Exam 1 Part 6

Question 1

When sound leaving the hearing aid differs from input signal

Answer 1

Total harmonic distortion

Question 2

Formulas that calculate desired gain and frequency response

Answer 2

Prescriptive procedures

Question 3

How do we test a hearing aid to verify it is fitting for a client?

Answer 3

Insert a silicone tube in order to get measurements to see if the hearing aid is working

Question 4

Gain prescribed for each frequency vs. actual output

Answer 4

Target gain

Question 5

Output of a hearing aid in response to speech spectrum stimuli

Answer 5

Speech mapping

Question 6

Used in specific listening situations such as church, workplace, noisy areas; assists with clarifying speech and listening to speech at distances

Answer 6

Assistive listening devices (ALD)

Question 7

What 3 types of noisy situations do ALD’s help with?

Answer 7

Ambient noise, reverberation, background noise

Question 8

Echo sound rooms takes on if sound waves are bouncing off of hard surfaces and interact with each other

Answer 8

Reverberation

Question 9

Radio waves used to transmit signals; can be used for hard-of-hearing and other attention impairments

Answer 9

FM systems

Question 10

Speech transmitted to the receiver

Answer 10

Personal FM system

Question 11

FM systems’ bandwidths are from ___ to ___ megahertz

Answer 11

72 to 216

Question 12

Base of the HA, contains receiver

Answer 12

FM Boot

Question 13

Hardwired from sound source to hearing aid

Answer 13

Direct audio input

Question 14

Sound from microphone to loudspeaker

Answer 14

Soundfield FM

Question 15

Transmits via infrared signal

Answer 15

Infrared system

Question 16

Room wired conducts electrical energy and transmits via t-coil, signal is directly sent to the patient’s HA and gets rid of background noise

Answer 16

Induction loop system