audioscan Verifit VF-2 - Page 5

Verifit
®
User's Guide Version 3.12  November 2015
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
26 Appendix 1.......................................................................................................................................................................143
Manufacturer Disclosure Statement for Medical Device Security.................................................................................143
27 Appendix 2.......................................................................................................................................................................146
AudioNote 2.1 VERIFIT and RM500SL Test Signals and Analysis..............................................................................146
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