MedRx AVANT REM (Real Ear Measurement) Training Manual
Effective Date: 05-25-2017
21
Coupler Response
When the REAR is complete, you are prompted to perform a coupler response.
•
Attach the hearing instrument or the insert headphone (
must
be the same as in the REAR test) to the appropriate coupler
and place the probe tube inside the coupler.
•
If a hearing instrument is used, be sure to perform this
measurement at the same volume control setting as the first
measurement.
•
Select
START
to open the measurement type selection
screen.
•
Choose the
Coupler Response
option or Use
Stored
to
skip the measurement (see note below.)
•
Select
OK
and wait until the test completes.
•
The calculated RECD curve is automatically displayed on the
screen and is stored in memory for correction of subsequent
coupler measurements made from the RECD function.
NOTE
: If the REAR and the coupler response were measured with the insert headphone, the
program saves the coupler response curve for later use. In this case to obtain another RECD,
only REAR with insert headphone measurement is necessary. This is possible because the
coupler response does not change provided that
neither the coupler nor the insert earphone
has changed
.
NOTE
: After measuring RECD, it is possible to perform Live Speech Mapping in the coupler as
well. Look for the “Measuring in” option on the LSM screen.
