audioscan verifit, User Manual

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Verifit
®
User's Guide Version 4.8 © November 2016
2. Select [Transducer], then choose from the list.
3. Click [REUR] to toggle selection.
Measured REUR should be used with a sound field threshold because individual REUR is part of the threshold.
Average REUR should be used with headphone or insert phone thresholds because individual REUR isn’t part of
these thresholds.
4. When all selections have been completed, press .
5. Enter HL threshold values using a mouse. Left click the mouse on the audiogram form to enter a point. Click
again to delete the point.
6. Press when all points have been entered.
The HL for the highest frequency is used for aided targets at higher frequencies.
REUR measurement procedure
Performing a REUR test erases all existing REAR and REIG data associated with the current test ear. REUR
should be measured only if Transducer = Soundfield. Otherwise it is more accurate to use average. See
Audiometric data entry.
1. Click the right mouse button and then select [Insertion gain]
2. Referring to On-Ear Measures - Setup and On-Ear Measures Screen Setup, prepare the system, position the
patient and insert the probe tube.
3. If REUR is set to Average, select [Audiometry] then click [REUR] to toggle to [Measure]. Press to
advance to the Threshold entry poster. You may enter threshold data at this time (see Audiometric data
entry) or press
to proceed with the measurement.
4. Click REUR (below REAR/REIG test 3).
5. Press to accept the default 55 dB SPL Pink noise stimulus and capture the REUR curve OR select
[Stimulus] and [Level] to select other values. These choices have no impact on the resulting REIG.
6. If there is a notch in the 4000 to 8000 Hz region, try advancing the probe tube 2 mm and repeating step 3. If
the notch moves to a higher frequency, repeat this step until the notch moves beyond the highest frequency
of interest.
Because it is analyzed in 1/3 octave bands, the Noise stimulus produces a REUR 12 dB below that produced by
the Swept stimulus at the same overall level.
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