Inhoudsopgave
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Transducer
DD45
Impedance
10 Ω
Coupler
6ccm
RETSP
Speech
Speech Equ.FF.
3.5
Speech Non-linear
Speech noise
Speech noise Equ.FF.
3.5
Speech noise Non-
linear
White noise in speech
22.5
DD45 (G
-G
) PTB-DTU report 2009-2010.
F
C
TDH39 (G
-G
) IEC60645-2 1997.
F
C
HDA280 (G
-G
) PTB report 2004.
F
C
HDA300 (G
-G
) PTB report 2013.
F
C
IEC Speech level IEC60645-2 1997 (acoustical linear weighting)
IEC Speech Equivalent free field level (G
weighting)
IEC Speech Not linear level 1 kHz RETSPL (DD45-TDH50-HDA300) and EAR3A – IP30 - B71- B81
IEC60645-2 1997 (no weighting)
D-0119998-D – 2022/12
AA222 – Gebruikshandleidung - NL
TDH39
HDA280
DD450
10 Ω
37 Ω
Artificial
6ccm
6ccm
RETSP
RETSP
RETSP
L
L
L
20
20
20
0.5
6.5
6
7
7.5
20
20
20
0.5
6.5
6
7
7.5
22.5
22.5
-G
) from IEC60645-2 1997 (acoustical equivalent sensitivity
F
C
IEC Speech RETSPL
HDA300
EAR3A
40 Ω
23 Ω
10 Ω
Artificial
ear
ear
2ccm
RETSP
L
RETSPL
L
20
20
3.5
1
5.5
2
20
20
20
3.5
1
5.5
2
20
22.5
22.5
22.5
IP30
EAR5A
CIR
10 Ω
10 Ω
68 Ω
2ccm
2ccm
2ccm
RETSP
RETSP
RETSP
L
L
L
20
20
20
20
20
20
22.5
22.5
22.5
B71
B81
10 Ω
12.5 Ω
Mastoi
Mastoi
d
d
RETFL
RETFL
55
55
55
55
57.5
57.5
Pagina 74
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Inhoudsopgave
