otometrics AURICAL Aud Reference Manual Download Page 18

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When is masking required?

Masking is recommended when the following conditions are met:

AC > ACc + Min IA

AC > BCc + Min IA

BC < AC - x* dB

Only stored thresholds measured without masking are checked. Levels which did not evoke a response are excluded from
the check. This means that as soon as a masked threshold has been stored, the flashing stops for that frequency.

* denotes configurable Air/Bone gap criterion (

Tools

Configuration Wizard

Audiometry

Configure

... >

Masking

Assistant

Min IA is frequency specific

These are the Min IA tables for TDH-39 and Otometrics Inserts used in the Masking Assistant

Min IA (supraaural phone: TDH-39), frequency specific

125

Katz & Lezynski, (2002)

250

Munro & Agnew, BJA (1999)

500

Munro & Agnew, BJA (1999)

750

N/A - fulfill traditional approach

1000

Munro & Agnew, BJA (1999)

1500

N/A - fulfill traditional approach

2000

Munro & Agnew, BJA (1999)

3000

Hall J.W. III & Mueller G.H. III / Munro & Agnew, BJA (1999)

4000

Katz J / Munro & Agnew, BJA (1999)

6000

Hall J.W. III & Mueller G.H. III / Munro & Agnew, BJA (1999)

8000

Katz J / Munro & Agnew, BJA (1999)

Min IA insert phone

125

N/A - traditional value

250

Munro & Agnew, BJA (1999)

500

Munro & Agnew, BJA (1999)

1Katz, J., Lezynski, J. (2002). Clinical Masking. In J. Katz, ed.,

Handbook of Clinical Audiology

, Williams and Wilkins, Bal-

timore. Munro, K.J., Agnew,

N. A comparison of inter-aural attenuation with the Etymotic ER-3A insert earphone and

the Telephonics TDH-39 supra-aural earphone

. Br J Audiol 1999; 33: 259-262. Hall, JW., MUELLER, HG. (1997).

The audi-

ologists’ desk reference

, Volume I., Singular Publishing Group, San Diego.

Otometrics - AURICAL Aud

2 Navigating in the OTOsuite Audiometry Module

Summary of Contents for AURICAL Aud

Page 1: ...AURICAL Aud Reference Manual Doc No 7 50 1030 EN 15 Part No 7 50 10300 EN ...

Page 2: ...rved Otometrics the Otometrics Icon AURICAL MADSEN ICS and HORTMANN are registered trademarks of GN Otometrics A S in the U S A and or other countries Version release date 2017 03 13 153515 Technical support Please contact your supplier Otometrics AURICAL Aud 2 ...

Page 3: ...5 The Control Panels 19 2 5 1 Quick Select Tone 20 2 5 2 Quick Select Speech 21 2 5 3 Test Options 22 2 5 4 Monitor and Level 24 2 6 The stimulus bar 25 2 6 1 Test controls 25 2 6 2 The Tone stimulus bar 26 2 6 3 The Speech stimulus bar 27 2 7 The Tone test screen 27 2 7 1 The work area in the Tone screen 28 2 7 2 The audiogram 28 2 7 3 Curves and symbols selection 30 2 7 3 1 Selecting a symbol or...

Page 4: ...ecting the FreeFit device in OTOsuite 64 2 14 4 2 Measuring Ambient Noise with AURICAL FreeFit 64 2 14 4 3 Noise level indicators stored with measurements 67 2 14 4 4 Activating the Ambient Noise Assessor automatically 68 2 14 4 5 Minimum HTL per transducer type 69 2 15 Test controls keyboard mouse 69 2 15 1 PC keyboard controls 69 3 Preparing for testing 71 3 1 Preparing the test environment 71 3...

Page 5: ...URICAL speaker unit connection panel 92 5 6 Assembling AURICAL Aud 93 5 7 Desktop or wall installation 94 5 7 1 Connecting accessories and PC to AURICAL Aud 95 5 7 2 Mounting AURICAL Aud on the mounting plate 95 5 8 AURICAL speaker unit installation 95 5 8 1 Connecting cables to the AURICAL speaker unit 96 5 8 2 Connecting accessories and PC to AURICAL Aud 98 5 8 3 Mounting AURICAL Aud on the AURI...

Page 6: ... 115 12 2 Warning notes 115 12 2 1 Connector warning notes 115 12 2 2 General warning notes 116 12 3 The OTOsuite Audiometry Module 118 12 4 Manufacturer 118 12 4 1 Responsibility of the manufacturer 118 13 Technical specifications 119 13 1 AURICAL Aud 119 13 2 HI PRO 2 built in 127 13 3 AURICAL speaker unit 128 13 4 Accessories 128 13 5 Notes on EMC Electromagnetic Compatibility 129 Index 133 6 O...

Page 7: ...ICAL Aud can be placed on the desk top mounted directly on the back of the AURICAL speaker or if the optional kit is used it can be mounted on the wall or under the desk Operating AURICAL Aud You operate AURICAL Aud from the PC s keyboard mouse with the OTOsuite Audiometry Software Module acting as the display showing the intensity frequency as well as current settings and other information on the...

Page 8: ... AURICAL Aud to connect and drive the accessories for OTOsuite PMM and the OTOsuite Counseling and Simulations module The speaker unit also contains a built in charger for FreeFit Note The instructions for assembly are the same whether or not the audiometer is activated 1 4 The OTOsuite Audiometry Module OTOsuite OTOsuite is a software tool that integrates a suite of hearing tests and hearing inst...

Page 9: ...iewing masking level indicator in audiogram Viewing audiogram overlays 1 4 1 NOAH OTOsuite integrates with NOAH systems NOAH for ENT NOAH compatible Office Management systems The NOAH System is a HIMSA product for managing clients launching hearing test applications and fitting software and storing audiological test results OTOsuite stores test results using NOAH Note Whenever reference in this ma...

Page 10: ... 86 and Assembling AURICAL Aud 93 contain a full description of unpacking instructions and how to assemble the device For instructions on installing the software see the OTOsuite Installation Guide 1 6 2 Safety This manual contains information and warnings which must be followed to ensure the safe performance of AURICAL Aud Warning Local government rules and regulations if applicable should be fol...

