masking

Question 1

Test ear

Answer 1

what ear we want results from

Question 2

non test ear

Answer 2

don’t want info or a response from this ear

Question 3

masking noise

Answer 3

adding noise to the non test ear because we want to distract that ear so we can test Test Ear

Question 4

in what ways can masking be done

Answer 4

beeps pure tone freq- put narrow band noise in non test ear

speech audiometry- put speech spectrum in non test ear

Question 5

attenuation

Answer 5

reduction in intensity of a signal as it crosses from test ear to the cochlea non test ear due to the passage of the sound from the bones to the skull

Question 6

what is the purpose of masking?

Answer 6

to obtain ear specific info, make sure response is from test ear not non test ear
usually for unilateral or asymmetric (hearing loss in both but one ear is worse)

Question 7

what is the solution to crossover

Answer 7

masking, always want masking noise to be louder than crossover in non test ear

Question 8

masking for bone conduction threshold

Answer 8

masking always required every time for ear specific bone conduction threshold

Question 9

masking requirements air conduction

Answer 9

difference of 40 dbHL or more between AC thresholds, only presented thru insert or headphone

Question 10

when air conduction happens will bone conduction also occur?

Answer 10

yes, both cochleas will get bone conducted signal but the better cochlea will respond

Question 11

interaural attenuation

Answer 11

amount of attenuation before crossing over to nontest ear