Survey Of Reference And Max Hearing Level Speech Audiometer - Interacoustics AC40 Service Manual

AC40 Service Manual

Survey of reference and max hearing level Speech Audiometer

ANSI Speech
ANSI
Coupler: ANSI S3.7-1995 (NBS-9A) / IEC 60318-3 1998 (6ccm)
Speech Audiometer
Speech
ANSI S3.6-2010
RETSPL
Linear Type A 19.5
Equ. FF Type A-E 15.5
Not Linear¹ 7.0
Speech WN
ANSI
Coupler: ANSI S3.7-1995 (NBS-9A) / IEC 60318-3 1998 (6ccm)
Speech Audiometer
Speech
RETSPL
Linear Type A 20.0
Equ. FF Type A-E 21.5
Not Linear¹ 7.5
Speech WN
ANSI HDA 200
Coupler: IEC60318-2 with type 1 adaptor
Speech Audiometer
Speech
ANSI S3.6-2010
Frequency RETSPL MaxHL RETSPL MaxHL
Linear Type A 19.0
Equ. FF Type A-E 18.5
Not Linear¹ 5.5
Speech WN
ANSI
Coupler: ANSI S3.7-1995 (NBS-9A) / IEC 60318-3 1998 (6ccm)
Speech Audiometer
Speech
ANSI S3.6-2010
RETSPL
Linear Type A 18.5
Equ. FF Type A-E 18.5
Not Linear¹ 6.0
Speech WN
¹ This value come from pure tone 1kHz RETSPL value. (Not linear describe
there is no equalizing of the signal flat electrical response)
Binaural
0°
RETSPL RETSPL
Speech 15.0
Speech Noise 15.0
Speech WN 17.5
TDH39
Speech Noise
ANSI S3.6-2010
MaxHL RETSPL MaxHL
110 19.5 100
105 15.5 100
120 7.0 115
22.0 95
HDA 280
Speech Noise
MaxHL RETSPL MaxHL
100 20.0 95
95 21.5 90
120 7.5 120
22.5 95
Speech Noise
ANSI S3.6-2010
90 19.0 85
85 18.5 80
110 5.5 105
21.5 90
DD45
Speech Noise
ANSI S3.6-2010
MaxHL RETSPL MaxHL
110 18.5 100
100 18.5 100
120 6.0 115
21.0 95
ANSI Free Field
ANSI S3.6-2010
45° 90° 0°
RETSPL RETSPL
11.0 9.5 17.0
11.0 9.5 17.0
13.5 12.0 19.5
Coupler: ANSI S3.7-1995 (HA-2 with 5mm rigid Tube)
Speech
Speech WN
Speech
Speech WN
Speech
Speech WN
Speech
Speech WN
Free Field max HL is found by subtracting the
Monaural Free Field Power
45° 90° 0° - 45° - 90°
RETSPL RETSPL Max SPL
13.0 11.5
13.0 11.5
15.5 14.0 87.5
ANSI Ear 3A
Speech Audiometer
Speech Speech Noise
ANSI S3.6-2010 ANSI S3.6-2010
RETSPL MaxHL RETSPL MaxHL
12.5 110 12.5
15.0
ANSI Ear 5A
Coupler: IEC 60318-5 2006
Speech Audiometer
Speech Speech Noise
ANSI S3.6-2010 ANSI S3.6-2010
RETSPL MaxHL RETSPL MaxHL
12.5 110 12.5
15.0
ANSI CIR 22/CIR33
Coupler: ANSI S3.7-1995 (HA-2)
Speech Audiometer
Speech Speech Noise
ANSI S3.6-2010 ANSI S3.6-2010
RETSPL MaxHL RETSPL MaxHL
12.5 100 12.5
15.0
ANSI B71
Coupler: ANSI S3.13-1987 (R2002)
Speech Audiometer
Speech Speech Noise
ANSI S3.6-2010 ANSI S3.6-2010
RETSPL MaxHL RETSPL MaxHL
55.0 60 55.0
57.5
Free Field max SPL
selected RETSPL value
Free Field Line
0° - 45° - 90°
Max SPL
90 100
85 100
97.5
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