User guide
ELI
O
S
ECH001XN111-A4 – 07/2022
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Handheld mode measurement
4.8 TEOAE
4.8
TEOAE
to obtain the necessary instructions about the needed equipment and the setup.
4.8.1
Measurement settings
Once the clinical
TEOAE
diagnosis type has been se-
lected its configuration window appears. It is a way of
adjusting the parameters appearing in the following ta-
ble.
Power(dBSPL)
Adjust the intensity of the acoustic stimulation
Advised : 82dB
Number of stims
Set the necessary average to acquire a point
Advised: at least 1000
Click / Second (Hz)
Number of clicks made per second
«Screening»
Enable screening mode. See subsection
Settings
Access to the advanced parameters about the validation in "Screening"
mode. (See subsection
Left/Right
Select which ear to test
After selecting the ear (right or left) and plugged the
OAE
Probe, the
«Start»
button became available. Click on it to
start the measurement.
4.8.1.1
Measurement
The
TEOAE
measurement window opens, click on
"
Start
".
At the measurement beginning, click calibrations are performed automatically to determine if the measurement con-
ditions are optimal to obtain usable results. In this context, the system inform the user that the conditions are not good:
•
"Low signal. Check leak. Continue?"
: The click signal is to low compared to his set value (at least 5dB to low).
This may be due to the wrong positioning of the probe, more precisely a sealing problem between plug’s probe and
the ear canal. It is advised to click on
“No”
, reposition the probe and restart the measure. However, if you are sure
of the probe’s positioning, it is possible to continue by clicking
“Yes”
.
•
"Too much signal, Check eartip. Continue?"
: The click signal is to strong compared to his set value (at least
This first step of the measurement is a self-calibration which last few seconds (2 or 3 seconds). During
this first step, the surrounding noise must be kept as low as possible.
