Interacoustics affinity 2.0 Installation manual

Additional Information
Affinity2.0/
Equinox2.0
Science
made
smarter
D-0004576-Q – 2022/05

Table of Contents
1AC440 .............................................................................................................................. 1
1.1 About AC440 module..................................................................................................... 1
1.2Launching AC440 .......................................................................................................... 2
1.2.1 Launching from OtoAccess® ....................................................................................... 2
1.2.2 Launching from Noah.................................................................................................. 2
1.2.3 Using the tone screen ................................................................................................. 3
1.3 The speech scr een elem ents ......................................................................................... 9
1.3.1 Speech audiometry in graph mode............................................................................. 12
1.3.2 Speech audiometry in table mode.............................................................................. 17
1.4 Binaural speech........................................................................................................... 19
1.5 Full 2(4) channel speech in noise ................................................................................ 20
1.6 Counselling tab ........................................................................................................... 22
1.6.1 SoundStudio............................................................................................................. 22
1.7 Clinical application of the AC440 tests ........................................................................ 23
Air conduction audiometry ..................................................................................................... 23
1.7.1 High frequency audiometry........................................................................................ 25
1.7.2 Multi f requency audiometry........................................................................................ 26
1.7.3 Bone conduction audiometry ..................................................................................... 26
1.7.4 Masking 27
1.7.5 Speech audiometry ................................................................................................... 28
1.7.6 Masking level diff erence (MLD).................................................................................. 35
1.7.7 Master hearing aid (MHA) ......................................................................................... 37
1.7.8 Hearing loss simulation (HLS).................................................................................... 39
1.7.9 Short increment sensitivity index................................................................................ 40
1.7.10 Weber .................................................................................................................. 41
1.7.11 Knaster .................................................................................................................. 42
1.7.12 ABLB/Fowler ............................................................................................................ 44
1.7.13 Stenger test.............................................................................................................. 45
1.7.14 TEN test .................................................................................................................. 47
1.7.15 QuickSIN.................................................................................................................. 47
1.7.16 Tone decay17............................................................................................................ 49
1.7.17 ANL test18 ................................................................................................................ 52
1.7.18 SIQ test .................................................................................................................. 57
1.7.19 SIN test .................................................................................................................. 59
1.7.20 VDB-express ............................................................................................................ 61
1.8 Working with individual setups (test protocols) .......................................................... 64
1.8.1 Selecting a test protocol: ........................................................................................... 64
1.8.2 Creating new protocols.............................................................................................. 65
1.8.3 Finishing the test protocol.........................................................................................114
1.8.4 Changing a test protocol permanently .......................................................................114
1.8.5 Changing a test protocol temporarily .........................................................................115
1.8.6 Importing and exporting test protocols.......................................................................116
1.9 General setup .............................................................................................................118
1.9.1 Symbol editor..........................................................................................................119

1.9.2 Noah database settings............................................................................................120
1.9.3 Tone and speech settings ........................................................................................120
1.10 General suite settings and examiner ..........................................................................121
1.10.1 Start-up .................................................................................................................121
1.10.2 Examiner settings ....................................................................................................121
1.10.3 Languages ..............................................................................................................122
1.10.4 PDF print.................................................................................................................123
1.10.5 NOA H comment ......................................................................................................124
1.11 Password protection ..................................................................................................125
1.12 The AC440 menu items...............................................................................................126
1.13 PC Shortcut manager .................................................................................................128
1.14 Standalone database settings ....................................................................................129
1.15 View data without license ...........................................................................................129
1.16 FAQ ............................................................................................................................131
1.17 Appendix 1 .................................................................................................................133
1.17.1 Audiometer implementation of the TEN(HL) test for diagnosing cochlear dead regions.133
1.18 Appendix 2 .................................................................................................................140
1.18.1 Masking help/automasking quick guide .....................................................................140
1.19 Technical specifications of the AC440 software .........................................................143
2REM440........................................................................................................................145
2.1 About REM440 ............................................................................................................145
2.2 REM440 tests..............................................................................................................145
2.3 Launching REM440.....................................................................................................146
2.3.1 Launching REM440 f rom Noah4: ..............................................................................146
2.3.2 Launching REM440 f rom OtoAccess®: .....................................................................146
2.4 The REM screen elements ..........................................................................................147
2.5 Background on real-ear measurem ents using REM 440 ..............................................154
2.5.1 Required items ........................................................................................................154
2.5.2 Calibration...............................................................................................................156
2.5.3 Gain versus response view.......................................................................................157
2.5.4 Real-ear measurements on open f ittings ...................................................................158
2.5.5 Probe placement .....................................................................................................160
2.5.6 Stimuli for real-ear measures ....................................................................................160
2.5.7 Ref erencing.............................................................................................................163
2.5.8 Vocal effort..............................................................................................................164
2.5.9 Working with fitting targets........................................................................................164
2.5.10 Comparing to the hearing aid f itting software .............................................................169
2.5.11 Speech intelligibility index (SII) .................................................................................171
2.5.12 Display peaks and valleys ........................................................................................172
2.5.13 Preconditioning and sweep delay..............................................................................172
2.5.14 Smoothing a curve...................................................................................................173

