IHS Aid Technology 2

Question 1

Which hearing aid feature uses a microphone array to improve speech understanding in noisy environments?

Accepted Answer

Directional microphone technology

Answer

Directional microphone technology uses two or more microphones to focus on sounds coming from in front of the listener while reducing noise from other directions.

Question 2

What does the term 'open fit' refer to in hearing aid technology?

Accepted Answer

A fitting style where the ear canal is not fully occluded

Answer

Open fit hearing aids use a thin tube or receiver wire with a small dome that leaves the ear canal largely unoccluded, reducing the occlusion effect.

Question 3

A receiver-in-canal (RIC) hearing aid differs from a traditional BTE primarily in that:

Accepted Answer

The receiver is placed in the ear canal rather than in the housing

Answer

In RIC aids, the receiver (speaker) is moved from the BTE housing into the ear canal, connected by a thin electrical wire, reducing size and improving sound quality.

Question 4

Which wireless standard is most commonly used for direct audio streaming between modern hearing aids and smartphones?

Accepted Answer

Bluetooth Low Energy (BLE)

Answer

Bluetooth Low Energy (BLE) is used in modern Made for iPhone and ASHA (Audio Streaming for Hearing Aids) platforms for direct, low-power audio streaming.

Question 5

What is the primary purpose of a hearing aid vent?

Accepted Answer

To allow low-frequency sound to escape and reduce the occlusion effect

Answer

Vents allow low-frequency sound energy and the patient's own voice to escape the ear canal, reducing the plugged or hollow sensation known as the occlusion effect.

IHS - International Hearing Society Practice Test

IHS - International Hearing Society Practice Test

IHS Aid Technology 2