otometrics AccuScreen ABR, Руководство пользователя

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Otometrics
47
Tests
The DPOAE test
The number of frequencies being tested is configurable. See the AccuLink User
Manual.
• If needed, press the
Stop
button to stop the
test. The test will be saved as an incomplete
test.
Test details
Shows which ear is being tested.
Bar chart
The height of the bars represents the noise/response amplitude.
The test frequencies are shown below the bar chart.
The test protocols are configurable (see the AccuLink User Manual).
In a standard DPOAE test the 4 frequencies are
• 5 kHz
• 4 kHz
• 3 kHz
• 2 kHz
where 5 kHz is tested first.
The default PASS/REFER criterion is 3/4, which means that if 3 frequencies have
reached a PASS, the entire test will PASS. The fourth remaining frequency will not
be tested.
DPOAE
Response at current test frequency.
Noise
Current noise level. Make sure the
Noise
level is as low as
possible.
Progress
Shows the test progress. Max. time depends on environ-
mental noise conditions. When the blue bar reaches the
end, the test is completed.
Noise
Registered DPOAE response: Frequency passed
DPOAE frequency being tested, skipped or referred