Resonant bandpass, controllable resonance and bandwidth?

Resonant bandpass, controllable resonance and bandwidth?

Date	2016-01-21 16:24
From	Peter Burgess
Subject	Resonant bandpass, controllable resonance and bandwidth?
	I think my subject pretty much covers it. I can't find a resonant bandpass filter with controls for both bandwidth and resonance, that doesn't output 3 or 4 different filter types. Any ideas? Csound mailing list Csound@listserv.heanet.ie https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND Send bugs reports to https://github.com/csound/csound/issues Discussions of bugs and features can be posted here

Date	2016-01-21 16:32
From	Victor Lazzarini
Subject	Re: Resonant bandpass, controllable resonance and bandwidth?
	What do you mean by "controls for both bandwidth and resonance”? Not sure I follow. ======================== Dr Victor Lazzarini Dean of Arts, Celtic Studies and Philosophy, Maynooth University, Maynooth, Co Kildare, Ireland Tel: 00 353 7086936 Fax: 00 353 1 7086952 > On 21 Jan 2016, at 16:24, Peter Burgess wrote: > > I think my subject pretty much covers it. I can't find a resonant > bandpass filter with controls for both bandwidth and resonance, that > doesn't output 3 or 4 different filter types. Any ideas? > > Csound mailing list > Csound@listserv.heanet.ie > https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND > Send bugs reports to > https://github.com/csound/csound/issues > Discussions of bugs and features can be posted here Csound mailing list Csound@listserv.heanet.ie https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND Send bugs reports to https://github.com/csound/csound/issues Discussions of bugs and features can be posted here

Date	2016-01-21 16:35
From	Peter Burgess
Subject	Re: Resonant bandpass, controllable resonance and bandwidth?
	sorry not an input to control both at once, I just mean a fitler that has an input for each of those parameters. bqres is almost there, but it doesn't have a bandwidth parameter On Thu, Jan 21, 2016 at 4:32 PM, Victor Lazzarini wrote: > What do you mean by "controls for both bandwidth and resonance”? Not sure I follow. > ======================== > Dr Victor Lazzarini > Dean of Arts, Celtic Studies and Philosophy, > Maynooth University, > Maynooth, Co Kildare, Ireland > Tel: 00 353 7086936 > Fax: 00 353 1 7086952 > >> On 21 Jan 2016, at 16:24, Peter Burgess wrote: >> >> I think my subject pretty much covers it. I can't find a resonant >> bandpass filter with controls for both bandwidth and resonance, that >> doesn't output 3 or 4 different filter types. Any ideas? >> >> Csound mailing list >> Csound@listserv.heanet.ie >> https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND >> Send bugs reports to >> https://github.com/csound/csound/issues >> Discussions of bugs and features can be posted here > > Csound mailing list > Csound@listserv.heanet.ie > https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND > Send bugs reports to > https://github.com/csound/csound/issues > Discussions of bugs and features can be posted here Csound mailing list Csound@listserv.heanet.ie https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND Send bugs reports to https://github.com/csound/csound/issues Discussions of bugs and features can be posted here

