Search results
Results from the WOW.Com Content Network
Audiometry (from Latin audīre 'to hear' and metria 'to measure') is a branch of audiology and the science of measuring hearing acuity for variations in sound intensity and pitch and for tonal purity, involving thresholds and differing frequencies. [1]
Pure-tone audiometry provides ear specific thresholds, and uses frequency specific pure tones to give place specific responses, so that the configuration of a hearing loss can be identified. As pure-tone audiometry uses both air and bone conduction audiometry, the type of loss can also be identified via the air-bone gap.
Portable audiometer Maico, circa 1960s. An audiometer typically transmits recorded sounds such as pure tones or speech to the headphones of the test subject at varying frequencies and intensities, and records the subject's responses to produce an audiogram of threshold sensitivity, or speech understanding profile.
An audiologist conducting an audiometric hearing test in a sound-proof testing booth Identification of a hearing loss is usually conducted by a general practitioner medical doctor , otolaryngologist , certified and licensed audiologist , school or industrial audiometrist , or other audiometric technician.
The results are represented by an audiogram, and are usually interpreted by an audiologist, or a registered Medical Officer, [4] unless the audiometrist is also an audiologist, with the aim of diagnosing hearing loss. There are currently some misconceptions regarding the definition of Audiometrist and Audiologist, which vary from country to ...
A tone at the frequency of 4000 Hz is presented for 60 seconds at an intensity of 5 decibels above the patient's absolute threshold of hearing. If the patient stops hearing the tone before 60 seconds, the intensity level is increased by another 5 decibels with the procedure repeated until the tone can be heard for the full 60 seconds or until no decibel level can be found where the tone can be ...
Auditory science or hearing science is a field of research and education concerning the perception of sounds by humans, animals, or machines. It is a heavily interdisciplinary field at the crossroad between acoustics , neuroscience , and psychology . [ 1 ]
The main disadvantage lies in the large number of trials needed to obtain the data, and therefore time required to complete the test. [4] Method of adjustment Method of adjustment shares some features with the method of limits, but differs in others. There are descending and ascending runs and the listener knows that the stimulus is always present.