Gui controls for (LTI-)Filters anyone?
|
View:
New views
20 Messages
—
Rating Filter:
Alert me
|
 |
Gui controls for (LTI-)Filters anyone?
by LFSaw
::
Rate this Message:
Hey Folks,
just thought of something like this: { var in = WhiteNoise.ar; 8ChFilter.ar(in).gui; }.play; -> for often used filters that would be awesome (dude!) thoughts/implementations, anyone :-) regards Till |
|
|
Re: Gui controls for (LTI-)Filters anyone?
by James Harkins-2
::
Rate this Message:
You might be able to get some mileage out of my MultiEQ class, which
implements multiband parametric EQ with filter types high and low shelving, high and low pass, and boost/cut. The high/low shelving filters are adapted from a Joe Anderson Regalia-Mitra implementation; the others are standard UGens (HPF, LPF, MidEQ). What's missing is the computation of the frequency response and graphic display -- while there is a graphic editor currently, it's parametric and doesn't show a frequency response curve. I would love to have that but I'm not going to have time to work on it for quite awhile. I would gratefully incorporate someone else's frequency curve GUI (and of course give full credit). hjh On Mon, Jun 30, 2008 at 11:23 AM, LFSaw <lfsaw@...> wrote: > Hey Folks, > > just thought of something like this: > > { > var in = WhiteNoise.ar; > 8ChFilter.ar(in).gui; > }.play; > > -> -- James Harkins /// dewdrop world jamshark70@... http://www.dewdrop-world.net "Come said the Muse, Sing me a song no poet has yet chanted, Sing me the universal." -- Whitman _______________________________________________ sc-users mailing list info (subscribe and unsubscribe): http://swiki.hfbk-hamburg.de:8888/MusicTechnology/880 archive: http://www.listarc.bham.ac.uk/marchives/sc-users/ search: http://www.listarc.bham.ac.uk/lists/sc-users/search/ |
|
|
Re: Gui controls for (LTI-)Filters anyone?
by Sciss
::
Rate this Message:
well, you will need to be able to retrieve the filter coefficients
for each ugen... i tried to do that for MidEQ by looking into FilterUGens.cpp, but i must have done something wrong, as the plot is obviously wrong... so if you would add the correct coeffs-methods for each ugen, it should work: ~freqs = Array.geom( 512, 16, 1.014 ); ~sr = 44100; MidEQ.magResponse( ~freqs, ~sr, 1000, 1.0, -12 ).collect(_.ampdb).plot HPZ1.magResponse( ~freqs, ~sr ).collect(_.ampdb).plot HPZ2.magResponse( ~freqs, ~sr ).collect(_.ampdb).plot LPZ1.magResponse( ~freqs, ~sr ).collect(_.ampdb).plot LPZ2.magResponse( ~freqs, ~sr ).collect(_.ampdb).plot Am 30.06.2008 um 17:23 schrieb LFSaw: > Hey Folks, > > just thought of something like this: > > { > var in = WhiteNoise.ar; > 8ChFilter.ar(in).gui; > }.play; > > -> > > <pastedGraphic.png> > > > for often used filters that would be awesome (dude!) > > thoughts/implementations, anyone :-) > > regards > Till |
|
|
Re: Gui controls for (LTI-)Filters anyone?
by Sciss
::
Rate this Message:
i'm not sure, seems you need to invert the sign of the feedback
coefficients, e.g. + OnePole { *coeffs { arg sr, coef = 0.5; ^[[ 1 - abs( coef )], [ coef.neg ]]} } maybe that should be done in *magResponse (i.e. assuming b0 = -1) Am 30.06.2008 um 20:10 schrieb Sciss: > well, you will need to be able to retrieve the filter coefficients > for each ugen... i tried to do that for MidEQ by looking into > FilterUGens.cpp, but i must have done something wrong, as the plot > is obviously wrong... > > so if you would add the correct coeffs-methods for each ugen, it > should work: > > ~freqs = Array.geom( 512, 16, 1.014 ); ~sr = 44100; > MidEQ.magResponse( ~freqs, ~sr, 1000, 1.0, -12 ).collect(_.ampdb).plot > HPZ1.magResponse( ~freqs, ~sr ).collect(_.ampdb).plot > HPZ2.magResponse( ~freqs, ~sr ).collect(_.ampdb).plot > LPZ1.magResponse( ~freqs, ~sr ).collect(_.ampdb).plot > LPZ2.magResponse( ~freqs, ~sr ).collect(_.ampdb).plot > > <plusFilter.sc> > > Am 30.06.2008 um 17:23 schrieb LFSaw: > >> Hey Folks, >> >> just thought of something like this: >> >> { >> var in = WhiteNoise.ar; >> 8ChFilter.ar(in).gui; >> }.play; >> >> -> >> >> <pastedGraphic.png> >> >> >> for often used filters that would be awesome (dude!) >> >> thoughts/implementations, anyone :-) >> >> regards >> Till > _______________________________________________ sc-users mailing list info (subscribe and unsubscribe): http://swiki.hfbk-hamburg.de:8888/MusicTechnology/880 archive: http://www.listarc.bham.ac.uk/marchives/sc-users/ search: http://www.listarc.bham.ac.uk/lists/sc-users/search/ |
|
|
Re: Gui controls for (LTI-)Filters anyone?
