Automated Test Sequences 103
• You can view the numerical data results by entering the local menu by
pressing [MENU] and setting DATA/GRAPH to DATA by using the arrow
keys. Close the local menu by using [EXIT] or [MENU] again. Test results
will now be shown in tabular data format.
• You can turn this test off by toggling the test status with [F6]. If the
mA/Ampl graph is not displayed, it will not be measured when [Start] is
pressed.
• Use [F1] to switch between left and right ear. Test results for each ear can
be temporarily stored. (All data is lost when the analyzer is turned off or
when the [RESET] button is pressed.)
4.3 Coupler I/O
The Coupler I/O Test measures the input/output of the hearing aid from 50 dB
SPL to 90 dB SPL in 5 dB steps. Test results are shown in both graphical format
and numerical format and can be displayed in either Gain or SPL (Output). See
Figure 4.3.
To enter the Coupler I/O screen, press [F5]—Other Tests from the Opening
screen. Then press [F2]—Coupler I/O. Press [START] to run the I/O test.
By default, this test is done with a puretone stimulus at 2000 Hz. The frequency
of this stimulus can be changed by using [
<, >]. You can also toggle the source
type between Puretone and Composite by using [F5]. (The frequency selection is
only available when the source type is set to Puretone.)
Figure 4.3—I/O Test
To Next Page
Loading...