User guide
ELI
O
S
ECH001XN111-A4 – 07/2022
39
Introduction and test setup
3.6 Otoacoustic emission (Shift-OAE, DP-gram and TEOAE)
3.6.3
TEOAE
TEOAE :
Transient otoacoustic emissions.
When we speak about otoacoustic emissions, we primarily think about the transient otoacoustic emissions also called
TEOAE which are most used in clinical examination. The OAE are recorded by a small probe placed in the external ear
canal. The detection of transient otoacoustic emissions (TEOAE) is a real asset in the battery of audiometric tests.
The TEOAE are otoacoustic emissions per click, that is to say that we will test the patient ear at frequencies between
2000 Hz and 4000 Hz. The result is represented by a curve that indicates if the otoacoustic emissions are present or not.
This is an objective test because it does not require the cooperation of the patient.
This test is very important, especially in the examination of newborns, because if otoacoustic emissions are present it
means that the newborn hearing does not have a deafness higher than 30-40 dB. This is a routine screening test, more and
more used in the newborns examination.
3.6.4
Equipment
To make otoacoustic emissions
measurement, you will need the following equipment:
ELI
O
S
unit
OAE
probe
OAE ear tips T04 tree
or
OAE partis Txx (xx size in mm)
3.6.5
Setup
•
Connect the
Mini-DIN
plug of the
OAE
Probe
to the
«Audio»
connector of the
ELI
O
S
unit.
