Calibration - Interacoustics Affinity 2.0 Additional Information

2.0
Affinity Additional Information
4) The reference microphone on the headset monitors the amplitude of the signal reaching the hearing
aid from the loudspeaker.
If the input level is louder or softer than the desired level the reference microphone will turn the
volume up or down accordingly.
Reference microphone
2.6.2

Calibration

Sound is affected when passed through a small probe tube. This is taken into account by the probe tube
calibration. The calibration process involves aligning the reference microphone and probe tube microphone
to account for any differences. This ensures that once positioned the differences which are occurring are not
caused by the hardware.
The calibration procedure should be performed at least once a day or per patient when changing the tube.
•
Perform the tube calibration by clicking the calibration button in the front screen
•
A pop-up will then ask whether or not the calibration should be performed with the SPL probe used
for RECD measure.
being used for the RECD measurement (as per section 2.7.4.2)
You should always choose "Regular Probe", unless the SPL probe is
Page 158