OK! beware here, though: my question resulted from comparison with the juno range, and the HPF setup on that is not an ordinary highpass: it is a 4way switch, 0-3: 3 is the highest HPF setting, 2 lower, 1 is OFF/thru, and 4 is a type of bass boost. not saying the poly800 needs to emulate a juno, but this is how that config works. on the JU106/60/6, the HPF comes AFTER the LPF(and VCA), contrary to what it looks like, and on the Alpha JU, it comes before. the bassboost results from a type of LPF/band thing (linkwitz- -riley?no butterworth!)...here, check this out, if you are on PC (sorry macz...it is synthedit), it is a plugin i made recently: http://www.box.net/shared/v6m7j3n5n6 'DC0-6' (wa-hey: 1626 downloads as of today...) it isn't entirely accurate, of course, but you might have some fun with it. check it out with bomer's mousekeyboard inputting chords via midi - might give a few thoughts about chord memories/sequencing, etc. the ex800, doesn't lack bass, of course, but i reckon this HPF, allied with some element of? ringmod?/waveshaping? is what gives the juno it's sound. an all-the-way HPF could be interesting too. bear in mind that what i did to obtain the 'bassboost' was entirely separate from the HPF part. and if a HPF can be added, why not a multimode? hpf/more lpf/band pass/reject? --- In korgpolyex@yahoogroups.com, "zoinky420" <zoinky420@...> wrote: > > > > --- In korgpolyex@yahoogroups.com, Michael Hawkins <korgpolyex800@> wrote: > > > > No, the NJM2069 OKI chip that was custom made for Korg does not have a HPF. > > > > I would be willing and able to add both an HPF and a limiter into the AtomaHawk > > PCB design. > > > > But someone else would need to provide the circuit design itself. > > > > > > There must be some free circuits of those types around?? I was on a DIY effects site a while back that had tons of free circuits for just about everything imaginable. >
Message
Re: HPF?
2011-06-03 by k9k9dog