Interacoustics affinity 2.0 - Table of Contents

Table of Contents
1 AC440 .............................................................................................................................. 1
1.1 About AC440 Module ..................................................................................................... 1
1.2 Launching AC440 with Databases ................................................................................. 2
1.2.1 Launching from OtoAccess™ ...................................................................................... 2
1.2.2 Launching AC440 from Noah....................................................................................... 3
1.2.3 Using the Tone Screen................................................................................................ 4
1.3 The Speech Screen Elements ...................................................................................... 10
1.3.1 Speech Audiometry in Graph Mode............................................................................ 13
1.3.1.1 Dual Speech Graphs................................................................................... 14
1.3.1.2 50% Discrimination Line .............................................................................. 14
1.3.1.3 Bönninghaus & Röser calculation ................................................................ 15
1.3.2 Speech Audiometry in Table Mode .............................................................. 16
1.3.2.1 The SRT table ............................................................................................ 16
1.3.2.2 The WR Table ............................................................................................ 17
1.4 Binaural speech........................................................................................................... 18
1.5 Full 2(4) channel Speech in noise................................................................................ 19
1.6 Counselling Tab .......................................................................................................... 21
1.6.1 Sound Studio............................................................................................................ 21
1.7 Clinical Application of the AC440 Tests ...................................................................... 22
Air Conduction Audiometry .................................................................................................... 22
1.7.1 High Frequency Audiometry ...................................................................................... 24
1.7.2 Multi Frequency Audiometry ...................................................................................... 25
1.7.3 Bone Conduction Audiometry .................................................................................... 26
1.7.4 Masking 27
1.7.5 Speech Audiometry................................................................................................... 28
1.7.5.1 Speech Reception Threshold (SRT) in Table Mode....................................... 30
1.7.5.2 Word Recognition (WR) in table mode ......................................................... 31
1.7.5.3 Speech Testing with a Microphone .............................................................. 32
1.7.5.4 Speech Testing with an external CD Player .................................................. 33
1.7.5.5 Speech testing with Wave Files ................................................................... 34
1.7.6 Masking Level Difference (MLD) ................................................................................ 36
1.7.7 Master Hearing Aid (MHA)......................................................................................... 38
1.7.8 Hearing Loss Simulation (HLS) .................................................................................. 40
1.7.9 Short Increment Sensitivity Index ............................................................................... 42
1.7.10 Weber .................................................................................................................. 44
1.7.11 Knaster .................................................................................................................. 45
1.7.12 ABLB/Fowler ............................................................................................................ 47
1.7.13 Stenger Test............................................................................................................. 48
1.7.14 TEN Test .................................................................................................................. 50
1.7.15 QuickSIN .................................................................................................................. 51
1.7.16 Tone Decay.............................................................................................................. 53
1.7.17 ANL Test
18
............................................................................................................... 56
1.7.18 SIQ Test .................................................................................................................. 61
1.7.19 SIN Test .................................................................................................................. 63