Asra Curve User Guide V9
27/05/2021
Page
16
of
40
5.3
Installing the Hardware
Operation of the ASRA audiometer is controlled by software running on a Windows based
PC.
The link between PC and Asra Curve is by means of a standard USB cable.
The other connections on the back of Asra Curve, which are essential for its correct operation
are:-
•
Power supply cable
–
check the LED on the front of Asra Curve to show that it is lit when
mains power is switched on.
•
Right (red) earphone plug -
if a booth is used
, link the socket marked right on the back of
Asra to the red socket on the booth and connect the red earphone plug to the
corresponding red socket inside the booth.
If no booth is available
, connect the red plug
directly into the socket marked right.
•
Left (blue) earphone plug -
if a booth is used
, link the socket marked left on the back of
Asra to the blue socket on the booth and connect the blue earphone plug to the
corresponding blue socket inside the booth.
If no booth is available
, connect the blue
plug directly into the socket marked left.
•
Response button plug
–
if a booth is used
, link the socket marked response on the
back of Asra Curve to the black socket on the booth and connect the response
button plug to the corresponding black socket inside the booth.
If no booth is
available
, connect the response button plug directly into the socket marked response.
Operation can be confirmed by pressing the button and checking the response LED lights.
5.4
To Check Installation
•
Close down PC and log on as an ordinary user
•
Check the two Asra icons are on the desktop
•
Double-click on each icon in turn to check that both programs run
•
In the Asra Curve testing program select
New Test
and confirm that the headphone serial
numbers match with the headset plugged into the Asra Curve
•
From the dropdown menu labelled
Test
, select
Manual
, and, put on the earphones and click
the
Tone
button to present a tone
The Tone On light should illuminate and a tone should sound.
If the response button is pressed while the tone is sounding the small cursor on the
screen should become large to show that the response has been accepted, the Tone On
