Interacoustics AD629 Instructions For Use Manual page 26

SISI test
SISI is designed to test the ability to recognise 1 dB increase in intensity during a series of bursts of pure
tones presented 20 dB above the pure tone threshold for the test frequency. It can be used to differentiate
between cochlear and retro cochlear disorders as a patient with a cochlear disorder will be able to
perceive the increments of 1 dB, as where a patient with a retro cochlear disorder will not.
Function key
10
11
16
17
D-0133833-A – 2022/09
AD629 - Instructions for Use - EN
Description
Only available if High Frequency is available (optional license) on the AD629.
Selects the HF phone connected to the separate HF connectors.
Amplitude Modulation.
Start SISI test.
Stop SISI test.
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