2.5.15 Comparing curves....................................................................................................173
2.5.16 Managing multiple curves .........................................................................................174
2.6 Clinical application of real-ear measurem ents using REM440....................................176
2.6.1 REUR/RE UG measurements....................................................................................176
2.6.2 REAR/REA G measurements ....................................................................................180
2.6.3 REIG measurements ...............................................................................................182
2.6.4 RECD measurements ..............................................................................................184
2.6.5 REOR/REOG measurements ...................................................................................195
2.6.6 Measuring input/output.............................................................................................196
2.6.7 Directionality measurements.....................................................................................198
2.6.8 Binaural REM measurements ...................................................................................199
2.7 FM system verification ...............................................................................................207
2.7.1 FM transparency......................................................................................................207
2.7.2 Ear level, FM only ....................................................................................................210
2.8 Working with individual setups (test protocols) .........................................................213
2.8.1 Selecting a test protocol...........................................................................................213
2.8.2 Creating new test protocols......................................................................................214
2.8.3 Combined Screen Setup ..........................................................................................232
2.8.4 Fitting prescription setup ..........................................................................................233
2.8.5 Finishing the test protocol.........................................................................................238
2.8.6 Changing a test protocol permanently .......................................................................238
2.8.7 Changing a test protocol temporarily .........................................................................239
2.8.8 Importing and exporting test protocols.......................................................................239
2.9 General setup .............................................................................................................241
2.10 The REM 440 menu items ...........................................................................................243
2.12 Visible speech mapping (VSPM440) ...........................................................................246
2.12.1 About visible speech mapping ..................................................................................246
2.13 The visible speech mapping screen ...........................................................................247
2.14 Verification with visible speech mapping ...................................................................253
2.14.1 Considerations before you begin...............................................................................253
2.14.2 Visible speech mapping (in ear mode).......................................................................253
2.14.3 Visible speech mapping (in coupler mode/test box mode)...........................................254
2.15 Visual tools for counseling and verification ...............................................................257
2.15.1 Percentile analysis ...................................................................................................257
2.15.2 Display peaks and valleys ........................................................................................258
2.15.3 Show examples .......................................................................................................258
2.15.4 Speech intelligibility index.........................................................................................259
2.15.5 Speech spectrum.....................................................................................................259
2.15.6 Dynamic range view.................................................................................................260
2.15.7 Aided versus unaided...............................................................................................260
2.16 2.16 Visible speech map ping settings ........................................................................260
2.17 FAQ ............................................................................................................................263
2.18 Appendix 1 .................................................................................................................269
2.19 The REM440 test signal characteristics......................................................................269

