This is an interesting tool. You can listen to different sounds to try to determine the pitch (frequency, in Hertz) of your tinnitus:
http://www.tinnitool.com/en/tinnitus_analyse/hoertest.php
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Tinnitus analysis
Which noise do i hear?
With this hearing test you will learn at which frequency your tinnitus noise is ringing. Then we will be in a position to offer you a sound therapy specifically custom-made for the noise in your ear.
How to proceed:
Listen to various pitch levels, while pressing the various frequency buttons (100 Hz – 11000 Hz). Then write down the frequency that is closest to the sound in your ear. If the frequency of the noise in your ear varies greatly or if you hear various pitch levels, then mark one of the two fields situated below it (if only the volume varies, the two fields should not be marked). After that, let us offer you an individualised form of therapy.