3.3.1 Using the Slider Bar
To proceed with the VeriPRO test, the user moves the slider bar
up and down to adjust the loudness of the left ear until it matches
the reference tone in the right ear. When volume in the left ear
and right ear match, press MATCH.
• To extend the range of the slider bar higher or lower, press the
double-arrows at the top or bottom of the slider bar. Note that
the double arrows flash red when the slider bar range has been
extended.
• If user cannot match the loudness of the tones, press CANNOT
MATCH and click on the appropriate remark.
Remark
Effect
I couldn't hear the
Clicking on this choice adjusts the dB range 10 dB
sound in my left ear.
higher in the left ear.
I couldn't hear the
Clicking on this choice ends the test, since the
sound in my right ear.
subject cannot hear even the reference tone. To
correct this, the System Operator should adjust the
Reference Ear Level in the Both Ears Unoccluded
section of Preferences.
I couldn't hear the
The test ends, similar to above.
sound in either ear.
Sound in my left ear
Clicking on this choice re-adjusts the scale on the
is softer than in my
slider bar 10 dB higher.
right ear.
Sound in my left ear
Clicking on this choice re-adjusts the scale on the
is louder than in my
slider bar 10 dB lower.
right ear.
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3.4 Quick Check
The Quick Check mode is a fast screening check of the earplug fit.
It is ideal for earplug selection, training and periodic testing. It
uses the same test procedures as the Complete Check mode, but
only tests at one critical frequency: 500 Hz. If an earplug is fit
poorly enough to allow noise to easily leak through, this always
shows up at 500 Hz.
The Quick Check leads the user through the same three parts:
loudness balance with no earplugs, with earplug in right ear only,
and with earplugs in both ears. Due to testing at only one
frequency instead of five frequencies, the test is completed much
more quickly – usually in three minutes or less for most users –
but is not as accurate as the Complete Check. The result of the
Quick Check is simply the attenuation of the earplug at 500 Hz.