Audioscan Verifit manuals

Audioscan Verifit User Manual (155 pages)

Brand: Audioscan | Category: Health and hygiene | Size: 8.00 MB |

English

Table of contents

Audioscan Verifit

1

User's Guide 3.12

1

Table of Contents

2

1 About Verifit

6

SAFETY WARNINGS and NOTICES

7

Environmental safety

8

May 2015

10

Electronic User’s Guide

12

2 Getting Started

14

Microphone connection

15

General care instructions

16

Microphone care

16

Battery pill use and care

17

Monitor headphones

18

External peripherals

18

3 General Operation

20

Keypad keys

21

Menus, lists and buttons

22

Screen messages and Help

22

Software updating

23

4 General Setup

24

5 Networking

26

NOAH Service Port

27

Testing the NOAH service port

28

6 Single computer connection

29

Local printer setup

33

Printing to USB memory

33

Network printer setup

34

Printing to a network file

34

Storing and restoring data

36

Data storage using NOAH

37

8 Test Box Measures - Setup

38

Format

39

1996 or 2003 ANSI standard

39

ANSI test frequencies

40

Test box calibration facts

40

9 ANSI Hearing Aid Tests

45

ANSI test results

47

ANSI input-output curves

47

ANSI telecoil terminology

48

ANSI test loop test

50

Telecoil test results

50

10 Other Test Box Measures

52

Feedback suppression test

53

Directional function test

54

Directional ITE positioning

55

Directional BTE positioning

55

Multicurve procedure

57

Multicurve results

57

Battery drain test

58

Manual control procedure

59

11 Sensory loss simulator

62

12 On-Ear Measures - Setup

63

Max TM SPL setup

66

ABR nHL to eHL setup

67

Positioning the client

67

Positioning the probe tube

68

On-ear single or dual view

70

SPL or HL scale

71

Hide or show on-ear curves

71

On-ear directional testing

73

On-ear feedback test

74

On-ear noise reduction test

74

On-ear manual control

75

15 Occlusion Effect Test

78

16 RECD measurement

79

Measure RECD

80

RECD results

81

ANSI S3.46(2013) RECD

82

RECD protocols

82

RECD facts

84

17 Insertion Gain

85

Insertion gain in HL

86

Audiometric data entry

86

REUR measurement procedure

87

REAR measurement procedure

88

18 Speechmap

91

DSL 5.0 changes

92

NAL-NL1 in Speechmap

92

NAL-NL2 in Speechmap

92

Camfit in Speechmap

93

Using Speechmap

93

Speechmap Setup

94

Screen tour - aided screen

96

On-ear or Test box mode

96

Assessment data entry

101

Assessment data choices

102

Open fittings in Speechmap

105

FM fitting and verification

107

CROS fitting in Speechmap

108

Stimulus levels

112

Speechmap stimuli

112

Microphone location effects

113

Deep insertion compensation

114

Speech signal analysis

114

21 Viewport

115

Accessing Viewport tests

116

Viewport Audibility test

116

22 Troubleshooting

123

Test box speaker overdriven

125

Invalid on-ear calibration

126

Barcode scanner malfunction

126

23 Technical

129

Specifications

129

Sensory Loss Simulator

130

24 Glossary

132

25 References

137

26 Appendix 1

140

27 Appendix 2

143

1 Introduction

144

2 The test signals

144

2.1 Narrow-band signals

145

2.2 Broad-band signals

145

2.2.3 Real-speech signals

147

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