Nal-Nl2 Settings - Interacoustics Affinity 2.0 Additional Information

2.0
Affinity Additional Information
2.6.4.2

NAL-NL2 Settings

1) Default Prescription:

NAL-NL2.
2) Transducer:

Choose the type of transducer used for the audiometry. Select between Head phone, Insert,
Insert + mould, Sound field 0 deg., and sound field 45 deg. This will affect the threshold
indications and thereby the target calculation.
Note: It is important to choose the correct settings in this dropdown. E.g. if your audiogram is
done in head phones but inserts are selected as transducer, no target will be calculated.
3) Hearing Instrument Style:

Select the type of hearing aid the client is fitted with. Choose between Behind the ear, In the
canal, In the ear, and Completely in the canal. This will add a correction to the measurement
during RECD based verification in the test box.
4) Hearing Aid Type:

Choose the type of amplification. Select between Linear and Nonlinear using the check boxes.
5) Tubing:

Select the hearing aid tubing. Choose from Libby 4, Libby 3 , #13, Thin Tube, RITC (receiver in
the canal)
6) Limiting:

Set the limiting to Off, Wide-band, and Multi-band. Multi-band will automatically be selected as
standard.
Note that limiting information regarding individual hearing aids may be found in the
manufacturers' specification sheets or by contacting the manufacturer.
7) Compression Speed:
 Compression speed is used for determine the compression ratio which is lowered for fast acting
compressions for severe/profound hearing losses (making the fluctuations in the signal more
obvious) for this group of users.
Select between Slow (<50ms), Dual (Intermediate or dual/adaptive compression), or Fast
(>300ms).
8) Orientation for REUR/REUG:

If using a predicted REUR/REUG select the orientation. Choose between 0 Deg, 45 Deg. using
the check boxes. 90 Deg is not available for NAL-NL2
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