Re: [PD] Cannot get [hid] to work properly with my mouse
Well ... I mean at least mac + linux ! For some reason when I mean that something can run everywhere I always forget windows :) same when I do webdev ... I usually completely forget about internet explorer... 2013/9/24 Simon Wise simonzw...@gmail.com On 23/09/13 20:10, s p wrote: The patch I am doing is for a workshop, so I'd like to be platform independent... But thanks for the tip anyways! platform independent plus using input is going to be quite limited, since under the surface there will be quite different implementations per platform in any cross platform object or environment ... which may or may not be consistent. Of course with simpler and more abstracted data you may have more luck. Simon __**_ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/** listinfo/pd-list http://lists.puredata.info/listinfo/pd-list ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
Re: [PD] from poles/zeros to biquad coefficients - how to? (something like max's z-plane)
Hi Alexandre, This is the online tool: http://kmt.hku.nl/~pieter/cgi-bin/resp/nph-PZT.cgi. It starts with an example and every time you refresh the page it gives you a new one. If you scroll down there's a link that tells you how the coefficients were calculated, e.g.: 2 zeros give 3 coefficients: *a0* = G *a1* = -G(Z0 + Z1) *a2* = G(Z0*Z1) 2 poles give 3 coefficients: *b0* = 1 *b1* = -(P0 + P1) *b2* = (P0*P1) The linear difference equation is derived from these as you can see. Regards, --Funs On Tue, Sep 24, 2013 at 7:36 AM, Alexandre Torres Porres por...@gmail.comwrote: for what i see, it's not some sort of straight formula, right? seems a bit more complicated than that. cheers 2013/9/23 Funs Seelen funssee...@gmail.com On Mon, Sep 23, 2013 at 5:35 PM, Alexandre Torres Porres por...@gmail.com wrote: thanks, here's a pic of what I have so far https://fbcdn-sphotos-g-a.akamaihd.net/hphotos-ak-prn1/11212_10151872996046683_1825736206_n.jpg Cool. For extra inspiration you could have a look at PoZeTools It sure does look like what I need. Thanks. But extracting what I need to know about the math of converting from coordinates to coefficients was just over my head :P unfortunately, sorry. I was hoping for something simpler, like just the operations needed. If the info is in code, I need it to more explicit. I'd really appreciate if anyone knows how to read from this and just points it out for me so I can put it in a patch. I'm assuming it's rather simple math I remember I once learned how to do this but never repeated the practice. If I find time to do that I would gladly try to figure it out again, but if someone more experienced feels the urge to chime in before that time I would be very happy too :). ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
Re: [PD] from poles/zeros to biquad coefficients - how to? (something like max's z-plane)
Hey Alexandre, This blog - EarLevel Engineeringhttp://www.earlevel.com/main/2003/02/28/biquads/ - really helped with my understanding of poles/zeros and biquads. Hope it's useful! Cheers, Joe On 24 September 2013 06:36, Alexandre Torres Porres por...@gmail.comwrote: for what i see, it's not some sort of straight formula, right? seems a bit more complicated than that. cheers 2013/9/23 Funs Seelen funssee...@gmail.com On Mon, Sep 23, 2013 at 5:35 PM, Alexandre Torres Porres por...@gmail.com wrote: thanks, here's a pic of what I have so far https://fbcdn-sphotos-g-a.akamaihd.net/hphotos-ak-prn1/11212_10151872996046683_1825736206_n.jpg Cool. For extra inspiration you could have a look at PoZeTools It sure does look like what I need. Thanks. But extracting what I need to know about the math of converting from coordinates to coefficients was just over my head :P unfortunately, sorry. I was hoping for something simpler, like just the operations needed. If the info is in code, I need it to more explicit. I'd really appreciate if anyone knows how to read from this and just points it out for me so I can put it in a patch. I'm assuming it's rather simple math I remember I once learned how to do this but never repeated the practice. If I find time to do that I would gladly try to figure it out again, but if someone more experienced feels the urge to chime in before that time I would be very happy too :). ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list -- Follow me on Twitter @diplojocus ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
Re: [PD] Sum of delays...