by scztt
::
Rate this Message:
You can also make a buffer with a single sample impulse, filter it, and do
an fft analysis on it to get the response. I've got code for it at home, I can fwd it to the list when I get off work. - Scott > i'm not sure, seems you need to invert the sign of the feedback > coefficients, e.g. > > + OnePole { > *coeffs { arg sr, coef = 0.5; ^[[ 1 - abs( coef )], [ coef.neg ]]} > } > > maybe that should be done in *magResponse (i.e. assuming b0 = -1) > > > Am 30.06.2008 um 20:10 schrieb Sciss: > >> well, you will need to be able to retrieve the filter coefficients >> for each ugen... i tried to do that for MidEQ by looking into >> FilterUGens.cpp, but i must have done something wrong, as the plot >> is obviously wrong... >> >> so if you would add the correct coeffs-methods for each ugen, it >> should work: >> >> ~freqs = Array.geom( 512, 16, 1.014 ); ~sr = 44100; >> MidEQ.magResponse( ~freqs, ~sr, 1000, 1.0, -12 ).collect(_.ampdb).plot >> HPZ1.magResponse( ~freqs, ~sr ).collect(_.ampdb).plot >> HPZ2.magResponse( ~freqs, ~sr ).collect(_.ampdb).plot >> LPZ1.magResponse( ~freqs, ~sr ).collect(_.ampdb).plot >> LPZ2.magResponse( ~freqs, ~sr ).collect(_.ampdb).plot >> >> <plusFilter.sc> >> >> Am 30.06.2008 um 17:23 schrieb LFSaw: >> >>> Hey Folks, >>> >>> just thought of something like this: >>> >>> { >>> var in = WhiteNoise.ar; >>> 8ChFilter.ar(in).gui; >>> }.play; >>> >>> -> >>> >>> <pastedGraphic.png> >>> >>> >>> for often used filters that would be awesome (dude!) >>> >>> thoughts/implementations, anyone :-) >>> >>> regards >>> Till >> > > > _______________________________________________ > sc-users mailing list > > > info (subscribe and unsubscribe): > http://swiki.hfbk-hamburg.de:8888/MusicTechnology/880 > archive: http://www.listarc.bham.ac.uk/marchives/sc-users/ > search: http://www.listarc.bham.ac.uk/lists/sc-users/search/ > _______________________________________________ sc-users mailing list info (subscribe and unsubscribe): http://swiki.hfbk-hamburg.de:8888/MusicTechnology/880 archive: http://www.listarc.bham.ac.uk/marchives/sc-users/ search: http://www.listarc.bham.ac.uk/lists/sc-users/search/ |
|
|
Re: Gui controls for (LTI-)Filters anyone?
