Xenophilia (True Strange Stuff)

Blog of the real Xenophilius Lovegood, a slightly mad scientist

Archive for January 26th, 2013

Hearing Test – high frequency sounds measure hearing loss

Posted by Anonymous on January 26, 2013

We got a lot of positive feedback on our “Can You Hear Like a Teenager? ” article, and it inspired us to take it just a little bit further.

Here is a list of tones that go from 8Hz all the way up to 22,000Hz. It’s fairly common for people who are over 25 years of age to not be able to hear above 15kHz, so this will help you find out where your high frequency hearing cuts off.

Musicians have a much higher risk of hearing loss that most people do, and many of us don’t really wear proper hearing protection. Even just listening to an iPod for an extended period of time can permanently damage your hearing. We also gradually lose our high-frequency hearing as we age.

Take our unscientific hearing test: listen to each of these tones and let us know where your hearing cuts out:

8 kHz10 kHz

12 kHz

14 kHz

15 kHz

16 kHz

17 kHz18 kHz

19 kHz

20 kHz

21 kHz

22 kHz

Listen here: Hearing Test – high frequency sounds measure hearing loss.

I’m using iPhone earbuds and 12 kHz is loud, but I can barely hear 14 kHz. Everything above that is just the initial click… possibly a pressure, but no sound. Can anyone else using iPhone earbuds hear these higher sounds?

Apple says they have a Frequency Response of 20 Hz to  20KHz, so I think they are playing the sounds. I probably just have to admit my hearing loss. I did clear up that the constant ringing in my ears is about 14 KHz.

Woah, when I played 8 KHz the ringing in my ears seemed to stop for a few seconds….Cool.  More experimenting to do on this… I should sweep the entire spectrum slowly and see what happens.

Posted in Biology, Physics | Leave a Comment »

Non-Surgical Cure for Some Tinnitus?

Posted by Anonymous on January 26, 2013

This tinnitus reduction therapy is primarily aimed at combating temporary tinnitus. Tinnitus is a very complicated thing to isolate and break down. There are many possible causes and triggers which vary from sound trauma to stimulants or even just a stressful experience. Due to this, we concentrated on investigating the cause of one particular type of tinnitus and then in developing a remedy to this. Our Somtus™ therapy is designed to remove the ringing that is caused from loud sounds such as concert music, environmental noise or after using headphones. It has been tested extensively and demonstrated a 99% success rate in hugely reducing or removing the temporary tinnitus. In addition to this, it plays a part in removing residual headaches initially caused by the tinnitus. In effect it works towards restoring the quality of hearing that the individual had prior to experiencing sound trauma.

… Your ear contains a structure called The Cochlea. This sea-shell shaped part of your ear is brilliant in design. There are sound receptor cells positioned within this. Each of these cells is a sensitive hair like structure which responds to the slightest sound vibration entering the ear. Imagine looking at the very fine hairs on your skin and blowing on them. Each hair will bend over and back in tune with the breeze. The more you blow, the more they bend.

Cochlea

This is just like the cochlear hairs in your ear. The louder the sound waves entering your ear, the more these hairs bend. As they move in tune with the different strengths and frequencies of sound, they send signals via the auditory nerve to your brain. The brain then decodes these signals into individual sounds and lets you hear full songs or conversations.

Cochlea

As you get older, some of these hairs weaken, bend and in the worse case break. This can cause natural loss in hearing ability. Much like any natural body part, age is responsible for the hairs not responding as quickly or sensitively to stimuli.

However, if you introduce very loud sounds from audio equipment or industrial machinery for instance, you cause these hairs to bend over severely and in some cases they break or get stuck on other hairs. The ones that break are unfortunately destroyed but the ones that get caught on other hairs are temporarily irritating. They are still sending signals to the brain and interfering with other hairs. In most cases this causes a phantom or false signal to be sent to the brain and the brain decodes this into a sound for you to hear. But this sound is not actually there. Like any other interference signal on radios or speakers, it is annoying and distracting. This is temporary tinnitus.

Sound Damage Mircrographs

Sound Damage Mircrographs

That explains the problem and the therapy is just as simple to explain. We realised that this interference from the cochlear hairs could be ended if the hairs could be manipulated back into position, in other words, re-straightened. Since sound waves caused this physical movement of hairs it was reasonable to assume that sound would also be capable of re-straightening them. Our Somtus™ tinnitus therapy works just like a comb being moved through hair. Those that are straight and not stuck to other hairs remain unaffected but those that are caught on other hairs are gently aligned back into position.

This immediately solves this problem of temporary tinnitus and helps the individual restore their normal hearing that they had prior to the sound trauma. Because the temporary tinnitus is eliminated or severely reduced, the stress of the situation diminishes, the residual headache associated with the ringing decreases and the ability to concentrate, relax or sleep increases. All of this is achieved within the time it takes for sound to move through the cochlear hairs. That is why our therapy lasts only one minute and is completely safe. It addresses the root of the problem in the same way as the original problem was caused. It also uses sound to manipulate the hairs and since the hairs were designed to respond to sound, they adjust themselves very quickly and without undue stress.

