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CD 444 Exam 2: Questions & Accurate Answers (100%)
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CD 444 Exam 2: Questions & Accurate Answers (100%)
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CD 444 Exam 2: Questions & Accurate Answers (100%)Infants identified with hearing loss can be fit with amplification as young as
_____. Right Ans - 4 weeks
Hearing aids _____ frequencies where hearing loss occurs. Right Ans -
amplify
Hearing aids can manage sound according to the _____. Right Ans - listening
environment
Hearing aid gain is... Right Ans - the amount by which a signal is amplified
Frequency response is... Right Ans - the frequency region amplified by the
hearing aid
Hearing aid amplifies only where.... Right Ans - the hearing loss occurs
Amount of gain generated by hearing aids ____ across frequencies. Right
Ans - varies
Target gain for soft, average, and loud sounds is.... Right Ans - different
Target gain is ..... based on the patient's audiogram. Right Ans - prescriptive
SNHL is characterized by... Right Ans - loss of loudness, loss of clarity,
reduced tolerance for loud sounds, and sometimes tinnitus
Recruitment is... Right Ans - -an abnormally rapid growth in loudness
-sounds are perceived as louder than by a normal listener, can be
uncomfortable
Intensity is... Right Ans - the power of a sound wave
Loudness is... Right Ans - -psychological correlate
-person's perception of loudness
People with SNHL often have ..... loudness tolerance. Right Ans - reduced
, Dynamic range of hearing Right Ans - range of hearing between threshold
and loudness discomfort level
Maximum Power Output Right Ans - -maximum level of amplification from
hearing aid
-should never exceed patient's sound tolerance level
Microphones purpose Right Ans - capture and focus on a speech signal as
opposed to background noise
Quality digital hearing aids have ____ and ____ facing microphones. Right Ans
- front and rear
Hearing aid microphones constantly ______ to shift the focus Right Ans -
scan the environment
Tinnitus Right Ans - -unwanted ear noises such as ringing, buzzing,
chirping, etc.
-improves with hearing aid use
Hearing aid components Right Ans - Input-->Microphone-->Amplifier--
>Receiver-->Output
Input signal is... Right Ans - picked up by the microphone which converts it.
from acoustic to digital signal
Signal is... Right Ans - amplified, modified, managed
Receiver then.... Right Ans - converts signal back to acoustic energy
Output signal finally is... Right Ans - delivered into the ear canal
Analog Right Ans - traditional transistorized electronic circuits; rarely used
Digital Right Ans - microchip based technology
-processing is much more sophisticated
-can be used with remotes and phones
-can save settings for different environments
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