Vadim, I was more refering to the analog multimode filter based on the moog cascade I did some years ago, and found it amusing to find a warning against it.
Anyway, excellent writeup, I wish I cuold have it printed as a proper book for more relaxed reading. Stefan > On 31. Oct 2018, at 16:29 , Vadim Zavalishin > <vadim.zavalis...@native-instruments.de> wrote: > > On 31-Oct-18 15:58, Stefan Stenzel wrote: >> Thank you very much, Sir! > > You're highly welcome, Sir! > >> But why the warning about multimode lattice filters? >> In my case, this comes way too late! > > I'm not sure I'm fully following you... Or are you referring to this: > >>> New additions: >>> - Generalized ladder filters > > You mean, why isn't this discussed in Chapter 5? Well, good question. But in > the same sense, one could ask why generalized SVF doesn't come in Chapter 4. > Chapter 8 is specifically concerned with building filters with arbitrary > transfer functions of arbitrary orders, whereas Chapters 4 and 5 rather deal > with structures commonly used in synths (more or less), and from this POV it > belongs there. Also, had I discussed it in Chapter 5, it would have been > difficult to derive it from the generalized SVF idea, which in my opinion is > highly educative. > > Actually, are you by any chance aware of this structure being discussed > elsewhere? Haven't encountered anything like that so far (not that it's > difficult to derive ;) ), just wanted to build a nonlinear 2nd kind > Butterworth filter of 4th order, so needed something like that ;) > > Best regards, > Vadim > > -- > Vadim Zavalishin > Reaktor Application Architect > Native Instruments GmbH > +49-30-611035-0 > > www.native-instruments.com > _______________________________________________ > dupswapdrop: music-dsp mailing list > email@example.com > https://lists.columbia.edu/mailman/listinfo/music-dsp > _______________________________________________ dupswapdrop: music-dsp mailing list firstname.lastname@example.org https://lists.columbia.edu/mailman/listinfo/music-dsp