Page 11: ... to data or the device Note Indicates that you should take special notice 1 7 1 Navigation Menus icons and functions to select are shown in bold type as for instance in Click the Set Options icon on the toolbar or select Tools Options Otometrics AURICAL Aud 11 1 Introduction to AURICAL Aud ...

Page 12: ...1 Introduction to AURICAL Aud 12 Otometrics AURICAL Aud ...

Page 13: ...st screen 27 The Speech test screen 36 Special tests are described in Special tests 57 2 1 The Audiometry Module main window The basic OTOsuite functions are described in the OTOsuite User Guide Audiometry elements A Audiometry toolbar B Control Panel C Work area D Stimulus bar E Masking level indicator F Stimulus marker 2 2 Menus and toolbar icons General icons see the OTOsuite manual Otometrics ...

Page 14: ...ir conduction transducer for a manu ally entered audiogram Note The air conduction transducer is stored when you have selected it in the transducer section of the Control Panel or with device controls if applicable and data points are entered on the audiogram 2 2 3 View menu Menu item Tone Icon Description Select Orientation Click to select the perspective of the patient s ears as presented on the...

Page 15: ...nd a right audiogram on your screen Audiogram Legend Click to enable or disable the display of the audiogram legend The legend contains the most commonly used symbols for the audiogram It is not configurable Standard All High frequencies The graph shows up to 20 000 Hz AURICAL Aud presents stimulus up to 12 500 Hz Click to choose between viewing Standard Frequencies Displays the audiogram from 125...

Page 16: ... is checked Scoring and Playing See Selecting word or phoneme scoring 37 Ambient Noise Assessor See Ambient Noise Assessor 64 2 2 5 Tools menu Menu item Icon Description Curves and Symbols Click to select the Curves and Symbols dialog box This dialog box and its related function are specific to configuring the curves and symbols to be displayed on the audiogram or speech graph during testing See C...

Page 17: ...s the efficacy of your work or the traditional one level fits all criteria Select the Tools Configuration Wizard Audi ometry Configure Masking Assistant to set up the masking criteria All masking signals are calibrated in effective masking How does the Masking Assistant work Terminology AC AC test ear ACc AC contra BC BC BCc BC contra Min IA Minimum inter aural attenuation 1 Katz J Lezynski J 2002...

Page 18: ...Agnew BJA 1999 750 40 N A fulfill traditional approach 1000 48 Munro Agnew BJA 1999 1500 40 N A fulfill traditional approach 2000 44 Munro Agnew BJA 1999 3000 56 Hall J W III Mueller G H III Munro Agnew BJA 1999 4000 50 Katz J Munro Agnew BJA 1999 6000 44 Hall J W III Mueller G H III Munro Agnew BJA 1999 8000 42 Katz J Munro Agnew BJA 1999 Min IA insert phone Hz dB 125 60 N A traditional value 250...

Page 19: ...1999 4000 72 Munro Agnew BJA 1999 6000 54 Munro Agnew BJA 1999 8000 62 Munro Agnew BJA 1999 2 5 The Control Panels Click the Control Panel icon in the toolbar to activate the Control Panel The Tone Control Panel A Quick Select Tone 20 B Test Options 22 C Monitor and Level 24 Otometrics AURICAL Aud 19 2 Navigating in the OTOsuite Audiometry Module ...

Page 20: ...ill be routed to the right left or both right and left transducers This will also reflect on how the results are stored Left symbols will be stored on the left ear audiogram or on the combined audi ogram Right symbols will be stored on the right ear audiogram or on the combined audiogram Binaural symbols will be stored on both audiograms or once on the combined audiogram AC Air Conduction Mask Pre...

Page 21: ...tions you wish to apply to the audiogram Condition Unaided Aided Speech 1 Aided Speech 2 Click to define the viewing mode you wish to apply to the audiogram Threshold MCL UCL Threshold view Most Comfortable Level view UnComfortable Level view 2 5 2 Quick Select Speech Click the Control Panel icon in the toolbar to activate the Control Panel Test Ear Click to select the test ear to be recorded in t...

Page 22: ...he patient s MCL level or above The patient is instructed to repeat the words he or she hears SNR dB step S ignal to N oise R atio in dB step If you check SNR you can report a S ignal to N oise R atio in the speech result descrip tion box This also stores the speech data as a speech in noise test and is accordingly dif ferentiated from a regular speech measurement IPSI routing IPSI Click to select...

Page 23: ...r sound field testing to avoid any standing waves Warble depth and rate are configurable select Tools Options Audiometry Tone Measurement Misc Warble FRESH Noise Presents the customized FRESH noise as the stimulus type ab FRESH stands for FREquency Specific Hearing assessment noise Speech specific options Input Speech material source drop down list Determines the input to Source A and Source B The...

Page 24: ... check boxes are used for enabling disabling of monitoring You can also define this in Tools Options Audi ometry General Measurement Monitor Stim The stimulus can be monitored if this option is enabled The indicator displays the level of the signal Mask Masking can be monitored if this option is enabled The indicator displays the level of the sig nal Talkback Talkback can be monitored if this opti...

Page 25: ...that the stimulus is currently being presented Stimulus bar color Indicates the routing for each channel Blue left ear Red right ear Blue Red binaural Gray unspecified Stimulus transducer and routing indicators The stimulus masking type the transducer and the routing for each channel 2 6 1 Test controls Test controls provide a means of operating the audiometer if you use the mouse and on screen op...

Page 26: ...one and Speech Stores the data point on the audiogram s or in the Speech screen Silence Mode Silence Mode allows you to control tone levels and presentation by hovering the mouse cursor over the respective on screen controls This is particularly useful when the operator of the audiometer and the person being tested are in the same room To enable silence mode select Tools Options Audiometry General...

Page 27: ...correct out of a given number of words You can display speech score and word count either as Correct or as Incorrect To set your pref erence select Tools Options Speech Misc Score Presentation Correct is the default setting VU Meter Displays the level in volume units of the test microphone or speech material from Source A or Source B Speech should always be delivered at 0 dB on the VU meter so tha...

Page 28: ...eature boxes 32 With a description of result boxes for special tests utilities such as a timer and an overlays selector and instructions for how to view hide the feature boxes 2 7 2 The audiogram Audiogram elements Cross hatch Indicates your current stimulus level and frequency The color indicates the rout ing Blue left Red right Black binaural Mouse cursor Indicates where you place the mouse The ...