2.19.1 Signal analysis characteristics ..................................................................................270
The f ollowing table summarises the signal analysis characteristics of the Affinity/Equinox. .......270
2.20 REM PC shortcuts ......................................................................................................271
2.21 REM440 software - technical sp ecifi cation s ...............................................................272
3HIT 440...........................................................................................................................273
3.1 HIT440 quick guide .....................................................................................................273
3.2 About HIT440 ..............................................................................................................275
3.3 HIT 440 tests ...............................................................................................................276
3.4 Launching the HIT 440 software .................................................................................274
3.4.1 Launching from OtoAccess®....................................................................................274
3.4.2 Launching AC440 from Noah....................................................................................274
3.5 The HIT440 screen ......................................................................................................275
3.6 Hearing instrument testing using HIT440 ...................................................................280
3.6.1 Testing hearing instruments:.....................................................................................280
3.6.2 Testing bone anchored device using the SKS10 skull simulator..................................281
3.6.3 Installing the skull simulator license in the HIT440 software: .......................................282
3.6.4 Running pre-programmed test protocols....................................................................287
3.6.5 Automatic testing (auto run)......................................................................................287
3.6.6 Preconditioning and sweep delay..............................................................................288
3.6.7 Smoothing a curve...................................................................................................288
3.6.8 Show cursor on the graph ........................................................................................289
3.6.9 Comparing curves....................................................................................................291
3.6.10 Comparing to the manufacturer’s specification sheets ................................................292
3.7 Application of the HIT440 tests...................................................................................294
3.7.1 Frequency response ................................................................................................294
3.7.2 Gain curve ..............................................................................................................295
3.7.3 Harmonic distortion..................................................................................................296
3.7.4 3.7.4 Input/output.....................................................................................................296
3.7.5 Intermodulation distortion.........................................................................................298
3.7.6 3.7.6 Attack/recovery time........................................................................................298
3.7.7 Battery current drain/battery lif e time.........................................................................300
3.7.8 Equivalent input noise..............................................................................................302
3.7.9 Ref erenc e test gain..................................................................................................303
3.7.10 Microphone directionality..........................................................................................304
3.7.11 Single f requency ......................................................................................................305
3.7.12 Response/gain/input/output......................................................................................306
3.7.13 Delay .................................................................................................................307
3.7.14 OSPL90 .................................................................................................................308
3.7.15 3.7.15 Full-on gain ...................................................................................................308
3.8 Working with individual setups (test protocols) .........................................................310
3.8.1 Selecting a (standard) test protocol:..........................................................................310
3.8.2 Designing a customized test protocol........................................................................311
3.8.3 Combined screen setup ...........................................................................................339
3.8.4 Print layout settings..................................................................................................340
3.8.5 Finishing the test protocol.........................................................................................341
3.8.6 Changing a test protocol permanently .......................................................................342

3.8.7 Changing a test protocol temporarily .........................................................................343
3.9 General setup .............................................................................................................345
3.10 The HIT440 menu items ..............................................................................................348
3.11 HIT440 software - technical specifications .................................................................350
3.12 Appendix 1 .................................................................................................................351
3.12.1 The HIT440 test signal characteristics.......................................................................351
3.12.2 Signal analysis characteristics ..................................................................................352
The f ollowing table summarises the signal analysis characteristics of the Affinity/Equinox. .......352
3.13 Appendix 2: ................................................................................................................353
3.13.1 Connecting the TBS25 to Affinity2. 0/Equinox2. 0 ...........................................................353
4PRINTING AND MAKING REPORTS.....................................................................354
4.1 The print wizard ..........................................................................................................354
4.1.1 Designing a customized print template......................................................................356
4.1.2 Design elements ......................................................................................................357
4.2 Creating reports .........................................................................................................362
4.2.1 Operation of the report editor....................................................................................362
5RECOVERY MANAGER ...........................................................................................366
6CRASH REPORTS.....................................................................................................368

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Affinity/Equinox2.0 – Additional Information Page 1
1AC440
1.1 About AC440 module
AC440 is the PC-based audiometry module for the Affinity2.0 and Equinox2.0 hardware platforms.
The AC440 software is an independent two-channel audiometer. It f eatures tone audiometry f or air and
bone, speech testing and a variety of masking and signal types. Stimuli are presented using the PC
keyboard, mouse, or a dedicated audiometry keyboard. Test results are displayed on screen and saved to
the associated database (e.g., Noah, OtoAccess®). They are immediately available f or inspection, hearing
aid fitting, printout, export, and so on. The AC440 module can also be operated external to a database in
stand-alone mode.
The module is f lexible, enabling the individual clinician to tailor the system according to their specific
preferences. It permits the creation of an unlimited number of personalized test protocol settings and
functions f or different purposes and/or for different clinicians working at the same location. The system also
provides you with the option to make individual print layouts, keep reports electronically, and compare actual
curves to previous sessions. These numerous setup options can be very helpf ul and time saving in the daily
clinical work environment.
In addition to the setup f unctions, the AC440 also contains counselling tools to help both patient and
relatives to get a better understanding of the consequences of hearing impairment and why hearing
amplif ication may be needed.
The AC440 contains the f ollowing tests:
Air Conduction Audiometry
oHigh Frequency Audiometry
oMulti Frequency audiometry
Bone Conduction Audiometry
Free Field Audiometry
Speech Audiometry
Masking Level Difference (MLD)
Master Hearing Aid (MHA) (counselling tool)
Hearing Loss Simulation (HLS) (counselling tool)
Short Increment Sensitivity Index (SISI)
Weber
Knaster
Stenger
Tone Decay Test
TEN test
QuickSIN
Speech in Quiet (SIQ)
Speech in Noise (SIN)
Acceptable Noise Level (ANL)

