Widex CLEAR 440 SERIES Assembly instructions

Fitting CLEAR440

2 IntRoduCtIon www.wIdEx.pRo
introduction to this manual
The WIDEX CLEAR™440 hearing aid is fitted using Compass V5.0 or later versions. In this
manual you will find all relevant information regarding fitting CLEAR440 and DEX and
using the new tools available with Compass 5.0 and later.
The manual is divided into chapters, each describing areas important for fitting
CLEAR440 – wireless options, fine-tuning options, new program options, additional op-
tions and changes in the rationale behind the fitting.
In each chapter dierent functionalities are described with reference to their audiological
and technical background as well as their performance and usage.
Seven supplementary quick guides have also been produced for quick reference to vital
CLEAR440 and DEX fitting procedures.

3
ovERvIEw
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thE foLLowIng sECtIon pRovIdEs An overview of
thE various chapters In thIs manual.
In this chapter, the use of wireless fitting without fitting cables is described in detail, introducing the
nEARcom as well as the USB Link option. This chapter also focuses on the audiological background of
the new InterEar features available with CLEAR440, describing the concept of the InterEar Speech En-
hancer, InterEar TruSound Compression and several other InterEar features.
With CLEAR440 a range of DEX accessories is also available, and this chapter describes the function-
ality and fitting procedure for the dierent DEX accessories.
Hearing aid fine tuning is dependent on the hearing aid user’s experience with the hearing aids in vari-
ous listening situations. With CLEAR440, a range of new fine-tuning tools is available for the hearing
care professional. To achieve the optimum opportunities when fine tuning gain, a 15 channel gain set-
tings panel is introduced. New options are also available when working with acclimatisation and the
new audiological features in CLEAR440.
CLEAR440 oers a range of new program options, ensuring a wider choice for the hearing care pro-
fessional when working to secure optimal use of CLEAR440 hearing aids in all listening situations. With
InterEar Zen, new options are available when fine-tuning a Zen program.
To support the hearing care professional in the fine-tuning session, the Solution guide has been refined
with CLEAR440. Fitting CLEAR440 binaurally will oer the client a range of InterEar functionalities,
and two CLEAR440 hearing aids fitted together will automatically include these options. Some clients
are originally only fitted monaurally, but will later want to start using binaurally fitted hearing aids. The
process of establishing a pair of CLEAR440 hearing aids is supported by Compass to make it easy and
intuitive to the hearing care professional.
Other options mentioned in this chapter are the Service Reminder and how to protect the fitting using
a safety code in Compass.
Assessment of in-situ acoustics (AISA) is a concept used in the fitting of Widex hearing aids to ensure
fitting precision. AISA is continuously developed, and the final chapter explains the reasoning behind
AISA III. More information on AISA can be found in WidexPress 24.
Chapter 1: CLEAR440 – wireless options – Page 4
Chapter 2: CLEAR440 – New fine-tuning options – Page 13
Chapter 3: New program options with CLEAR440 – Page 24
Chapter 4: Additional options when fitting CLEAR440 – Page 31
Chapter 5: Rationale changes affecting the fitting – Page 37

4 CLEAR440 – wIRELEss optIons www.wIdEx.pRo
ChAptER 1:
clear440 – wireless options
Wireless fitting
• Hassle-free fitting method for both the hearing care professional and
the client.
• A choice between involving the client in the initial detection procedure
and performing the procedure without involving the client.
• Wireless fitting with industry standard hardware – the nEARcom -
which also supports fitting with cables.
wIRELEss Fitting
Fitting CLEAR440 hearing aids is as simple and
easy as fitting any other Widex hearing aid. The
illustrative and intuitive Compass software will
guide the hearing care professional throughout
the fitting procedure as well as subsequent fine-
tuning sessions and counselling.
Like for all other Widex hearing aids, perform-
ing five basic fitting steps will ensure an opti-
mum fitting for every client:
• Pre-fitting considerations based on client info
and possibly individual data measurements
like in-situ RECD
• Performing the Sensogram
• Performing the feedback test
• Setting hearing aid options according to client
wishes and needs
• Administer post fitting counselling and pos-
sible fine tuning
With CLEAR440 the practical
implications of fitting the cli-
ent have been drastically im-
proved. Introducing Wireless
fitting, the hearing care profes-
sional no longer has to concern themselves with
the physical cable connection between the fit-
ting software and the hearing aids. This connec-
tion is now established wirelessly to the benefit
of both the hearing care professional and the
client.
Without the need for cables and connecting
adaptors, CLEAR440 can be fitted using only a
wireless connection established with the appro-
priate hardware - the nEARcom.
When using the nEARcom hardware, oth-
er hearing aid products from both Widex and
other manufacturers can be fitted using cables
connected directly to the nEARcom.

