that seems quite nicer than [hip~], cool. I rewrote it to make it more concise with expr.
cheers 2015-01-30 19:29 GMT-02:00 katja <katjavet...@gmail.com>: > Attached patch illustrates how [iemlib/hp1~] is calculated. This gives > a perfect hipass, [hip~] could (or should) be done the same way I > guess. > > Katja > > On Fri, Jan 30, 2015 at 6:21 AM, Alexandre Torres Porres > <por...@gmail.com> wrote: > >> This message of mine was intended to be a bug report > > > > I see, but my point is that it's not much of a "bug", so if you want to > see > > how these filters work more deeply, you may check my stuff. > > > > You can see how I made versions of the filters as [fexpr~] or [biquad~] > and > > the raw filters. I made [vcf~] out of [cpole~], for example. And you can > > check the plot of magnitude/phase. > > > >> I know (and enjoy very much) yours > >> Computer Music With Examples In Pd. > > > > Thanks. That got old though... I translated from portuguese what I had > for a > > workshop at the last pd convention in 2011, but it's mostly FFT. My > current > > portuguese version is way bigger, up to 250 examples in the next release > I'm > > planning for next month. These patches I'm sharing is from my newest > > releases. > > > >> Probably it would be better then to warn users > >> about this limit of ~12 kHz in the help-files then. > > > > Yeah, it'd be good to point out a bit of its characteristics. I learned a > > lot by checking on my own. > > > > I could realize how [bp~] is quite similar to the resonant lowpass from > > [lores~] for example. Its just a matter of setting up the gain. If you > set > > [bp~]'s Q to 1, you'll also see how it behaves much like a lowpass filter > > like [lop~]. The [vcf~] filter has similar characteristics. > > > > cheers > > > > 2015-01-30 0:19 GMT-02:00 Gilberto Agostinho > > <gilbertohasn...@googlemail.com>: > > > >> Hi Alexandre, thanks for your reply. > >> > >> On 30/01/15 02:39, Alexandre Torres Porres wrote: > >> > >> it's how the filters were designed, they're not perfect throughout the > >> spectrum > >> > >> > >> Probably it would be better then to warn users about this limit of ~12 > kHz > >> in the help-files then. > >> > >> you'll need to use/build other filters for that purpose of working with > >> that higher portion of the spectrum (in which I can hardly still hear, > by > >> the way)/ > >> > >> > >> Hmm, I can clearly hear the difference between feeding a high frequency > to > >> [vcf~] and to [bp~] using a large enough Q (~100 for instance). With > that Q, > >> try sweeping from 12kHz until 14kHz in both filters, and you'll hear > that > >> [vcf~] behaves as expected, while [bp~] does not change the frequency > but > >> only affects the amplitude of the output for some reason. > >> > >> a few of patches of mine that describe the behaviour of vanilla and some > >> extended filters > >> > >> > >> Thanks a lot for the patches, but I am actually aware of [vcf~] and > >> [biquad~]. This message of mine was intended to be a bug report rather > than > >> a cry for help as I have no particular problem with filters needing a > >> solution right now. But in any case I will check your patches, as I know > >> (and enjoy very much) yours Computer Music With Examples In Pd. > >> > >> Take care, > >> Gilberto Agostinho > > > > > > > > _______________________________________________ > > Pd-list@lists.iem.at mailing list > > UNSUBSCRIBE and account-management -> > > http://lists.puredata.info/listinfo/pd-list > > >
hip~-bug-2.pd
Description: Binary data
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