Interacoustics AA222 Instructions For Use Manual page 52

AA222 Instructions for Use – US
3.7.1.8 Auto: Hughson-Westlake
Hughson-Westlake is an automatic pure tone test procedure. The threshold of hearing is defined as 2 out of
3 (or 3 out of 5) correct responses at threshold level in a 5dB increase and a 10dB decrease test procedure.
Function Key
A
B
C
D
E
Description
Toggles between showing and hiding the trace.
When activated, the patient can get familiarized with the testing procedure
without data being part of the recording.
When pressed the currently selected frequency is tested. The test starts
immediately when pressed.
Press the play button to start the test for all frequencies.
Pause
Stop
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