Page 29: ...tor C Mouse cursor ear color Dual graph view When you use the dual graph viewing option the graph that corresponds with the stimulus ear will have a gray outline to denote the active audiogram You can switch the position of the right and left graphs to cor respond to your viewing preference 1 Select Tools Options Tone Misc Dual Graph View or in the menu bar under View A Stimulus marker ear color B...

Page 30: ...te new symbols 2 7 3 1 Selecting a symbol or curve You can select a symbol and or a curve style for a specific measurement 1 Select Tools Curves and Symbols 2 Click on the selections that apply to your measurement under Test Transducer and Aided Condition The current symbols and line style are shown 3 Double click on the symbol you wish to change The Symbols selection dialog box is shown 4 Double ...

Page 31: ...rrows for No Response or Response at Limit and designators for Aided Left or Aided Right 3 Before you store the new graphic make sure that the outer and inner frames are invisible Select the frame and set the line color to No Line Repeat this for each frame 4 To save as an emf graphics file select all elements in the drawing including the invisible outer frame as well as the symbol itself centered...

Page 32: ...e the compare view by enabling the Difference view This is done by checking the Difference option in the fea ture box The Difference view highlights any difference between the most recent and any older audiogram curves selec ted in the list 4 If you decide to make a new audiogram then a new Current audiogram is generated in the Compare Audiograms fea ture box list and what was previously the curre...

Page 33: ...a Displays the pure tone average PTA for air conduction and bone conduction as well as the articulation index AI The AI is calculated according to the Count the dot method To configure PTA calculation select Tools Options General Misc PTA Fre quency Multipliers AC BC Tone Decay Displays the results of the tone decay test Scoring options are Rosenberg Method Normal Mild Moderate Marked or Jerger ST...

Page 34: ...on the main screen in Tone mode the following options appear Tone editing options Selected Point e g Left AC threshold 1kHz If more than one symbol is at the same intensity frequency select the data point of interest from the drop down list Delete Point Deletes a selected data point Delete Curve Deletes a selected data curve Insert No Response Inserts a no response symbol default symbol with arrow...

Page 35: ...lick to select the way you view the patient in relation to your mon itor Control Click to select the position of the stimulus channel on the screen 2 8 2 Automatic frequency level shift when storing When you use the Wrap or Butterfly method for testing this feature enables you to speed up the test process by auto matically shifting frequency and level when you store a point in the audiogram To do ...

Page 36: ...ency it automatically goes to 1000 Hz The direction depends on whether the previous data point was stored at a higher or lower frequency 2 8 3 Stimulus duration You can set a fixed duration of the presentation of the tone stimulus To do so select Tools Options Tone Meas urement Stimulus Duration 2 8 4 Ear shift frequency and level setting When you change test ear you can define that the frequency ...

Page 37: ...h material 46 Scoring phonemes using external sound source 47 Editing options Speech editing options tabular view 51 Speech editing options graph view 54 Storing speech data You can store the current data as the result either by clicking with the mouse on the highlighted field or by pressing the Store shortcut key on the keyboard S See also Storing SNR for Speech testing 52 2 9 1 Selecting word or...

Page 38: ...scoring or individual words in sentence scoring You can use the All Correct button when the patient responds correctly to a presentation When you use specific phoneme scoring you can keep your focus on the speech list by using the Play button next to the item in the speech list Scoring Scoring Word scoring Enable Word Scoring Phoneme Sentence scoring Enable Phoneme Sentence Scoring Number of phone...

Page 39: ... percentage is calculated based on the total number of words you have defined in advance Tools Options Audiometry Speech Scoring and Playing Number of items to play back Phoneme Sentence scoring Score the number of correct phonemes using the corresponding numbers in the Counter External speech material Always enter a score for each word This will update the counter accordingly Incorrects only Word...

Page 40: ...hout pausing External speech material Does not apply to external sound source speech material Phoneme Sentence scoring The word list is presented exactly as the original recording without pausing If a word is presented without any phonemes being counted the Autoscore is applied External speech material Does not apply to external sound source speech material Play on Count Word scoring Next word pla...

Page 41: ...of the settings in the columns Counting and Playing If a word is not manually scored before Time out or before the next word is presented by Continuous Playback the scoring is set automatically External speech material Does not apply to external sound source speech material Phoneme Sentence scoring When you score phonemes you can define Autoscore manually to either ignore the entire word or count ...

Page 42: ... external sound players eg CD MD MP3 or cassette recorders connected to the audiometer via the Line In input 4 You can find the speech material files in the File track list selection drop down list Speech list files provided by Otometrics When you use integrated OTOsuite Speech Material you can choose between speech lists in the File track list selection drop down list Select Int File in the Contr...

Page 43: ...word score E Previous next list F File track list selection Setting up for Scoring and Playing To set up for scoring and playing see Selecting word or phoneme scoring 37 The Stimulus bar word score Scoring Panel The score percentage and the Correct or Incorrect scores relating to the number of words played are shown at the top of the screen When you use integrated word lists the Scoring Panel is e...

Page 44: ...s After you have scored the integrated word lists they will appear in the Tested Lists tab The Tested Lists tab will show the list belonging to the test currently selected in the Speech Results table tabular or Speech legend graphical The tested lists are also avail able for printing When you mouse over an item in the speech list a Play button appears to the left of the item Click the Play button ...

Page 45: ...Pause C Stop D Reset word score E Previous next list F File track list selection disabled when Line In is selected Setting up for Scoring and Playing To set up for scoring and playing see Selecting word or phoneme scoring 37 The Stimulus bar word score Scoring Panel The score percentage and the Correct or Incorrect scores relating to the number of words played are shown at the top of the screen Wh...

Page 46: ...he appropriate number of scoring buttons automatically This can be configured specifically for each item in the integrated Speech material Please contact your sup plier for further information Setting up for Scoring and Playing To set up for scoring and playing see Selecting word or phoneme scoring 37 The Stimulus bar phoneme score Scoring Panel The score percentage and the number of words played ...

Page 47: ...core or control the play back of the word list You can either play back a single item or select a place in the list where you want to start the play back Using word lists with monitored live voice testing When you have loaded an integrated OTOsuite Speech Material you can use the word list to read from using Mic stim ulus for live voice testing Store the phoneme score results See Selecting the wor...

