Masking
The energy lost as sound travels trans-cranially from one ear to the other.
Interaural Attenuation
Masking is needed in air conduction when there is a _____________ dB or more difference between the air conduction threshold of the TEST EAR and the bone conduction threshold of the SAME EAR.
15 dB
This form of acoustic immitance or impedance testing evaluates the compliance of the tympanic membrane.
Static / Acoustic compliance
Compliance is comprised of 2 automatic measure that can tell the equivalent volume of the ___________ ear and the ___________ _____________ .
External; tympanic membrane
Why do we not appreciate the sound of our voice when we hear it through a recording?
Because we are used to hearing it through bone conduction not air conduction.
The most efficient kind of masking noise for pure-tone testing is _____________ .
Narrow-band noise
Interaural attenuation for Bone Conduction is theoretically ______________ dB.
0 dB
The tympanometer measures the response of the tympanic membrane and is represented by a peak that shows equal ___________ on either side of the tympanic membrane.
Peak
When air pressure is EQUAL on both sides of the tympanic membrane, this creates the least stiff and the most ______________ .
compliance
Name the ossicular chain in the order from outer ear to inner ear.
Malleus, incus, stapes
Contralateral can be defined as _____________ side of the body.
Opposite
The reason for masking is to rule out the influence from the ____________ in the evaluation of hearing.
NTE - non-test ear
An involuntary mucles contraction involving the movement of the malleus, incus, and stapes along with the tympanic membrane is known as the ___________ ____________.
Acoustic reflex
When the tympanic membrane is the most compliant, it means that sound will be less ______________ .
impeded
Acoustic reflex is important for diagnosing many hearing issues including _____ .
Conductive hearing loss, Cochlear hearing loss, nerve damage, brainstem lesions
The interaural attenuation value for supra-aural headphones is _____________ dB.
40 dB
When sound is presented through bone conduction on the RIGHT mastoid, which cochlea receive the stimulus?
Right and left
Malleus, incus, and stapes
In a Type B tympanogram, a flat line with no identifiable peak represents normal ear canal volume, but involvement on ___________ in the middle ear.
fluid
When does an audiologist perform the acoustic evaluation in a full audiological evaluation?
Prior to the pure-tone or speech reception assessments
The Interaural Attenuation value for inserts is about _____________ dB or more difference between the air conduction threshold of the test ear and the bone conduction threshold of the non-test ear.
70 dB
When the narrow-band noise presented for masking is more than allows for determining the true threshold it is known as ___________________ .
Over-masking
This muscle is responsible for the protection of the inner ear against hearing damage by noise and moving the stapes and adjusting the perilymph fluid accessed through the oval window.
stapedius
In a Type B-High tympanogram where there is no identifiable peak and the compliance is high, this suggests an ___________ in the tympanic membrane.
opening / perforation / PET
Medical/Social history, Otoscopic eval, Tympanometry and Acoustic reflex/compliance; pure-tone testing