Interacoustics Titan - Page 103

Titan Instructions for Use - EN Page 99
Table 3: Reference Values for Stimulus Calibration
Freq.
Reference values for stimulus calibration
[dB re. 20 µPa]
Variation of
Ipsi stimulus
levels for
different
volumes of
the ear canal
Relative to the
calibration
performed on
an IEC 126
coupler
[dB]
Sound
attenuation
values for
TDH39
earphones
using
MX41/AR
or PN51
cushion
[dB]
ISO 389
-1
(Interacoustics Standard)
ISO 389
-2
(Interacoustics Standard)
ISO 382
-2
(Interacoustics Standard)
Interacoustics Standard
Interacoustics Standard
Interacoustics Standard
Interacoustics Standard
ISO 389
-4
(ISO 8798)
0.5 ml
1 ml
[Hz]
TDH39
EARtone
3A/ IP30
CIR55
DD45
Ear
Cups
IOW
Probe
IOW/
IOWA
Probe
NB
NB
Stimulus
Correction
Values
(except IOW
probe)
RETSPL
125
45
26
26
47.5
41
43.5
4
3
250
25.5
14
14
27
24.5
26.5
4
5
500
11.5
5.5
5.5
13
9.5
17
4
9.7
5.3
7
1000
7
0
0
6
6.5
10.5
6
9.7
5.3
15
1500
6.5
2
2
8
5
12
6
21 (1600Hz)
2000
9
3
3
8
12
11
6
11.7
3.9
26
3000
10
3.5
3.5
8
11
11
6
-0.8
-0.5
31 (3150Hz)
4000
9.5
5.5
5.5
9
3.5
8
5
-1.6
-0.8
32
6000
15.5
2
2
20.5
3
5.5
5
26 (6300Hz)
8000
13
0
0
12
-5
-0.5
5
24
WB
-8
-5
-5
-8
-5
7.5
3.2
LP
-6
-7
-7
-6
-7
8.0
3.6
HP
-10
-8
-8
-10
-8
3.9
1.4
peRETSPL
CE-
Chirp
27.5
31.5
26
58.5
32
CE-
Chirp
Low
26.5
26.5
25.5
50
27.5
CE-
Chirp
High
28
31
28
58
32
Click
30.5
35
32.5
61.5
33.5
*All figures in bold are Interacoustics Standard values.