and seeing biquad coefficients MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit
Do ggee's objects recognize the sampling rate? They didn't appear to for me. When I changed the SR and used the same frequency value, I heard a change in the center frequency of the filter. Sam From: Hans-Christoph Steiner Sent: 4/9/2012 5:59 PM To: Samuel Burt Cc: Pd List Subject: Re: [PD] [PD-announce] new GUI obect: filterview, for generating and seeing biquad coefficients It understands the global sample rate, but not yet the sample rate set with [block~]. .hc On Apr 9, 2012, at 3:28 PM, Samuel Burt wrote: > I've just taught myself about biquad~ and understand enough to know that a > change in sampling rate will change the calculation of the center frequency. > I was hoping the second outlet would output this information. Will it change > based on the sampling rate or will it always be calculated for 44.1K? > > Sam > > > On Apr 9, 2012, at 3:20 , Hans-Christoph Steiner wrote: > >> >> The second outlet will eventually output the current filter bandwith, >> center, and gain, but right now it does nothing. >> >> .hc >> >> On Apr 9, 2012, at 2:39 PM, Samuel Burt wrote: >> >>> Hans, >>> >>> Great to know. It works wonderfully with the beta of 0.43-extended here. >>> >>> What is the second outlet of filterview? >>> >>> I really appreciate the safeguards to prevent the filter from becoming >>> unstable. >>> >>> Sam >>> >>> >>> On Apr 9, 2012, at 11:13 , Hans-Christoph Steiner wrote: >>> >>>> >>>> The last bit is the key bit of information: filterview will only work on >>>> 0.43, not 0.42.5. It relies on some of the new features of 0.43. >>>> >>>> .hc >>>> >>>> On Apr 9, 2012, at 9:57 AM, Samuel Burt wrote: >>>> >>>>> Here are the steps I took: >>>>> >>>>> 1) I opened the help patch in the directory with the .pd_darwin binary >>>>> file. >>>>> >>>>> 2) I turned on audio. >>>>> >>>>> 3) I selected a high pass filter. >>>>> >>>>> 4) I wondered if changing the bandwidth would do anything, so I moved my >>>>> cursor over one of the red lines that show bandwidth. The line became >>>>> highlighted but I could not move it from its position. >>>>> >>>>> 5) I selected a band pass filter. >>>>> >>>>> 6) I attempted to move the bandwidth, again, to no avail. >>>>> >>>>> 7) I single-clicked (no hold) in the area between the bandwidth markers >>>>> and began changing the frequency of the band pass filter. >>>>> >>>>> 8) The filter continued following my pointer as long as it was inside the >>>>> borders of the GUI. >>>>> >>>>> 9) If I moved my pointer out of the GUI and pressed command-E, the >>>>> frequency would stop moving. >>>>> >>>>> 10) Pressing command-E, again, would resume following my pointer without >>>>> my clicking anywhere. >>>>> >>>>> 11) Then, Pd failed with a spinning beach ball. A force quit was >>>>> necessary. >>>>> >>>>> 12) In the meantime, when I clicked on the patch's titlebar, it showed >>>>> one of the cursor symbols for changing the bandwidth. >>>>> >>>>> Let me know if I can help test it more. >>>>> >>>>> I suppose I left out one bit of information. I am running Pd-extended >>>>> 0.42.5-extended. >>>>> >>>>> Sam >>>>> >>>>> >>>>> >>>>> On Apr 8, 2012, at 6:35 , Hans-Christoph Steiner wrote: >>>>> >>>>>> >>>>>> Hmm, I thought I got rid of that issue with it sticking to the mouse >>>>>> pointer... arg. Can you tell me the steps to reproduce it? >>>>>> >>>>>> I should add more to the help patch. The goal was to make it as >>>>>> self-explanatory as possible. So you can click and move the filter >>>>>> center and gain, and click and drag on the vertical bandwidth lines to >>>>>> control the bandwidth. >>>>>> >>>>>> .hc >>>>>> >>>>>> On Apr 8, 2012, at 4:33 PM, Samuel Burt wrote: >>>>>> >>>>>>> Hans, >>>>>>> >>>>>>> This is so exciting. The binary is working here on a MacIntosh 2.8 GHz >>>>>>> Intel Core 2 Duo with OS 10.6.8. I thought you might appreciate some >>>>>>> quick user feedback. >>>>>>> >>>>>>> When I click the graphic, it lets me adjust frequency and amplitude, >>>>>>> but then my cursor gets stuck to it like mouse up isn't working. Every >>>>>>> time I click it adds another red vertical line. >>>>>>> >>>>>>> A slight bit more documentation would be helpful in the help patch, >>>>>>> too, explaining how one can interact with the graph with the mouse. Is >>>>>>> it possible to change the bandwidth with the GUI? is there a key >>>>>>> combination one can hold? >>>>>>> >>>>>>> Sam >>>>>>> >>>>>>> >>>>> >>>> >>>> >>>> >>>> ---------------------------------------------------------------------------- >>>> >>>> The arc of history bends towards justice. - Dr. Martin Luther King, Jr. >>>> >>>> >>> >> >> >> >> >> >> ---------------------------------------------------------------------------- >> >> "[T]he greatest purveyor of violence in the world today [is] my own >> government." - Martin Luther King, Jr. >> >> >> > ---------------------------------------------------------------------------- News is what people want to keep hidden and everything else is publicity. - Bill Moyers _______________________________________________ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management -> http://lists.puredata.info/listinfo/pd-list
