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17

It is likely you are not hearing the ultrasound itself (typical frequencies are upwards of 1 MHz, far beyond what the human hearing system is capable of detecting). You are probably hearing coil whine from the electronics -- switched-mode power supplies in particular tend to operate towards the upper end of the hearing range, and the intensity of this sound ...


12

Using headphones at a sufficiently high volume level may cause cause trauma to cochlear structure in the inner ear which gives rise to temporary or permanent hearing impairment or deafness. Sound pressure is measured in decibels and exposure to 75dB (even after long exposure) are usually safe. However, long or repeated to sounds at above 85dB can cause ...


10

According to the U.S. Department of Health & Human Services, a sudden hearing loss (Sudden Sensorineural Hearing Loss) is considered as a medical emergency as the treatment is more efficient if given as soon as possible: [...] delaying SSHL diagnosis and treatment may decrease the effectiveness of treatment. This appears in the section 1 of the ...


7

Short answer Sometimes (and yes, deafening has been used as a treatment for some patients). Tinnitus has multiple causes Although the mechanisms of tinnitus are not completely understood, many forms of sustained tinnitus are not caused by activity in hair cells. Rather, the causes involve auditory brain regions beyond the inner ear, likely due to those ...


7

Different hairs cells in inner ear (cochlea) vibrate in various ways in respond to different sound frequencies. Small temporary changes or damages in the outer hair cells of the cochlea can trigger the emergence of tinnitus by increasing the gain of the central auditory system2004. Most patients (both tinnitus and hearing loss) reports that the frequency ...


6

Perforated eardrums (or ruptured tympanic membranes) are a problem older than mankind. The majority of cases (reported/observed, ~80%) heal spontaneously with little residual hearing loss or other problems, usually in a few weeks. It is acceptable practice, therefore, to only observe traumatic TM perforations for healing. If you are still experiencing ...


5

Sound is merely the vibration of molecules in a wave pattern and so the absolute theoretical answer to your question is, yes. Something that can vibrate your molecules has the power to kill you. It just requires a great enough intensity or decibel level. (If you get anything loud enough it could shake you apart.) How loud, well a grenade is about 164 dB. ...


4

I cover the answer to the vast majority of this question in this answer. Basically, there are standards regarding the total sound exposure that is safe, but the evidence base for these standards is limited. This a a nice online calculator for calculating the noise dose. The unique part of your question relates to the difference between audiobooks and music. ...


4

The term deaf (with a lowercase d) is generally not used clinically. In lay usage it can mean various degrees of hearing loss from moderate (possibly even slight or mild) impairments through profound loss. Similarly eliminating deafness is not a well defined concept. The auditory system is complex and hearing loss can be caused by damage to any part from ...


4

Most people describe ringing in ears as tinnitus. From a medical perspective, the definition of tinnitus is a real mess. It is typically described as a symptom and not a disease and diagnosis is often based on self report (although objective tinnitus is when a doctor can hear the sound). Things get messy though in that Heller and Bergman (1953) found that 93%...


4

If you have sensorineural hearing loss and regularly use headphones, you might be listening to a louder volume than if you did not have hearing loss. This may mean you could be subjecting your hearing apparatus to potentially damaging thresholds. Hearing aids are not just fancy headphones. They are sophisticated aural rehabilitation devices that are tuned ...


4

High quality custom ear plugs (e.g., http://www.etymotic.com/consumer/hearing-protection/erme.html although all custom plug are essentially the same materials) are essentially identical to the molds used in some hearing aids. Hearing aid users are encouraged to use their aids all day every day. Increased build up of ear wax can be a problem, but can easily ...


4

This is a very pragmatic question and I would like give you an explicit answer. Unfortunately I think that there is only so little objective information which hearing aid is the best. As said when the best aid is considered it is a very subjective matter. There is no clear comparative studies about different hearing aids, especially if those without ear ...


3

The answer to this is really not known. The field of audiology now talks about "hidden hearing loss". This is hearing loss than does not show up in clinical tests. Kujawa and Liberman (2009) found in animal models that sound exposure that has only a temporary affect on the ability of the animal to detect quick sounds, can do permanent damage. Le Prell et al....


