Anatomy, Setup/equipment of OAE Exam
Questions and Answers with Verified
Solutions | Latest Updated 2026
What are otoacoustic emissions Sounds coming from the ears, originating
(OAEs)? from the
cochlea and outer hair cells.
What is the historical background Discovered concepts date back to the
of 1700s; Dr.
otoacoustic emissions? David Kemp published a classic paper on
OAEs in
1978.
What is the function of the outer Involved in frequency analysis, amplifier
hair function,
cells? and the cochlear amplifier.
What is the function of the inner Detect sound and send signals to the
hair brain.
cells?
What does the probe do during Delivers stimuli into the ear canal and
otoacoustic emission testing? measures
emissions returning from the cochlea.
Why is a good probe seal Reduces the noise floor and improves
important recording
during testing? conditions.
, How does probe placement affect Pinna effects are eliminated by proper
pinna effects? probe
placement in the ear canal.
What are the acoustic properties Approximately 26 mm long with a 2.6 kHz
of resonance, altered by probe depth; varies
the external auditory canal? with
age.
How does the probe change the The canal becomes a tube closed at one
external auditory canal end by
acoustically? the probe and at the other by the tympanic
membrane.
Why can ear canal acoustics be Due to variations in size, curvature, and
unpredictable? probe
placement.
How do stimulus levels behave They vary across frequency.
before reaching the tympanic
membrane?
How does the middle ear affect Enhances forward propagation by
forward transmission of sound? impedance
matching, creating approximately 30 dB
gain.
How does the middle ear affect Creates a net loss of sound coming from
reverse transmission of OAEs? the
cochlea to the outer ear.
Questions and Answers with Verified
Solutions | Latest Updated 2026
What are otoacoustic emissions Sounds coming from the ears, originating
(OAEs)? from the
cochlea and outer hair cells.
What is the historical background Discovered concepts date back to the
of 1700s; Dr.
otoacoustic emissions? David Kemp published a classic paper on
OAEs in
1978.
What is the function of the outer Involved in frequency analysis, amplifier
hair function,
cells? and the cochlear amplifier.
What is the function of the inner Detect sound and send signals to the
hair brain.
cells?
What does the probe do during Delivers stimuli into the ear canal and
otoacoustic emission testing? measures
emissions returning from the cochlea.
Why is a good probe seal Reduces the noise floor and improves
important recording
during testing? conditions.
, How does probe placement affect Pinna effects are eliminated by proper
pinna effects? probe
placement in the ear canal.
What are the acoustic properties Approximately 26 mm long with a 2.6 kHz
of resonance, altered by probe depth; varies
the external auditory canal? with
age.
How does the probe change the The canal becomes a tube closed at one
external auditory canal end by
acoustically? the probe and at the other by the tympanic
membrane.
Why can ear canal acoustics be Due to variations in size, curvature, and
unpredictable? probe
placement.
How do stimulus levels behave They vary across frequency.
before reaching the tympanic
membrane?
How does the middle ear affect Enhances forward propagation by
forward transmission of sound? impedance
matching, creating approximately 30 dB
gain.
How does the middle ear affect Creates a net loss of sound coming from
reverse transmission of OAEs? the
cochlea to the outer ear.
