FONIX® 8000 - Frye Electronics

Real-Ear Measurements 173
SPL input level. If the clinician changes the input level to 80 dB SPL, the target
will decease, showing the prescription for that input level. When the unaided
(REUG 1) is selected, the target curve uses the source settings for REAR 3.
In the Real-ear SPL screen, up to three SPL targets are displayed on the screen.
When NAL-NL1 or MOD NAL is the selected fitting rule, all three targets are
automatically displayed. They are labeled L, M and H. The L target is tied to
the input level and speech weighting selected for REAR 2. The M target is tied
to the input level and speech weighting selected for REAR 3. The H target is
tied to the input level and speech weighting selected for REAR 4. That is, if the
clinican changes the input level or speech weighting of REAR 2, 3 or 4, the corresponding
SPL target will also adjust.
If a fitting rule other than NAL-NL1 or MOD NAL is selected, only the M target
is displayed, which is tied to REAR 3. If desired, the clinican can turn on
the display of the other two targets using [F3], but these targets will be linearly
related to each other. That is, unlike with the NAL-NL1 or MOD NAL non-linear
targets, the shape of the linear target will not change as the input level of the
input signal changes.
8.4.7 Using Semi-Auto and Fully-Auto Mode
The Real-ear Insertion Gain and Real-ear SPL screens have basic implementations
of Semi-Automatic and Fully-Automatic test modes. In Semi-Automatic
mode, the analyzer automatically advances to the next measurement curve
when the measurement is stopped. That is, if the user selects REUR 1 and takes
a measurement, the analyzer will automatically advance the curve selection to
REAR 2. This eliminates the need for the clinician to press [F2] and manually
advance to the next curve. Semi-automatic mode is available in both the Realear
Insertion Gain and Real-ear SPL screens.
to activate semi-automatic mode:
1. Enter the Real-ear Insertion Gain or Real-ear SPL screen.
2. Press [MENU] to open the local menu.
3. Select Auto Test under Measurements [, ]. Pressing [START] will jump to
the beginning of the next section in the local menu.
4. Choose Semi-Auto using [, ].
5. Press [EXIT] to return to the real-ear measurement screen. The analyzer will
now be in Semi-Automatic mode.
Fully automatic mode automatically measures REAR 2, REAR 3, REAR 4, and
REAR 5 in quick succession. When REUR 1 is selected, after pressing [START]
to perform the unaided measurement, the user must still press [STOP] to stop
the test. This will automatically advance the curve selection to REAR 2, but no
measurement will be taken until the [START] button is pressed again.