Frequency band separation techniques

Neutron · Post by **Neutron** » Sat Feb 09, 2008 7:23 pm

i bought an extra pulsar 1 with the explicit purpose of running crossover filters created on SDK to help design active crossovers and delays for amplifier-per-driver speakers.

Shroomz~> · Post by **Shroomz~>** » Sun Feb 10, 2008 1:36 pm

<Shroomz> wrote:You could also connect the LP & HP outputs of a multimode filter to a x-fade module, getting a new filter type which has a controllable curve. In the 0 x-fade position the new filter will be a notch or bandreject filter.

Just to add to the comment above, the described method produces a notch filter which works well with zero or low resonance. To achieve a notch filter which works well at higher quality factors, try phase inverting the BP signal from your multimode filter & mixing it with the filter's input signal. This actually produces a notch filter which works well at both high & low quality factors.

Neutron, that sounds interesting.

sonolive · Post by **sonolive** » Tue Feb 12, 2008 4:51 am

hi kylie,

sonolive wrote:
Screen shots and analysis coming soon ... Stay Tuned ...
"soon" as in "scope5 coming soon" ?
nice to hear you have something new in preparation.

-greetings, markus-

as promised ...
http://www.planetz.com/forums/viewtopic.php?t=24380

cheers
olive