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1.2 Launching AC440
Ensure that the Affinity2.0/Equinox2.0 is powered on and connected to your PC bef ore opening the software
suite. If the hardware is not detected, the Affinity Suite will open but it will run in Simulation mode. This is
identifiable by the below icon in the left of the screen. If the unit is connected then the second icon below will
show, indicating a unit is present which it is connected to.
1.2.1 Launching from OtoAccess®
For further instructions about working with OtoAccess®, please see the OtoAccess® operation manual.
1.2.2 Launching from Noah
If you are using HIMSA’s Noah 4, the Affinity software will install itself automatically in the menu bar on the
start page, along with all the other software modules.
For f urther instructions about working with Noah please see the Noah operation manual.

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1.2.3 Using the tone screen
The f ollowing section describes the elements of the tone screen.
Menu provides access to Print, Edit, View, Tests, Setup, and Help
Print allows f or printing the session’s acquired data.
Save & New Session saves the current session in Noah or OtoAccess® and
opens a new one.
Save & Exit saves the current session in Noah or OtoAccess® and exits the
Suite.
Collapse the lef t side panel.
Go to Tone Audiometry activates the tone screen when in another test.
Go to Speech Audiometry activates the speech screen when in another
test.
Extended Range +20 dB extends the testing range and can be activated
when the testing dial setting gets within 50 dB of the maximum level of the
transducer.
Note that the extended range button will f lash when it needs activation for
reaching higher intensities.
To switch on the extended range automatically, select the Switch extended
range on automatically by going to the setup menu.

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Fold an area so that it only shows the label or the buttons of that area.
Unfold an area so that all buttons and labels are visible
Show/hide areas can be found by right tone tesclicking on one of the areas.
The visibility of the different areas as well as the space that they take on the
screen is locally saved to the examiner.
1HF requires an additional license fo r the AC440. If not purchased, the button is grayed out.
List of Defined Protocols allows f or selecting a test protocol for the
current test session. Please refer to section 1.7 f or more inf ormation about
protocols. Right mouse click on a protocol allows the current examiner to
set or deselect a def ault start-up protocol.
Temporary Setup allows for making temporary changes to the selected
protocol. The changes will be valid f or the current session only. Af ter
making the changes and returning to the main screen, the name of the
protocol will be followed by an asterisk (*).
List of historical sessions accesses historical sessions for comparison
purposes. The audiogram of the selected session, indicated by the
orange background, is shown in colours as def ined by the used symbol
set. All other audiograms that are selected by check marks show on
screen in the colours as indicated by the text colour of the date and time
stamp. Note that this listing can be resized by dragging the double lines
up or down.
Right Clicking on a historical session will allow you to see exactly
which measurements have been performed in that session. This is useful
when trying to f ind a special test amongst several sessions without
opening the session individually to find the data you need.
The tests which have been performed will have a green light next to them.
You can also click on Deselect all selected sessions overlays af ter
right clicking on the sessions to remove any historic session overlays you
have chosen to display.
Go to Current Session brings you back to the current session.
High Frequency1shows f requencies on the audiogram (up to 20 kHz f or
the Af f inity2.0/Equinox2.0). However, you will only be able to test in the
frequency range the selected headset is calibrated for.
High Frequency Zoom activates high frequency testing and zooms in on
the high frequency range. Please refer to section 1.6.1 f or more
information on high frequency testing.