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CLEAR440 – wIRELEss optIons
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wIRELEss detection
All CLEAR440 and more recent hearing aids
with wireless technology from Widex are always
fitted wirelessly using the WidexLink technol-
ogy to establish the connection to the hearing
aids.
With the fitting software (Compass V5 or a later
version) the hearing care professional is guided
through the important steps of detecting the
hearing aids chosen for the client and establish-
ing the connection for both the right and left
hearing aid.
This can be done by the hearing care profes-
sional before the client’s visit or together with
the client as the first thing in the fitting session.
Each hearing care professional will have their
own preferences as to which method to use,
but may also base the decision on information
about their client.
• Involving the client in the detection procedure
can be an advantage when the client is able to
co-operate. When hearing the sound to iden-
tify the hearing aid, the client must indicate
whether the hearing aid is left or right.
• Performing the detection procedure before
meeting the client can be an advantage when
the client is not able to co-operate, for exam-
ple if they are hard of hearing or the client is
a child.
perForming A wIRELEss
Fitting
Performing a wireless fitting requires Compass
V5, hearing aids with wireless technology from
Widex and the nEARcom with a Widex Tech
Module.
To get it right from the start with wireless fitting
you connect NOAHlink to the nEARcom and
choose the nEARcom as Interface in the Setup
menu in Compass.
It is also recommended that the hearing care
professional colour-mark BTE hearing aids to
identify left and right. You are now ready to
perform the detection procedure in Compass.
Detection procedure
To detect the hearing aids in Compass, the hear-
ing care professional has to place the nEARcom
either on a table or around the client’s neck. The
Detection guide describes both methods.
Fig. 1: The detection procedure with the nEARcom on a
table.
When the hearing aids have been placed in the
middle of the neck loop or on the client’s ear,
the hearing care professional is ready to start
the detection procedure. Please follow the quick
guide and learn how easy this procedure is.
When the hearing aids are detected and identi-
fied, the hearing care professional can proceed
with the fitting process in Compass as usual.
Detect hearing aids as follows:
1. To identify hearing aids, make sure they are
placed in the middle of the nEARcom neck
loop and then use the Play buttons under
Identify HA. When you select a Play button,
the relevant hearing aid plays a sound for 6
seconds and in some models a light-emitting
diode lights up.
2. While this is happening, remove the hearing
aid from the nEARcom and listen to it.
3. In Compass, select whether the hearing aid is
for the left or right ear.

6 CLEAR440 – wIRELEss optIons www.wIdEx.pRo
4. Repeat the procedure if you are fitting two
hearing aids.
5. Click Next to connect the hearing aids.
6. Select a starting point and make sure the
acoustic identity is correct.
7. Position the hearing aids in the client’s ears
and the nEARcom around the neck of the
client.
USB Link
With the new WidexLink wireless technology,
Widex also introduces a new hardware concept
in fitting – the Widex USB Link.
Using the Widex USB Link enables fitting of
CLEAR440 hearing aids using an intuitive and
easy hardware solution without the need for
NOAHlink. The Widex USB Link has a standard
USB plug and connects directly to the fitting
computer.
For those hearing care professionals who are
not familiar with the use of NOAHlink as fitting
interface, the Widex USB Link is an easy alterna-
tive when fitting Widex wireless hearing aids.
Fig. 2: The detection procedure with the Widex USB
Link.
The detection procedure is the same as with the
nEARcom. The hearing care professional just
has to choose the Widex USB Link as interface
in the Setup menu in Compass.