Date	2016-01-21 16:42
From	Victor Lazzarini
Subject	Re: Resonant bandpass, controllable resonance and bandwidth?
	Normally, bandwidth and resonance control the same properties of a filter. A narrow bandwidth increases resonance (in resonant filters), etc.. It is not usual (well I’ve never seen it) to bandwidth and resonance as filter controls in a band-pass filter. ======================== Dr Victor Lazzarini Dean of Arts, Celtic Studies and Philosophy, Maynooth University, Maynooth, Co Kildare, Ireland Tel: 00 353 7086936 Fax: 00 353 1 7086952 > On 21 Jan 2016, at 16:35, Peter Burgess wrote: > > sorry not an input to control both at once, I just mean a fitler that > has an input for each of those parameters. bqres is almost there, but > it doesn't have a bandwidth parameter > > On Thu, Jan 21, 2016 at 4:32 PM, Victor Lazzarini > wrote: >> What do you mean by "controls for both bandwidth and resonance”? Not sure I follow. >> ======================== >> Dr Victor Lazzarini >> Dean of Arts, Celtic Studies and Philosophy, >> Maynooth University, >> Maynooth, Co Kildare, Ireland >> Tel: 00 353 7086936 >> Fax: 00 353 1 7086952 >> >>> On 21 Jan 2016, at 16:24, Peter Burgess wrote: >>> >>> I think my subject pretty much covers it. I can't find a resonant >>> bandpass filter with controls for both bandwidth and resonance, that >>> doesn't output 3 or 4 different filter types. Any ideas? >>> >>> Csound mailing list >>> Csound@listserv.heanet.ie >>> https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND >>> Send bugs reports to >>> https://github.com/csound/csound/issues >>> Discussions of bugs and features can be posted here >> >> Csound mailing list >> Csound@listserv.heanet.ie >> https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND >> Send bugs reports to >> https://github.com/csound/csound/issues >> Discussions of bugs and features can be posted here > > Csound mailing list > Csound@listserv.heanet.ie > https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND > Send bugs reports to > https://github.com/csound/csound/issues > Discussions of bugs and features can be posted here Csound mailing list Csound@listserv.heanet.ie https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND Send bugs reports to https://github.com/csound/csound/issues Discussions of bugs and features can be posted here

Date	2016-01-21 16:50
From	Peter Burgess
Subject	Re: Resonant bandpass, controllable resonance and bandwidth?
	Ah right. Fair enough man! I've wondered for ages why the reson opcodes have no resonance control, I guess that explains it On Thu, Jan 21, 2016 at 4:42 PM, Victor Lazzarini wrote: > Normally, bandwidth and resonance control the same properties of a filter. A narrow bandwidth increases > resonance (in resonant filters), etc.. It is not usual (well I’ve never seen it) to bandwidth and resonance > as filter controls in a band-pass filter. > > ======================== > Dr Victor Lazzarini > Dean of Arts, Celtic Studies and Philosophy, > Maynooth University, > Maynooth, Co Kildare, Ireland > Tel: 00 353 7086936 > Fax: 00 353 1 7086952 > >> On 21 Jan 2016, at 16:35, Peter Burgess wrote: >> >> sorry not an input to control both at once, I just mean a fitler that >> has an input for each of those parameters. bqres is almost there, but >> it doesn't have a bandwidth parameter >> >> On Thu, Jan 21, 2016 at 4:32 PM, Victor Lazzarini >> wrote: >>> What do you mean by "controls for both bandwidth and resonance”? Not sure I follow. >>> ======================== >>> Dr Victor Lazzarini >>> Dean of Arts, Celtic Studies and Philosophy, >>> Maynooth University, >>> Maynooth, Co Kildare, Ireland >>> Tel: 00 353 7086936 >>> Fax: 00 353 1 7086952 >>> >>>> On 21 Jan 2016, at 16:24, Peter Burgess wrote: >>>> >>>> I think my subject pretty much covers it. I can't find a resonant >>>> bandpass filter with controls for both bandwidth and resonance, that >>>> doesn't output 3 or 4 different filter types. Any ideas? >>>> >>>> Csound mailing list >>>> Csound@listserv.heanet.ie >>>> https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND >>>> Send bugs reports to >>>> https://github.com/csound/csound/issues >>>> Discussions of bugs and features can be posted here >>> >>> Csound mailing list >>> Csound@listserv.heanet.ie >>> https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND >>> Send bugs reports to >>> https://github.com/csound/csound/issues >>> Discussions of bugs and features can be posted here >> >> Csound mailing list >> Csound@listserv.heanet.ie >> https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND >> Send bugs reports to >> https://github.com/csound/csound/issues >> Discussions of bugs and features can be posted here > > Csound mailing list > Csound@listserv.heanet.ie > https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND > Send bugs reports to > https://github.com/csound/csound/issues > Discussions of bugs and features can be posted here Csound mailing list Csound@listserv.heanet.ie https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND Send bugs reports to https://github.com/csound/csound/issues Discussions of bugs and features can be posted here