Page 48: ... initialized to 0 0 words or to 100 0 words depending on the setting in Tools Options Audiometry Speech View Score Presentation Click on the relevant phoneme score counter button to record the response of the client Store the phoneme score results See Selecting the work area in the Speech screen 36 2 9 7 Saving source levels for speech material Note This feature applies to sound files on the PC ha...

Page 49: ... Speech test screen of the OTOsuite Audiometry module you can use either tabular view or graphical view 1 To select the view you wish to use select Tools Options Audiometry Speech Speech View Mode Tabular View or Graphical View AURICAL Aud is intended for use with predefined speech protocols that are loaded automatically when you select a user test You can have a full overview and instantly select...

Page 50: ...ve Down You can also assign a different speech material or stimulus source To do so make your stimulus selection right click the active row in the speech table and select Configure Assign selected stimulus Saving the table to a user test When you have pinned the new test rows to the speech table you must save it to a user test or to your start up settings Open the Tools Options dialog and click to...

Page 51: ...t Entry fields Enables you to enter results in the selected field When you have typed in the desired data confirm by pressing Enter or cancel by pressing Esc Configure See Creating and editing the speech test table 50 Editing a row Click on the data you wish to edit and use the right click menu to change the value Deleting a row Right click on the field you wish to delete and select Delete Measure...

Page 52: ...e two audiometer channels 2 11 Speech testing graph view General description The Speech Graph screen displays the speech graph which includes SDT MCL UCL noted by a line blue left red right at the corresponding dB level For SRT and WRS SRS or WRS SRS with noise symbols will be shown based on the location corresponding to the dB level of presentation and the percentage of correct responses The grap...

Page 53: ...The Click n Get feature allows you to perform a test from the predefined legend simply by clicking the Apply Settings arrow button in the second column of the legend Click n Get loads all the relevant settings including the integrated speech files Pinning a test You can pin one test per measurement condition Note You can pin a test to the legend if you have not already pinned an identical test To ...

Page 54: ...to start the Speech test by familiarizing the patient with a specific word list before starting the actual test with a different word list Use Click n Get to load the desired starting point and simply switch to any word list you wish to use after the familiarization Storing data in a row To store data in a row click the dB field in the relevant row or press S on your keyboard The Info field The In...

Page 55: ...he following options appear Options Selected Point e g WRS Left Live AC Identifies the curve in the graph that you wish to edit Info If needed enter information of your choice 2 12 Speech feature boxes You can access a number of speech display options directly from the Speech main screen Feature boxes Pure Tone Data Displays the pure tone average for air conduction and bone conduction as well as t...

Page 56: ...at which the words were presented Msk Effective masking level dB EML used for contralateral masking SNR Signal to Noise Ratio PTA Pure Tone Average PTA AC Pure Tone Average for Air Conduction thresholds PTA BC Pure Tone Average for Bone Conduction thresholds AI Articulation Index based on the Count the dot method 56 Otometrics AURICAL Aud 2 Navigating in the OTOsuite Audiometry Module ...

Page 57: ...l Channel Continuous On When checked the stimulus will be continuously on and will turn off when you press the stim ulus button Transducer Insert Presents the stimulus through the insert earphones Phone Presents the stimulus through the headphones High Frequency Presents the stimulus through the high frequency headphones Routing Left Stimulus is routed to the left transducer Right Stimulus is rout...

Page 58: ...ting for each channel Test controls Test controls provide a means of operating the audiometer if you use the mouse and on screen options to perform tests To enable test controls select Tools Options Audiometry General On screen controls Controlling intensity and frequency and storing data The Arrow up button increases the intensity The Arrow down button decreases the intensity The Arrow left butto...

Page 59: ...nges heard compared to the number of intensity changes presented SISI data Data display in SISI screen Frequency The frequency which was presented dB The intensity The score Audiogram Displays pure tone audiogram Threshold Displays pure tone average SISI editing options Editing options Delete Deletes the data for a particular frequency for a particular ear Delete all Deletes the data for all the f...

Page 60: ...tone sounds equally loud to both ears of a subject are compared The test is applicable when there is a difference in hearing loss of at least 20 dB between the two ears at the pure tone test frequency 2 14 2 1 Navigating in ABLB The Control Panel Channel Continuous On When checked the stimulus will be continuously on and will turn off when you press the stimulus button Transducer Insert Presents t...

Page 61: ... indicators Indicates the stimulus type the transducer and the routing for each channel Test controls Test controls provide a means of operating the audiometer if you use the mouse and on screen options to perform tests To enable test controls select Tools Options Audiometry General On screen controls Controlling intensity and frequency and storing data Arrow up increases the intensity Arrow down ...

Page 62: ...ady tone with adjustable intens ity is presented to this ear until equal loudness with the reference ear is determined ABLB editing options Editing options Selected point e g 1000 Hz 90 75 dB Delete selected measurement Deletes the data for the frequency that is currently displayed Delete all at x e g 1000 Hz Deletes the data for that particular column when the frequency is currently set different...

Page 63: ...this remote region will be less than in the dead region and so the noise will be very effective in masking it Thus the signal threshold is expected to be markedly higher than normal Procedure 1 Select Tone in the Audiometry Module 2 Perform a pure tone test to register a pure tone audiogram 3 In Tone select TEN as masking noise and route it ipsi laterally so that both the tone and noise are presen...

Page 64: ...ement according to ANSI S3 1 The permissible noise level depends on the frequency and level of the stimulus that is being tested as well as other factors such as the transducer type 2 14 4 1 Selecting the FreeFit device in OTOsuite You must select your FreeFit device in the configuration wizard before you can use FreeFit for the first time 1 In OTOsuite click Tools Configuration Wizard and then cl...

Page 65: ... by anything such as clothing or hair 5 Open the audiometry control panel If the Ambient Noise Assessor is not already open click the button on the Audiometry toolbar 6 Press the power button on FreeFit If FreeFit does not connect ensure that your FreeFit has been selected in the PMM configuration wizard Also check the battery status of FreeFit See Charging Powering and Connection Status in the re...

Page 66: ...sed to calculate the maximum permissible noise level is based on use of the TDH39 with Peltor noise reduction 8 To see a live graphical display of ambient noise click the Show Details button The curve shows the maximum permissible ambient noise level for the selected stimulus The columns show the current measured noise for each 1 3 octave band between 125 Hz and 8 kHz Each column is green orange o...