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CLEAR440 - designed to
coordinate And synchronise
It is well known that one of the major diculties
for people with hearing loss is to determine the
direction of a sound source. Using two hearing
aids fitted in a balanced matter has up till now
been the preferred suggestion on how to elimi-
nate this problem. The C-ISP platform support-
ing the CLEAR440 hearing aids supports the
coordination and synchronisation of important
features relevant for precisely this task.
WidexLink – accurate and frequent data
transmission
Due to the accurate and very frequent data
transmission between two CLEAR440 hear-
ing aids, important cues for preserving a more
natural perception of the environment are sup-
ported. This includes the coordination of com-
pression and speech enhancement, as well as
volume and program synchronisation.
InterEar TruSound compression -
Coordination of compression
By coordinating the compressors of two
CLEAR440 hearing aids the important Inter-
aural Level Dierence (ILD) is preserved. The
ILD is used by the brain to place sound sources
correctly in the horizontal plane. The Interaural
Level Dierence arises because of the shadow
eect of the human ear. For a normal hearing
listener, the level of a sound reaching the right
ear will be higher at the right eardrum than at
the left eardrum because of the head shadow
eect. Coordinating the compressors of two
hearing aids with InterEar TruSound compres-
sion allows the normal ILD to be maintained.
Fig. 3: Displaying the ILD without hearing aids (normal),
with uncoordinated hearing aids and with coordinated
hearing aids.
Level at eardrum
Normal Coordinated
ILD = normal
Uncoordinated
ILD = normal
ILD ≠ normal
Left Right Left Right Left Right

8 CLEAR440 – wIRELEss optIons www.wIdEx.pRo
InterEar Speech Enhancer
The Speech Enhancer in CLEAR440 is continu-
ously coordinated to support the hearing im-
paired client’s ability to direct focus to a speak-
er speaking from the side of the listener. This
could be of great importance in a noisy environ-
ment. See Fig. 4.
When working as a coordinated feature, the
Speech Enhancer will have access to knowledge
on the location of the dominant speaker, allow-
ing it to activate a fast acting gain mechanism
that supplies extra gain in speech important fre-
quency areas to support best possible speech
intelligibility.
In a CLEAR440 fitting, the coordination of com-
pression and speech enhancement is a default
feature setting for best possible utilisation of
the wireless possibilities of CLEAR440.
Supporting coordinated sound processing
Maintaining coordinated sound processing be-
tween two hearing aids in real life situations is
one of the main scopes of CLEAR440 hearing
aids. But inappropriate use of the volume con-
trol and program shift can interfere with this
coordination. CLEAR440 therefore introduc-
es Volume Sync and Program Sync to support
the coordination of sound processing. A pair of
CLEAR440 hearing aids fitted with coordinat-
ing features will this way continue to work as
intended, also in daily life. Changing volume on
one hearing aid means same volume change on
the other hearing aid. Changing program on one
hearing aid means also changing program on
the other hearing aid.
Further possibilities with WidexLink
With the accurate and frequent data transmis-
sion obtained with WidexLink, coordination of
other CLEAR440 features is also an option. Us-
ing an extra set of data, a pair of CLEAR440
hearing aids are able to determine the presence
of feedback and take action to actively cancel a
feedback signal. When fitting CLEAR440 hear-
ing aids, this coordination is enabled by default
to manage feedback as eciently as possible.
Fig. 4: The InterEar Speech Enhancer works as a coordinated feature and supports the ability to
direct focus to the dominant speaker.

