Hearing Instrument Specialist Study Guide Exam | Verified Exam
Questions and Answers | Latest Updated Study Material 2026
Question:
Hearing Instrument Specialist Study Guide
Fundamental Frequency
Answer:
the lowest frequency that goes to make
up most complex sounds, usually the loudest and said to be predominate.
Question:
Tympanic Cavity
Answer:
Contains 3 tiny bones, (malleus, incus and
stapes) and 2 muscles, stapedius and tensor tympani.
Question:
Fourier Spectral Analysis
Answer:
A technique of any complex sound
being broken down into individual frequencies.
Question:
it causes an increase in sound pressure
Answer:
The middle ear is a
transformer because:
Question:
Epithelial Migration
Answer:
The self cleaning process of the ear canal.
, Question:
Epitympanic Cavity
Answer:
a space in the middle ear which allows a
protected passage for nerves.
Question:
Interaural Attenuation
Answer:
The decrease in signal intensity as the
sound travels intracranially thru bone conduction from one cochlea to the other.
Question:
Rule for Masking Air Conduction with Supra-aural and Circumaural Earphones:
Answer:
Deliver NBN masking to the NTE when there is a 40dB+ difference between
the measured AC threshold of the TE and the measured BC threshold of the NTE.
Question:
Rule for masking Air Conduction with Insert Earphones:
Answer:
Deliver
NBN masking to the NTE when there is a 70dB+ difference between the measured AC threshold
of the TE and the measured BC of the NTE.
Question:
Rule for masking Bone Conduction:
Answer:
Deliver NBN to the NTE
when there's a 15dB difference in AC and BC thresholds.
Question:
The Plateau Method
Answer:
Inital Amount of Masking in NTE: AC
(NTE) + 10dB
Questions and Answers | Latest Updated Study Material 2026
Question:
Hearing Instrument Specialist Study Guide
Fundamental Frequency
Answer:
the lowest frequency that goes to make
up most complex sounds, usually the loudest and said to be predominate.
Question:
Tympanic Cavity
Answer:
Contains 3 tiny bones, (malleus, incus and
stapes) and 2 muscles, stapedius and tensor tympani.
Question:
Fourier Spectral Analysis
Answer:
A technique of any complex sound
being broken down into individual frequencies.
Question:
it causes an increase in sound pressure
Answer:
The middle ear is a
transformer because:
Question:
Epithelial Migration
Answer:
The self cleaning process of the ear canal.
, Question:
Epitympanic Cavity
Answer:
a space in the middle ear which allows a
protected passage for nerves.
Question:
Interaural Attenuation
Answer:
The decrease in signal intensity as the
sound travels intracranially thru bone conduction from one cochlea to the other.
Question:
Rule for Masking Air Conduction with Supra-aural and Circumaural Earphones:
Answer:
Deliver NBN masking to the NTE when there is a 40dB+ difference between
the measured AC threshold of the TE and the measured BC threshold of the NTE.
Question:
Rule for masking Air Conduction with Insert Earphones:
Answer:
Deliver
NBN masking to the NTE when there is a 70dB+ difference between the measured AC threshold
of the TE and the measured BC of the NTE.
Question:
Rule for masking Bone Conduction:
Answer:
Deliver NBN to the NTE
when there's a 15dB difference in AC and BC thresholds.
Question:
The Plateau Method
Answer:
Inital Amount of Masking in NTE: AC
(NTE) + 10dB