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Edit Mode button activates the editing f unction. Left clicking on the graph
will add/move a point to the position
of the cursor. By right clicking on a
point,
it is possible to Delete the recorded point or the entire curve.
Fu
rthermore, right mouse click provides the option to Add unmasked
threshold, Add
no response, Add masked threshold, Add masked-
n
o-response threshold, Copy bone thresholds to other ear, and Hide
unma
sked thresholds where masked exist.
Mouse controlled audiometry enables you to do the audiometry using
the mouse only.
The stimulus is presented with the lef t mouse button, and
the threshold is stor
ed with the right mouse button.
The dB step size button indicates to which dB step size increment the
syste
m is currently set. It rotates from 1 to 2 to 5 dB and the larger
number indic
ates the setting.
The hide unmasked threshold will hide those unmasked thresholds
where m
asked thresholds exist.
Toggle Masking Help will activate or deactivate the Masking Help. The
masking help f unction can be removed f rom this interface through
amending the settings
in the Protocol Setup (See this in section 1.7.2.2).
For more inf orma
tion on Masking Help, please see section 1.7.2.2 or
Appendix
2 for the Masking Help Quick Guide
Toggle Automasking will activate or deactivate the Automasking feature.
For more
information on Automasking, please refer to section 1.7.2.2 or to
Append
ix 4 for the Masking Help Quick Guide.
Talk Forward activates the Talk Forward microphone. The arrow keys
can be used to set the talk forward level through
the currently selected
transducers. The level will be accurate when
VU meter indicates to be at
zero dB.
Selecting the Monitor Ch1 and/or Ch2 check boxes allow you to monitor
one or both channels through an external loudspeaker/headset connected
to th
e monitor input. The monitor intensity is adjusted by the arrow keys.
The Talk back check box enables you to listen to the patient. Note that
you need to be
equipped with a microphone connected to the talk back
input and an external loudspeaker/headse
t connected to the monitor
input.
2MF requires an additional license for the AC440. If not purchased, the button is greyed out.
Single audiogram toggles between viewing the inf ormation of both ears
in a single graph and two separate graphs.
Multi frequencies2activate testing with frequencies in between the
standard audiometric test frequencies. The frequency resolution can be
adjusted in the AC440 setup.
Synchronize channels locks the two channels together. This f unction
may be used to perform synchronous masking.

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The Patient monitor opens an always-on-top window with the tone
audiograms and a
ll its counselling overlays shown. This provides an
e
asier layout to counsel the patient. The size and position of the patient
monitor get
s saved for each examiner individually.
The Phonemes counselling overlay shows phonemes as it is configured
in the
protocol that is currently in use.
The Sound examples counselling overlay shows pictures (png-
files) as they are set up in the protoc
ol that is currently in use.
The Speech banana counselling overlay shows the speech area as it is
set up in the pr
otocol that is currently in use.
The Severity counselling overlay shows the degrees of hearing loss as it
is set up in the protocol th
at is currently in use.
The Max. testable values overlay highlights the area beyond the
ma
ximum intensity that the system allows. This reflects the transducer
calibrat
ion and dif f ers when the extended range is activated.
Selecting HL,MCL,UCL or Tinnitus sets the symbol types that are currently
in use by the
audiogram for dif ferent tests. HL stands f or hearing level, MCL
stands for most comf ortab
le level and UCL stands f or uncomfortable level.
Note that these buttons
display the unmasked right and lef t symbols of the
currently selected symbol set.
Each type o
f measurement is saved as a separate curve.
Binaural and Aided allows for indicating if the test is performed with hearing
aids or binaurally with corresponding symbols. The meas
urements will be
saved
as separate curves.
In the Comments section you can type comments related to any
audiometric test. The used space by the comments area can be set by
dragging the double line with your mouse. Pressing the button opens a
separate window f or adding notes to the current session. The report editor
and comment box contain the same text. In case the formatting of the text is
important, this can only be set within the report editor.
On pressing the button you will see a menu which allows you to specify
the hearing aid style on each ear. This is just f or note taking when
perf orming aided measurements on your patient.
After saving the session, comment changes can only be made within the
same day until the date changes (at midnight). Note: these timeframes are
limited by HIMSA and the Noah sof tware and not by Interacoustics.

