–
Make sure that the frequency is correct.
5. Begin the test in the ear with the lower PTA or SRT.
6. Start with 5 dB SISI dB step and set the level 20 dB above the patient's threshold for that frequency in that ear.
7. The test begins with 1000 Hz.
8. Make sure that the patient understands the response task.
9. Change the SISI dB step to 1 dB. Set the level 20 dB above the patient's threshold for that frequency in that ear and
press the
Play
button.
10. Store the data points.
11. Repeat steps
to
for additional frequencies.
5.3
Testing with sound files
5.3.1
Playing sound files without word lists
Prepare playback
1. Use either
Int. CD
or
Int. File
as
Sound Source
.
2. If
Int. CD
is chosen, select
CD Drive Selection
and/or
CD Track Selection
in the
Options
dialog or directly in the
Player Panel
. This will list CD tracks in the
Player Panel
combo box.
3. If
Int. File
is chosen, select
Sound File Selection
in the
Options
dialog or browse for a folder containing sound files in
the
Player Panel
. This will list all sound files contained in the same folder as the
Sound File Selection
file in the
Player Panel
combo box.
How to play back / stop playback
1. Use either the
Play
or
Pause
button.
2. A click on the
Pause
button (actually a stop icon) will pause playing (this is different when using word lists).
3. A click on
Reset
stops the playback and resets the score.
How to score
•
Use the score buttons or shortcut keys (+, -).
When to reset score
Notice the field
Reset Score Counter
in the
Options
dialog.
•
Reset Score Counter
=
True
The
Scoring panel
is reset if you change
Channel Settings
(except
Continuous On
), the
Intensity
or if the
Reset
but-
ton is clicked.
•
Reset Score Counter
=
False
Does not change the score even if
Reset
is clicked.
5.3.2
Playing sound files with word lists
Prepare playing
1. Use either
Int. CD
or
Int. File
as
Sound Source
.
70
Madsen A450
5 Examples of audiometric testing
