D-0101246-Q – 2022/05
Callisto™ Instructions for Use - US Page 28
3.2.1 Speech audiometry in graph mode
Graph mode presentation settings under “Test Symbols” in the lower lef t corner and in the presentation
options (Ch1 and Ch2) shows where you can adjust the test parameters during the test.
1) The graph: The curves of the recorded speech graph will be displayed on your screen.
The x-axis shows the intensity of the speech signal and the y-axis shows the score in percent.
The score is also displayed in the black display in the upper part of the screen, along with a word
counter.
2) The norm curves illustrate norm values for S (Single syllabic) and M (Multi syllabic) speech material
respectively. The curves can be edited according to individual preferences in the AC440 setup.
3) The shaded area illustrates how high in intensity the system will allow. The Extended Range +20 dB
button can be pressed to go higher. The maximal loudness is determined by the transducer
calibration.
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