pin drop in the next room, like a light touch on a piano key makes a tone. As we go through life we hear many different voices, like so many different songs. Some songs or voices are pleasant to hear, others not so pleasant. We also hear very loud sounds like guns, saws, jackhammers, tractors and stereos. These loud sounds bang the piano keys very hard and rattle the piano strings. Eventually something breaks or becomes loose.

That is when you notice that things just don’t sound like they used to. Usually, it is your family or friends that notice your hearing loss first. The t.v. or radio is turned up loud, they comment that you are talking loud or that they have to repeat themselves to you quite often.

With encouragement and support you finally decide you need to do something. The most qualified person to assess your hearing system is an Audiologist. They are University Educated specialists with a minimum Masters degree in Audiology. They are licensed and certified by the state and have gone through years of rigorous training in all disorders of the hearing system. You may be given a battery of tests which are designed to assess the outer ear, middle ear and the integrity of the nerves.

Upon examination you may be informed that you need help with your hearing. Most often hearing aids are recommended. What a hearing aid essentially does is push the piano keys a little harder for you, in turn you get to hear sounds a little better. It is the job of the Audiologist to fine tune the hearing aid so that it pushes the piano keys just the right amount in the appropriate pitch range so that soft and loud sounds are comfortable for you.

There are many choices in hearing aid styles and circuit types. From the very tiny completely in-the-canal hearing aids to behind-the-ear style hearing aids. From basic analog circuits to 100% digital circuits. The Audiologist will look at many factors including your general health and lifestyle in order to assist you in choosing the most appropriate hearing aids. Unlike glasses, if you have the same amount of hearing loss as your neighbor you may not be able to wear the same hearing aid as they have.

Hearing aids are custom designed and fit for your particular needs and lifestyle, if done properly. Price can vary, from several hundred dollars to several thousand dollars. It is important that you never feel pressured into making any decision without first consulting someone you can trust. Make sure that you can have ready access to services should your hearing aid need repair. Look for hidden charges in contracts which require you to place a deposit on the hearing aid. Make sure you have the opportunity to try the hearing aid and return it if you are not satisfied. Do not feel shy about asking questions or voicing concerns, whomever you choose to provide you with these services should be willing to answer your questions.


top of page




Behind-the-Ear (BTE) hearing aids are those devices that rest over the ear, as glasses do, and have a tube that connects the instrument with a mold that is in the ear. This instrument has the largest battery (size 675) and has the longest battery life (roughly 4 weeks). This is the type of hearing aid recommended for children, as they are durable and the ear mold can be remade as the child grows without having to purchase a new hearing aid each time. Pros: 1) provides the most power, allowing for more adjustments if hearing becomes worse 2) it is easier for some people to see the batteries and use this hearing aid if they have poor vision or poor feeling in their finger tips 3) if excessive wax or outer ear infections tend to be a problem, this hearing aid is not housed in the ear so the working parts are not damaged by the substances. The ear mold can be disconnected from the hearing aid and washed. Cons: 1) this hearing aid could be the most visible to others 2) wind noise can be more audible with this hearing aid 3) this hearing aid may feedback (whistle) if a brimmed hat is worn.

In-the-ear (ITE, full shell) hearing aids are those devices that fill up the entire bowl of the ear. This instrument can have one of two battery sizes, depending on the size of the ear. The first type is the taller of the two (size 13) and has a life of roughly three weeks. The second battery type is shorter in size (size 312) and has a life of 2 to 3 weeks. Pros: 1) provides less power than the BTE style, but is the most powerful hearing aid that is contained in the ear 2) longest lasting battery for hearing aids that fit into the ear 3) there are features available on this hearing aid that are not available on all in-the-ear instruments Cons: 1) wind noise can still be a consideration 2) can become clogged with wax, that can effect the working parts of the hearing aid 3) it can sometimes be more difficult to tell the left hearing aid from the right one (as is the case with the styles that fit into the ear).

In-the-canal (ITC, half shell) hearing aids are those devices that fill up the opening (canal) portion of the ear and extend slightly into the bowl portion of the ear. This instrument generally has one battery size (size 312) and the average battery life is roughly one to two weeks. Pros: 1) wind noise is reduced with this size of hearing aid 2) less visible to others when in the ear 3) easier to see and manipulate while providing some cosmetic appeal Cons: 1) reduced power, making this not strong enough for some hearing losses and there is less room to make changes if hearing becomes worse 2) less control over the instrument by the wearer (ex. volume control may not be available) 3) not available to all individuals based on ear canal size.

Micro-canal hearing aids are those devices that fit farther into the canal than the ITC style, but still have a small portion in the bowl of the ear. These devices generally have a battery (size 312) life of roughly one to two weeks. Pros: 1) wind noise is significantly reduced 2) not noticeable to those around the wearer 3) takes advantage of the ear's natural ability to funnel sound into the ear Cons: 1) less powerful than a hearing aid with a larger battery, also less room to make adjustments if hearing changes 2) not available to all people based on the size of the ear canal 3) more likely to be effected by wax and moisture in the ear.

Completely-in-the-canal (CIC) hearing aids are those devices that fit entirely in the ear and cannot be seen. These devices can use one of two battery types. The first is the larger of the two (size 10) and has a life of roughly a week. The second battery type (size 5) is very small and has a life of roughly a week or less. These hearing aids are removed from the ear by pulling on a small string that resembles fishing line. Pros: 1) cannot be seen by others 2) can help keep moisture in the ear, for those that my suffer from dry ear canals 3) the hearing instrument can be made in a color (red for the right ear and blue for the left ear) so that it is easier to tell in which ear the device belongs. Cons: 1) this device has a limited range of power that is not available to all people and has less of a range to make adjustments if the hearing becomes worse 2) if there are problems with jaw popping, the hearing aid may "walk out" of your ear, creating feedback (whistling) or an uncomfortable fit in the ear 3) the wearer does not have control over the volume of the hearing aid.


top of page