Frye FONIX 7000, Operator'S Manual

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FONIX 7000 Hearing Aid Analyzer
These screens are:
• Audiogram Entry screen [F1]
• Target screen [F2]
• Insertion Gain screen [F3]
• SPL screen [F4]
• Visible Speech [F5]
6.1.2 Navigating through the Real-Ear Screens
The Real-Ear Navigation screen is the key to moving through the different real-
ear screens.
• To enter the Real-Ear Navigation screen from the Opening screen, press
[F2].
• To enter any of the real-ear screens, press the appropriate function key
button from the Real-Ear Navigation screen. You can use the function but-
tons found on the front panel of the 7000 test system or on the remote
module.
• To exit from any of the real-ear measurement screens, press the [EXIT]
button on either the front panel of the 7000 analyzer or the remote mod-
ule. This will return you to the Real-Ear Navigation screen.
6.2 Real-Ear Setup
This section describes how to set up your client and your analyzer for real-ear
measurements. It is important to follow these instructions carefully since your
setup will have a direct impact on the accuracy of your measurements.
6.2.1 Placing the Sound Field Speaker
For the most accurate, repeatable measurements, we recommend a sound field
speaker placement of approximately 12 inches from the client’s head and point-
ing towards the ear to be tested. The speaker should be at an azimuth angle of
45 degrees (halfway between the client’s nose and ear). The height of the loud-
speaker should be level with, or a little above the ear. See Figure 6.2.1.
NOTE: It is especially important for accuracy that the speaker is within 12" if
you are using a 90-dB signal.