Using the FONIX 7000 to Verify Coupler and Real-Ear Performance ...

Real Ear Measurements 55
5. Use [F1] to select the test ear. Use [F2] in the Insertion Gain screen to select
REUG 1. Ensure that the source is DigSpeech and that the level is 65 dB SPL.
Figure 72 - Real ear select curve options
6. Press [START] to begin measurement and press [STOP] to store the measured
response.
7. Insert the earplug, taking special care not to change the position of the probe
tube.
8. Use [F2] to select REAG 2. Ensure that the source has remained DigSpeech
and use the up arrow to increase the amplitude to 65 dBSPL.
9. Press [START] to begin measurement and press [STOP] to store the measured
response.
10. Press [MENU] to change the
Display to “Data,” which will allow
you to see the exact decibel
attenuation at each measured
frequency.
a. Use the up/down arrows to
select Data/Graph
b. Use the right arrow to select
Data
c. Press [EXIT] to return to the
Real Ear Insertion Gain
screen.
Change to “Data”
Figure 73 – Real ear insertion gain menu