Exam 1 Part 5 Flashcards Preview

CSD 404 (Audiologic Rehabilitation) > Exam 1 Part 5 > Flashcards

Flashcards in Exam 1 Part 5 Deck (20)
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1
Q

Point of intensity to activate compression; signal amplified to a lesser degree

A

Knee point

2
Q

Ratio between input sound pressure level (SPL) change and output SPL change

A

Compression level

3
Q

Part of a hearing aid where it converts electric signal back to acoustic energy; considered a small loudspeaker and deliverer of the speech signal

A

Receiver

4
Q

Anchors the hearing aid, deliver sound from receiver to ear canal

A

Ear molds

5
Q

Picks up telephone signal

A

t-coil,/telecoil

6
Q

Adjusts amplification level

A

Volume control

7
Q

Program and switch channels

A

Remote control

8
Q

Box worn on torso or around neck, powerful and has larger controls

A

Body aid

9
Q

Bypasses outer and middle ear, delivers sound via vibration through the mastoid

A

Bone conduction aid

10
Q

Flexible style of hearing aid that is typically used for children, can be used with assistive listening devices, less feedback, easy to clean, fewer repaired, used for mild to profound hearing loss

A

Behind the ear

11
Q

Hearing aid style with thin tubing that the receiver rests in the canal, less occlusion effect, used for mild to severe hearing loss and high frequency hearing loss

A

Receiver in canal

12
Q

Hearing aid style with enhanced amplification on high frequencies, receiver placement allows need for gain, mild to severe hearing loss

A

In-the-ear

13
Q

Style of hearing aid that fills less of concha than in the ear, enhanced amplification of high frequencies, receiver replacement allows less need for gain, mild to moderately severe hearing loss

A

In the canal

14
Q

Style of hearing aid that is cosmetically appealing and easy to insert/remove, reduction of occlusion effect and feedback, sound localization improvement, elimination of wind noise, greater high frequency gain and enhanced telephone use, mild to moderate hearing loss

A

Completely in canal

15
Q

Surgically implanted in mastoid, external processor attached with magnet or button, uses bone conduction that bypasses outer and middle ear, used for conductive or mixed hearing loss, atresia, stenosis, microtia, anotia, chronic infection, single sided deafness (SSD)

A

Bone anchored hearing aid/listening device

16
Q

Why do we use binaural amplification?

A

Eliminates head shadow effect, natural amplification from both ears (loudness summation), better listening in noise,

17
Q

Maximum sound pressure level to ear

A

Output sound pressure level (OSPL)

18
Q

What is the input signal for output sound pressure level (OSPL)

A

90 dB SPL

19
Q

OSPL should not reach user’s…

A

Loudness discomfort level (LDL)

20
Q

Range of frequencies that can be amplified, difference between output and input signal amplitude across frequencies

A

Gain/frequency response