ABA Amplification & Aural Rehabilitation 2

Question 1

Which hearing aid feature uses multiple microphones to emphasize sounds arriving from the front while attenuating sounds from the sides and rear?

Accepted Answer

Directional microphone processing

Answer

Directional microphone processing uses two or more microphones to create a polar pattern that enhances the signal-to-noise ratio for sounds originating in front of the listener.

Question 2

In aural rehabilitation, the term 'auditory closure' refers to:

Accepted Answer

The ability to recognize a complete message despite missing acoustic cues

Answer

Auditory closure is the perceptual ability to complete or recognize speech even when portions of the signal are degraded, distorted, or absent.

Question 3

A patient reports that their hearing aids whistle when they cup their hand near their ear. The MOST likely cause is:

Accepted Answer

Acoustic feedback due to re-amplification of the output signal

Answer

Acoustic feedback occurs when amplified sound leaks from the receiver back to the microphone and is re-amplified, producing a high-pitched whistle or squeal.

Question 4

The Hearing Handicap Inventory for the Elderly (HHIE) primarily measures:

Accepted Answer

The self-perceived emotional and social effects of hearing loss

Answer

The HHIE is a 25-item self-report questionnaire assessing the emotional and social/situational consequences an individual perceives from their hearing impairment.

Question 5

Which compression parameter determines how quickly a hearing aid's gain increases after a loud input signal drops below the compression threshold?

Accepted Answer

Release time

Answer

Release time (also called recovery time) is the time required for the hearing aid to return to full gain after the input signal drops below the compression threshold.

(ABA) American Board of Audiology Practice Test

(ABA) American Board of Audiology Practice Test

ABA Amplification & Aural Rehabilitation 2