User guide
BABYS
C
REEN
ECH001XN121-A4 – 07/2022
32
Chapter 4. Otoacoustic emission (TEOAE and DP-gram)
4.4 TEOAE
•
On the left side:
o
The rejection indicator light notifies you when the rejection threshold is reached. This phenomenon indicates
that the patient moves or, in common way, that there is too much noise. When the noise will go down, the
measure will automatically resume
o
Indicator of the stimulation quality: in a good measurement condition, the gauge should be green and half
filled. If the gauge moves or change of color, this is because of a bad positioning of the probe, or a clogged
probe.
•
The graph show :
o
In the left part, the shape of the stimulation
o
In the central part, the two buffer (A and B) that are currently recorded.
•
At the bottom of the screen:
o
The number of clicks, which informs you of the progress of the measurement, the sum of the two buffers (A
and B) must reach the number of stimulations entered in the configuration window.
o
The correlation between the A and B buffers
o
Number of rejections for each buffer
o
Detection analysis, which works only in detection mode. It shows how many frequencies have been validated
or how many statistical criteria have been satisfied, depending on the validation mode chosen. (See subsection
The "
Stop
" button stops the measurement prematurely but the data is not lost, you will be able to consult the meas-
urement. You then have the choice of saving the data by clicking on "
Save
" or deleting it by exiting from the window
using the back cross.
mode the device stops the measurement when the validation criteria are satisfied. On the other hand, if the maximum
test duration is reached, the measurement is stopped and the device indicates a non-conclusive test.
Rejection indicator
Stimulation curve
Stimulation quality
indicator
Number of click done for
each buffer
TEOAE response
area
Buffer A curve
Correlation between buffer
Number of rejections
per buffer
Validation analysis
Buffer B curve
If the click shape doesn't look like the above illustration (sinusoid amortized on a few oscillations) check
the probe position in the ear then restart the measurement.