Page 67: ...selected status will be stored when you store a point in the audiogram 2 14 4 3 Noise level indicators stored with measurements Tone audiometry When you make an audiogram using the Ambient Noise Assessor the background color behind each point in the audi ogram indicates the following A No background color The noise level was below the maximum permissible level B Yellow The measured ambient noise l...

Page 68: ...is status appear the same as measurements made without the Ambient Noise Assessor activated C Yellow The measured ambient noise level was above the maximum permissible noise level for the stimulus However the level is so low that it may be noise from the FreeFit itself rather than ambient noise See Minimum HTL per transducer type 69 D Green The noise level was below the maximum per missible level ...

Page 69: ...uli below the minimum level the ambient noise status indicator will be yellow Transducer Minimum HTL dB HL Bone 30 Supra Aural TDH 39 MX41 15 TDH39 with Peltor enclosure 0 Insert 10 2 15 Test controls keyboard mouse 2 15 1 PC keyboard controls You can open an overview of PC keyboard shortcuts from the OTOsuite Manuals file OTOsuite Manuals was installed on your PC when you installed OTOsuite You c...

Page 70: ...2 Navigating in the OTOsuite Audiometry Module 70 Otometrics AURICAL Aud ...

Page 71: ...s the likelihood that the client patient can anticipate when the stimulus will be presented For pediatric testing consider using a highchair which is a familiar environment for most children and will place them closer to eye level with the visual reinforcement toys Make sure if performing visual reinforcement audiometry that the reinforcing toys can be seen by the child A child cannot look over an...

Page 72: ...rtant that hygienic precautions are taken to protect the client from cross infection Be sure to follow any estab lished infection control procedures for the setting in which you are working Headphones Clean the headphones between patients e g with a non alcohol based antibacterial wipe such as Audiowipes Insert earphones Warning To prevent cross infection use new eartips when you test the next cli...

Page 73: ...ly at the low frequencies this reduces the need for masking 2 It is best to clip the insert earphone transducers behind the child or on the back of their clothing and then fit the foam eartip into the child s ears If the foam eartip is a little too large consider cutting it down to make it a little smaller Bone Oscillator Note For unmasked bone thresholds you can store binaural data Note If there ...

Page 74: ...nes position the other end of the bone oscillator headband over the patient s temple on the opposite side of the head so that the headband of the earphones and bone oscillator fit on the patient s head 74 Otometrics AURICAL Aud 3 Preparing for testing ...

Page 75: ...ransducer and desired routing sound level and frequency Make sure that threshold test THR is selected 9 Begin the test in the ear reported as the better hearing ear Tell the patient in which ear the test will begin 10 Start the testing at 1000 Hz 11 Start presenting the tone at a sound level that should be clearly audible to the patient to confirm that instructions for responding were understood P...

Page 76: ...f the patient s responses during testing Good Fair or Poor 4 1 2 Assessing pure tone or speech most comfortable loudness level MCL 1 Properly place the earphones Begin the test with the air conduction transducer 2 Instruct the patient that you are trying to find the level at which he she is most comfortable listening to the sounds 3 Make sure that the control panel of the OTOsuite software is set ...

Page 77: ...lity If the automated presentation speed of the recorded speech is too fast for the patient you can deliver the recor ded words one at a time by double clicking on the word in the word list You can also present the speech material using monitored live voice 7 If the patient responds to the initial sound level presented proceed with the test by decreasing the level in 10 dB steps until no response ...

Page 78: ...rding the test for example NU 6 word list 3A in the box to the left of the scores tab ular view or symbols graphical view 4 2 Special Tests 4 2 1 Performing Tone Decay using the Modified Carhart Method 1 Properly place the earphones Begin the test with the air conduction transducer 2 Give the patient a responder 3 Instruct the patient so that he she knows what to expect You will hear a continuous ...

Page 79: ...ent truly has a hearing loss in the poorer ear he she will only hear the presented tone in the better ear and will respond that the tone is present This is a negative Stenger response 8 If the patient does not truly have a hearing loss in the poorer ear he she will only hear the presented tone in the reportedly poorer ear As the patient is trying to appear as if he she has a hearing loss in that e...

Page 80: ...old 6 If the patient reports hearing the tone equally in both ears this is indicative of normal hearing 7 If the patient reports hearing the tone in the poorer ear this is indicative of a conductive hearing loss 8 If the patient reports hearing the tone in the better ear this is indicative of a sensorineural hearing loss 9 Store the test result in the Weber box 4 2 5 Performing Rinne 1 This test i...

Page 81: ...rence ear 5 Set the reference level Ch 1 6 Set the test level Ch 2 to 10 dB above the patient s threshold for that ear 7 Adjust the level of the test signal Ch 2 until the patient reports that the two signals sound equally loud 8 Store the data points 9 Repeat steps 5 to 8 for additional frequencies 10 If desired switch routing to test the opposite ear and repeat steps 5 to 8 4 2 7 Performing Shor...

Page 82: ...nnel Settings except Continuous On the Intensity or if the Reset but ton is clicked Reset Score Counter False Does not change the score even if Reset is clicked 4 3 2 Playing sound files with word lists Prepare playing 1 Use either Int CD or Int File as Sound Source 2 If Int CD is chosen select a CD drive in CD Drive Selection in the Options dialog or in the Player Panel It is import ant that an X...

Page 83: ...diometry tasks To prepare for off site sound field speech audiometry Enable portable sound field audiometry in the Configuration Wizard When you are at the site where you will perform off site sound field audiometry click Calibrate in the Speech Audi ometry control panel to open the Portable Sound Field Audiometry window Use this window to Calibrate one speaker first the primary signal then the se...

Page 84: ...need to calibrate the left speaker 7 Click Start calibration The primary signal is played 8 Use the Up and Down buttons to adjust the level until the sound level meter reads 70 dB and then click Accept Level The primary signal stops and the secondary signal is played 9 Again use the arrow buttons to adjust the level until the sound level meter reads 70 dB and then click Accept Level 10 If you are ...

Page 85: ... be kept away from the client area Warning Keep AURICAL Aud away from all liquids and sources of heat for detailed specifications see Oper ating environment 126 Warning It is recommended to install the unit in an environment that minimizes the amount of static electricity For example anti static carpeting is recommended 5 1 1 Requirements to noise in the test environment Audiometry testing does no...

