AC40 Service Manual Page 12
Swedish Speech calibration
SWEDEN TDH39
Coupler IEC 60318-3 1998 (6ccm)
Speech Audiometer
Speech Speech Noise
STAF 1996 STAF 1996
RETSPL MaxHL RETSPL MaxHL
Linear Type A 22.0 108 27.0 93
Equ. FF Type A-E 0.5 120 0.5 115
Not Linear 22.0 105 27.0 95
Speech WN 22.5 95
SWEDEN HDA 280
Coupler IEC 60318-3 1998 (6ccm)
Speech Audiometer
Speech Speech Noise
IEC60645-2 1997 IEC60645-2 1997
RETSPL MaxHL RETSPL MaxHL
Linear Type A 20.0 100 20.0 95
Equ. FF Type A-E 6.5 110 6.5 105
Not Linear 7.5 120 7.5 120
Speech WN 22.5 95
SWEDEN HDA 200
Coupler IEC60318-1 with type 1 adaptor
Speech Audiometer
Speech Speech Noise
IEC60645-2 1997 IEC60645-2 1997
Frequency RETSPL MaxHL RETSPL MaxHL
Linear Type A 20.0 90 20.0 85
Equ. FF Type A-E 3.5 100 3.5 95
Not Linear 5.5 110 5.5 105
Speech WN 22.5 90
SWEDEN DD45
Coupler IEC 60318-3 1998 (6ccm)
Speech Audiometer
Speech Speech Noise
STAF 1996 STAF 1996
RETSPL MaxHL RETSPL MaxHL
Linear Type A 22.0 108 27.0 93
Equ. FF Type A-E 3.5 115 3.5 115
Not Linear 22.0 104 27.0 94
Speech WN 22.5 95
SWEDEN EAR 3A
Coupler IEC 60318-5 2006
Speech Audiometer
Speech Speech Noise
STAF 1996 STAF 1996
RETSPL MaxHL RETSPL MaxHL
Speech WN 22.5 85
SWEDEN B71
Coupler 60318-6 2007
Speech Audiometer
Speech Speech Noise
IEC60645-2 1997 IEC60645-2 1997
RETSPL MaxHL RETSPL MaxHL
Speech 55.0 60 55.0 50
Speech WN 57.5 55
Sweden Free Field
ISO 389-7 2005 Free Field max SPL
Free Field max HL is found by subtracting the
selected RETSPL value
Binaural Monaural Free Field Power Free Field Line
0° 45° 90° 0° 45° 90° 0° - 45° - 90° 0° - 45° - 90°
RETSPL RETSPL RETSPL RETSPL RETSPL RETSPL Max SPL Max SPL
Speech 0.0 -4.0 -5.5 2.0 -2.0 -3.5 90 100
Speech Noise 0.0 -4.0 -5.5 2.0 -2.0 -3.5 85 100
Speech WN 2.5 -1.5 -3.0 4.5 0.5 -0.5 87.5 97.5
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