CSD 392: AUDIOLOGY: FINAL EXAM QUESTIONS WITH
COMPLETE SOLUTIONS
What does it mean when the tympanogram shows LARGE VOLUME and NO
PRESSURE PEAK? -- Answer ✔✔ there may be a perforated TM, PE tube in the TM, or
no TM at all
Auditory Brainstem Response (ABR) -- Answer ✔✔ measures functional integrity along
auditory path beyond cochlea
Otoacoustic Emissions (OAEs) -- Answer ✔✔ measures the echo of a sound sent to the
outer hair cells of the cochlea
Acoustic Stapedial Reflex -- Answer ✔✔ measures TM compliance and ME pressure
Immittance test -- Answer ✔✔ elicits a response to loud stimulus from two muscles in
the middle ear
If one wants to obtain information about estimates of hearing thresholds and behavioral
testing has been UNRELIABLE, you would use which type of testing? -- Answer ✔✔
ABR
5 components of a hearing aid -- Answer ✔✔ microphone, chip, amplifier, receiver,
battery
The microphone of a hearing aid -- Answer ✔✔ picks up sound and speech in the
environment
, The chip of a hearing aid -- Answer ✔✔ processes and analyzes the sounds
The amplifier of a hearing aid -- Answer ✔✔ receives information and intensifies sound
The receiver -- Answer ✔✔ receives info from the amplifier and sends info into the ear
The battery -- Answer ✔✔ provides power
Analog hearing aids came first which work by -- Answer ✔✔ generating electrical signal
analogous to sounds that came into the hearing aid
Digital hearing aids came after which work by -- Answer ✔✔ converting sound waves
into numerical info which is stored as binary digits
Four electroacoustic characteristics of hearing aids -- Answer ✔✔ distortion, frequency
response, maximum output sound pressure level, acoustic gain
Output sound pressure level is -- Answer ✔✔ the maximum output of a hearing aid
measured with the input of a 90dBSPL sound
Acoustic gain is -- Answer ✔✔ measured in dB with a probe microphone measuring the
sound pressure level at the eardrum
Frequency response is NOT -- Answer ✔✔ measured by asking the patient what
frequencies she can hear
Distortion in a hearing aid is -- Answer ✔✔ measured for frequency and amplitude,
worse in analog hearing aids, and makes quality worse
Amplifying each ear is called -- Answer ✔✔ binaural
Binaural improves the ability to _________ sounds -- Answer ✔✔ locate
Amplifying each ear improves -- Answer ✔✔ speech intelligibility
COMPLETE SOLUTIONS
What does it mean when the tympanogram shows LARGE VOLUME and NO
PRESSURE PEAK? -- Answer ✔✔ there may be a perforated TM, PE tube in the TM, or
no TM at all
Auditory Brainstem Response (ABR) -- Answer ✔✔ measures functional integrity along
auditory path beyond cochlea
Otoacoustic Emissions (OAEs) -- Answer ✔✔ measures the echo of a sound sent to the
outer hair cells of the cochlea
Acoustic Stapedial Reflex -- Answer ✔✔ measures TM compliance and ME pressure
Immittance test -- Answer ✔✔ elicits a response to loud stimulus from two muscles in
the middle ear
If one wants to obtain information about estimates of hearing thresholds and behavioral
testing has been UNRELIABLE, you would use which type of testing? -- Answer ✔✔
ABR
5 components of a hearing aid -- Answer ✔✔ microphone, chip, amplifier, receiver,
battery
The microphone of a hearing aid -- Answer ✔✔ picks up sound and speech in the
environment
, The chip of a hearing aid -- Answer ✔✔ processes and analyzes the sounds
The amplifier of a hearing aid -- Answer ✔✔ receives information and intensifies sound
The receiver -- Answer ✔✔ receives info from the amplifier and sends info into the ear
The battery -- Answer ✔✔ provides power
Analog hearing aids came first which work by -- Answer ✔✔ generating electrical signal
analogous to sounds that came into the hearing aid
Digital hearing aids came after which work by -- Answer ✔✔ converting sound waves
into numerical info which is stored as binary digits
Four electroacoustic characteristics of hearing aids -- Answer ✔✔ distortion, frequency
response, maximum output sound pressure level, acoustic gain
Output sound pressure level is -- Answer ✔✔ the maximum output of a hearing aid
measured with the input of a 90dBSPL sound
Acoustic gain is -- Answer ✔✔ measured in dB with a probe microphone measuring the
sound pressure level at the eardrum
Frequency response is NOT -- Answer ✔✔ measured by asking the patient what
frequencies she can hear
Distortion in a hearing aid is -- Answer ✔✔ measured for frequency and amplitude,
worse in analog hearing aids, and makes quality worse
Amplifying each ear is called -- Answer ✔✔ binaural
Binaural improves the ability to _________ sounds -- Answer ✔✔ locate
Amplifying each ear improves -- Answer ✔✔ speech intelligibility
