Audioscan Axiom - Manual (Page 3)

Axiom ® User's Guide Version 1.8  May 2015
ANSI test frequencies ......................................................................................................................................................... 41
Test box calibration facts ................................................................................................................................................... 42
Calibrating test box reference microphone ........................................................................................................................ 43
Calibration check for coupler microphone ........................................................................................................................ 43
Coupling the hearing instrument for ANSI tests ............................................................................................................... 44
Coupling the hearing instrument for Test box Speechmap ............................................................................................... 45
Positioning the hearing instrument .................................................................................................................................... 45
9 ANSI Hearing Aid Tests ...................................................................................................................................................... 47
ANSI S3.22-1996 facts ....................................................................................................................................................... 47
ANSI S3.22-2003 facts ....................................................................................................................................................... 47
ANSI 1996 Linear and AGC tests ...................................................................................................................................... 48
ANSI 2003 Linear and AGC tests ...................................................................................................................................... 48
ANSI test results ................................................................................................................................................................. 49
10 Other Test Box Measures .................................................................................................................................................. 50
Multicurve procedure ......................................................................................................................................................... 50
Multicurve results ............................................................................................................................................................... 50
Spectral analysis in Multicurve .......................................................................................................................................... 51
Manual control procedure .................................................................................................................................................. 51
Sound level meter using manual control ........................................................................................................................... 52
11 Sensory loss simulator ....................................................................................................................................................... 54
Sensory loss simulator description ..................................................................................................................................... 54
Sensory loss simulator operation ....................................................................................................................................... 54
12 On-Ear Measures - Setup ................................................................................................................................................... 56
On-ear calibration facts ...................................................................................................................................................... 56
Calibration of on-ear probe microphone ............................................................................................................................ 56
Calibration check for probe module .................................................................................................................................. 57
Max TM SPL setup ............................................................................................................................................................ 58
Positioning the client .......................................................................................................................................................... 59
Positioning the probe tube .................................................................................................................................................. 59
13 On-Ear Measures Screen Setup ......................................................................................................................................... 61
SPL or HL scale .................................................................................................................................................................. 61
Hide or show on-ear curves ................................................................................................................................................ 61
14 On-Ear Instrument Measures ............................................................................................................................................. 63
On-ear manual control ........................................................................................................................................................ 63
Sound level meter using on-ear microphones .................................................................................................................... 63
15 RECD measurement ........................................................................................................................................................... 64
Calibration of RECD transducer ........................................................................................................................................ 64
Calibration of RECD transducer ........................................................................................................................................ 64
Measure RECD .................................................................................................................................................................. 68
RECD results ...................................................................................................................................................................... 69
ANSI S3.46(2013) RECD .................................................................................................................................................. 70
RECD protocols .................................................................................................................................................................. 70
RECD facts ......................................................................................................................................................................... 71
16 Insertion Gain ..................................................................................................................................................................... 73
Insertion gain in SPL .......................................................................................................................................................... 73
Insertion gain in HL ........................................................................................................................................................... 74
Audiometric data entry ....................................................................................................................................................... 74
REUR measurement procedure .......................................................................................................................................... 75
REAR measurement procedure .......................................................................................................................................... 76
SII calculation in Insertion gain ......................................................................................................................................... 77
CROS fitting using Insertion gain ...................................................................................................................................... 77
17 Speechmap ......................................................................................................................................................................... 79
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