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FONIX FP40 Portable Hearing Aid Analyzer 147
TABLE 3
HL to real-ear SPL conversion table
from ANSI S3.6-1989 Table G.1
FREQ (Hz) dB
250 19.0
500 12.0
750 10.5
1000 9.0
1500 12.0
2000 15.0
3000 15.5
4000 13.0
6000 13.0
8000 14.0
TABLE 4
HTL(HL) to UCL(HL)
prediction table from Pascoe(1988) Table 4
HTL UCL HTL UCL
dBHL HL dBHL HL
0 97 65 114
5 99 70 115
10 99 75 117
15 98 80 120
20 97 85 120
25 101 90 124
30 102 95 130
35 101 100 127
40 103 105 133
45 105 110 134
50 107 115 137
55 108 120 140
60 110
This table is only used when the age is not
specified in the Target Screen. For age-specific
conversion values, contact Frye support at
support@frye.com or call the factory.