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Verifit VF-1
audioscan Verifit VF-1 User Manual
158 pages
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Audiosca
n Ve
rifit
®
User's
Guide
3.12
Novemb
er
2015
2
Table of Contents
Default Chapter
2
Table of Contents
2
1 About Verifit
6
New in this Software Release
6
Product Description
6
Associated Items and Supplies
7
SAFETY WARNINGS and NOTICES
7
Environmental Safety
9
Declaration of Electromagnetic Compatibility (EMC)
9
Warranty, Trademarks, Acknowledgments
10
EC Declaration of Conformity
11
Electronic User's Guide
12
How to Avoid Undesirable Side Effects
12
2 Getting Started
14
Unpacking and Connecting
14
Microphone Connection
15
General Care Instructions
16
Microphone Care
16
Battery Pill Use and Care
17
Mouse, Keyboard, Barcode Scanner
18
Monitor Headphones
18
External Peripherals
19
3 General Operation
21
Input Device Operation
21
Barcode Data Input
21
Keypad Keys
22
Menus, Lists and Buttons
23
Screen Messages and Help
23
Software Updating
24
4 General Setup
25
Date and Time Setup
25
Display Settings
25
Saving Test Setup
25
5 Networking
27
Networking Requirements
27
Networking Setup
27
NOAH Service Port
28
Changing the NOAH Service Port
28
Testing the NOAH Service Port
29
6 Single Computer Connection
30
Automatic Connection (Recommended)
30
Static Connection
30
7 Printing and Storing Results
32
Internal Printer Paper Loading
32
Barcodes, Tabular Data, Headers and Comments on Printouts
33
Local Printer Setup
34
Printing to USB Memory
34
Network Printer Setup
35
Printing to a Network File
35
Storing and Restoring Data - Setup
36
Storing and Restoring Data
37
Data Storage Using NOAH
38
8 Test Box Measures - Setup
39
Test Box Screen
39
Format
40
Scale
40
Hide or Show Test Box Curves
40
1996 Or 2003 ANSI Standard
40
ANSI Test Frequencies
41
Test Box Calibration Facts
41
Calibrating Test Box Reference Microphone
42
Calibration Check for Coupler Microphone
43
Coupling the Hearing Instrument for ANSI Tests
44
Coupling the Hearing Instrument for Test Box Speechmap
44
Positioning the Hearing Instrument
45
9 ANSI Hearing Aid Tests
47
ANSI S3.22-1996 Facts
47
ANSI S3.22-2003 Facts
47
ANSI 1996 Linear and AGC Tests
48
ANSI 2003 Linear and AGC Tests
48
ANSI Test Results
49
ANSI Input-Output Curves
49
ANSI Telecoil Terminology
50
ANSI Telephone Simulator (TMFS) Test
51
ANSI Test Loop Test
52
Telecoil Test Results
52
10 Other Test Box Measures
54
Harmonic Distortion
54
Noise Reduction
54
Feedback Suppression Test
55
Directional Function Test
56
Directional ITE Positioning
57
Directional BTE Positioning
57
Test Box Directional Procedure
58
Multicurve Procedure
59
Multicurve Results
59
Spectral Analysis in Multicurve
60
Battery Drain Test
60
Manual Control Procedure
61
Sound Level Meter Using Manual Control
62
11 Sensory Loss Simulator
64
Sensory Loss Simulator Description
64
Sensory Loss Simulator Operation
64
12 On-Ear Measures - Setup
65
External Sound-Field Speaker Setup
65
On-Ear Calibration Facts
65
Calibration of On-Ear Probe Microphone
66
Calibration Check for Probe Module
67
Max TM SPL Setup
68
ABR Nhl to Ehl Setup
69
Positioning the Client
69
Positioning the Probe Tube
70
13 On-Ear Measures Screen Setup
72
On-Ear Single or Dual View
72
Graph, Table or 2Cc Target Format
73
SPL or HL Scale
73
Hide or Show On-Ear Curves
73
14 On-Ear Instrument Measures
75
On-Ear Directional Test Overview
75
On-Ear Directional Testing
75
On-Ear Feedback Test
76
On-Ear Noise Reduction Test
76
On-Ear Manual Control
77
Sound Level Meter Using On-Ear Microphones
78
15 Occlusion Effect Test
80
Occlusion Effect Measurement
80
16 RECD Measurement
81
Calibration of RECD Transducer
81
Measure RECD
82
RECD Results
83
Ansi S3.46(2013) Recd
84
RECD Protocols
84
RECD Facts
86
17 Insertion Gain
87
Insertion Gain in SPL
87
Insertion Gain in HL
88
Audiometric Data Entry
88
REUR Measurement Procedure
89
REAR Measurement Procedure
90
SII Calculation in Insertion Gain
91
CROS Fitting Using Insertion Gain
91
18 Speechmap
93
Speechmap Facts
93
DSL 5.0 in Speechmap
93
DSL 5.0 Changes
94
NAL-NL1 in Speechmap
94
NAL-NL2 in Speechmap
94
Camfit in Speechmap
95
Using Speechmap
95
Speechmap Setup
96
Screen Tour - Unaided Screen
97
Screen Tour - Aided Screen
98
On-Ear or Test Box Mode
98
SII Calculation in Speechmap
99
Using Custom Stimuli in Speechmap
99
Creating WAV Files for Speechmap
101
19 Speechmap Fitting Procedures
103
Assessment Data Entry
103
Assessment Data Choices
104
Fitting to Targets for Soft Speech
105
Fitting to Targets for Loud Sounds
106
Fitting to Targets for MID-Level Speech
106
Open Fittings in Speechmap
107
Verifying Frequency Compression/ Frequency-Lowering Hearing Instruments in Speechmap
107
FM Fitting and Verification
109
CROS Fitting in Speechmap
110
T-Loop Fitting and Verification in Speechmap
111
20 Speechmap Technical Details
114
Speechmap Stimuli
114
Stimulus Levels
114
Microphone Location Effects
115
Deep Insertion Compensation
116
Speech Signal Analysis
116
21 Viewport
117
Viewport Setup
117
Accessing Viewport Tests
118
Viewport Audibility Test
118
Viewport Test Box Directional Test
119
Viewport Test Box Feedback Test
122
Viewport On-Ear Feedback Test
123
22 Troubleshooting
125
Self Test Failures
125
Initialize Function
125
Test Box High Distortion or Noise
126
Test Box Curves Inconsistent
126
Test Box Curves Differ from Specifications
126
Test Box Speaker Overdriven
127
No Test Box Reference MIC. Detected
127
Invalid Test Box Calibration
127
No On-Ear Ref. MIC. Detected
127
Invalid On-Ear Calibration
128
Sound-Field Speaker Overdriven
128
Invalid RECD Transducer Coupler Calibration
128
Invalid RECD Real Ear Measurement
129
Barcode Scanner Malfunction
129
23 Technical Specifications
132
24 Glossary
135
25 References
140
Manufacturer Disclosure Statement for Medical Device Security
143
26 Appendix 1
143
Audionote 2.1 VERIFIT and RM500SL Test Signals and Analysis
146
27 Appendix 2
146
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audioscan Verifit VF-1 Specifications
General
Brand
audioscan
Model
Verifit VF-1
Category
Measuring Instruments
Language
English
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