tone audiometer
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audiometer — An electronic device used in measuring the threshold of hearing for pure tones of frequencies generally varying from 125–8000 Hz and speech (recorded in terms of decibels). [audio + G. metron, measure] automatic a. SYN: Békésy a.. Békésy a. an… … Medical dictionary
tone decay test — (for hearing) with an audiometer, the patient is asked to raise one hand as long as they hear a continuous tone at threshold level and to lower it when the tone becomes inaudible; whenever the patient lowers their hand before 60 seconds, the… … Medical dictionary
ear, human — ▪ anatomy Introduction organ of hearing and equilibrium that detects and analyzes noises by transduction (or the conversion of sound waves into electrochemical impulses) and maintains the sense of balance (equilibrium). The human ear, like … Universalium
Hearing test — A hearing test is an evaluation of the sensitivity of a person s sense of hearing, most often performed by an audiologist using an audiometer. Audiologists are the only health professionals with extensive training on the anatomy and physiology of … Wikipedia
Audiogram — An audiogram is a standard way of representing a person s hearing loss [http://www.phonak.co.uk/ccuk/consumer/hearing/audiogram.htm] . Most audiograms cover the limited range 100Hz to 8000Hz (8kHz) which is most important for clear understanding… … Wikipedia
Minimum audibility curve — is a standardised graph of the threshold of hearing versus frequency for an average human, and is used as the reference level when measuring hearing loss with an audiometer as shown on an audiogram. Audiograms are produced using a piece of test… … Wikipedia
Hearing range — for more detail on human hearing see Audiogram,Equal loudness contours and Hearing impairment. Hearing range usually describes the range of frequencies that can be heard by an animal or human, though it can also refer to the range of levels. In… … Wikipedia
Alexander G. Bell — Alexander Graham Bell (* 3. März 1847 in Edinburgh, Schottland; † 1. August 1922 in Baddeck, Nova Scotia, Kanada), war ein britischer Sprechtherapeut, Erfinder und Großunternehmer. Er gilt als der erste Mensch, der aus der Erfindung des Telefons… … Deutsch Wikipedia
Graham Bell — Alexander Graham Bell (* 3. März 1847 in Edinburgh, Schottland; † 1. August 1922 in Baddeck, Nova Scotia, Kanada), war ein britischer Sprechtherapeut, Erfinder und Großunternehmer. Er gilt als der erste Mensch, der aus der Erfindung des Telefons… … Deutsch Wikipedia
audiogram — The graphic record drawn from the results of hearing tests with an audiometer, which charts the threshold of hearing at various frequencies against sound intensity in decibels. [audio + G. gramma, a drawing] pure tone a. a chart of the … Medical dictionary
Audiometry — is the testing of hearing ability. Typically, audiometric tests determine a subject s hearing levels with the help of an audiometer, but may also measure ability to discriminate between different sound intensities, recognize pitch, or distinguish … Wikipedia
