Re: FIR filters
This specifically mentions stage monitors, which makes me wonder, do any digital boards come with FIR filters built in?
Regarding Dave's papers. It seems to me that one of the main things he is doing is polarity canceling signal that is reflecting back down the horn. Is this correct?
I have also seen group delay mentioned with the FIR filters. Isn't this a variation on the same theme? And is it dealt with in the same manner?
I remember on the DIY someone (Maybe a Mark?) pointed out a problem with one of the horns at about 3K. Is this something that you fixed with an FIR filter? As in, can the filter fix something that is physically wrong? It seems like this was a bump, not a dip. As pointed out above, a phase problem cannot be fixed, and it seems to me that would be a dip, what about a propagation? Or is this non-linear too?
