SPAUD 345 - Aural Rehab Ch. 2
questions and answers rated A+ updated
hearing aids - correct answer ✔✔Sophisticated, electronic, wearable, sound-filtered, amplifying
devices that are regulated by the FDA.
mild to moderately-severe hearing loss - correct answer ✔✔for these degrees of hearing loss
hearing aids help to make soft-level speech sounds and environmental sounds audible
■Keeps loud sounds at a comfortable level.
severe to profound hearing loss - correct answer ✔✔for these degrees of hearing loss hearing
aids help to ■ Make environmental sounds and prosodic cues audible
■ Stimulate the auditory nerve (CI VIII)
■Determine CI (cochlear implants) Eligibility.
communication needs assessment - correct answer ✔✔questions include: ○ What settings
create difficulty? Where is there restricted participation?
○ Coping strategies
○Preferred communication mode & attitude.
audiological assessment - correct answer ✔✔.involves ○ Case history, otoscopic exam, tests
(tymp., acu. reflex, ABR, pure-tone, speech-in-noise, OAEs, etc.)
○ Self reported client measures (client reports how they are perceiving sound)
○Additional tests may be needed w/ physician especially with children
miniaturization and enhanced signal processing - correct answer ✔✔2 modern hearing aid
design trends are
, power source, microphone, amplifier, and reciever - correct answer ✔✔4 main fundamental
components of hearing aids.
hearing aid microphone - correct answer ✔✔picks up acoustic signal from environment. The
microphone converts the acoustic signal to an electrical signal.
hearing aid amplifier - correct answer ✔✔this is where the electrical signal gets selectively
amplified based on patient/audiometric needs.
preamplifier stage - correct answer ✔✔Signal from microphone is boosted.
signal-processing stage - correct answer ✔✔Signal is manipulated to enhance the sound quality
for the patient.
output stage - correct answer ✔✔Signal further amplified based on patient need and sent to
the receiver.
peak-clipping - correct answer ✔✔limits loud noises from passing through, but may introduce
distortion (LINEAR).
compression - correct answer ✔✔is NONLINEAR, and far more common in today's hearing aids -
capitalizes on patient's dynamic range without introducing distortion.
analog - correct answer ✔✔Acoustic signal is amplified as a continuously varying amplitude
over time.
questions and answers rated A+ updated
hearing aids - correct answer ✔✔Sophisticated, electronic, wearable, sound-filtered, amplifying
devices that are regulated by the FDA.
mild to moderately-severe hearing loss - correct answer ✔✔for these degrees of hearing loss
hearing aids help to make soft-level speech sounds and environmental sounds audible
■Keeps loud sounds at a comfortable level.
severe to profound hearing loss - correct answer ✔✔for these degrees of hearing loss hearing
aids help to ■ Make environmental sounds and prosodic cues audible
■ Stimulate the auditory nerve (CI VIII)
■Determine CI (cochlear implants) Eligibility.
communication needs assessment - correct answer ✔✔questions include: ○ What settings
create difficulty? Where is there restricted participation?
○ Coping strategies
○Preferred communication mode & attitude.
audiological assessment - correct answer ✔✔.involves ○ Case history, otoscopic exam, tests
(tymp., acu. reflex, ABR, pure-tone, speech-in-noise, OAEs, etc.)
○ Self reported client measures (client reports how they are perceiving sound)
○Additional tests may be needed w/ physician especially with children
miniaturization and enhanced signal processing - correct answer ✔✔2 modern hearing aid
design trends are
, power source, microphone, amplifier, and reciever - correct answer ✔✔4 main fundamental
components of hearing aids.
hearing aid microphone - correct answer ✔✔picks up acoustic signal from environment. The
microphone converts the acoustic signal to an electrical signal.
hearing aid amplifier - correct answer ✔✔this is where the electrical signal gets selectively
amplified based on patient/audiometric needs.
preamplifier stage - correct answer ✔✔Signal from microphone is boosted.
signal-processing stage - correct answer ✔✔Signal is manipulated to enhance the sound quality
for the patient.
output stage - correct answer ✔✔Signal further amplified based on patient need and sent to
the receiver.
peak-clipping - correct answer ✔✔limits loud noises from passing through, but may introduce
distortion (LINEAR).
compression - correct answer ✔✔is NONLINEAR, and far more common in today's hearing aids -
capitalizes on patient's dynamic range without introducing distortion.
analog - correct answer ✔✔Acoustic signal is amplified as a continuously varying amplitude
over time.
