Aventa 3 In-Situ Fitting Guide - GN ReSound

In-Situ Fitting Guide
The In-Situ feature allows the dispenser the flexibility of using
the Aventa 3 software either as a recheck or as a starting point
to find and measure hearing thresholds. The In-Situ feature is
currently supported for BTE and RIE hearing instruments. Hearing
instruments must be in the connected state to perform In-situ
measurements.
1. Launch In-Situ
1.1 On the Pre-Fit screen, click the “In-Situ Audiometry” button
within the measurement module on the left hand side.
(Figure 1.1)
1.2 Alternatively click ‘View” in the top menu bar and go to
“Measurement” and “In-Situ Audiometry. (Figure 1.2)
Figure 1.1
2. Getting ready to do In-Situ
2.1 With the In-Situ module launched, follow the preparation
screens to obtain the most accurate results.
2.2 Select dome type.
Using a closed and occluded dome is recommended in
order to be able to measure threshold for all frequencies.
If an open dome is selected a warning message will appear
stating that not all frequencies and thresholds will be
available. (Figure 2.2)
2.3 The Double Dome is recommended when testing with RIE’s
and Comply Tips for BTE’s
Figure 1.2
Comply tip
Double Dome
2.4 Click “Start Evaluation” to check for excessive
environmental noise. Once the evaluation is complete,
Aventa 3 will give an “OK” to begin In-Situ measurements
or a warning if the environment is considered too noisy for
testing. (Figure 2.4)
Figure 2.2
It is possible to skip the environmental testing if preferred.
2.5 Click the “Begin In-Situ” button to move to test screen and
initiate In-Situ measurements. (Figure 2.4)
Figure 2.4

3. Conducting In-Situ measurements
3.1 Select the ear that you want to test by clicking “R” or “L” in
the upper corner of the audiogram. (Figure 3.1)
3.2 Select a test frequency by clicking on the “Freq” arrows,
using the keyboard or pick it from the frequency drop down
(Figure 3.2)
3.3 Select a signal tone choosing between pure tone and
warble tone (Figure 3.3)
3.4 Select tone length or manual control. Click the “Tone” play
button to play the tone. (Figure 3.4)
3.5 Set the signal intensity by selecting the initial stimulus level.
Change the intensity in the drop down, by clicking the “5
step dB” arrows or using the keyboard. (Figure 3.5)
3.6 Press the “Tone” button or the keyboard “Space” bar to
present tone/stimulus. If in manual mode the user must
hold the “Tone” button down for the desired length of time.
A green status indicator shows when tone is being
presented.
3.7 Once a threshold is determined press the “Mark” button, or
keyboard “Enter” button.
3.8 To talk to the patient during test, press the “Talk Over”
button in the bottom left hand side of the screen. This turns
the hearing instrument microphone “on” and allows hearing
through the instrument(s) during the In-Situ testing.
Once finished talking, press the “Talk Over” button again to
turn “Off” the microphone and continue testing. (Figure 4.1)
Figure 3.1
Figure 3.3
Figure 3.2
Figure 3.4
4. Save and program
4.1 Once In-Situ testing is complete click the “Save” button to
store the In-Situ audiogram in the database/Noah. A green
confirmation bar will indicate that the audiogram has been
successfully saved to the database.
4.2 Click “Auto-Fit” to initiate a fitting based on the In-Situ
audiogram
4.3 To simply leave the In-Situ module click “Close”. (Figure 4.1)
Figure 3.5
Figure 4.1
M200169-GB-11.06 Rev.A
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