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The Output list for channel 1 provides the option to test through head
phones, bone conductor, free field speakers or insert phones. Note that the
system only shows the calibrated transducers.
The Input list for channel 1 provides the option to select pure tone, warble
tone, narrow band noise (NB) and white noise (WN).
Note that the background shading is according to the side that is selected,
red f or right and blue f or lef t.
The Output list for channel 2 provides the option to test through head
phones, free f ield speakers, insert phones or insert masking phone. Note
that the system only shows the calibrated transducers.
The Input list for channel 2 provides the option to select pure tone, warble
tone, narrow band noise (NB), white noise (WN) and TEN noise3.
Note that the background shading is according to the side that is selected,
red f or right, blue for left, and white when off.
Man and Rev allows toggling between Manual and Reverse test modes. In
manual the stimulus is presented only when manually activated. In reverse
the signal is presented continuously until interrupted by the tone switch.
Pulsation allows for single and continuous pulsating presentation. The
duration of the stimulus can be adjusted in the AC440 setup.
Sim/Alt allows togging between Simultaneous and Alternate presentation.
Ch1 and Ch2 will present the stimulus simultaneously when Sim is
selected. When Alt is selected, the stimulus will alternate between Ch1 and
Ch2.
R+L allows for the system to perform binaural masking and tone
simultaneously. This setting will need to be enabled in each channel. The
test screen will turn grey to indicate this.
Masking indicates if channel 2 is currently in use as a masking channel
and in that way makes sure masking symbols are used in the Audiogram.
For example, in paediatric testing through free field speakers, channel 2
can be set as a second testing channel. Note that a separate store f unction
for channel 2 is available when channel 2 is not used for masking.
dB HL Increase and Decreasebuttons allow increasing/decreasing the
intensities of channel 1 and 2.
The arrow keys on the PC keyboard can be used for increasing/decreasing
channel 1 intensities.
PgUp and PgDn on the PC keyboard can be used for
increasing/decreasing channel 2 intensities.
3TENnoiserequires an additional license forthe AC440. If not purchased, the stimulusis notavailable.

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Stimuli buttons will light up when hovering the mouse over it. This indicates
the presentation of a stimulus.
A right mouse click in the Stimuli area will store a no response threshold. A
left mouse click in the Stimuli area will store the threshold at the current
position.
Channel 1 stimulation can also be obtained by pressing the space bar or
left Ctrl key on the PC keyboard.
Channel 2 stimulation can also be obtained by pressing the right Ctrl key on
the PC keyboard.
Mouse movements in the Stimuli area for both channel 1 and channel 2 can
ignored depending on the setup.
Frequency and Intensity display area shows what is currently presented.
To the left the dB HL value f or channel 1 is shown and to the right f or
channel 2 In the centre the frequency is displayed.
Notice that the dB dial setting will flash when trying to go louder than the
maximum available intensity.
The patient response indicator will appear in between these values when
the patient response button is depressed. The colour of this indicator will
depend upon which patient response side is used, a red light indicates the
right patient response, and a blue light indicates the lef t patient response.
Frequency increase/decrease increases and decreases the f requency
respectively. This can also be obtained using the left and right arrow keys
on the PC keyboard.
Storing thresholds f or channel 1 is done by pressing Sor by a left mouse
click in the attenuator of channel 1. Storing a no response threshold can be
done by pressing N or by a right mouse click in the stimuli button of channel
1.
Storing thresholds f or channel 2 is available when channel 2 is not the
masking channel. It is done by pressing <Shift> Sor by a left mouse click
in the stimuli button of channel 2. Storing a no response threshold can be
done by pressing <Shift> N or by a right mouse click in the attenuator of
channel 2.
The hardware indication picture indicates whether the hardware is
connected. Simulation mode is indicated when operating the software
without hardware.
When opening the Suite, the system will automatically search for the
hardware. If it does not detect the hardware, it will automatically run in
simulation mode.
The Examiner indicates the current clinician who is testing the patient. The
examiner is saved with a session and can be printed with the results. This
information is taken from the login on the database from which the Suite is
launched, or the suite can be configured in the ‘General Suite Settings’ to
request an examiner name on start-up.
For each examiner, the Suite stores how it is set up with regards to the use
of space in the screen. The examiner will f ind that the suite starts up looking
the same as it did the last time, they used the software. Also, the examiner
can select which protocol must be selected at start up (by right mouse click
on the protocol selection list).

