Audioscan Verifit 2 Bedienungsanleitung Seite 3
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Verifit
®
User's Guide Version 4.2 © June 2015
On-ear or Test box mode....................................................................................................................................................50
SII calculation in Speechmap.............................................................................................................................................51
Using custom stimuli in Speechmap..................................................................................................................................51
Creating WAV files for Speechmap..................................................................................................................................53
8 Speechmap Fitting Procedures............................................................................................................................................55
Speechmap screen choices.................................................................................................................................................55
Data entry...........................................................................................................................................................................57
Fitting to targets for soft speech.........................................................................................................................................57
Fitting to targets for average speech .................................................................................................................................58
Adjusting the Maximum Output Level..............................................................................................................................59
Open fittings in Speechmap...............................................................................................................................................60
Verifying Frequency Compression/ Frequency-Lowering Hearing Instruments in Speechmap......................................61
Binaural fitting in Speechmap...........................................................................................................................................62
CROS fitting in Speechmap...............................................................................................................................................63
T-Loop fitting and verification in Speechmap..................................................................................................................64
Tele-test fitting and verification in Speechmap................................................................................................................65
FM fitting and verification.................................................................................................................................................66
How to Verify with Calibrated 'S' and 'SH' Stimuli..........................................................................................................66
9 Speechmap Technical Details..............................................................................................................................................68
Wideband measurements in Speechmap............................................................................................................................68
Speechmap stimuli.............................................................................................................................................................68
Stimulus spectra..................................................................................................................................................................69
Microphone location effects...............................................................................................................................................70
Deep insertion compensation.............................................................................................................................................70
Speech signal analysis........................................................................................................................................................71
10 On-Ear Instrument Measures.............................................................................................................................................72
On-ear directional test overview........................................................................................................................................72
On-ear directional testing...................................................................................................................................................72
On-ear feedback test...........................................................................................................................................................73
On-ear noise reduction test.................................................................................................................................................73
On-ear manual control........................................................................................................................................................74
Sound level meter using on-ear microphones....................................................................................................................74
11 WRECD measurement.......................................................................................................................................................76
Calibration of WRECD Transducer...................................................................................................................................76
Measure WRECD ..............................................................................................................................................................76
WRECD results..................................................................................................................................................................78
WRECD protocols..............................................................................................................................................................78
WRECD facts.....................................................................................................................................................................80
12 Occlusion Effect Test.........................................................................................................................................................81
Occlusion effect measurement...........................................................................................................................................81
13 Sensory loss simulator.......................................................................................................................................................82
Sensory loss simulator description.....................................................................................................................................82
Sensory loss simulator operation.......................................................................................................................................82
14 Insertion Gain.....................................................................................................................................................................84
Insertion gain in SPL..........................................................................................................................................................84
Insertion gain in HL...........................................................................................................................................................85
Audiometric data entry.......................................................................................................................................................86
REUR measurement procedure..........................................................................................................................................87
REAR measurement procedure..........................................................................................................................................88
SII calculation in Insertion gain.........................................................................................................................................88
CROS fitting using Insertion gain......................................................................................................................................89
15 Test Box Measures - Setup................................................................................................................................................91
3
- Audioscan Verifit 1
- User's Guide 4.2 1
- Table of Contents 2
- 1 About Verifit 6
- 47 – 63 Hz 1.35 – 0.53 A 7
- Component Description 9
- Audioscan update USB stick 9
- Quickstart setup guide 9
- Test Box 10
- Accessories 12
- SAFETY WARNINGS and NOTICES 13
- Environmental safety 14
- Electronic User’s Guide 18
- 2 Getting Started 20
- Microphone connection 21
- General care instructions 23
- Microphone care 24
- Mouse and keyboard 24
- Monitor headphones 24
- External peripherals 26
- 3 General Operation 28
- Network connection 30
- Menus, lists and buttons 32
- Screen messages and Help 32
- Software updating 32
- 4 General Setup 34
- 5 On-Ear Measures - Setup 36
- On-ear calibration facts 37
- Max TM SPL setup 40
- ABR nHL to eHL setup 40
- Positioning the client 40
- Positioning the probe tube 41
- 42
- On-ear single or dual view 43
- SPL or HL scale 43
- Hide or show on-ear curves 43
- 7 Speechmap 45
- NAL-NL1 in Speechmap 46
- NAL-NL2 in Speechmap 46
- Camfit in Speechmap 47
- Using Speechmap 47
- Speechmap Setup 47
- Screen tour - aided screen 50
- On-ear or Test box mode 50
- Speechmap screen choices 55
- Data entry 57
- Open fittings in Speechmap 60
- CROS fitting in Speechmap 63
- FM fitting and verification 66
- Speechmap stimuli 68
- Stimulus spectra 69
- Microphone location effects 70
- Deep insertion compensation 70
- Speech signal analysis 71
- On-ear directional testing 72
- On-ear feedback test 73
- On-ear noise reduction test 73
- On-ear manual control 74
- 11 WRECD measurement 76
- WRECD protocols 78
- WRECD results 78
- WRECD facts 80
- 12 Occlusion Effect Test 81
- 13 Sensory loss simulator 82
- 14 Insertion Gain 84
- Insertion gain in HL 85
- Audiometric data entry 86
- REUR measurement procedure 87
- REAR measurement procedure 88
- 15 Test Box Measures - Setup 91
- Format 93
- ANSI test frequencies 94
- Test box calibration facts 95
- Coupling for ANSI tests 98
- 16 ANSI Hearing Aid Tests 101
- ANSI test results 102
- ANSI input-output curves 102
- ANSI telecoil terminology 103
- ANSI test loop test 104
- Telecoil test results 106
- 17 Other Test Box Measures 107
- Directional function test 108
- Directional ITE positioning 108
- Directional BTE positioning 109
- Multicurve procedure 111
- Multicurve results 111
- Battery drain test 112
- Manual control procedure 113
- 18 Networking 116
- Remote Operation 118
- NOAH Service Port 119
- Testing the NOAH service port 120
- Web Service Port 120
- Static connection 122
- Storing data in NOAH 124
- Printing results 124
- Printing setup 124
- Printer connection 125
- Printer types 126
- HP printer 126
- Custom printer 126
- File output 127
- Page setup 127
- Network printer 131
- Web browser screen capture 131
- Session setup 132
- 21 Troubleshooting 135
- Test box speaker overdriven 137
- Invalid on-ear calibration 138
- Invalid binaural equalization 139
- 22 Technical Specifications 140
- Sensory Loss Simulator 144
- June 2015 145
- 23 Glossary 147
- 24 References 152
- 25 Appendix 1 155
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