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29 Cards in this Set
- Front
- Back
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acoustics
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study of sound as a physical event. a branch of physics.
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psychoacoustics
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study of the psychological experiences of sound
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sound
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in reference to human hearing, an audible disturbance of a medium produced by a source.
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pure tone
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a tone of single frequency
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pure tone
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a single tone of frequency
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frequency
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the number of times a cycle of vibration repeats itself within a second
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Hertz
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cycle of vibration
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cycle
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one compression and one rarefaction within one second
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cochlea
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part of the inner ear concerned w/ hearing.
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auditory nerve
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supplies hair cells in the cochlea and carries electrical sound impulses from the cochlea to the brain
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SPL
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intensity of sound= decibels at a certain sound pressure level
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HL
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hearing level= lowest intensity of a sound needed to stimulate the auditory system
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decibel
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a basic unit used to measure the intensity of sound
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air conduction
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sound travels through the medium of air
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bone conduction
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sound transmitted by the vibrating bones of the skull
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hard of hearing (HOH)
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hearing loss of 16dB to 75dB. can communicate orally.
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deaf
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hearing loss that exceeds 75dB, do not usually acquire oral speech
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audiology
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the study of hearing, its disorders, and the measurement and management of those disorders.
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hearing threshold
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intensity level at which a tone is faintly heard at least 50% of the time it is present.
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otitus media
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inner ear infection. common cause of conductive hearing loss.
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otosclerosis
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disease of the bones in the middle ear, especially the stapes
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audiometer
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electronic instrument that generates and amplifies pure tones to test hearing
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spondee
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two syllable words such as baseball or birthday.
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tympanometry
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measure of immittance with an impedence bridge.
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impedence
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resistance of the eardrum to sound energy
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immittence
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refers to a transfer of acoustic energy
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audiogram
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records the results of air (both ears) and bone conduction
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hearing aid
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analog hearing aid: create patterns of electric voltage that correspond to the sound input.
digital hearing aid: use computer technology and can be programmed to suit the person's pattern of hearing loss |
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cochlear implants
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electronic devices that are surgically placed in the cochlea and other parts of the ear. deliver electrical impulses, converted from sound, directly to the auditory nerve in the cochlea. candidates are deaf persons.
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