by Wouter Snoei-2
::
Rate this Message:
Hi Sciss,
that's great, I've been looking for something like this for quite some time. I'll try and modify it a bit to also get graphics for the BEQ suite (should be possible right?). now, if I want to combine curves in one for serially connected filters, would I just need to multiply them with each-other? Or is there other math involved for that? btw the impulse response method I already know and tried, but I think this one is much more convenient and faster (since it doesn't require server<->lang communication). In the end I want to make an EQ interface where one can drag around points, so speed is an issue. cheers & thanks, Wouter Op 30-jun-2008, om 20:10 heeft Sciss het volgende geschreven: > well, you will need to be able to retrieve the filter coefficients > for each ugen... i tried to do that for MidEQ by looking into > FilterUGens.cpp, but i must have done something wrong, as the plot > is obviously wrong... > > so if you would add the correct coeffs-methods for each ugen, it > should work: > > ~freqs = Array.geom( 512, 16, 1.014 ); ~sr = 44100; > MidEQ.magResponse( ~freqs, ~sr, 1000, 1.0, -12 ).collect(_.ampdb).plot > HPZ1.magResponse( ~freqs, ~sr ).collect(_.ampdb).plot > HPZ2.magResponse( ~freqs, ~sr ).collect(_.ampdb).plot > LPZ1.magResponse( ~freqs, ~sr ).collect(_.ampdb).plot > LPZ2.magResponse( ~freqs, ~sr ).collect(_.ampdb).plot > > <plusFilter.sc> > > Am 30.06.2008 um 17:23 schrieb LFSaw: > >> Hey Folks, >> >> just thought of something like this: >> >> { >> var in = WhiteNoise.ar; >> 8ChFilter.ar(in).gui; >> }.play; >> >> -> >> >> <pastedGraphic.png> >> >> >> for often used filters that would be awesome (dude!) >> >> thoughts/implementations, anyone :-) >> >> regards >> Till > Wouter Snoei info@... http://www.woutersnoei.nl _______________________________________________ sc-users mailing list info (subscribe and unsubscribe): http://swiki.hfbk-hamburg.de:8888/MusicTechnology/880 archive: http://www.listarc.bham.ac.uk/marchives/sc-users/ search: http://www.listarc.bham.ac.uk/lists/sc-users/search/ |
|
|
Re: Gui controls for (LTI-)Filters anyone?
by Josh Parmenter
::
Rate this Message:
On Jun 30, 2008, at 3:05 PM, Wouter Snoei wrote:
> Hi Sciss, > > that's great, I've been looking for something like this for quite > some time. I'll try and modify it a bit to also get graphics for the > BEQ suite (should be possible right?). > should be! good idea. I've actually been thinking about updating the BEQSuite filters to use all doubles as well. Josh > > > cheers & thanks, > Wouter > > Op 30-jun-2008, om 20:10 heeft Sciss het volgende geschreven: > >> well, you will need to be able to retrieve the filter coefficients >> for each ugen... i tried to do that for MidEQ by looking into >> FilterUGens.cpp, but i must have done something wrong, as the plot >> is obviously wrong... >> >> so if you would add the correct coeffs-methods for each ugen, it >> should work: >> >> ~freqs = Array.geom( 512, 16, 1.014 ); ~sr = 44100; >> MidEQ.magResponse( ~freqs, ~sr, 1000, 1.0, >> -12 ).collect(_.ampdb).plot >> HPZ1.magResponse( ~freqs, ~sr ).collect(_.ampdb).plot >> HPZ2.magResponse( ~freqs, ~sr ).collect(_.ampdb).plot >> LPZ1.magResponse( ~freqs, ~sr ).collect(_.ampdb).plot >> LPZ2.magResponse( ~freqs, ~sr ).collect(_.ampdb).plot >> >> <plusFilter.sc> >> >> Am 30.06.2008 um 17:23 schrieb LFSaw: >> >>> Hey Folks, >>> >>> just thought of something like this: >>> >>> { >>> var in = WhiteNoise.ar; >>> 8ChFilter.ar(in).gui; >>> }.play; >>> >>> -> >>> >>> <pastedGraphic.png> >>> >>> >>> for often used filters that would be awesome (dude!) >>> >>> thoughts/implementations, anyone :-) >>> >>> regards >>> Till >> > > Wouter Snoei > > info@... > http://www.woutersnoei.nl > > > _______________________________________________ > sc-users mailing list > > > info (subscribe and unsubscribe): http://swiki.hfbk-hamburg.de:8888/MusicTechnology/880 > archive: http://www.listarc.bham.ac.uk/marchives/sc-users/ > search: http://www.listarc.bham.ac.uk/lists/sc-users/search/ ****************************************** /* Joshua D. Parmenter http://www.realizedsound.net/josh/ “Every composer – at all times and in all cases – gives his own interpretation of how modern society is structured: whether actively or passively, consciously or unconsciously, he makes choices in this regard. He may be conservative or he may subject himself to continual renewal; or he may strive for a revolutionary, historical or social palingenesis." - Luigi Nono */ _______________________________________________ sc-users mailing list info (subscribe and unsubscribe): http://swiki.hfbk-hamburg.de:8888/MusicTechnology/880 archive: http://www.listarc.bham.ac.uk/marchives/sc-users/ search: http://www.listarc.bham.ac.uk/lists/sc-users/search/ |
|
|
Re: Gui controls for (LTI-)Filters anyone?
