Interacoustics AC40 Gebrauchsanweisung Seite 656

AC40 RETSPL-HL Tabel
Transducer DD45
10 Ω
Impedance
Coupler 6ccm
RETSPL
Speech
Speech Equ.FF.
Speech Non-linear
Speech noise
Speech noise Equ.FF.
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
HDA200 (G -G ) ANSI S3.6 2010 and ISO 389-8 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
IEC Speech Not linear level 1 kHz RETSPL (DD45-TDH50-HDA200-HDA300) and EAR 3A – IP30 - B71- B81 IEC60645-2 1997 (no
weighting)
Transducer
Impedance
Coupler
Max HL
Speech
Speech Equ.FF.
Speech Non-linear
Speech noise
Speech noise Equ.FF.
Speech noise Non-linear
White noise in speech
IEC Speech RETSPL
TDH39 HDA280
10 Ω 37 Ω
6ccm 6ccm Artificial ear
RETSPL RETSPL
20 20 20
3.5 0.5 6.5
6 7 7.5
20 20 20
3.5 0.5 6.5
6 7 7.5
22.5 22.5
-G ) from IEC60645-2 1997 (acoustical equivalent sensitivity weighting)
F C
IEC Speech max HL
DD45 TDH39 HDA280
10 Ω 10 Ω 37 Ω
6ccm 6ccm 6ccm Artificial ear
Max HL Max HL
110 110 100
115 120 110
120 120 120
100 100 95
115 115 105
115 115 120
95 95 95
HDA200 HDA300 EAR3A
40 Ω 23 Ω 10 Ω
Artificial ear 2ccm
RETSPL RETSPL RETSPL
20 20
3.5 1
5.5 2 20
20 20
3.5 1
5.5 2 20
22.5 22.5 22.5
HDA200 HDA300 EAR3A
40 Ω 23 Ω 10 Ω
Artificial ear 2ccm
Max HL Max HL Max HL
90 95
100 110
110 120 100
85 90
95 110
105 120 90
90 95 85
IP30 EAR5A CIR22/33
10 Ω 10 Ω 68 Ω
2ccm 2ccm 2ccm
RETSPL RETSPL RETSPL
20 20 20
20 20 20
22.5 22.5 22.5
IP30 EAR5A CIR22/33
10 Ω 10 Ω 68 Ω
2ccm 2ccm 2ccm
Max HL Max HL Max HL
100 100 90
90 90 90
85 85 85
B71 B81
10 Ω 12.5 Ω
Mastoid Mastoid
RETFL RETFL
55 55
55 55
57.5 57.5
B71 B81
10 Ω 12.5 Ω
Mastoid Mastoid
Max HL Max HL
60 60
50 50
55 60