Affinity
2.0
Additional Information Page 93
2) Select the default start Low pass filters and/or High pass filters:
In Normal hearing level for gain calculation you can select a certain dB level which should normally be
similar to the level of real speech (typically 60 dB). Using this level the system calculates the level of
gain the hearing aid needs to provide in order to be audible through the Knaster noise.
Select from the options shown below:
Under Monitor one or both of the channels may be ticked if monitoring is preferred. The level of the
monitoring can be set using the slider.
3) If Wave files are chosen as input you can browse for them by clicking Browse. If a group of wave files
are already chosen and you wish to browse for new ones, click Clear. The Input level of the wave files
can be adjusted to the left using the slider.
Keyboard
To enter the Keyboard options for Knaster testing unfold the Knaster options and click Keyboard. Since the
procedure for setting up the keyboard buttons for Knaster testing is identical to the procedure for the setting
up keyboard buttons for tone audiometry, please see section 1.7.2.2 for a description.
Medium low/high pass filtering
Major low/high pass filtering