natus Madsen A450 - Reference Manual

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Madsen A450

Reference Manual

Doc. No.7-50-1840-EN/05

Part No.7-50-18400-EN

Main Page

Table of Contents3
Introduction6
The Otosuite Audiometry Module6
Noah7
About this Manual7
Typographical Conventions8
Navigation8
Intended Use9
Navigating in the Otosuite Audiometry Module10
The Audiometry Module Main Window10
Toolbar Icons and Menus11
File Menu12
Edit Menu12
View Menu12
Measurement Menu14
Tools Menu15
The Patient Responder Indicator15
The Masking Assistant15
The Control Panel17
The Stimulus Bar22
Test Controls23
The Tone Stimulus Bar24
The Speech Stimulus Bar24
The Tone Test Screen25
The Work Area in the Tone Screen25
The Audiogram26
Curves and Symbols Selection28
Selecting a Symbol or Curve28
Compare Audiograms29
Tone Feature Boxes29
Tone Editing Options31
Work-Flow Related Features32
Selecting Orientation32
Automatic Frequency/Level Shift When Storing32
Stimulus Duration33
Ear Shift Frequency and Level Setting33
Saving Non-Stimulus Channel as Masking33
The Speech Test Screen34
Creating and Editing the Speech Test Table35
Selecting Word or Phoneme Scoring35
Selecting Speech Stimulus39
Scoring Words Using Integrated Otosuite Speech Material41
Scoring Words Using External Sound Source43
Scoring Phonemes Using Integrated Otosuite Speech Material44
Scoring Phonemes Using External Sound Source46
Saving Source Levels for Speech Material47
Speech Editing Options - Tabular View47
Storing SNR for Speech Testing49
Speech Feature Boxes49
Safety When Using Live Speech50
Terms and Abbreviations Used in Speech Testing50
Special Tests51
Available Special Tests51
SISI (Short Increment Sensitivity Index)51
Navigating in SISI51
The Test Process - SISI54
ABLB (Alternate Binaural Loudness Balance)55
Navigating in ABLB55
The Test Process58
Test Controls (Keyboard, Mouse)58
PC Keyboard Controls58
Preparing for Testing59
Preparing the Test Environment59
Preparing the Test Equipment59
Listening Check60
Preparing the Client61
Inspecting the Client's Ear(S)61
Proper Transducer Placement61
Examples of Audiometric Testing63
Testing the Older Child or Adult Patient63
Assessing Pure Tone Threshold Using the Hughson/Westlake Procedure63
Assessing Pure Tone or Speech most Comfortable Loudness Level (MCL)64
Assessing Pure Tone or Speech Uncomfortable Loudness Level (UCL)64
Assessing Speech Reception Threshold (SRT) Using the Hughson/Westlake Procedure65
Assessing Word Recognition Score65
Special Tests66
Performing Tone Decay Using the Modified Carhart Method66
Performing a Pure Tone Stenger67
Performing Speech Stenger67
Performing Weber68
Performing Rinne68
Performing Alternate Binaural Loudness Balancing (ABLB) Test69
Performing Short Increment Sensitivity Index (SISI) Test69
Testing with Sound Files70
Playing Sound Files Without Word Lists70
Playing Sound Files with Word Lists70
Unpacking and Installing72
Requirements to the Location72
Requirements to Noise in the Test Environment72
Unpacking73
Storing73
Views of Madsen A45073
Madsen A450 Connection Panel74
Assembling Madsen A45076
Desktop or Wall-Mount Installation76
Connecting Accessories and PC to Madsen A45078
Powering Madsen A45078
Configuring the Audiometry Module79
Communicating with the Device81
Reconnecting to the Device81
Updating Device Firmware81
Maintenance and Calibration82
Service and Repair82
Fuses82
Maintenance82
Cleaning82
Calibration83
Troubleshooting84
Powering84
Software/Device Communication84
Standards and Safety85
Madsen A45085
Warnings, Cautions, and Notes89
Connector Warnings89
General Warnings90
General Cautions91
General Notes92
The Otosuite Audiometry Module92
Technical Specifications93
Accessories101
Notes on EMC (Electromagnetic Compatibility)104
Manufacturer109
Responsibility of the Manufacturer109
Index111

natus Madsen A450 - Reference Manual

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