ReSound Aventa 3 User manual

Aventa 3 User Guide
GUIDE FOR PROFESSIONALS
resoundpro.com
PARTENRSHIPS

2
HOW TO START
GOOD TO KNOW
PRECAUTIONS AND WARNINGS
In this guide you will find:
Every time you fit a client, it’s an opportunity to build your reputation. When
you choose ReSound, we understand the trust you’ve placed in us. We strive
to provide you with flexible, simple-to-fit software so you can make a real dif-
ference in the lives of people with hearing loss.
Airlink .....................................................................................3
Other programming interfaces ..................................................................4
Start screen ................................................................................5
Product selection ............................................................................5
Pre-Fit screen. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Fit screen ..................................................................................6
- Gain Adjustment ........................................................................6
- Advanced Features ......................................................................6
- Beeps and Volume Control ................................................................6
Summary screen ............................................................................7
Feature Demo Animations .....................................................................7
General Precautions..........................................................................8
General Warnings............................................................................9

3
Airlink
ReSound Aventa 3 supports two generations
of Airlink; the Airlink dongle and the latest
Airlink 2.
Both generations offer the great client
experience of wireless fitting and the comfort
it brings.
Being the latest generation, Airlink 2 is the
recommended option of the two. It’s designed
to ensure optimal usage and better usability.
• Place Airlink 2 on the table with a clear
line-of-sight to the hearing instruments,
which should be within a range of 10 feet
(3 metres).
• Avoid placing the Airlink 2 in a USB hub
with other USB devices (e.g. Bluetooth
dongle), as this can decrease the efficiency
of the Airlink 2.
• When fitting hearing instruments inside a
sound booth place the Airlink 2 inside or
close to the booth.
• It is recommended not to use USB cables
between the Airlink 2 and the PC exceeding
a length of 10 feet (3 metres).
Note: If using the Airlink dongle it’s recom-
mended to use a USB hub that places the
Airlink in an upright/vertical position as this
provides for at better signal broadcast.
Refer to the pictures to the left for more guid-
ance.

4
Other programming interfaces
Aventa 3 works with:
• Airlink 2
• Airlink dongle
• Speedlink
• Hi-PRO
• NOAHlink
You can select programming interface on top
of the Start Screen.
Note: Animations in Connection Assistance
will show you how to connect specific mod-
els of hearing aids with the selected program-
ming interface.

5
Product selection
1Product family selection - here you can
view all available products per family.
2Use filters to help you easily find the
most relevant products. For example,
“Audiogram Suitable” is a filter that shows
only products with fitting ranges that cover
your patient’s individual audiogram.
3Fitting range and patient audiogram.
4Technical Information on the selected
hearing aid.
1
2
3
4
Pre-Fit screen
1Counsel on the audiogram using the
hearing loss simulator for a 3rd party
present during the fitting session.
2Perform an in-situ audiogram by presenting
the pure tones from the hearing aids.
3Reconfigure the hearing aid software to
match the actual hardware.
4Display audiogram overlays such as the
speech banana and familiar sounds.
5Have a closer look at how the hearing aids
looks and how it sits on the ear.
1
2
3
4
5
Start screen
1
2
3
4
After launching the Aventa software you will
see the Start screen.
1Select the patient’s experience with hear-
ing aids for an optimized gain prescription.
2Let Aventa recommend the program de-
faults or select them based on your patient
interview.
3Connect to the hearing aids chosen for this
fitting.
4Use AutoFit as the easiest most direct path
to a fitting.

6
Advanced Features
Gain Adjustment
Beeps and Volume Control
1Feature settings are accessed by clicking
“Advanced Features” in the “tools” section.
These feature settings apply to the current-
ly selected program.
2Adjust the features of the hearing aids as
needed.
1Click here to adjust beeps and volume set-
tings.
2In the “Standard Beeps” tab, all the
acoustic indicators can be demonstrated,
changed, added and removed as needed.
Low or high frequency beeps can also be
selected.
3“Manual Controls” tab contains options
such as customizing push button function,
enabling and disabling the program button
and adjusting the volume control range.
1
1
2
2 3
Fit screen
1Adjust gain changes in increments of 1 dB,
2 dB or 3 dB.
2Choose and fine-tune environmental
programs and Wireless program.
3Muting and linking the hearing aids.
4Pair the hearing instruments with wireless
accessories.
1
2
3
4

7
Summary screen
1Confirm number of programs.
2Customize the Clinician report and the
Patient handout, which provides the
patient with useful information.
3Type in notes and they will be printed on
patient’s handout.
4Save options let you select whether to
save data in both the hearing aids and
database, only in one place, or not at all.
1
2
3
4
Feature Demo Animations
Demo animations illustrate the features
available in the hearing aids. You can find the
animations in Help menu.