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InterEar Zen
For clients using the Zen feature WidexLink
oers a unique possibility of distributing the
Zen tones over two hearing aids. In a pair of
CLEAR440 hearing aids, each Zen style will by
default be chosen to be the same on both hear-
ing aids and the tones in each individual style
will be distributed over the two hearing aids to
create a stereo-like eect.
The InterEar partner monitor
CLEAR440 features the InterEar partner moni-
tor – allowing a lost partner alarm to be acti-
vated whenever the connection between two
CLEAR440 hearing aids is lost. If the user loses
his hearing aid, for instance on the golf course,
the InterEar partner monitor that surveys the
coupling between the two hearing aids will alert
the user by means of the SmartSpeak message
“Partner Check”. Simultaneously a LED in the
two hearing aids will start flashing1.
The lost partner alarm can be activated under
Acoustic indicators in the HA configuration win-
dow under Finalise.
Adjusting InterEar functionalities
The InterEar functionalities are by default ena-
bled in binaural fittings. If needed, the function-
alities can be disabled in the InterEar configura-
tion panel. See Fig. 5.
Some of the InterEar functionalities are linked
to each other. If you disable Program selection,
please be aware that Compression, Noise reduc-
tion, Feedback cancelling, and Zen are disabled
too.
The hearing care professional can activate the
Lost partner function under Acoustic indicators.
Please notice that the InterEar icons in the Fine
tuning window do not indicate whether the
functionalities are activated or not. See Fig. 6
Fig. 5: The InterEar functionalities are found under Finalise and HA configuration.
Fig. 6: The InterEar icons indicate the association between the InterEar functionalities and the feature.
1 In C4-PA, C4-m, C4-m-CB and C4-FS

10 CLEAR440 – wIRELEss optIons www.wIdEx.pRo
deX ACCEssoRIEs
With CLEAR440, a new product concept from
Widex is introduced – the DEX.
RC-DEX: compact remote control
TV-DEX: for TV-viewing
M-DEX: for mobile phone use and
advanced remote control
For people with hearing loss, situations like
watching TV, talking in a mobile phone or lis-
tening to sound from, for instance, the comput-
er can be dicult despite appropriately fitted
hearing aids, and many therefore choose to use
assistive listening devices.
With assistive listening devices like teleloop sys-
tems or other systems able to transmit audio
from an external sound source and into hearing
aids, the importance of sound quality must not
be overlooked. Sound quality will be reflected
not only in the bandwidth of the transmitted
signal but also in whether or not the signal is
transmitted in stereo and if the signal transmis-
sion is delayed compared to a direct signal.
Teleloop systems are bandwidth restricted to
approximately 5 kHz and sound is transmitted
in mono. For other transmitting systems based
on digital wireless transmission, bandwidth var-
ies and the signal is most often transmitted in
mono. Furthermore, many of such systems in-
troduce a delay to the transmitted signal result-
ing in reduced sound quality, for example hol-
low sound or echoes.
With DEX Widex introduces a product concept
targeted at specific situations. An M-DEX for
mobile phone use; with options for receiving
calls, ending calls and controlling volume and
programs, a TV-DEX for the TV situation - trans-
mitting sound EchoFree™ in the bandwidth from
100 Hz to 11 kHz2 and in stereo. Furthermore the
RC-DEX is introduced – a compact dedicated
remote control with access to program toggle
and volume control.
DEX – reflecting user requirements
The DEX products are designed to meet two
fundamental user requirements:
• Ease of use
• High sound quality
The main purpose of the DEX products is to
make the user interface easy and intuitive – by
minimising confusion and time on the learning
curve. An aim is that the DEX devices should re-
act in a manner that is predictable as well as un-
derstandable for the user.
RC-DEX
Due to its compact and small size, the RC-DEX
is easy to carry in a pocket. Young people or
people in active employment may find the RC-
DEX discreet to use.
The RC-DEX is a user-friendly remote control for
adjusting volume or changing programs. The
keys are easy to manipulate, making allowance
for users with reduced dexterity.
2 Model dependent