Otodynamics Otoport Advance, User Manual

Page: 220 / 296

CHAPTER TWENTY
QA area
220
Test Result Description
Artefact? The data collected has met the set OAE Stop criteria
according to the locked Factory protocol.
Artefact? If one band has > 6dB SNR and an absolute signal
level > -5 dB SPL in acceptable conditions OR if two
or more bands have greater than 3dB SNR with an
absolute signal level > -5 dB SPL in acceptable
conditions.
Noisy If Noise is greater than -5 dB SPL in any band.
Poor Probe If the final test stimulus level is outside the stimulus ok
Fit range or if the final stimulus stability value is < 85%.
Cavity OK The data collected is acceptable and in good
environmental conditions.
Incomplete If a user ends the test manually.
If the result Noisy , Poor Probe Fit or Incomplete is achieved, save the
test and retest checking that the probe ear piece is firmly inserted into the
test cavity and that the noise conditions within the room are acceptable
for a test to be conducted. Continue to retest until the result Cavity OK is
given.
If
Artefact?
is shown at the end of the test, save and retest making sure
the ear piece has been firmly pressed into the test cavity.
Consistent artefact or noisy outcomes may be the result of a fault with the
probe, the test cavity or with the Otoport. Check the top of the test cavity
and ensure that it is securely attached to the clear plastic part of the test
cavity. If the resources are available, repeat the test with a different test
cavity and then with a different probe. This will identify which component is
responsible for the problem.
Electromagnetic interference is an ‘invisible’ source of noise, so if there are
persistent problems and other hardware issues have been eliminated, try to
move to another location to perform the tests.
Contact your dealer or Otodynamics for further advice.
QA
area