by Josh Parmenter
::
Rate this Message:
I forgot the second part of that thought-
Wouter... if you do it for the BEQSuite, how do you feel about including it with the package at sc3-plugins? Josh On Jun 30, 2008, at 3:05 PM, Wouter Snoei wrote: > Hi Sciss, > > that's great, I've been looking for something like this for quite > some time. I'll try and modify it a bit to also get graphics for the > BEQ suite (should be possible right?). > > now, if I want to combine curves in one for serially connected > filters, would I just need to multiply them with each-other? Or is > there other math involved for that? > > btw the impulse response method I already know and tried, but I > think this one is much more convenient and faster (since it doesn't > require server<->lang communication). In the end I want to make an > EQ interface where one can drag around points, so speed is an issue. > > cheers & thanks, > Wouter > > Op 30-jun-2008, om 20:10 heeft Sciss het volgende geschreven: > >> well, you will need to be able to retrieve the filter coefficients >> for each ugen... i tried to do that for MidEQ by looking into >> FilterUGens.cpp, but i must have done something wrong, as the plot >> is obviously wrong... >> >> so if you would add the correct coeffs-methods for each ugen, it >> should work: >> >> ~freqs = Array.geom( 512, 16, 1.014 ); ~sr = 44100; >> MidEQ.magResponse( ~freqs, ~sr, 1000, 1.0, >> -12 ).collect(_.ampdb).plot >> HPZ1.magResponse( ~freqs, ~sr ).collect(_.ampdb).plot >> HPZ2.magResponse( ~freqs, ~sr ).collect(_.ampdb).plot >> LPZ1.magResponse( ~freqs, ~sr ).collect(_.ampdb).plot >> LPZ2.magResponse( ~freqs, ~sr ).collect(_.ampdb).plot >> >> <plusFilter.sc> >> >> Am 30.06.2008 um 17:23 schrieb LFSaw: >> >>> Hey Folks, >>> >>> just thought of something like this: >>> >>> { >>> var in = WhiteNoise.ar; >>> 8ChFilter.ar(in).gui; >>> }.play; >>> >>> -> >>> >>> <pastedGraphic.png> >>> >>> >>> for often used filters that would be awesome (dude!) >>> >>> thoughts/implementations, anyone :-) >>> >>> regards >>> Till >> > > Wouter Snoei > > info@... > http://www.woutersnoei.nl > > > _______________________________________________ > sc-users mailing list > > > info (subscribe and unsubscribe): http://swiki.hfbk-hamburg.de:8888/MusicTechnology/880 > archive: http://www.listarc.bham.ac.uk/marchives/sc-users/ > search: http://www.listarc.bham.ac.uk/lists/sc-users/search/ ****************************************** /* Joshua D. Parmenter http://www.realizedsound.net/josh/ “Every composer – at all times and in all cases – gives his own interpretation of how modern society is structured: whether actively or passively, consciously or unconsciously, he makes choices in this regard. He may be conservative or he may subject himself to continual renewal; or he may strive for a revolutionary, historical or social palingenesis." - Luigi Nono */ _______________________________________________ sc-users mailing list info (subscribe and unsubscribe): http://swiki.hfbk-hamburg.de:8888/MusicTechnology/880 archive: http://www.listarc.bham.ac.uk/marchives/sc-users/ search: http://www.listarc.bham.ac.uk/lists/sc-users/search/ |
|
|
Re: Gui controls for (LTI-)Filters anyone?
