Differential Sensitivity

Question 1

Differential sensitivity

Answer 1

Discrimination power of the ear

How you can tell the difference between 2 auditory stimuli

Threshold of audibility describes audiological responses to frequency and intensity

How does the war detect change in a stimulus

Question 2

Just noticeable difference

Answer 2

The difference that can be detected

JND for 1 lb is .1 lb
JND for 100lbs is 10lbs

Question 3

Frequency discrimination

Answer 3

How far apart 2 frequencies need to be so you can just tell a difference

Question 4

Frequency difference required to just barely detect a change from a given frequency is relatively constant at _______ Hz

Answer 4

400-2000

Question 5

About a ____ Hz difference in frequency results in the perception of a difference

Answer 5

1.6

Question 6

As intensity is raised, it is ______ to hear difference and you get a _________ JND

Answer 6

Easier

Smaller

Question 7

Intensity discrimination

The auditory system can detect approx. ______ - _______ dB difference in intensity between 2 sounds across a broad frequency range and at a variety of intensity levels.

Answer 7

0. 5

1. 0

Question 8

The auditory system can detect the difference between 80Hz and ______ Hz tone at any frequency

Answer 8

81

Question 9

A 50 ms sound would sound _____ than a 60 ms sound because of the _____________

Answer 9

Softer

Time intensity trade off

Question 10

Acoustic markers

Answer 10

170ms - 10ms silence = 170 ms tone

170ms - 20ms silence = 170ms tone

If the listener can tell a difference it’s assumed the auditory system can just detect a 10 ms difference between 2 acoustic markers