8
General Precautions i
• This Aventa fitting software will apply recommended amplification settings based on available audiometrical infor-
mation. Settings will be specific to each fitting.
• Manual modification of the fitting parameters will impact and change the amplification level prescribed. This change
will be audible to the patient when the instruments are connected.
• Caution should be exercised with patients sensitive to sounds, for example suffering from tinnitus or hyperacusis.
• Hearing device performance may drift and decline over time, please ensure devices are performing within specifi-
cations prior to performing in situ threshold testing.
• Feature accuracy is reliant on ear canal being completely occluded.

9
General Warnings i
• When connected, the Aventa Fitting Software controls the acoustic amplification levels in a hearing instrument. In
some acoustic environments, over amplification can cause discomfort and damage to the patients hearing.
• The Fitting System provides initial default amplification settings based on hearing threshold levels. These default
settings could be higher than stable levels and cause feedback when amplification is first applied.
• The Fitting System initiates the feedback calibration procedure. Feedback calibration uses broadband noise to
measure the amount of sound leaking from the hearing instrument. The output level is designed to be on the
boarder of “uncomfortable” level based on hearing threshold level at a specific frequency. The sound will be
ramped up in volume and cease when the calibration data is received. It is possible for the level to exceed a pa-
tients comfort level, but it needs to be determined if it can obtain hazardous risk levels.
• The Fitting System initiates feedback calibration to measure the receiver to microphone transfer function. This is
used primarily by the hearing instrument to manage feedback suppression but it is also used to display the limits
of stable gain.
• The maximum stable gain estimates are based on feedback calibration data, the presence of active feedback sup-
pression, and a headroom estimate. The headroom value is meant to be conservative however the presence of
directionality has shown to give inaccurate estimates of max. stable gain. The risk is that, under some situations,
the Fitting System could show that the hearing instrument is stable when it is actually close to unstable and in risk
of feedback.
• If feedback calibration has not been performed during fitting the Max Stable Gain is not known and the device
could cause feedback without warning.
• The Fitting System uses the Audiogram+ algorithm to interpret audio gram data for determining optimal gain set-
tings. The parameter used is “first time user”. This may give a less than optimal initial fitting but should not pose
a safety risk. The algorithm has been independently validated with the specification and verified to be consistent
with Fitting Software.
• The Fitting System uses feedback calibration measurements to compute Max Stable Gain values. These values
are an estimate of the amount of gain that can be safely applied to a hearing instrument be fore it begins to cause
feedback. There is a warning when this gain is reached, and the over gain values are highlighted with bold, red
text. The safety margins give a “close” approximation of the actual feed back border. However, it’s an estimation
and feedback can occur before the warning is given. Sustained feedback on high power devices can damage
residual hearing.
• Warning to hearing care practitioners: Special care should be exercised in selecting and fitting hearing instrument(s)
whose maximum sound pressure level exceeds 132 dB SPL with an IEC 60711: 1981 occluded ear simulator, be-
cause there may be a risk of impairing the remaining hearing of the hearing instrument user.
• Warning to hearing care practitioners: Special care should be exercised in selecting and fitting hearing instrument(s)
utilizing Tinnitus Sound Generator. The maximum output of the tinnitus sound generator feature falls into the range
that can cause hearing loss according to OSHA regulations. For further details please consult the user guide of
the relevant hearing instrument that includes the Tinnitus Sound Generator feature. In accordance with NIOSH
recommendations the user should not use the sound generator for more than eight (8) hours a day when this is set
to a level of 85db SPL or above. When the sound generator is set to levels of 90db SPL or above the user should
not use the sound generator for more than two (2) hours per day. In no case should the sound generator be worn
at uncomfortable levels.
• Children and physically or mentally challenged users will require guardian supervision while wearing the device.

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Tel.: [phone]
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resound.com
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Fax: [phone]
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NEW ZEALAND
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Auckland, 0622
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Fax: (free) 0800 007 695
gnresound.co.nz
AUSTRALIA
GN ReSound Pty. Ltd.
Gate C, 19-25 Khartoum Rd
Macquarie Technology Park
Macquarie Park NSW 2113
Tel.: (free) 1800 658 955
gnresound.com.au
iWARNING points out a situation that could lead to serious
injuries, CAUTION indicates a situation that could lead to
minor and moderate injuries.
Any issues relating to the EU Medical Device Directive
93/42/EEC should be directed to ReSound A/S.
174 619 0 0 - G B -15 .11- R e v. E