Is it really noticeable?  If it is, would it be terribly difficult
to design a filter that cut off say, 0-5 Hz, and had a steep enough
roll-off to leave the 20's and 30's alone?

Toby


> Dcblock is
> essentially a 1-pole recursive highpass filter which rejects DC, but
> *also* some low frequencies to some extent, so the price you will pay