by scztt
::
Rate this Message:
> btw the impulse response method I already know and tried, but I think
> this one is much more convenient and faster (since it doesn't require > server<->lang communication). In the end I want to make an EQ > interface where one can drag around points, so speed is an issue. There is a little bit of downtime because of lang-server communication - calculation is minor, a 256 bin fft is more than enough, and only takes a 1/100 of a second or so. But transferring the data back is annoying, because you can't share buffers across the server<->client boundary... I was able to make a realtime-ish ui just fine, but it required enough hoop-jumping that it hurt performance - enough that I wouldn't want to use it at performance time. The benefit was, it could be applied to arbitrary ugen chains, not just chains of filters - no coeffs needed. Shared buffer memory and/or the ability to execute ugens client-side would be more general solutions to this sort of problem - but those things are not easy. - Scott _______________________________________________ sc-users mailing list info (subscribe and unsubscribe): http://swiki.hfbk-hamburg.de:8888/MusicTechnology/880 archive: http://www.listarc.bham.ac.uk/marchives/sc-users/ search: http://www.listarc.bham.ac.uk/lists/sc-users/search/ |
|
|
Re: Gui controls for (LTI-)Filters anyone?
by LFSaw
::
Rate this Message:
Hey,
wonderful that there is so much response to my suggestion :-) Does this mean that there is something like what I've suggested in the BEQSuite? kind regards Till On 01.07.2008, at 00:12, Josh Parmenter wrote: > I forgot the second part of that thought- > Wouter... if you do it for the BEQSuite, how do you feel about > including it with the package at sc3-plugins? > > Josh > > On Jun 30, 2008, at 3:05 PM, Wouter Snoei wrote: > >> Hi Sciss, >> >> that's great, I've been looking for something like this for quite >> some time. I'll try and modify it a bit to also get graphics for >> the BEQ suite (should be possible right?). >> >> now, if I want to combine curves in one for serially connected >> filters, would I just need to multiply them with each-other? Or is >> there other math involved for that? >> >> btw the impulse response method I already know and tried, but I >> think this one is much more convenient and faster (since it doesn't >> require server<->lang communication). In the end I want to make an >> EQ interface where one can drag around points, so speed is an issue. >> >> cheers & thanks, >> Wouter >> >> Op 30-jun-2008, om 20:10 heeft Sciss het volgende geschreven: >> >>> well, you will need to be able to retrieve the filter coefficients >>> for each ugen... i tried to do that for MidEQ by looking into >>> FilterUGens.cpp, but i must have done something wrong, as the plot >>> is obviously wrong... >>> >>> so if you would add the correct coeffs-methods for each ugen, it >>> should work: >>> >>> ~freqs = Array.geom( 512, 16, 1.014 ); ~sr = 44100; >>> MidEQ.magResponse( ~freqs, ~sr, 1000, 1.0, >>> -12 ).collect(_.ampdb).plot >>> HPZ1.magResponse( ~freqs, ~sr ).collect(_.ampdb).plot >>> HPZ2.magResponse( ~freqs, ~sr ).collect(_.ampdb).plot >>> LPZ1.magResponse( ~freqs, ~sr ).collect(_.ampdb).plot >>> LPZ2.magResponse( ~freqs, ~sr ).collect(_.ampdb).plot >>> >>> <plusFilter.sc> >>> >>> Am 30.06.2008 um 17:23 schrieb LFSaw: >>> >>>> Hey Folks, >>>> >>>> just thought of something like this: >>>> >>>> { >>>> var in = WhiteNoise.ar; >>>> 8ChFilter.ar(in).gui; >>>> }.play; >>>> >>>> -> >>>> >>>> <pastedGraphic.png> >>>> >>>> >>>> for often used filters that would be awesome (dude!) >>>> >>>> thoughts/implementations, anyone :-) >>>> >>>> regards >>>> Till >>> >> >> Wouter Snoei >> >> info@... >> http://www.woutersnoei.nl >> >> >> _______________________________________________ >> sc-users mailing list >> >> >> info (subscribe and unsubscribe): http://swiki.hfbk-hamburg.de:8888/MusicTechnology/880 >> archive: http://www.listarc.bham.ac.uk/marchives/sc-users/ >> search: http://www.listarc.bham.ac.uk/lists/sc-users/search/ > > ****************************************** > /* Joshua D. Parmenter > http://www.realizedsound.net/josh/ > > “Every composer – at all times and in all cases – gives his own > interpretation of how modern society is structured: whether actively > or passively, consciously or unconsciously, he makes choices in this > regard. He may be conservative or he may subject himself to > continual renewal; or he may strive for a revolutionary, historical > or social palingenesis." - Luigi Nono > */ > > > _______________________________________________ > sc-users mailing list > > > info (subscribe and unsubscribe): http://swiki.hfbk-hamburg.de:8888/MusicTechnology/880 > archive: http://www.listarc.bham.ac.uk/marchives/sc-users/ > search: http://www.listarc.bham.ac.uk/lists/sc-users/search/ _______________________________________________ sc-users mailing list info (subscribe and unsubscribe): http://swiki.hfbk-hamburg.de:8888/MusicTechnology/880 archive: http://www.listarc.bham.ac.uk/marchives/sc-users/ search: http://www.listarc.bham.ac.uk/lists/sc-users/search/ |
|
|
Re: Gui controls for (LTI-)Filters anyone?