Page 86: ...ies If your package is incomplete contact your local distributor 4 Check the Test Report Calibration Certificate make sure that the transducers headphones and bone oscillator are the correct ones and that they comply with the ordered calibration standards 5 3 Storing If you need to store AURICAL Aud before you put it into operation follow the guidelines below Store AURICAL Aud and accessories in t...

Page 87: ...h HI PRO 2 Desktop version Mounted on AURICAL speaker unit A AURICAL Aud with HI PRO 2 A HI PRO 2 power indicator and connectors for hearing instrument connection cables Rear view for attaching to mounting plate A Slot for attaching to mounting plate Otometrics AURICAL Aud 87 5 Unpacking and Installing ...

Page 88: ...er unit with speaker cover in place AURICAL speaker unit A Charger for AURICAL FreeFit B AURICAL speaker unit with speaker cover in place A AURICAL speaker unit with speaker cover removed 5 5 Connection panels 5 5 1 AURICAL Aud connection panel Caution Install OTOsuite on the PC before you connect to AURICAL Aud from the PC 88 Otometrics AURICAL Aud 5 Unpacking and Installing ...

Page 89: ...tal line out 90 E Sound field speaker output coaxial digital line out 90 F Sound field speakers built in amplifier output 90 G Insert earphones 91 H Headphones air conduction 91 I Patient Responder 91 J Bone oscillator 91 K Speaker Analog line output 91 L Line in 91 M Operator monitor headset headphones 91 N Operator monitor headset boom microphone 91 O Counseling and Simulations headphones 91 P T...

Page 90: ...xternal power supply into the Power socket in the connection panel 2 Plug the mains plug of the external power supply into an AC mains outlet with a three wire protective ground Sound field speaker output optical digital line out Optical connection for connecting to an external amplifier for sound field speaker s Currently not in use Sound field speaker output coaxial digital line out Coaxial conn...

Page 91: ...tion for a line in device e g CD player Caution When you connect other electrical equipment to AURICAL Aud remember that equipment that does not comply with the same safety standards as AURICAL Aud can lead to a general reduction in the system s safety level Operator monitor headset headphones If you are using headphones with the operator monitor headset plug the headphones into this socket The ja...

Page 92: ...being programmed indicating which side is active For standards and warning notes see Standards and Safety 115 PC Com light indicator This light indicator lights up green during self test when AURICAL Aud is powered on If the light indicator flashes the self test has failed and there is a communication error Power light indicator This light indicator lights up green when AURICAL Aud is powered on 5...

Page 93: ...communication between AURICAL FreeFit and the OTOsuite PMM module For a description of Bluetooth communication between PMM and AURICAL FreeFit see the AURICAL FreeFit User Manual Power supply connections Caution Install the OTOsuite Audiometry Module on the PC before you connect AURICAL Aud to the PC 24V dc out Double ended male connector for connecting the power supply to AURICAL Aud See AURICAL ...

Page 94: ...n See Connection panels 88 You can place AURICAL Aud on the desktop or hang it under the desktop or on the wall On the desktop 1 Place AURICAL Aud on the desktop 2 Follow the instructions in Connecting accessories and PC to AURICAL Aud 95 Under the desktop or on the wall Mount a mounting plate under the desktop or on the wall and attach AURICAL Aud to the mounting plate Tools are needed for mounti...

Page 95: ...to the PC with the USB cable supplied Caution To connect AURICAL Aud to the PC use the supplied USB cable The cable length must not exceed 3 m approx 10 feet 5 7 2 Mounting AURICAL Aud on the mounting plate 1 Click AURICAL Aud onto the mounting plate 5 8 AURICAL speaker unit installation A USB cable between AURICAL Aud and the PC B External power supply cable Note Connection cables for accessories...

Page 96: ...les 1 Fit the cables through the opening in the AURICAL speaker unit below the speaker 2 When you have connected all the cables to the AURICAL speaker unit place the speaker cover on the speaker The installation must be carried out in accordance with IEC 60601 1 1 plus addendum in the form of Part 1 General provisions 1 and UL 60601 1 CAN CSA C22 2 NO 601 1 90 The supplementary provisions on the r...

Page 97: ...supply cable into this socket 2 Fit the cable in the center cable guide on the right side of the speaker 3 When you have completed connecting the cables plug the external power supply cable into the mains outlet Connecting the 24V DC power supply cable to AURICAL Aud 1 Plug the power supply cable between the speaker and AURICAL Aud into this socket 2 Fit the cable in the right most cable guide on ...

Page 98: ...the AURICAL Aud USB connection cable into this socket 2 Fit the cable in the cable guide on the left side of the speaker 3 Plug the other end of the USB cable into USB socket no 3 on the AURICAL Aud connection panel 5 8 2 Connecting accessories and PC to AURICAL Aud 1 Connect the accessories to AURICAL Aud See Connection panels 88 2 Connect AURICAL Aud to the PC with the USB cable supplied Caution...

Page 99: ... Aud Use only the power supply specified in Technical Specifications Power supply 127 1 Connect the mains plug of the external power supply directly to an AC mains outlet with a three wire protective ground 2 Switch on the mains supply 3 The On Off indicator on AURICAL Aud lights green AURICAL Aud AURICAL Aud with HI PRO 2 Switching off AURICAL Aud 1 To switch off AURICAL Aud disconnect the power ...

Page 100: ...5 Unpacking and Installing 100 Otometrics AURICAL Aud ...

Page 101: ... be prompted to enter the relevant license keys Test Type Show test type Click to enable viewing any of these test types as a test tab selection on the Audi ometry test screens If a User Test is set up to include either of these tests and they have been dis abled in this screen you will be prompted to enable them here With AURICAL Aud SISI and ABLB can be used for actual testing The remaining test...

Page 102: ...ometry according to the recommendations of the British Society of Audiology Use Masking Threshold If the BSA masking threshold is needed click to enable SRT Designation You can define how SRT data is stored in NOAH by selecting the appropriate type of speech material designation This enables proper viewing in NOAH AUD Enable Portable Sound Field Audiometry Select to allow manual calibration of spe...

Page 103: ...ating to the test device select Help About Device 7 1 Reconnecting to the device If the control panel for a test type is shown and communication with the selected test device is interrupted a message appears stating that there is no longer connection to the device Click the Connect button on the Control Panel to reconnect to the selected test device 7 2 Updating device firmware If the OTOsuite sof...

