Audiometer
Audiometer
An Audiometer (/ɔːˈdiː.əˌmiː.tər/; from Latin audio "I hear" and Greek metron "measure") is a machine used for evaluating hearing acuity. They usually consist of an embedded hardware unit connected to a pair of headphones and a test subject feedback button, sometimes controlled by a standard Personal Computer. Such systems can also be used with bone vibrators, to test conductive hearing mechanisms.
History
The first Audiometers in the 1920s were referred to as 'Western Electric 2A Audiometer' used in conjunction with a set of headphones. The development of Audiometers was influenced by advances in audio technology and psychoacoustics, the study of the psychological and physiological responses associated with sound.
Types of Audiometers
There are several types of Audiometers:
- Clinical Audiometers: These are used in audiology clinics and Ear, Nose, and Throat (ENT) offices. They are typically stand-alone devices that interface with a computer to perform a variety of tests.
- Diagnostic Audiometers: These are used to diagnose the type and degree of hearing loss. They can perform a variety of tests including air conduction, bone conduction, and speech audiometry.
- Screening Audiometers: These are used in schools, health fairs, and industries for mass screenings. They typically only perform air conduction tests.
- Portable Audiometers: These are used for on-site testing in industries and schools. They are typically battery-operated and can perform air and bone conduction tests.
See Also
References
External links
- Medical encyclopedia article on Audiometer
- Wikipedia's article - Audiometer
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