Interacoustics affinity 2.0 - Introduction; Intended Use

2 REM440 ........................................................................................................................144
2.1 Quick Guide................................................................................................................144
2.2 About REM440 ............................................................................................................146
2.3 REM440 Tests .............................................................................................................146
2.4 Launching REM440 with Databases ...........................................................................147
2.4.1 Launching REM440 from Noah4: ..............................................................................147
2.4.2 Launching REM440 from OtoAccess™: ....................................................................147
2.5 The REM Screen Elements ........................................................................................149
2.6 Background on Real-Ear Measurements using REM440 ............................................156
2.6.1 Required Items ........................................................................................................156
2.6.2 Calibration ..............................................................................................................158
2.6.3 Gain versus Response View.....................................................................................159
2.6.4 Real-ear Measurements on Open Fittings .................................................................160
2.6.4.1 Calibrate for Open Fit.................................................................................161
2.6.5 Probe Placement .....................................................................................................162
2.6.6 Stimuli for Real-ear Measures...................................................................................162
2.6.6.1 Tone Stimuli ..............................................................................................162
2.6.6.2 Speech Stimuli/ISTS ..................................................................................163
2.6.6.3 Composite Signals/ICRA ............................................................................163
2.6.6.4 What Stimulus to Choose? .........................................................................163
2.6.6.5 Presenting a Stimulus ................................................................................164
2.6.7 Working with Fitting Targets .....................................................................................165
2.6.7.1 Calculating the Target ................................................................................165
2.6.7.2 Choosing a Fitting Prescription ...................................................................165
2.6.7.3 DSL m[i/o] options....................................................................................166
2.6.7.4 NAL-NL1/NAL-NL2 options.........................................................................168
2.6.8 Comparing to the Hearing Aid Fitting Software...........................................................169
2.6.8.1 On Top Mode ............................................................................................169
2.6.8.2 Table Mode ...............................................................................................170
2.6.8.3 Show Cursor on the Graph .........................................................................170
2.4.1 Speech Intelligibility Index (SII) .................................................................................171
2.6.9 Display Peaks and Valleys .......................................................................................171
2.6.10 Preconditioning and Sweep Delay.............................................................................172
2.6.10.1 Preconditioning..........................................................................................172
2.6.10.2 Sweep Delay ..............................................................................................172
2.6.11 Smoothing a Curve ..................................................................................................172
2.6.12 Comparing Curves ...................................................................................................173
2.6.13 Managing Multiple Curves ........................................................................................173
2.6.13.1 Curve Display Options ...............................................................................174
2.6.13.2 Deleting Curves .........................................................................................174
2.6.13.3 Combined Screen View ..............................................................................174
2.6.13.4 Changing the Curve Colour ........................................................................174
2.7 Clinical application of Real-Ear Measurements using REM440 ..................................175
2.7.1 REUR/REUG Measurements....................................................................................175
2.7.1.1 Predicted REUR ........................................................................................177
2.7.1.2 REUG/REUR from a previous Session ........................................................178
2.7.1.3 REUR/REUG in both ears view...................................................................178
2.7.2 REAR/REAG Measurements ....................................................................................179
2.7.3 REIG Measurements ...............................................................................................181
2.7.4 RECD Measurements ..............................................................................................183