Masking

Question 1

Types of maskers

Answer 1

Broadband

Narrowband

Question 2

Sub types of broadband

Answer 2

white noise (wider masker) 
pink noise 
speech noise (specifically)

Question 3

A sub type of narrowband noise

Answer 3

pure tone

Question 4

Occlusion effect (BC) is most evident from …… to …… Hz

Answer 4

250 Hz to 1,000 Hz

Question 5

Occlusion effect value at 250 Hz

Answer 5

20 dB

Question 6

Occlusion effect value at 500 Hz

Answer 6

15 dB

Question 7

Occlusion effect value at 1,000 Hz

Answer 7

10 dB

Question 8

To identify Nonorganic HL

Answer 8

not responding to the stimuli (inconsistently) (repeat just half of spondee)

Poor SRT/PTA agreement

Flat audiogram

No shadow curve (contralateral cross over)

Question 9

Test battery of nonorganic HL

Answer 9

otoscope
tympanometry 
Acoustic reflex (ipsilateral) 
OAEs 
Behavioral tests

Question 10

When to mask (AC pure tones)

Answer 10

AC (te) - BC (nte) > or = 40

Question 11

Initial noise level for AC pure tones

Answer 11

AC (nte) + 10 dB

Question 12

Type of masker for AC pure tones

Answer 12

Narrowband

Question 13

When to mask BC pure tones

Answer 13

ABG (te) > 10

Question 14

Initial noise level for BC pure tones

Answer 14

AC (nte) + 10 dB + OE

Question 15

Type of masker for Bone pure tones

Answer 15

Narrowband

Question 16

When to mask (SRT)

Answer 16

SRT (te) - best BC (nte) > or = 40

Question 17

Initial noise level for SRT

Answer 17

SRT (nte) + 10 dB

Question 18

Type of masker for SRT

Answer 18

broadband

Question 19

When to mask (WRS)

Answer 19

PL (te) -best BC (nte) > or = 40

Question 20

Initial noise level for Word recognition

Answer 20

PL (te) - 20 dB