Interacoustics AC40 - Page 29

AC40 Instructions for Use - US Page 25
Hughson-Westlake Test
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 a certain level in a 5dB increase and a 10dB decrease test
procedure.
Function Key
Description
10
Show traces
11
Select othe ars25y
12
Test high frequencies
15
Single Freq test
16
Start test. Tests all frequencies.
17
Stop test.