noise audiometer

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• 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

• 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

• Hearing impairment — See also: Deaf culture for the social movement.. Deaf and/or hard of hearing Classification and external resources The International Symbol for Deafness …   Wikipedia

• Archibald Low — Professor Archibald Montgomery Low (1888 September 1956) was an English Astronautics engineer, research physicist and inventor, and author of more than 40 books.Low has been called the father of radio guidance systems due to his pioneering work… …   Wikipedia

• ear disease — ▪ human Introduction       any of the diseases or disorders that affect the human ear and hearing.       Impaired hearing (deafness) is, with rare exception, the result of disease or abnormality of the outer, middle, or inner ear. Serious… …   Universalium

• level — 1. Any rank, position, or status in a graded scale of values. 2. A test for determining such rank or position. acoustic reference l. the biological reference l. for sound measurements. When the term decibel is used to …   Medical dictionary

• acoustics — (Roget s 3 Superthesaurus) n. sound qualities, echoes, noise properties, sound transmission, sound frequencies. WORD FIND • absorbs all sound, produces no echoes: anechoic • boom produced by object moving faster than sound: sonic boom •… …   English dictionary for students

• 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

• Assistive technology — (AT) is a generic term that includes assistive, adaptive, and rehabilitative devices for people with disabilities and includes the process used in selecting, locating, and using them. AT promotes greater independence by enabling people to perform …   Wikipedia

• 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