by Sciss
::
Rate this Message:
also if you use like a five-band EQ for which you want each filter
curve displayed separately (in different colours for example) along with the total transfer function, you would need to create five (six) buffers and return them. add the action of the user moving around the frequency knob and probably the analytical solution from the IIR coefficients is better suited. the buffer solution would maybe be better for longer FIR filters. but also for delay based filters, like Combs, you would need a different method to calculate the transfer function (like operating on a "sparse" coefficients representation). cheers, -sciss- p.s. the problem with extracting the coefficients from FilterUGens.cpp is that there seem to be quite some optimized algorithms involved that make it hard to get the real coeffcients, e.g. loops like zin = ZXP(in); y0 = zin + b1 * y1 + b2 * y2; ZXP(out) = zin + a0 * (y0 - y2); y2 = y1; y1 = y0; ... maybe James McCartney or whoever wrote the filter UGens can shed some light on how this calculation works and how to get the basic filter coefficients (since "b1" is not really the b1, "a0" not really the a0 etc. as far as i understand) Am 01.07.2008 um 00:37 schrieb scott@...: >> btw the impulse response method I already know and tried, but I think >> this one is much more convenient and faster (since it doesn't require >> server<->lang communication). In the end I want to make an EQ >> interface where one can drag around points, so speed is an issue. > > There is a little bit of downtime because of lang-server > communication - > calculation is minor, a 256 bin fft is more than enough, and only > takes a > 1/100 of a second or so. But transferring the data back is annoying, > because you can't share buffers across the server<->client > boundary... I > was able to make a realtime-ish ui just fine, but it required enough > hoop-jumping that it hurt performance - enough that I wouldn't want > to use > it at performance time. The benefit was, it could be applied to > arbitrary > ugen chains, not just chains of filters - no coeffs needed. > > Shared buffer memory and/or the ability to execute ugens client- > side would > be more general solutions to this sort of problem - but those > things are > not easy. > > - Scott > > > _______________________________________________ > sc-users mailing list > > > info (subscribe and unsubscribe): http://swiki.hfbk-hamburg.de:8888/ > MusicTechnology/880 > archive: http://www.listarc.bham.ac.uk/marchives/sc-users/ > search: http://www.listarc.bham.ac.uk/lists/sc-users/search/ _______________________________________________ sc-users mailing list info (subscribe and unsubscribe): http://swiki.hfbk-hamburg.de:8888/MusicTechnology/880 archive: http://www.listarc.bham.ac.uk/marchives/sc-users/ search: http://www.listarc.bham.ac.uk/lists/sc-users/search/ |
|
|
Re: Gui controls for (LTI-)Filters anyone?
