CHAPTER THREE
Getting started
52
3.7.10
Stimulus and Noise OK indicators (blue LEDs)
The two blue LEDs above the screen on the Otoport give an indication of
whether stimulus and noise levels are acceptable for data collection.
The Stimulus LED is highlighted with an S. It is lit when the stimulus
level recorded by the probe microphone is within the expected range. It
is extinguished if the stimulus is outside range. During testing this is the
range defined in
Test setup
(see chapter
17
).
The Noise OK LED is highlighted with an N. It is lit when the noise level
recorded by the probe microphone is below the noise reject threshold. It is
extinguished when the noise level is above the threshold.
3.7.11
Hard reset
In the unlikely event that the Otoport fails to respond to user control, hold
the On/Off key down for 10 seconds, in order to reset the device. You may
then switch on the device as normal.
Getting started
Summary of Contents for Otoport Advance
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