Otoport OAE+ABR
User Manual for Otoport DP+TE model
95
ABR test procedure
Test timeout
If a test has not met the set pass criteria then the test will stop after 10240
sweeps have been collected, or after 10 minutes.
Noise target reached
If the residual noise in the averaged test (ABR Noise) becomes so low that
any ABR present would already have been detected, then further testing is
redundant, so the test is ended.
Probe t lost or high acoustic noise
If the ‘Check Probe Fit’ or ‘Noisy’ messages (see 10.3.3) are displayed for an
extended period, the test will automatically stop.
Manual end
Selecting End at any time will stop the test.
10.4.7 Test results
The following table lists all possible test results with the associated result
graphic and gives an explanation of the circumstances under which each
result would be shown.
Test Result Description
ABR Pass The data collected has met the pass criteria.
A clear ABR has been found.
Note: Optimum pass criteria will depend on your
application, e.g. screening or clinical
measurement (see
10.3 Test settings).
Note: One of the following will be shown if a Pass is not obtained.
No Valid ABR The data collected has not met the set pass criteria
and the test conditions were acceptable. In infant
screening, this result supports referral for
audiological investigation.
Noisy There was too much acoustic noise to test. The
‘Noisy’ message would have been displayed during
testing (see
7.3.4).
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