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1.3 The speech screen elements
The following section describes the elements of the speech screen in addition to the tone screen:
Input levelssliders allow f or adjusting the input level to 0 VU f or the
selected input. This ensures that correct calibration is obtained for Mic1,
Mic2, CD1, and CD2.On the VU Meter the dial intensity is achieved when
the signal is at the 0 mark.
WR1,WR2 and WR3 (Word Recognition) allows selecting different speech
list setups as defined by the selected protocol. The labels of these lists
which go along with these buttons can also be customized in the protocol
setup. (See section
1.7.2.3).
Binaural and Aided function allows f or indicating if the test is performed
binaurally or while the patient is wearing hearing aids.

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The Output list for channel 1 provides the option to test through head
phones, bone conductor, free field speakers or insert phones. Note that the
system only shows the calibrated transducers.
The Input list for channel 1 provides the option to select white noise (WN),
speech noise (SN), microphone 1 or 2 (Mic1 and Mic2), AUX1, AUX2 and
wave f ile.
Note that the background shading of the speech Audiogram is according to
the side that is selected, red for right and blue f or lef t.
The Output list for channel 2 provides the option to test through head
phones, f ree field speakers, insert phones or insert masking phone. Note
that the system only shows the calibrated transducers.
The Input list for channel 2 provides the option to select white noise (WN),
speech noise (SN), microphone (Mic1 and Mic2), AUX1, AUX2 and wave
file.
Note that the background shading is according to the side that is selected,
red f or right, blue for lef t, and white when off.
Speech Scoring:
a) Correct: A mouse click on this button will store the word as correctly
repeated. The left arrow key can also be used for storing as correct.
b) Incorrect: A mouse click on this button will store the word as
incorrectly repeated. The right arrow key can also be used to score as
incorrect.
*when using the graph mode, the correct/incorrect scoring is assigned
by using the Up and Down arrow keys.
c) Store: A mouse click on this button will store the speech threshold in
the speech graph. A point can also be stored by pressing S.
Phoneme scoring:
a) Phoneme scoring: If phoneme scoring is selected in the AC440
setup, mouse click on the corresponding number to indicate phoneme
score. Clicking on the Up arrow and the Down arrow keys will score as
correct and incorrect, respectively.
b) Store: A mouse click on this button will store the speech threshold in
the speech graph. A point can also be stored by pressing S.
Frequency and Intensity display shows what is currently presented. On
the left the dB value f or channel 1 is shown and on the right side for
channel 2.
In the centre of the current Speech Scorein % and the Word Counter
monitors the number of words presented during the test.
a
b
c

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Shuffled wave file testing
1) By clicking on the ‘Shuf f le’ icon you can randomize the order of the
wave f iles for speech test presentation
2) Re-clicking on the ‘shuffle’ icon will allow you to revert to the non-
randomized material
3) When looking through the material you can quickly see which list has
been randomized by the highlighted Randomize button and if the
feature is on then the list will be randomized when the list is selected.
This f eature gives much more flexibility and control when Speech testing. This f eature is also
implemented in other areas of the software where we are using speech wave f iles, for example in the
SIN and SIQ tests.
There is a setting within the protocol configuration to enable this f eature to be defaulted on

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1.3.1 Speech audiometry in graph mode
Graph mode presentation settings in the lower left corner and in the presentation options (Ch1 and Ch2) in
the upper part of the screen you can adjust the test parameters during the test.
1) The graph: The curves of the recorded speech graph will be displayed on your screen.
The x-axis shows the intensity of the speech signal, and the y-axis shows the percentage score.
The score is also displayed in the black display in the upper part of the screen along with a word
counter.
2) The norm curves illustrate norm values for S(Single syllabic) and M (Multi syllabic) speech material
respectively. The curves can be edited according to the normative data you wish to use in the AC440
setup (see section
1.7.2.3)
3) The shaded area illustrates how high in intensity the system will allow. The Extended Range +20 dB
button can be pressed to go higher. The maximal loudness is determined by the transducer
calibration.