Increased pressure

1
(No Transcript)
2
(No Transcript)
3
(No Transcript)
4
Increased pressure
amplitude
Atmospheric pressure
time
Decreased pressure
One cycle
5
(No Transcript)
6
(No Transcript)
7
(No Transcript)
8
1 octave
9
(No Transcript)
10
(No Transcript)
11
(No Transcript)
12
(No Transcript)
13
(No Transcript)
14
incus
malleus
Stapes
Tympanic membrane (drum)
Oval window
Auditory canal
Round window
15
(No Transcript)
16
(No Transcript)
17
(No Transcript)
18
(No Transcript)
19
(No Transcript)
20
(No Transcript)
21
(No Transcript)
22
(No Transcript)
23
apex
24
(No Transcript)
25
(No Transcript)
26
(No Transcript)
27
(No Transcript)
28
(No Transcript)
29
(No Transcript)
30
(No Transcript)
31
(No Transcript)
32
(No Transcript)
33
How much masker is needed before a 2000 Hz tone
is inaudible?
34
(No Transcript)
35
(No Transcript)
36
(No Transcript)
37
(No Transcript)
38
(No Transcript)
39
(No Transcript)
40
(No Transcript)
41
(No Transcript)
42
(a)
440 harmonics
440
820
1320
1760
2200
2640
3080
harmonics only no fundamental
(b)
amplitude
440
820
1320
1760
2200
2640
3080
(c)
880 harmonics
440
820
1320
1760
2200
2640
3080
440 alone
(a/b)?
(a/b)?
(c)
880 alone
43
(a)
440 harmonics
440
820
1320
1760
2200
2640
3080
harmonics only no fundamental
(b)
amplitude
440
820
1320
1760
2200
2640
3080
(c)
880 harmonics
440
820
1320
1760
2200
2640
3080
440 alone
(c)
880 alone
44
(No Transcript)