Advanced Rejection - Interacoustics Eclipse Additional Information

Eclipse Additional Information Page 22

3.4.3.1 Advanced Rejection

Advanced EEG settings can be entered by double clicking on the EEG curve. It can be useful to change the
advanced rejection during the recording e.g. to avoid rejection taking place due to bone conductor stimuli ar-
tefacts.
1. Specify the time range over which normal rejection is applied
In the advanced rejection view the time range is set, this avoids a sweep being rejected when an artefact
(e.g. stimulus artefact) occurs outside the specified range. Simply grab the vertical lines with the mouse and
move them along the time axis (see 1 above). The grey area indicates the area where the rejection is disa-
bled.
Note The Rejection disabled areas cannot exceed the Fmp range as this is used for the Fmp and Residual
noise calculation. If you need to adjust the window further, the Fmp range must be changed first, which is
done in the Auto Protocol Setup.
Note if the grey areas turn red, the recording circuits have been overloaded and to safeguard incorrect re-
cordings all sweeps are rejected. Should you choose to overrule the protection, check the box Disable re-
jection (for eABR only).
2. Fine tuning the rejection level
Simply grab one of the horizontal lines with the mouse and move the rejection level to match the desired
value (see section above).
The current rejection level is shown to the left on the curve and updated while moving the horizontal lines.
Use the Input Level Display arrows to zoom into the rejection level for more precise rejection level place-
ment. Once done, click Ok to save rejection level to the current test protocol.