Operating Instructions MA 42Operating_Instructions_8100460-6_MA42_e_15a 1 8100460-6 1/15Table of Content ............................................................................... Page1 Introduction ............................................................................................. 32 Description ............................................................................................... 43 Getting Started ........................................................................................ 53.1 Unpacking the instrument ..................................................................... 53.4 Rear panel connections .......................................................................... 74. Working with the MA 42 ......................................................................... 84.1 Using the control panel of the MA 42 .................................................... 84.2 Functionality of Operating Elements ....................................................... 94.3 The display of the MA 42..................................................................... 115 Measurement Methods of Audiometry .................................................... 125.1 Tone Audiometry................................................................................. 125.1.1 Pure-tone Testing .......................................................................... 135.1.2 High tone audiometry (optional) .................................................... 165.1.2 Bone conduction testing ............................................................... 165.1.3 Sound Field Testing ....................................................................... 175.1.4 Uncomfortable Loudness (UCL) Testing .......................................... 185.1.5 Most Comfortable Loudness (MCL) ................................................ 185.1.6 The SISI Test.................................................................................. 185.1.7 The Threshold Decay (Carhart) Test ................................................ 215.1.8 ABLB ............................................................................................ 225.1.9 MLB.............................................................................................. 225.1.10 Stenger ....................................................................................... 235.1.11 Langenbeck ................................................................................ 245.2 Speech Audiometry ............................................................................. 255.2.1 Input Calibration ........................................................................... 255.2.2 Performing the Test....................................................................... 265.2.3 Speech Audiometry with Microphone or CD Player ........................ 275.2.4 Speech Audiometry with WAVE Files ............................................. 285.2.5 Masking ....................................................................................... 295.2.6 Speech in noise tests ..................................................................... 295.2.7 Master Hearing Aid (MHA) ............................................................ 305.3 Monitoring .......................................................................................... 315.4 Talk Forward ....................................................................................... 31