audioscan verifit

To Next Page

To Previous Page

Verifit

Position the probe tip over the reference microphone

Hold probe dock with microphone to be calibrated facing speaker.

Typical calibration curve. Level may be shifted +/- 5dB.

Main Page

Default Chapter2
- Table of Contents2
1 About Verifit6
- Product Description6
- Accessories12
- Associated Items and Supplies12
- SAFETY WARNINGS and NOTICES13
- Environmental Safety14
- Declaration of Electromagnetic Compatibility (EMC)14
- Warranty, Trademarks, Acknowledgments15
- EC Declaration of Conformity17
- Electronic User's Guide18
- How to Avoid Undesirable Side Effects18
2 Getting Started20
- Office Setups20
- Unpacking and Connecting20
- Microphone Connection22
- General Care Instructions24
- Microphone Care24
- Mouse and Keyboard25
- Monitor Headphones25
- External Peripherals27
3 General Operation28
- Switching ON/OFF28
- Input Device Operation28
- Network Connection30
- Printer Connection31
- Menus, Lists and Buttons32
- Screen Messages and Help32
- Software Updating32
4 General Setup34
- Date and Time Setup34
- Display Settings34
- Saving Test Setup34
5 On-Ear Measures - Setup36
- External Sound Field Speaker Setup36
- On-Ear Calibration Facts37
- Calibration of On-Ear Probe Microphone37
- Calibration Check for Probe Module39
- Max TM SPL Setup40
- ABR Nhl to Ehl Setup40
- Positioning the Client40
- Positioning the Probe Tube41
6 On-Ear Measures Screen Setup43
- On-Ear Single or Dual View43
- Graph, Table or 2Cc Target Format43
- SPL or HL Scale43
- Hide or Show On-Ear Curves43
7 Speechmap45
- Speechmap Facts45
- DSL 5 in Speechmap45
- NAL-NL1 in Speechmap46
- NAL-NL2 in Speechmap46
- Camfit in Speechmap46
- Using Speechmap47
- Speechmap Setup47
- Screen Tour - Unaided Screen49
- Screen Tour - Aided Screen50
- On-Ear or Test Box Mode50
- SII Calculation in Speechmap51
- Using Custom Stimuli in Speechmap51
- Creating WAV Files for Speechmap53
8 Speechmap Fitting Procedures55
- Speechmap Screen Choices55
- Data Entry57
- Fitting to Targets for Soft Speech57
- Fitting to Targets for Average Speech58
- Adjusting the Maximum Output Level59
- Open Fittings in Speechmap60
- Verifying Frequency Compression/ Frequency-Lowering Hearing Instruments in Speechmap61
- Binaural Fitting in Speechmap62
- CROS Fitting in Speechmap63
- T-Loop Fitting and Verification in Speechmap64
- Tele-Test Fitting and Verification in Speechmap65
- FM Fitting and Verification67
- How to Verify with Calibrated 'S' and 'SH' Stimuli67
9 Speechmap Technical Details69
- Wideband Measurements in Speechmap69
- Speechmap Stimuli69
- Stimulus Spectra70
- Microphone Location Effects72
- Deep Insertion Compensation72
- Speech Signal Analysis73
10 On-Ear Instrument Measures74
- On-Ear Directional Test Overview74
- On-Ear Directional Testing74
- On-Ear Feedback Test75
- On-Ear Noise Reduction Test75
- On-Ear Noise Reduction Stimuli76
- On-Ear Manual Control76
- Sound Level Meter Using On-Ear Microphones77
11 WRECD Measurement78
- Calibration of WRECD Transducer78
- Measure WRECD79
- WRECD Results80
- WRECD Protocols81
- WRECD Facts82
12 Occlusion Effect Test83
- Occlusion Effect Measurement83
13 Sensory Loss Simulator84
- Sensory Loss Simulator Description84
- Sensory Loss Simulator Operation84
14 Insertion Gain86
- Insertion Gain in SPL86
- Insertion Gain in HL87
- Audiometric Data Entry88
- REUR Measurement Procedure89
- REAR Measurement Procedure90
- SII Calculation in Insertion Gain90
- CROS Fitting Using Insertion Gain91
- Verifit ® User's Guide Version 4.8 © November92
15 Test Box Measures - Setup93
- Test Box Screen93
- Format95
- Scale95
- Hide or Show Test Box Curves95
- ANSI Test Frequencies96
- Test Box Calibration Facts97
- Calibrating Test Box Reference Microphone97
- Calibration Check for Coupler Microphone98
- Coupling for Binaural/Wideband Tests99
- Positioning HI for Binaural/Wideband Tests99
- Coupling for ANSI/IEC Tests100
- Positioning HI for ANSI/IEC Tests101
16 ANSI/IEC Hearing Aid Tests103
- ANSI S3.22-2003 and ANSI S3.22-2009 Facts103
- ANSI 2003 and 2009/IEC Tests103
- ANSI Test Results104
- ANSI Input-Output Curves104
- ANSI Telecoil Terminology105
- ANSI Telephone Simulator (TMFS) Test105
- ANSI Test Loop Test106
- Telecoil Test Results107
17 Other Test Box Measures108
- Harmonic Distortion108
- Noise Reduction108
- Noise Reduction Stimuli109
- Directional Function Test109
- Directional ITE Positioning110
- Directional BTE Positioning110
- Test Box Directional Procedure111
- Multicurve Procedure112
- Multicurve Results112
- Spectral Analysis in Multicurve113
- Battery Drain Test113
- Manual Control Procedure114
- Sound Level Meter Using Manual Control115
18 Networking117
- Networking Standards117
- Network Setup117
- Remote Operation119
- Changing the Remote Operation Settings120
- Teleaudiology120
- Changing the Teleaudiology Settings120
- NOAH Service Port121
- Changing the NOAH Service Port121
- Testing the NOAH Service Port122
- Web Service Port122
19 Single Computer Connection124
- Automatic Connection (Recommended)124
- Static Connection124
20 Printing and Storing Results126
- Storing Data in NOAH126
- Printing Results126
- Printing Setup126
- Printer Connection127
- Verifit ® User's Guide Version 4.8 © November127
- Printer Types128
- HP Printer128
- Custom Printer128
- File Output129
- Page Setup129
- Windows-Shared Printers and Folders131
- Network Printer133
- Web Browser Screen Capture133
- Session Setup134
- Storing and Restoring Session Files135
21 Troubleshooting137
- Self Test Failures137
- Initialize Function137
- Inconsistent Levels in Speech Stimulus138
- Test Box High Distortion or Noise138
- Test Box Curves Inconsistent138
- Test Box Curves Differ from Specifications138
- Test Box Speaker Overdriven139
- No Test Box Reference MIC. Detected139
- Invalid Test Box Calibration139
- Unable to Calibrate Test Box Microphone139
- No On-Ear Ref. MIC. Detected140
- Invalid On-Ear Calibration140
- Unable to Calibrate On-Ear Microphone140
- Sound Field Speaker Overdriven140
- Binaural Tests Run Twice141
- Invalid Binaural Equalization141
- Invalid WRECD Transducer Coupler Calibration141
- Invalid RECD Real Ear Measurement141
- Headphone High Distortion or Noise142
22 Technical Specifications143
23 Glossary150
24 References155
- Manufacturer Disclosure Statement for Medical Device Security158
25 Appendix 1158

audioscan verifit - Page 38

Table of Contents

Related product manuals