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The Main Features Of Audiometers

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By Alyssa Riggs


The structures that are used when evaluating hearing loss in an individual are called audiometers. These machines are typically found at ear, nose or throat office, or audiology centers. Typically embedded hardware is present and connected to headphones. There is also a test button that is controlled through a personal computer.

In some cases, the structures are used along with bone vibrators to check the conductive hearing units. There are meters, software and hardware, available in numerous models. Meters can connect to basic computers and be used at home to test the hearing. However, the results from at-home tests are not considered as reliable and accurate with the models because there is no standard for calibration.

The computer-based models are those that provide the most accurate and efficient results. Said structures are also more expensive than the traditional software devices. Typically these are used at research facilities, hospitals, audiology centers and other similar places that require accurate results.

Audiometers employed on a regular basis for testing should be properly calibrated. This is important to ensure display levels are the same as the stimulus a subject is receiving. The right calibration is essential to getting results that are consistent, no matter where the test is taken. Likewise, the correct measurements are the best way to measure and characterize the type of loss. Most calibration is done through an ACS or Audiometric Calibration Systems, or ESS or Ear Simulator System.

Audiometry is the term that is derived from two Latin words, one meaning measure and the other to hear. This word is defined as the ability to hear. This field is primarily focused on the ability to hear at specific levels, but there is science related to the ability an individual has to distinguish between various intensities, pitches and sounds. Machines can also be applied to measure Otoacoustic emissions and acoustic reflex. The results taken from these tests are utilized by doctors for diagnostic reasons.

There are numerous retailers that deal in the sale of meters. The prices for the machines will differ depending on the type. The models that provide more accurate and precise results tend to have a higher price tag and are therefore used mostly in professional settings. There are also many models made for at-home use as well.

Many different things can contribute to the loss of hearing. Sometimes this is partial and other time it is total. The main issue is a low sensitivity to sounds normally heard. The loss is quantified based on the level at which the sound must be increased before the test subject can hear it.

Audiometers are structures that are used in the field known as audiometry. The machines, which come in various models, are applied to measure the kind and quantity of hearing loss. The models that are complex usually bring the best results are employed at professional places. Devices used for at home are available from several different stores. These do not usually produce the best accuracy in terms of results. Calibration is important for these devices and impacts the final results. Hearing loss can be the result of many different things and may be temporary or permanent, partial or total.




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