Quote:
Moving the HPF before Multiband makes the filter much weaker and increases artifacts. Say there's a tone at 30 Hz, and the HPF is configured to filter at 35 Hz. Then the 30 Hz tone will be reduced by - say - 4 dB. And there will be artifacts. Next, Multiband will increase the 30 Hz tone again so in effect nothing happened - except that the artifacts are still there. On top of that, Multiband and Bass Boost can cause new low frequency signals that won't be removed if the HPF filtering is done before it. (I just discovered this, see my response to eldoradofm).
I think you need to be more clear on things, unless I'm the one that doesn't understand...
In this post, you indicate that "HPF" is not currently before Multiband, however a few posts up, you say that HPF is the "very first filter in the chain".
The way I understand things is if you take the NON-Phase Linear HPF, it
is before Multiband, but the Phase Linear HPF is
after Multiband. Is this correct?
It would probably be helpful for a current flow diagram / UML Activity Diagram (or at least a text version), if you don't feel that's giving away too much info.