Types And Functions Of An Audiometer

Written By Unknown on mardi 25 juin 2013 | 17:00

By Alyssa McCall


The hearing loss of an individual could be determined by an audiometer. The problem of hearing loss could only be solved if the individual's hearing loss has been determined. Hearing devices have a hardware that is usually put together with a headphone and they fall under the control of a standard PC. We have two types of devices, software devices and hardware devices.

An example of the software AM is the Screening PC Based AM that only uses a standard computer. This can be owned and run by anyone in their homes to check their hearing. Their accuracy however is not very good because they lack a standard for calibration. Some of these screening PC based devices can be found on a hand held device that is windows driven.

The Clinical PC Based hearing loss measurement instrument is also an example and is sufficiently expensive compared to the Screening PC Based hearing failure recording device, which clearly is a software hearing device. The portray themselves as sufficiently accurate and efficient as compared to the software devices. They are useful to the professionals in hospitals, audiometric centres and also research centres. Hardware devices are less accurate than this type of devices.

There rare different types of hearing devices with different modifications in the market. The clinical Astera one is an example and it is PC based. The PC based Auricle one is another example. It uses batteries I its operation and has proved to be extra accurate. We also have the Midimate audiometers that are stand alone in other words they are not PC based. The audiometric process uses air, bone and speech.

The other one is the Itera II devices. They are hybrid which means that they are bot PC based and stand alone. The whole diagnostic process is done by these machines. Using it in the test session is very simple. The Xeta devices are a different type that have easy portability and are hybrid too. They are referred to as fast, flexible and efficient. Micro mate device is another type that is hybrid and simple for then test to be done and helps the patient to keep in contact.

It is important that the calibration of an instrument be done regularly so as to confirm that the level show on the display is the same as the real stimulus exposed to the subject. Countries such as the US check calibration of audiometers acoustically . This is done in line with the conditions set by the American Standards Specification for Audiometers.

If one intends to get their hearing loss, then they have to ensure that accuracy of their calibration is very high so as to get efficient results. If there are complications associated with the calibrations, it is an implication that in case of any treatment, then it will be wrong because of the wrong calibration.

It is thus clear that an audiometer is a clinical instrument but individuals could own them if they are cautious about their hearing loss. There are different audiometers as are listed above. Their calibration is an essential instrument for their performance.




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