Real-Ear Measurements 147
5. Enter the Insertion Gain or Real-ear SPL screen by using [F3] or [F4] in the
Real-ear Navigation screen, respectively.
6. Level the sound field speaker. See Section 6.2.4.
7. Select the desired ear with [F1].
8. Look at the [F2] setting to see which curve is selected. If necessary, use [F2]
to select REUR 1. (Press [F2]. Use [∨, ∧] to select REUR 1. Press [>] to com
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plete the selection and close the pop-up menu.)
9. Use [F5] to select Composite.
10. Use [∨, ∧] to select the desired amplitude for the measurement. We recom
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mend 65 dB SPL.
11. Press [START] to start the measurement.
12 Press [STOP] when the unaided response has stabilized. Curve 1 in the bot
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tom graph of Figure 6.4.1 shows an example of the unaided response using
the Gain display in the Insertion Gain screen.
To choose between Gain and SPL (
Output):
In the Real-ear Insertion Gain screen, the bottom graph contains the unaided
and aided measurement curves as a function of gain (REUG/REAG) or of output
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SPL (
REUR/REAR). The “SPL” display includes includes the input signal in the
measurement. The “gain” display subtracts the input signal in the measurement.
1. Enter the Real-ear Insertion Gain screen.
2. Press [MENU] to open the local menu.
3. Select Display using the up-down arrow keys.
4. Use the right arrow key to choose between Gain and SPL.
5. Press [EXIT] to return to the Real-ear Insertion Gain screen. The bottom
graph should now match your selection.
The Real-ear SPL screen cannot display measurements in Gain. All measure
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ments are displayed in SPL (output). Therefore, the Display selection in the
local menu is disabled.
To use an average unaided response:
It is also possible to display an average unaided response on the measurement
screen instead of a measured response. This allows the clinician to skip the
unaided response measurement. When the unaided response is set to aver
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age, the REAR 2 curve is automatically selected at the first measurement curve
instead of the REUR 1 curve.
To use an average unaided curve, press [MENU] in the Insertion Gain or Real-
ear SPL screen. Use the arrow keys to set Unaided to Avg. Press [EXIT] to close
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