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29 Cards in this Set

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