6.4.3.1
Correction factors in Estimated Audiogram .......................................... 137
6.5 System setup ..................................................................................................................... 139
6.5.1 Auto Tests Setup .................................................................................................. 139
6.5.2 General Setup ....................................................................................................... 141
6.5.3 Report Templates ................................................................................................. 142
6.5.4 Correction Factors ................................................................................................ 143
6.5.4.1 Correction factor values ........................................................................ 143
6.6 Preparing for an ASSR measurement ............................................................................... 145
6.6.1 Visual inspection of the ear canal ......................................................................... 145
6.6.2 Instruction of patient ............................................................................................. 145
6.6.3 Preparation of skin ................................................................................................ 145
6.6.4 Electrode placement ............................................................................................. 146
6.6.5 Insertion of the Eartips .......................................................................................... 146
6.6.6 Impedance check.................................................................................................. 146
6.7 Performing an ASSR ......................................................................................................... 148
Starting ASSR from OtoAccess™ or NOAH ..................................................................... 148
Performing an ASSR measurement .................................................................................. 148
6.8 ASSR Results .................................................................................................................... 149
6.9 BC ASSR ........................................................................................................................... 151
6.9.1 Incorrect detection by transducer induced ElectroMagnetic Interference (EMI) .. 151
6.9.2 Placement of bone conductor ............................................................................... 152
6.10 ASSR Masking .................................................................................................................. 153
6.11 NOAH Compatibility........................................................................................................... 155
6.12 ASSR PC shortcuts ........................................................................................................... 155
7
ABRIS .......................................................................................................................................... 157
7.1 About the ABRIS module .................................................................................................. 157
7.2 The ABRIS Menu Items ..................................................................................................... 157
7.3 General Operation of ABRIS ............................................................................................. 158
7.4 System setup ..................................................................................................................... 160
7.4.1 General Setup ....................................................................................................... 160
7.4.2 Report Setup ......................................................................................................... 161
7.4.3 Password .............................................................................................................. 162
7.5 Preparing for a ABRIS measurement ................................................................................ 163
7.5.1 Visual inspection of the ear canal ......................................................................... 163
7.5.2 Instruction of patient ............................................................................................. 163
7.5.3 Preparation of skin ................................................................................................ 163
7.5.4 Placement of Electrodes ....................................................................................... 163
7.5.5 Impedance Check ................................................................................................. 164
7.6 Performing a ABRIS measurement ................................................................................... 164
7.7 ABRIS Results ................................................................................................................... 165
7.8 ABRIS PC shortcuts .......................................................................................................... 166
8
DPOAE ........................................................................................................................................ 167
8.1 About the DPOAE module ................................................................................................. 167
8.1.1 Brief Introduction to DPOAE ................................................................................. 167
8.2 The DPOAE Menu Items ................................................................................................... 168
8.3 General Operation of DPOAE20 ....................................................................................... 169
8.4 DPOAE20 System Setup .................................................................................................. 173
8.4.1 Auto Test Setup .................................................................................................... 173
8.4.2 Template ............................................................................................................... 174
8.4.3 Norm Data ............................................................................................................ 175
8.5 Preparing for a DPOAE measurement .............................................................................. 176
8.5.1 Visual inspection of the ear canal ......................................................................... 176
8.5.2 Instruction of patient ............................................................................................. 176
8.5.3 Probe selection ..................................................................................................... 176
8.6 Performing a DPOAE measurement ................................................................................. 177
8.7 Results ............................................................................................................................... 178