Page 104: ...7 Communicating with the device 104 Otometrics AURICAL Aud ...

Page 105: ... Com light indicator lights up to indicate communication with the PC Caution Do not connect or disconnect a hearing instrument while the connector light indicator is lit The light indicator indicates that the connector is active and disconnecting may damage the hearing instrument Caution Even though the hearing instrument connectors are galvanically insulated from the PC and mains earth it is stil...

Page 106: ... RoomTune is installed on your PC when you install OTOsuite and you may be prompted to upgrade AURICAL Aud firm ware when you connect AURICAL Aud to the OTOsuite control panel 9 1 Microphone placement for use with RoomTune Note RoomTune requires the use of a RoomTune compatible talk back microphone Talk Back microphones pur chased before the release of OTOsuite version 4 75 are not compatible with...

Page 107: ...ation will then run in the background and you can access it from the system tray The RoomTune icon in the system tray 9 3 Using RoomTune in a new environment Before using AURICAL Aud speaker or speakers in a new environment you must run Full RoomTune You should also use Full RoomTune if you make significant changes to the environment such as moving the position of the speaker or adding a large num...

Page 108: ...h as warnings from various applications may cause sounds to be played by the default playback device You may need to disable the sound for warnings and other events 9 4 Using RoomTune to keep AURICAL Aud speakers in tune Once you have run Full RoomTune you have the option of running Quick RoomTune If small changes have been made to the environment where you are using AURICAL Aud such as moving the...

Page 109: ...equalization will be applied to the speakers 9 6 Using RoomTune to measure sound levels With the RoomTune application and the RoomTune compatible microphone you can also measure sound levels Note The sound level is measured for frequencies between 100 Hz and 10 000 Hz No filter is applied and there is no frequency weighting To show a live sound level measurement 1 Click on the RoomTune icon to ope...

Page 110: ...to run in the background even if no RoomTune window is open To close all RoomTune processes you must exit the application To exit RoomTune click on the RoomTune icon and then click Exit in the context menu 110 Otometrics AURICAL Aud 9 Tuning the AURICAL Aud speaker for use with third party applications ...

Page 111: ...L Aud cabinet 10 1 1 Fuses AURICAL Aud has no user accessible fuses AURICAL Aud with HI PRO 2 has no user accessible fuses 10 2 Maintenance AURICAL Aud requires no preventive maintenance except for regular calibration of the transducers See Calibration 112 10 3 Cleaning There are no specific requirements to sterilization or disinfection of the test device Cleaning the device Make sure that the ins...

Page 112: ... factory together with a Test Report Calibration Certificate The Test Report spe cifies the transducers that have been calibrated i e those which have been supplied together with the instrument according to which standards and the equipment used for calibration Results are listed for each transducer at all standard frequencies In general the instrument is calibrated in dB HL and dB masking level u...

Page 113: ...ersion of OTO suite was installed An extended version of data sets has been installed with the new version of OTOsuite Accept the error message This message only appears the first time the new version of OTO suite is launched There is no connection to the device The USB cable connecting the device to the PC was connected prior to installing OTOsuite This results in a Windows default driver being a...

Page 114: ...11 Troubleshooting 114 Otometrics AURICAL Aud ...

Page 115: ...n the European Union Do not dispose of these products as unsorted municipal waste You can return your device and accessories to Otometrics or to any Otometrics supplier You can also con tact your local authorities for advice on disposal Consult user manual for warnings and cautions Consult instructions for use Without HI PRO 2 Complies with Type B requirements of IEC60601 1 With HI PRO 2 Complies ...

Page 116: ...reeFit documentation 1 This class of equipment is allowed in domestic establishments when used under the jurisdiction of a health care pro fessional 2 AURICAL Aud is intended for diagnostic and clinical use by audiologists and other trained health care professionals in testing the hearing of their patients 3 To prevent cross infection use new eartips when you test the next client 4 Accidental dama...

Page 117: ...nes dropped on the floor Note that calibration has been performed only on the transducers supplied If you wish to use any other transducer for testing with the device please contact your local distributor first 15 Disposable accessories such as eartips should not be reused and must be replaced between patients to prevent cross infection 16 We recommend that the device should not be stacked with ot...

Page 118: ...according to local regulations 12 3 The OTOsuite Audiometry Module Complies with Medical Devices Directive 93 42 EEC and RoHS Directive 2011 65 EC Used in error message dialogs if software program fails See the detailed information in the dialog box 12 4 Manufacturer GN Otometrics A S Hoerskaetten 9 2630 Taastrup Denmark 45 45 75 55 55 7 45 45 75 55 59 www otometrics com 12 4 1 Responsibility of t...

Page 119: ...F Standard frequencies 125 12500 Hz Accuracy 0 03 FRESH noise stimulus Available in entire frequency range within the transducer specified range for SF 125 12500 Hz Accuracy 0 3 Narrow Band Noise masking Available for each stimulus frequency Frequency resolution 125 to 12500 Hz at standard frequencies Stimulus types Tone Warble Pulsed tone Pulsed warble FRESH Noise Frequency specific hearing asses...

Page 120: ...for moderate attenuator settings a warning sign will be displayed in OTOsuite when appropriate for levels above 100 dB HL Table 1 Offset from Effective Masking Level to Sound Pressure Level Frequency Hz 125 250 500 750 1000 1500 2000 3000 4000 6000 8000 9000 10000 11200 12500 Offset dB N A 53 37 32 31 29 30 29 27 31 27 26 26 25 25 This table indicates the number Offset to be added to the displayed...

Page 121: ...d speakers Type A calibration The output sound pressure level and frequency response are specified in terms of coupler level See table below for coupler ear simulator used The loudspeaker output is specified as measured under free field conditions at 1 m distance and on the axis of the loudspeaker Bone vibrator output is not corrected to obtain a free field equivalent sound force level uncorrected...

Page 122: ...ral earphone dBHL Test level for Circum aural and Insert earphone dBHL Allowed THD 125 250 75 65 2 5 315 400 90 80 2 5 500 5000 110 100 2 5 Specification of allowable distortion levels for bone conducted sound test level and distortion Frequency Hz Test level for bone vibration dBHL Allowed THD 250 400 20 5 5 500 800 50 5 5 1000 4000 60 5 5 For higher output levels than those specified in the tabl...