Somtus™ is a scientifically tested and verified method used to reverse an over stimulation of the ear. It will not re-grow hairs that have been broken by excessive damage but it will gently move the bent and interfering hairs back into their natural position. Thus the temporary tinnitus is very short lived and the individual can go back to their original state of hearing and get on with their life.

Because of its ease of access and fast results, it is an ideal method of removing temporary tinnitus caused by very loud sound and therefore it is highly suitable for use after concerts, listening to headphones too loudly or even being in a loud city environment for too long. The majority of our clients find it very useful before going to sleep or after arriving home. Although we strongly recommend limiting your exposure to loud noise so as to avoid broken hairs and permanent damage, this is a solution to one of the problems faced by millions every day. …

Is this a medical procedure?

No, this is a specific solution to a specific problem. It has been developed from a physics platform based on wave theory and sound energy formation. Although we are experts in the field in which we work we are not medical doctors.

via Restored Hearing.

.. Students from Ursuline College in Sligo have won the Health Research Board Special prize at the 2009 BT Young Scientist competition. Niamh Chapman, Eimear O’Carroll and Rhona Togher discovered some sounds that soothe Tinnitus – a ringing noise in the ears which often follows after being exposed to loud noises.  Their project also earned them second place overall in the competition for a group project.

Their project called Sound of Silence found that certain low frequency sounds can relieve tinnitus and give patients significantly improved hearing.

‘We downloaded a low frequency sound generator programme from the internet, bought a set of headphones, then played potentially therapeutic sounds to people over the headphones from a laptop computer. By measuring volunteers hearing before and afterwards, we could compare results and see what sound frequencies brought the most improvement in different people,’ explained Niamh Chapman.

Commenting on the achievement, Health Research Board CEO Enda Connolly said;

‘The Health Research Board special prize celebrates research that has a real impact on improving people’s health. The fact that the girls actually came up with a potential new treatment is a real achievement.  Their project also shows that health research is not just about biology and medicine, but that subjects like physics and technology also have a lead role in health solutions.  I hope the girls go on to great research careers in their own right and that they might inspire others to apply their research to improving people’s health.’

http://www.hrb.ie/about/media/media-archive/press-release/release/113/#maincontent

.. Tinnitus is a consistent and annoying tone, whir, or buzz that originates in the middle ear and, though it may let up for a few seconds or longer, it is a fairly continuous sound.  Tinnitus is a medical condition which can have several causes, but temporary tinnitus generally does’t last longer than 24 hours and is caused by a relatively short exposure to noise.

Rhona Togher and Eimear O’ Carroll, inventors of sound therapy for temporary tinnitus, were runner-up winners of the the BT Young Scientist & Technology Exhibition this year.  Their project for the exhibition was to test their sound therapy (a 60-second low frequency tone administered through head phones) on 250 subjects who were experiencing temporary tinnitus. The therapy had a 99 percent success rate!

“After coming out of discos or listening to MP3 players they [the subjects] found they had ringing in their ears. Our therapy… stimulated and soothed the ear, O’ Carroll told BBC News.

O’ Carroll and Togher, along with their teacher, Anthony Carolan, have since formed Restored Hearing Ltd., in Sligo County, Ireland to offer their technology to sufferers of tinnitus.  You can find out more about it and order the treatment, very affordably, from their website.

The website is now creating “phenomenal levels of interest,” said Ms. O’ Carroll.

The team, which has been working on tinnitus for a few years, is now researching the effects of its therapy on persons who suffer from long-term tinnitus, a field in which minimal success has been made.

http://inventorspot.com/articles/teens_develop_60second_cure_noiseinduced_tinnitus_35772

The cochlea in the ear converts sound waves to electrical impulses that the brain processes as sound. Thousands of tiny hairs in the cochlea bend when exposed to the original sound vibrations. But those hairs can get stuck in a bent position. Which is why we hear the sound even when it’s gone.

Two young women in Ireland were studying the problem in physics class. They thought that a low hum might straighten out those bent cochlear hairs. So they developed a minute-long therapy using the hum and tested it on 250 subjects.

Ninety-nine percent of the tinnitus sufferers said the treatment got rid of the disturbing phantom sound. The two 18-year-olds and their physics teacher have now launched a company called Restored Hearing. Good news for the iPod generation from two of their own, who fought fire with fire. Or rather, sound with sound.

http://www.scientificamerican.com/podcast/episode.cfm?id=teen-inventors-fight-tinnitus-09-09-28

Very interesting! Tried each of the tones. Didn’t help me a bit. I guess I could set them up in a continuous loop from lowest to highest and listen for an hour and see if it helps. I also thought of recreating the very high pitched sound that I’m hearing to see if that helps. My sound seems to be around 14 KHz. Very high in both ears. Very loud and high, like a pressure. Day after day, night and day, minute after minutes. Driving me nuts.

Posted in Biology | Leave a Comment »

 
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