Interacoustics Affinity2.0 Quick Manuals page 71

3. To verify the fitting, select the ISTS signal (to use a calibrated speech-like signal for verification) .
4. Click on the Visible Speech Mapping button at the bottom left of the screen. If using an Open Fitting
configuration, click on the "Calibrate for Open Fit" before proceeding with verification.
5. Click on the slider to adjust the input level of the ISTS signal; suggested start level is 65 dB SPL. Click
START.
6. Repeat step 5 using soft and loud levels; suggested levels are 50-55 dB SPL and 75-80 dB SPL,
respectively.
7. Change the Input signal to Warble Tone. Using the slider (Figure 1, number 5) to increase the level of the
signal to 90. Click START to measure the MPO.
NOTE: If choosing DSLv.5, the MPO targets will automatically appear, since the UCL thresholds are
always predicted from the audiogram. If choosing NAL-NL1 or NAL-NL2, the UCL thresholds need to be
entered in the audiogram screen for the MPO targets to be generated.
8. Fine tune the hearing aid if necessary, to match the target. Use the On Top mode button
minimize the REM screen and to bring it "on top" of the hearing aid manufacturer software.
9.
Counsel the patient, using the tools described below .
Counseling Elements in Visible Speech Mapping
1
For instructions on how to do the open fitting calibration, please refer to the REM Quick Guide
Item No. 8105092 – 12/2013
Upper line :
louder speech components
Lower line :
softer speech components
The Speech Spectrum: used to counsel
regarding audibility.

For example: showing the patient that
soft sounds (lower line on image to the
left) are below the thresholds could help
counsel on expectations of hearing aid
performance.

It could also help HCPs demonstrate the
effects of fine tuning the HI.
Using Live Speech Mapping or
Environmental sounds.

Select the "Live Voice" feature to
demonstrate the effects, benefits and
limits of amplification.

Use a whisper to show how the hearing
aid reacts to it.

Ask the significant other to stand far
away from the hearing instrument user
and talk; this helps demonstrate some
of the limits of the hearing instrument.

Play environmental sounds to
demonstrate how they sound with the
hearing aid.
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