Use of this website and the information, programs, multimedia-data, etc. are at your own risk. <br>
The programs for the design of filters do not use input-checking. The principle garbage-in garbage-out holds. <br>
If, for example, you plug in letters where numbers are expected the results are unpredictable. I do not take any responsibilities. <br>
<!-- Concerning unsolicited emails: <q>I am not bound to please you with my answers</q>, I am even not bound to answer at all. <br>
However,--> Unsolicited emails have a high chance being answered if they take less than a minute for me to read and less than a minute to answer.