14
Testing Procedure
1) Instruct the patient to raise his/her hand or press the patient response button
(if available) whenever a tone is heard.
2) Position the headphones over the patient’s ears (Red over Right ear, Blue
over Left ear).
3) Press {2} if necessary to toggle to the desired test ear.
4) Select the test frequency using the {◄} / {►} keys.
5) Use the {▲} / {▼} keys to adjust the hearing level and the {Ο} key to
present the stimulus to the selected ear. When testing with Continuous
signals, stimulus duration should be about 1 second; the minimum
duration allowed is 200 ms.
6) Continue using the {▲} / {▼} and {Ο} to present stimuli consistent with the
test paradigm being used (typically Hughson-Westlake) until threshold is
determined.
7) Use the {◄} / {►} keys to select the next frequency to test.
8) Repeat steps 4 through 7 until threshold has been determined for each
frequency for the selected ear.
9) Change the test Ear by pressing {2}.
10) Repeat steps 4 through 8 until threshold has been determined for each
frequency for the second ear.
Manual Audiometry Options
Frequency Selection
Note that the set of test frequencies selected for manual audiometry will also be
used during automatic threshold testing. By default the frequency set includes
250, 500, 1000, 2000, 3000, 4000, 6000, and 8000 Hz, plus the 1k/Validity check.
The 1k/Validity check is mainly used during an automatic threshold exam, but can
also be tested during a manual exam if desired.
The frequency set to be used for manual or automatic threshold testing may be
viewed or modified via the menu sequence ⌐S
ETUP ⌐AUDIOMETRY SETUP
⌐FREQUENCIES. The display will show the list of available test frequencies and
there will be a check mark (√) next to the ones currently selected for testing. Use
the {►}, {▲}, {▼} and {◄} keys to move the highlight to a frequency to select or
deselect for testing, and press {Ο} to toggle between ‘selected’ and ‘deselected’.
Repeat this process as necessary to select or deselect other frequencies.
Once selections are completed, press {Menu} to exit frequency selection mode
and return to the menu system.
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