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Aural Rehab - EXAM 1 > Amplification - Introduction, Purpose, Features > Flashcards

Amplification - Introduction, Purpose, Features Flashcards

1
Q

Why do SLPs need to be familiar with HAs?

A

Will routinely encounter individuals with HL (children in schools, older adults)

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2
Q

What are 3 things an SLP should be able to do related to HAs/HL

A

1) answer questions about HAs
2) do basic troubleshooting
3) recognize when a referral to an AUD is needed

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3
Q

Why are SLPs in the best position to spot a problem with HAs?

A

They see patients more often/ongoing, can notice problems easier/more

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4
Q

SLPs (along with parents, teachers, and other clinicians) may called upon to provide input about what with a child’s hearing aids?

A

Their daily performance with hearing aids

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5
Q

The selection and fitting of HAs is _______ to AR programs for ____ patients that are ____ of ________ individuals

A

Central
Most
Hard of hearing

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6
Q

What are the two critical parts of getting a clients HAs?

A

1) selecting the correct HA

2) fitting it properly

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7
Q

What are the 2 goals of amplification?

A

1) audibility

2) comfort

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8
Q

What does the fitting of an HA include?

A

Physical fit as well the the tech settings/configuration

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9
Q

The purpose of a hearing aid for individuals with useable residual hearing is to improve ______ _________

A

Speech intelligibility

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10
Q

How are the goals of HAs accomplished?

A

Making as much of the speech signal audible as possible without making it uncomfortably loud

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11
Q

What are two complaints of older hearing aids that can be fixed now?

A

1) difficulty understanding speech in noise

2) discomfort from loud sounds

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12
Q

HAs have had many advances but, they cannot bring back ________ __________ or _______ _________ to normal

A

Hearing sensitivity

Speech understanding

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13
Q

What is one of the main reason that HAs have limitations?

A

Size, it is hard to get exceptional sound quality in a device that fits in an ear

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14
Q

Why is size a constraint for HAs?

A

Power constraints for battery size

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15
Q

The ____ exists to deliver great sound, we just cant make it ____ enough

A

Tech

Small

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16
Q

What are two recent improvements of HAs?

A

1) smaller batteries

2) directionality information

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17
Q

What is the main limitation to HAs/amp?

A

The impaired auditory system of the hearing aid user

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18
Q

What 2 limitations does the HA users impaired auditory system present?

A

1) reduced dynamic ranges

2) impaired frequency, intensity, and temporal resolving capabilities

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19
Q

It is important to give the hearing aid user _________ __________ concerning their hearing aid

A

Realistic expectations

20
Q

How is need for an HA determined?

A

Standard audiologic assessments play a large role, but we also need to use a holistic view

21
Q

Two people with the same testing profiles can have different ____ and therefore different ______ _________ approaches/needs

A

Lives

Aural Rehab

22
Q

What is the point where a HA is of little to now help?

A

Maybe profound hearing loss, but often HAs can help almost any HL

23
Q

Even those with profound HL may receive what 2 types of auditory info from HAs?

A

1) detection of environmental sounds

2) cues that assist with speechreading

24
Q

Most people who don’t receive speech intelligibility from HAs are likely _________ ________ ____________

A

Cochlear I pan the canidates

25
Q

Even if a severe to profoundly deaf person chooses not to use hearing aids they may use other __________ ______ (2 ex)

A

Assistive devices

1) vibrating alarm clock
2) light alarm door bell

26
Q

What are 6 things to consider for HA candidacy?

A

1) audiologic factors
2) life style
3) cultural considerations
4) physical status
5) cognitive status
6) motivation and attitude

27
Q

What are the 5 basic components of hearing aids?

A

1) microphone
2) transducer
3) amplifier
4) receiver
5) battery

28
Q

Prior to the mid _______ HAs used analog tech or digitally controlled analog tech

A

1990s

29
Q

After the mid 1990s fully ________ HAs were introduced

A

Digital

30
Q

Why is digital HA tech better than analog?

A

Allows for a better/clearer signal

31
Q

How do analog tech HAs work?

A

The signals that pass through the HA are continuous electrical waveforms analogous in shape to the incoming acoustic waveform

32
Q

What is digital tech called and how does it work?

A

Digital signal processing technology

The continuous electrical waveform generated by the HA is changed by a converter to binary digits

33
Q

Digital coding of the signal in digital HAs allows what?

A

Advanced signal processing that isn’t possible in analog tech

34
Q

All modern HAs deliver good outcomes BUT…

A

There are basic and advanced features and the added ones have more benefits

35
Q

What are 5 basic digital HA technologies?

A

1) multiple memories/programs
2) multiple channels
3) compression
4) basic feedback control
5) custom programming by the AUD

36
Q

What is multiple memories/programs in an HA?

A

Differential amp for different listening environments or for fluctuating HL

37
Q

What do multiple channels in an HL do?

A

Better process different frequency bands separately to better match the clients HL

38
Q

What are basic vs. advanced HA channels?

A 
Basic = high, mid, low
Advanced = more than basic
39
Q

What is compression?

A

The ability of an HA to to vary the gain applied based on the level coming in

40
Q

What is basic feedback control?

A

The ability of an HA to reduce feedback

41
Q

What is feedback caused by?

A

Previously amplified sound being pushed back into the mic and getting amplified again

42
Q

How do basic vs. advanced devices do feedback control?

A

Basic: decreases level of amp
Advanced: cancels out the feedback sound waves

43
Q

Compression in HAs means manual ______ control is needed as much anymore

A

Volume

44
Q

What are 3 possible features of advanced HAs?

A

1) automatic and adaptive digital noise reduction algorithms
2) adaptive directional mics with signal processing algorithms
3) advanced feedback control

45
Q

What is the con of advanced digital technology?

A

It’s significantly more expensive than basic tech, 2-3 times more

46
Q

What does research say about advanced/expensive and basic/cheaper HAs?

A

There is not much research, but what we have shows that mid range is “worth it” but high is not

Aural Rehab - EXAM 1 (14 decks)

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