Masking

Question 1

Interaural attenuation

Answer 1

Sound travels from one side of the head to the other, some energy is lost in the transmission

Question 2

Cross-hearing

Answer 2

When sound travels from one side of the head to the other

Question 3

Masking

Answer 3

Eliminate the participation of the
non-test ear when finding the thresholds in the test ear

To mask the non-test ear, a noise with the
appropriate intensity and matched frequency spectrum is presented

Question 4

Types of Masking Noise

Answer 4

White noise: noise covering a
broad range of frequencies with
equal energy.

Narrowband noise: band-pass filters to center around the frequency being
tested

Question 5

Central masking

Answer 5

small increase in the threshold of the
test ear when masking is introduced to the non-test ear

Question 6

overmasking

Answer 6

crosses over from the non-test ear to the test ear creating an inaccurate response

Question 7

Masking Methods

Answer 7

“shotgun” approach: arbitrary level
of masking noise

minimum noise level: minimum
amount of noise to mask a pure tone

maximum masking: maximum level of noise that can be used in the non-test ear before over masking occurs.

Question 8

The Plateau Method

Answer 8

most popular and recommended masking method

utilizes the minimum and maximum masking principles