Interacoustics Titan IMP440 Setup & Installation page 41

Table 3: Reference Values for Stimulus Calibration
Freq. Reference values for stimulus calibration
[dB re. 20 µPa]
EARtone
[Hz] TDH39
3A / ABR
125 45 26
250 25.5 14
500 11.5 5.5
1000 7 0
1500 6.5 2
2000 9 3
3000 10 3.5
4000 9.5 5.5
6000 15.5 2
8000 13 0
WB
-8 -5
LP
-6 -7
HP
-10 -8
CE-
27.5 31.5
Chirp
CE-
26.5 26.5
Low
Chirp
CE-
28 31
High
Chirp
Click
30.5 35
*All figures in bold are Interacoustics Standard values.
Titan
CIR55 DD45 IOW
26
47.5 41
14
27
5.5
13
0
6
2
8
3
8
3.5
8
5.5
9
2
20.5 3
0
12
-5 -8
-7 -6
-8 -10
26
25.5 27.5
28
32.5 28
Setup and Installation Manual
IOW NB
Probe Stimulus
Probe
NB Correction
Values
(except IOW
probe)
4
43.5
4
24.5 26.5
4
9.5 17
6
6.5 10.5
6
5 12
6
12 11
6
11 11
5
3.5 8
5
5.5
5
-5 -0.5
-5
-7
-8
32
32
Variation of Ipsi
stimulus levels
for different
volumes of the
ear canal
Relative to the
calibration
performed on an
IEC 126 coupler
[dB]
0.5 ml 1 ml
9.7 5.3
9.7 5.3
11.7 3.9
-0.8 -0.5
-1.6 -0.8
7.5 3.2
8.0 3.6
3.9 1.4
Page 37
Sound
attenuation
values for
TDH39
earphones
using
MX41/AR or
PN51
cushion
[dB]
3
5
7
15
21 (1600 Hz)
26
31 (3150 Hz)
32
26 (6300 Hz)
24