by Josh Parmenter
::
Rate this Message:
No... but Wouter suggested that there should be. I've been wanting to
update the BEQSuite for some time, so if Wouter (or others) want to add it, I can include it in the update. Best, Josh On Jul 1, 2008, at 4:18 AM, LFSaw wrote: > Hey, > > wonderful that there is so much response to my suggestion :-) > Does this mean that there is something like what I've suggested in > the BEQSuite? > > kind regards > Till > > On 01.07.2008, at 00:12, Josh Parmenter wrote: > >> I forgot the second part of that thought- >> Wouter... if you do it for the BEQSuite, how do you feel about >> including it with the package at sc3-plugins? >> >> Josh >> >> On Jun 30, 2008, at 3:05 PM, Wouter Snoei wrote: >> >>> Hi Sciss, >>> >>> that's great, I've been looking for something like this for quite >>> some time. I'll try and modify it a bit to also get graphics for >>> the BEQ suite (should be possible right?). >>> >>> now, if I want to combine curves in one for serially connected >>> filters, would I just need to multiply them with each-other? Or is >>> there other math involved for that? >>> >>> btw the impulse response method I already know and tried, but I >>> think this one is much more convenient and faster (since it >>> doesn't require server<->lang communication). In the end I want to >>> make an EQ interface where one can drag around points, so speed is >>> an issue. >>> >>> cheers & thanks, >>> Wouter >>> >>> Op 30-jun-2008, om 20:10 heeft Sciss het volgende geschreven: >>> >>>> well, you will need to be able to retrieve the filter >>>> coefficients for each ugen... i tried to do that for MidEQ by >>>> looking into FilterUGens.cpp, but i must have done something >>>> wrong, as the plot is obviously wrong... >>>> >>>> so if you would add the correct coeffs-methods for each ugen, it >>>> should work: >>>> >>>> ~freqs = Array.geom( 512, 16, 1.014 ); ~sr = 44100; >>>> MidEQ.magResponse( ~freqs, ~sr, 1000, 1.0, >>>> -12 ).collect(_.ampdb).plot >>>> HPZ1.magResponse( ~freqs, ~sr ).collect(_.ampdb).plot >>>> HPZ2.magResponse( ~freqs, ~sr ).collect(_.ampdb).plot >>>> LPZ1.magResponse( ~freqs, ~sr ).collect(_.ampdb).plot >>>> LPZ2.magResponse( ~freqs, ~sr ).collect(_.ampdb).plot >>>> >>>> <plusFilter.sc> >>>> >>>> Am 30.06.2008 um 17:23 schrieb LFSaw: >>>> >>>>> Hey Folks, >>>>> >>>>> just thought of something like this: >>>>> >>>>> { >>>>> var in = WhiteNoise.ar; >>>>> 8ChFilter.ar(in).gui; >>>>> }.play; >>>>> >>>>> -> >>>>> >>>>> <pastedGraphic.png> >>>>> >>>>> >>>>> for often used filters that would be awesome (dude!) >>>>> >>>>> thoughts/implementations, anyone :-) >>>>> >>>>> regards >>>>> Till >>>> >>> >>> Wouter Snoei >>> >>> info@... >>> http://www.woutersnoei.nl >>> >>> >>> _______________________________________________ >>> sc-users mailing list >>> >>> >>> info (subscribe and unsubscribe): http://swiki.hfbk-hamburg.de:8888/MusicTechnology/880 >>> archive: http://www.listarc.bham.ac.uk/marchives/sc-users/ >>> search: http://www.listarc.bham.ac.uk/lists/sc-users/search/ >> >> ****************************************** >> /* Joshua D. Parmenter >> http://www.realizedsound.net/josh/ >> >> “Every composer – at all times and in all cases – gives his own >> interpretation of how modern society is structured: whether >> actively or passively, consciously or unconsciously, he makes >> choices in this regard. He may be conservative or he may subject >> himself to continual renewal; or he may strive for a revolutionary, >> historical or social palingenesis." - Luigi Nono >> */ >> >> >> _______________________________________________ >> sc-users mailing list >> >> >> info (subscribe and unsubscribe): http://swiki.hfbk-hamburg.de:8888/MusicTechnology/880 >> archive: http://www.listarc.bham.ac.uk/marchives/sc-users/ >> search: http://www.listarc.bham.ac.uk/lists/sc-users/search/ > > > _______________________________________________ > sc-users mailing list > > > info (subscribe and unsubscribe): http://swiki.hfbk-hamburg.de:8888/MusicTechnology/880 > archive: http://www.listarc.bham.ac.uk/marchives/sc-users/ > search: http://www.listarc.bham.ac.uk/lists/sc-users/search/ ****************************************** /* Joshua D. Parmenter http://www.realizedsound.net/josh/ “Every composer – at all times and in all cases – gives his own interpretation of how modern society is structured: whether actively or passively, consciously or unconsciously, he makes choices in this regard. He may be conservative or he may subject himself to continual renewal; or he may strive for a revolutionary, historical or social palingenesis." - Luigi Nono */ _______________________________________________ sc-users mailing list info (subscribe and unsubscribe): http://swiki.hfbk-hamburg.de:8888/MusicTechnology/880 archive: http://www.listarc.bham.ac.uk/marchives/sc-users/ search: http://www.listarc.bham.ac.uk/lists/sc-users/search/ |
|
|
|
pastedGraphic.png (31K) 