otometrics Madsen Xeta, Reference Manual

Page: 57 / 108

Default starting fre-
quency 1000 Hz. You cannot change this value.
If this frequency is not successfully tested, the entire test is aborted. Reinstruct the
patient and try again.
AS Frequencies
• Use the
Frequency
knob to scroll between frequencies.
• Use the Right level knob to set to On or Off . 1000 Hz is always On and cannot
be changed.
AS Familiarize Use the Right level knob to select.
At the start of each frequency a clearly audible tone is presented as an example of
the presented signal. During the actual test, the signal to be presented is reduced
to the predetermined screening level.
Default: 40 dB HL
Range: 40 dB to 60 dB HL or Off
AS Method This setting defines the number of threshold passages that determines the
threshold.
Use the
Right level
knob to set the threshold detection criterion to:
1 of 1, or
2 of 3
AS Level
Use the
Right level
knob to change the starting hearing level.
Min. 0 dB, max. 40 dB HL.
AS Do AT when AS fails Use the Right level knob to select/deselect.
•
On
To include Auto Threshold in the Auto Screening test.
The Auto Threshold test is activated immediately when a frequency fails. The
test returns to Auto Screening when a threshold has been determined for the
specific frequency.
•
Off
AS AT Criterion
This setting defines the number of threshold passages that determines the
threshold. This applies when Auto Threshold is used as a complimentary function at
frequencies where the screening fails. See also the setting
AS Do AT when AS fails
►
57 , to include Auto Threshold in your Auto Screening test.
Use the Right level knob to set the threshold detection criterion to:
1 of 1
2 of 3, or
3 of 5
Otometrics - MADSEN Xeta 57
6 MADSEN Xeta Test Settings