FONIX® 8000 - Frye Electronics

Real-Ear Measurements 169
5. Enter the Insertion Gain or Real-ear SPL screen by using [F3] or [F4] in the
Real-ear Navigation screen, respectively.
6. Select the desired ear with [F1].
7. Level the sound field speaker. See Section 8.2.4.
8. Use [F2] to select REUR 1. (Press [F2]. Use [, ] to select REUR 1. Press
[] to complete 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 recommend
65 dB SPL.
11. Press [START] to start the measurement.
12 Press [STOP] when the unaided response has stabilized. Curve 1 in the bottom
graph of Figure 8.4.1 shows an example of the unaided response using
the Gain display in the Insertion Gain screen.
13. If desired, use [F1] to switch to the other ear, and repeat steps 7-12.
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
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 measurements
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 average,
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 Realear
SPL screen. Use the arrow keys to set Unaided to Avg. Press [EXIT] to close
the local menu. The average unaided response will now be displayed on the
measurement graph.