20 - Audiometer
Descending algorithm
Yes
Select frequency
Signal is heard?
No
Signal is heard?
Yes
Does the nuber of equivalent
hearing levels reach the
desired quantity?
Finished
The hearing level is defined
Does the number of trials
reach the desired quantity?
No
Invalid
There are not enough equivalent
hearing levels!
Yes
No
No
Yes
Sound pressure increased by 10dB
Sound pressure decreased by 5dB
Record previous sound pressure
Set starting sound pressure
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