3

Is tinnitus curable? No, there is no cure for tinnitus. It is connected to a malfunction in the neurons which turn the signals from the ear into the perception of hearing. The usual cause is that the inner ear is damaged, and nobody knows how to repair this organ. You have to accept the idea that it will almost certainly stay with you for the rest of your ...


2

While there is no single treatment to tinnitus as a variety of reasons can cause it some kinds of therapy might help ease symptoms. Tinnitus is a symptom and not a disease so it is helpful to pinpoint the underlying issue itself and then address it. My tinnitus started after I was on a anti-depressants course(Escitalopram Oxalate) and as soon as I found out ...


2

The short answer: I haven't come across anything that states that patients with a mild Meniere's episode should rest on principle even if they're feeling well enough to perform activities. So, I think it would be up to the patient's own judgement about what they are comfortable doing. The longer answer: Meniere's disease is a disease of the inner ear, and ...


2

You should not listen to music at 85 decibels for more than 8 hours. And if it's at 88 decibels limit your time to 4 hours. To judge this you have to use decibels: Livescience.com A person exposed to noise levels at 85 decibels or higher for a prolonged period of time is at risk for hearing loss You shouldn't listen to music , or be exposed to any ...


2

Interesting research offers a possible explanation as to why, even when exposed to the same external harmful noise stimulus, some individuals will develop tinnitus and other individuals will not. Extrapolating findings from research on animals may reveal why some people develop tinnitus while others do not. Animals were exposed to a noise stimulus with the ...


1

Assuming you do not only hear these sounds on windy days while outside, wWhat you are describing is most likely tinnitus and not simply the wind passing your ear. While tinnitus is common, it is generally a sign of an abnormality in the auditory system. In most cases you are the only one who can hear it, but in some cases the ear makes sounds. These ...


1

There are a number of issues wrapped up in this question. The first, which deteriorates faster treble or bass, is that Presbycusis, age related hearing loss, is a high frequency (i.e., treble) phenomenon. While hearing loss can occur due to damage of the tympanic membrane (i.e., ear drum), this is a conductive hearing loss that can be generally be well ...


1

The frequency response of a headphone is one of the biggest selling points with a wider and flatter response being "better". Ultrasound is typically defined as sounds above 20 kHz. The high end Sennheiser HD 800 S headphones have a flat frequency response out to 51 kHz. Even more reasonably priced headphones can still produce ultra sound (e.g., the ...


1

Using noise isolating headphones poses no additional risks beyond regular headphones. Using high quality headphones poses no additional risks beyond wearing hearing aids, and in fact the materials are often the same. The risk of prolonged listening is overall exposure. There are a who bunch of standards for calculating the overall noise exposure dose. This a ...


1

From what I can piece together, you are asking about the relationship between fluid build-up, eustachian tube or sinus dysfunction and other cranial conditions. The key thing to realize is that the eustachian tube connects the nasopharynx to the middle ear. Fluid build up is almost always a middle ear issue. Inner ear diseases are things like Meniere's ...


1

The first thing to do is you should go to see a doctor. Your primary care physician can look deep into your ear to see if there is anything lodged in it. It may be a build up of wax, or debris. If so, your doctor can clean it out. If there is nothing blocking your ear drum, and the feeling of blockage continues you should see a specialist. You could also ...


1

What you are describing sounds like a startle response. The startle response, along with the vestibular-occular reflex and acoustic reflex, and are often thought of as reflexes, despite not involving a reflex arc where a sensory neuron synapses with the spinal cord allowing for motor responses to occur without the signal reaching the brain. The startle ...


1

Yes avoid getting too much water inside your ears I would recommend against using ear buds they do more harm than any good. Stop poking inside your ear Regarding your existing condition please go see an ENT specialist


1

It's possible the speakers you're using to test are not able to output frequencies that high, even if they claim they should be able to. Aside from that, I'm pretty sure by age 30 your hearing ability for higher frequencies has declined some - check out this chart http://jslhr.pubs.asha.org/data/Journals/JSLHR/934609/m_JSLHR_58_5_1592fig1.jpeg. If you want ...


1

Bone Anchored Hearing Aids (BAHA) do not require having anything in the ear. Rather, they are placed behind the ear and work based on bone conduction. Commercially available BAHAs are both expensive and typically require surgery (outpatient procedure with local anesthesia), but they can be used without surgery. For example, at John Hopkins they let you test ...


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