Page 123: ...ls or above normal skull size HB8 shall be applied HB8 is in compliance with ISO 389 For children and below normal skull size HB7 shall be applied HB7 provides a greater force required to accommodate smaller skull size For audiometric testing outside of noise attenuating test rooms Otometrics recommends using earphones which feature passive noise reduction For the applicable earphone models the at...

Page 124: ... AC 2 x 2 mono jacks 6 3 mm 1 4 inch BC 1 x mono jack 6 3 mm 1 4 inch SF power output 3 x terminals 3 x 40 W peak 8 Ω load SF line output 2 x 1 6 Vrms External inputs CD Analog line in 0 2 to 2 0 Vrms 10 kΩ 1 stereo 3 5 mm 1 8 inch jack Talk Back microphone Electret microphone Input voltage 0 002 to 0 02 Vrms Input resistance 2 21 kΩ 3 5 mm 1 8 inch jack USB 2 0 hub with 3 powered USB ports 24V DC...

Page 125: ...ly AURICAL Aud includes a feature which allows the operator to select the maximum output level from a bone oscillator Using this feature the maximum output may be set lower than the physically available output level installation option As the maximum available output level will result in significant distortion from the bone oscillator the specification below limits the speech output level to 60 dB...

Page 126: ... Compliant USB 2 0 Speed High speed Transport and storage Temperature 30 C to 60 C 22 F to 140 F Air humidity 10 to 90 non condensing Air pressure 500 hPa to 1060 hPa Operating environment Mode of operation Continuous Temperature 15 C to 35 C 59 F to 95 F Air humidity 30 to 90 non condensing Air pressure 700 hPa to 1060 hPa Operation in temperatures exceeding 20 C 4 F or 60 C 140 F may cause perma...

Page 127: ...MAINS CORD H05VV DK PLUG 8 71 80200 MAINS CORD H05VV UK PLUG 8 71 82700 POWER CABLE AUSTRALIA 8 71 86400 POWER CABLE CHINA 7 08 027 MAINS CORD H05VV CH PLUG 7 08 017 POWER CABLE SJ US HOSP PLUG 8 71 93600 1081 YC12 POWER CABLE JAPAN Standards Audiometer IEC 60645 1 Type 2 2010 IEC 60645 2 Type A 1993 ANSI S3 6 Patient Safety Complies with IEC 60601 1 Class 1 Type B UL 60601 1 CAN CSA C22 2 NO 601 ...

Page 128: ... C 22 F to 140 F Air humidity 10 to 90 non condensing Air pressure 500 hPa to 1060 hPa Operating environment Mode of operation Continuous Temperature 15 C to 35 C 59 F to 95 F Air humidity 30 to 90 non condensing Air pressure 980 hPa to 1040 hPa Operation in temperatures exceeding 20 C 4 F or 60 C 140 F may cause permanent damage 13 4 Accessories Standard accessories and optional accessories may v...

Page 129: ... an envir onment Emissionstest Compliance Electromagnetic environment guidance RF emissions CISPR 11 Group 1 AURICAL Aud uses RF energy only for its internal function Therefore its RF emissions are very low and are not likely to cause any interference in nearby electronic equipment RF emissions CISPR 11 Class B AURICAL Aud is suitable for use in all environments including domestic environments and...

Page 130: ... 5 s Mains power quality should be that of a typical commercial or hospital environment If the user of the AURICAL Aud requires continued operation during power mains interruptions it is recommended that the AURICAL Aud be powered from an uninterruptible power supply or a battery Power frequency 50 60 Hz magnetic field IEC 61000 4 8 3 A m 3 A m Power frequency magnetic fields should be at levels c...

Page 131: ...nd 800 MHz the separation distance for the higher frequency range applies Note 2 These guidelines may not apply in all situations Electromagnetic propagation is affected by absorption and reflection from structures objects and people a Field strengths from fixed transmitters such as base stations for radio cellular cordless telephones and land mobile radios amateur radio AM and FM radio broadcast ...

Page 132: ...o frequency of transmitter m 150 kHzto 80 MHz d 1 2 80 MHz to 800 MHz d 1 2 800 MHzto 2 5 GHz d 2 3 0 01 0 12 0 12 0 23 0 1 0 38 0 38 0 73 1 1 2 1 2 2 3 10 3 8 3 8 7 3 100 12 12 23 For transmitters rated at a maximum output power not listed above the recommended separation distance d in meters m can be estimated using the equa tion applicable to the frequency of the transmitter where P is the maxi...

Page 133: ...Cleaning 111 accessories 111 device 111 Client inspecting the ear 72 preparing for testing 72 Combined audiogram enabling disabling 15 Configuration Wizard 101 Connections bone oscillator 91 CD tape 91 coaxial digital speaker output 90 Counseling and Simulations head phones 91 external power supply 90 headphones 91 insert earphone 91 operator boom microphone 91 operator headphone 91 optical digita...

Page 134: ...g 14 Masking Assistant 17 enabling disabling 14 Masking types specifications 119 Measurement menu Monitoring 15 talk forward 16 Measurement menu Aud Monitoring 15 talk forward 16 Menu bar OTOsuite 13 Microphones operator boom microphone con nection 91 talk back microphone con nection 91 Monitor noise levels 64 Monitoring 15 N Navigating in Audiometry 75 Noise monitor environmental 64 O Off site sp...

Page 135: ...Aud 115 Signal types Tone 23 Warble 23 Silence Mode 26 SISI 81 Sound level measurement 109 Speaker coaxial digital output con nection 90 connections 90 Speaker connections 91 Special tests how to 78 Specifications accessories 128 Specifications technical 119 Speech test external sound source 45 47 graph view 52 scoring words 43 speech material 41 tabular view 49 50 terms and abbreviations 55 the c...

Page 136: ...2 headphone connections 91 insert earphone connections 91 specifications 123 Troubleshooting AURICAL Aud 113 U Unpacking the test device 86 Unpacking and installing AURICAL Aud 85 USB PC USB connection 89 USB connections 90 USB connections 90 User interface 75 Using AURICAL Aud speaker with fit ting software 106 V View menu audiogram legend 15 combined audiogram 15 frequency range 15 Masking Assis...

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