device customization, an extensive User Menu is available for advance users
(see Chapter 7).
Functionality of Operating Elements
The following table describes the main functions of each button for the tone
and speech audiometry screen:
Figure 3 - Control Panel MA 42
(1) Level control: adjusts the signal level for the left/right ear.
(2) Stim button: presents or interrupts the signal for the left/right ear.
(3) Store button: stores results for the left/right ear or no response if button
is pressed for 3 seconds.
(4) Frequency Up: change to higher frequency for tone audiometry, enters a
correct answer for word recognition score (WRS) testing, or selects the
next word in the word list for speech recognition threshold (SRT) testing
when the internal Wave files are used.
(5) Frequency Down: change to lower frequency for tone audiometry,
enters an incorrect answer for WRS testing, or selects a previous word in
the word list for SRT testing when the internal Wave files are used.
(6) Monitor: allows adjustment of monitor levels and talk back level. In the
speech screen, the input calibration for microphone or CD player can be
adjusted.
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