lecture 19 (test 2)

Question 1

we experience intensity as

Answer 1

loudness

Question 2

we experience frequency as

Answer 2

pitch

Question 3

psychoacoustics is the

Answer 3

study of human hearing

Question 4

Minimum Audible Field (MAF) Threshold

Answer 4

• present sounds sound to listeners from a speaker
• more natural
• sensitive to head movement
• very sensitive to localization and exam room

Question 5

Minimum Audible Pressure (MAP) Threshold

Answer 5

• present sounds through headphones
• precisely controlled
• not sensitive to head movement
• not very natural
• eliminate some of the ears natural funneling and filtering abilities

Question 6

lowest detection thresholds are ______ to ________-

Answer 6

2 000- 6 000 HZ

Question 7

Terminal threshold

Answer 7

maximal sound pressures that humans can tolerate and then experience pain

Question 8

The area between the minimal audibility curve and the terminal threshold is the _____

Answer 8

dynamic range

Question 9

above threshold

Answer 9

suprathreshold

Question 10

can feel low-frequency sounds because

Answer 10

the change in air pressure for an extended period of time (high-frequency changes are too fast to detect)

Question 11

which; MAF of MAP produces higher thresholds

Answer 11

MAP

Question 12

monaural stimulation thresholds are ______

Answer 12

higher by 6db

Question 13

longer sounds are heard as being …

Answer 13

louder

Question 14

masking

Answer 14

using a second sound to make the detection of another sound more difficult

Question 15

what allows us to hear 2 000 Hz tone

Answer 15

masking

Question 16

equal loudness curves start at ____

Answer 16

1000 Hz

Question 17

how does the auditory system like to discriminate sound intensity

Answer 17

comparing activity across many auditory fibers

Question 18

horizontal plane

Answer 18

azimuth

Question 19

where is 0 degrees azimuth

Answer 19

directly in front

Question 20

azimuth degrees moves …

Answer 20

clockwise

Question 21

vertical plane

Answer 21

elevation

Question 22

diotic sounds

Answer 22

arrives at both ears at the same time

Question 23

dichotic sounds

Answer 23

arrive at each ear at a different time

Question 24

what do we do to assist localization

Answer 24

turn head

Question 25

Interneural Time Difference (ITD)

Answer 25

• relevant for dichotic sounds only
• less susceptible to frequency
  have listeners sit in a room with microphones in ears, when the sound reaches the first mic starts the timer, when reaches the second mic, stops the timer