Smoothing A Curve; Comparing Curves - Interacoustics Affinity 2.0 Additional Information

2.5.14 Smoothing a curve

Smoothing is a technique where small details in the curve appear to be ironed out. As these details
sometimes have a noisy character, smoothing may be pref erred. The individual tests can be designed to
have smoothing applied in the REM440 setup.
Smoothing is applied according to a n/12 octave smoothing method. Whereby the lower smoothing value
delivers a higher curve resolution due to inclusion of more data points.
Smoothing can also be applied af ter measuring in two ways:
Shif t + up/down arrow keys on the PC keyboard

Shif t + the scrolling wheel on the mouse

Examples:
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2.5.15 Comparing curves

The REM440 also allows f or comparing either two historical curves (e.g., two REIG curves) or comparing a
historical curve to a currently recorded curve. This may be helpf ul when having adjusted a hearing aid to see
if the new setting is closer to the target. It may also be helpf ul if f itting two different hearing aids to see which
one matches the target better.
Note: The Age dropdown list in the Fitting Prescription will not change when going into a historical session.
However, target inf ormation viewed in the historical session will be based on the audiogram used when the
session was saved.
Compare curves as f ollows:
1. Find the f irst curve in the Session list. Historical real-ear measures are listed by date and time when
saved.
2. Press Toggle between lock and unlock the selected session
3. Find the second curve in the Session list. This can be either a curve of the current session or a
historical curve.
D-0004576-Q – 2022/05
Affinity/Equinox2.0 – Additional Information
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