Calibration - Interacoustics Affinity 2.0 Additional Information

4) The ref erence microphone on the headset monitors the amplitude of the signal reaching the hearing
aid f rom the loudspeaker.
If the input level is louder or sof ter than the desired level the ref erence microphone will turn the
volume up or down accordingly.
Reference microphone
2.5.2

Calibration

Sound is af f ected when passed through a small probe tube. This is considered by the probe tube calibration.
The calibration process involves aligning the ref erence microphone and probe tube microphone to account
f or any dif f erences. This ensures that once positioned the dif ferences which are occurring are not caused by
the hardware.
The calibration procedure should be perf ormed at least once a day or per patient when changing the tube.
• Perf orm the tube calibration by clicking the calibration button in the f ront screen
A pop-up will then ask whether the calibration should be perf ormed with the SPL probe used f or
•
RECD measure.
used for the RECD measurement (as per section 2.7.4.2)
D-0004576-Q – 2022/05
Affinity/Equinox2.0 – Additional Information
You should always choose "Regular Probe", unless the SPL probe is being
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