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Hearing loss which is caused by too much exposure to excessive noise or by the aging process always begins with the high frequencies being affected. High frequency sounds above approximately 3000 to 4000 Hz (hertz) begin to be more difficult to hear as we grow older even though other frequencies can be heard just as well as before.
The problem with the high frequency hearing loss is that the range where most of the speech is transmitted is at the same level. If you are unable to hear the consonants clearly enough that you can tell the difference, then the sound of any speech will be muddled. As the loss of hearing continues to progress, a bigger range of frequencies will be affected. A natural thing to do if you cannot understand what a person is saying would be to ask them to speak a bit louder. DOCTOR-RECOMMENDED SMOKE DETECTORS FOR SENIORS, HEARING AID WEARERS AND PEOPLE WITH MODERATE HEARING LOSS. Audiologists emphasize it's not enough to be able to hear a smoke alarm, you must be awakened by it.
The Loudenlow™ Alarm is superior at waking people during a fire because of its power and low frequency. Attention researchers and students: If you are interested in a Loudenlow to use in a sleep study, hearing study, or other research project please don't hesitate to let us know. Loudenlow - Battery operated 520 Hertz Smoke Alarm for the Hearing Impaired People (HOH) with high frequency hearing loss. To learn all about The Zounds Difference, you can watch our video, which can played by selecting the marquee image above, or on the left navigation bar, or you can simply read all about Zounds Hearing with the links below. All Zounds hearing aids are engineered with breakthroughs in advanced audio technology, made possible by our 57 exclusive patents. At the core, each Zounds hearing aid is specifically programmed to match your own unique hearing loss. Among the host of amazing features, Zounds hearing aids’ Intuitive Noise CancellationTM never ceases to amaze people. Zounds hearing aids utilizing the Intuitive Noise CancellationTM cancel the background noise and enable multiple directional microphones to form a “Cone of Listening”. One of the revolutionary features found in Zounds hearing aids is the Dynamic Feedback Cancellation.


Feedback is the result of sounds leaking from the hearing aid speaker, often reflecting from an object like a phone, and going back into the microphone, which then becomes amplified to the point where it cannot be amplified any more. Many of today’s hearing aids simply amplify any and all sounds within our listening environment, not amplifying the specific sounds you need while limiting those you do not. The Shock Sound SuppressionTM technology found in each Zounds hearing aid is constantly listening for such fast, drastic and loud sounds found within your listening environment. Many hearing aids found on the market today are simply programmed, with basic amplification as their main call to action.
In addition to these amazing features, each model hosts its own unique additional features.
Look at the audiogram below to get an idea of the placement (by pitch and intensity) of familiar sounds such as a dog barking or a telephone ringing or different sounds of speech. Speech discrimination, or word recognition, is scored as a percentage of words that can be repeated correctly at a comfortable intensity level in quiet with no background noise. Because only selected frequencies are affected this type of hearing loss presents specific problems in trying to make sense of speech. Vowel sounds are normally well below this range but there are particular consonant sounds that have frequencies above the level of 3000 Hz. It may be that you can hear people talking but there are certain occasions when you cannot understand exactly what is being said as it is not sounding clear. The speech you hear might sound like vowels being spoken but with no separation in between. This causes a problem for people with high frequency hearing loss because once the person starts to speak louder it is only vowels and consonants that are voiced. The person is now speaking louder and the vowels are not causing any problems but you still have difficulties in understanding what they are saying.
5000 to 8000 Hertz is where high frequency sounds and important consonants for understanding speech are found, such as the “t”, “ch” and “s” sounds.
As a result, Zounds hearing aids provide rich, high fidelity sound for better speech intelligibility, including the difficult to hear higher frequency speech sounds such as “t”, “ch” and “s”. The chatter from others at a restaurant or party may overpower the voices or conversations taking place in front of you.
The directional microphones continually scan your environment and focus on what is in front of you, increasing your ability to understand speech in noisy environments.


A tight, oversized hearing aid shell is produced in an attempt to form a tight seal between the hard hearing aid shell and the soft ear canal walls.
Zounds hearing aids’ sophisticated Dynamic Feedback Cancellation identifies the amplified sound leaking around the hearing aid and electronically eliminates most of it before it can squeal. The result is all too often, a painful sensation where sounds you do not want to hear are amplified well beyond your comfort level.
When identified, your Zounds hearing aid will suppress or lower the sound to a comfortable level.
These hearing aids lack the ability to work with you not only in challenging listening environments, but are not sophisticated enough to adjust accordingly as you move from one room to the next.
Also, Emory Healthcare does not endorse or recommend any specific commercial product or service. If you add on a loud environment such as a party, restaurant or bar this leads to increased difficulties in being able to hear speech. It’s the same issue found in an auditorium when a microphone is placed too close to a speaker. As referenced in the image above, the white sound waves have exceeded into the orange area, which represents the uncomfortable spectrum of our hearing. As referenced in the above image,Shock Sound SuppressionTM identifies an aggressive sound and suppresses it, keeping the white sound waves within the dark gray area, which represents our comfortable spectrum of hearing. This Web site is provided solely for personal and private use of individuals accessing this information, and no part of it may be used for any other purpose. At times ch and sh can also be difficult to tell the difference and the phrases below may all sound similar. Another indication of high frequency hearing loss is male voices are more easy to understand compared to females and children because the voices of males are normally at a lower frequency and hence sound as though it is pitched lower. After witnessing her frustration with her under-performing hearing aids, Sam made it his mission to properly engineer a hearing aid that works.  The result is a line of technically superior products that will change your life. A poorly programmed hearing aid will pick up this already loud sound and amplify it without knowing that it’s a sound that should not have been amplified in the first place.



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