Real-Ear Measurements 159
OUTPUT LIMIT—Level of output limiting. Please review red warning page.
NOISE RED (TONE & COMP)—Select the amount of noise reduction suitable to
your environment. See Section 2.5.1.3 and 2.5.2.3 for more details.
REF MIC—The status of the reference microphone.
Target Menu
Press [BACK] from the Main Real-Ear menu to enter the Target menu.
FIT RULE—The fitting rule used to create the real-ear and coupler targets.
Selections are: NAL-NL1, NAL-RP, DSL WDRC, DSL LIN, POGO, BERGER, 1/3
GAIN, 1/2 GAIN, 2/3 GAIN, and DIRECT. A selection of NAL-NL1 will add sev-
eral menu selections to the menu screen.
AGE—The age of the client. A selection of NONE sets the age to ADULT but
turns of the age display.
TARGET REF— The measurement curve that the target is based upon. Choose
from CURVE 1, CURVE 2, and CURVE 3, and AUTO. See Section 5.5.3.2.
COMPRESSION—The type of wideband compression threshold the aid has.
This is selectable in increments of 1 dB, and it is only available with a fitting
rule selection of DSL WDRC or NAL-NL1.
CHANNELS—The number of channels the aid has. This is only available with a
fitting rule selection of NAL-NL1.
AID LIMITING—The type of output limiting the aid has. If the aid has output
limiting, usually WIDEBAND should be selected. If the aid has output limiting,
and if the aid has more than one channel, this can be set to MULTICHAN. If the
aid doesn’t have limiting, set this to NONE. This selection is only available with
a fitting rule selection of NAL-NL1.
FIT TYPE—Type of fitting Choose from UNILATERAL and BILATERAL. Bilateral
fittings require the audiograms of both ears to be entered.This is only available
with a fitting rule selection of NAL-NL1.
*REFERENCE—Type of leveling used in the real-ear measurement. When HEAD
SURFACE is selected, leveling is performed with the patient within the sound
field and the reference microphone on top of the ear. When UNDISTURBED is
selected, leveling is performed by holding the reference microphone in front of
the sound field speaker. This selection is only available with a fitting rule selec-
tion of NAL-NL1.
Advanced Real-Ear Menu
Press [NEXT] from the Main Real-Ear Menu to reach this screen.
*AUTO-SCALE—The type of scaling used. ON scales the graph to the selected
curve. OFF scales the graph to the highest curve displayed.
