Hi Bakis

> dieter said...and now you tell me that the comb filter
> needs notch filters in parallel....( )I AM GOING
> MAD!!!!!!!!

You don't have to go mad. Low- or Hi-pass filters mixed with a original
signal cause a similar effect like a notchfilters. A similar result is
available with several low/hi pass filters in parallel.

If you want to use dedicated notchfilters you have to use them in series.

Florian
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Florian Anwander |ConSol* HP-Support
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