Hi Mario, On Mon, Sep 23, 2013 at 08:44:15PM -0300, Mario Mey wrote: Your router.pd is the one I was looking for for the router connection. Because I had done a dozens-of-wires connection... a mess. I use that technics, now, it is beautifull. Thank you. Great to hear! Is it better to have controls outside the audio-working abstracts and subpatches? I mean, having abstracts and subpatches without GOP and having all the buttons connected with send and receive from properties? I hate this method... but, if it is better... GUI objects that don't receive any input through their inlets, their receives or by mouse don't use any CPU ressources. So feel free to keep them wherever you want. But when you control the patch via tablet, make sure you completly bypass the GUI objects for maximum performance. Ciao -- Frank ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
[PD] [PD-announce] PuREST JSON 0.14.0 released
Hello, I am happy to announce version 0.14.0 of PuREST JSON, code name: Davo. PuREST JSON is a library for working with RESTful HTTP webservices, and JSON data. Authentication and authorization for webservices are available with basic HTTP auth, cookie authentication, and OAuth. As an example for OAuth authenticated webservices, a Twitter client is included. Changes in this version: - Downloading to file - Cancelling of requests possible - [rest] and [oauth] now use libcurl multi interface internally Github repository: https://github.com/residuum/PuRestJson Source code packages: https://github.com/residuum/PuRestJson/releases Binaries for Windows and Debian i386 and amd64: http://ix.residuum.org/pd/purest_json.html Build instructions for all platforms: https://github.com/residuum/PuRestJson/wiki/Compilation Have fun, Thomas -- Chaney was aware that anything, however small, can get the eye of the media if it's repulsive enough. (Robert Anton Wilson - The Universe Next Door) http://www.residuum.org/ ___ Pd-announce mailing list pd-annou...@iem.at http://lists.puredata.info/listinfo/pd-announce ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
Re: [PD] from poles/zeros to biquad coefficients - how to? (something like max's z-plane)
This is the online tool: http://kmt.hku.nl/~pieter/cgi-bin/resp/nph-PZT.cgi. damn, it says it cant load it here :P but this seems like a simple formula to try out, from what you copied here. If that's all, and if I got what it means, I can see a patch coming right now :) let's see! thanks 2013/9/24 Funs Seelen funssee...@gmail.com Hi Alexandre, This is the online tool: http://kmt.hku.nl/~pieter/cgi-bin/resp/nph-PZT.cgi. It starts with an example and every time you refresh the page it gives you a new one. If you scroll down there's a link that tells you how the coefficients were calculated, e.g.: 2 zeros give 3 coefficients: *a0* = G *a1* = -G(Z0 + Z1) *a2* = G(Z0*Z1) 2 poles give 3 coefficients: *b0* = 1 *b1* = -(P0 + P1) *b2* = (P0*P1) The linear difference equation is derived from these as you can see. Regards, --Funs On Tue, Sep 24, 2013 at 7:36 AM, Alexandre Torres Porres por...@gmail.com wrote: for what i see, it's not some sort of straight formula, right? seems a bit more complicated than that. cheers 2013/9/23 Funs Seelen funssee...@gmail.com On Mon, Sep 23, 2013 at 5:35 PM, Alexandre Torres Porres por...@gmail.com wrote: thanks, here's a pic of what I have so far https://fbcdn-sphotos-g-a.akamaihd.net/hphotos-ak-prn1/11212_10151872996046683_1825736206_n.jpg Cool. For extra inspiration you could have a look at PoZeTools It sure does look like what I need. Thanks. But extracting what I need to know about the math of converting from coordinates to coefficients was just over my head :P unfortunately, sorry. I was hoping for something simpler, like just the operations needed. If the info is in code, I need it to more explicit. I'd really appreciate if anyone knows how to read from this and just points it out for me so I can put it in a patch. I'm assuming it's rather simple math I remember I once learned how to do this but never repeated the practice. If I find time to do that I would gladly try to figure it out again, but if someone more experienced feels the urge to chime in before that time I would be very happy too :). ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
Re: [PD] from poles/zeros to biquad coefficients - how to? (something like max's z-plane)
one doubt emerges really soon anyway. Since they are complex (there are two coordinate numbers for each pole and zero) how do I get only one number by, for example, summing or multiplying one pole to the other? as in: *b1* = -(P0 + P1) *b2* = (P0*P1) cheers! 2013/9/24 Alexandre Torres Porres por...@gmail.com This is the online tool: http://kmt.hku.nl/~pieter/cgi-bin/resp/nph-PZT.cgi. damn, it says it cant load it here :P but this seems like a simple formula to try out, from what you copied here. If that's all, and if I got what it means, I can see a patch coming right now :) let's see! thanks 2013/9/24 Funs Seelen funssee...@gmail.com Hi Alexandre, This is the online tool: http://kmt.hku.nl/~pieter/cgi-bin/resp/nph-PZT.cgi. It starts with an example and every time you refresh the page it gives you a new one. If you scroll down there's a link that tells you how the coefficients were calculated, e.g.: 2 zeros give 3 coefficients: *a0* = G *a1* = -G(Z0 + Z1) *a2* = G(Z0*Z1) 2 poles give 3 coefficients: *b0* = 1 *b1* = -(P0 + P1) *b2* = (P0*P1) The linear difference equation is derived from these as you can see. Regards, --Funs On Tue, Sep 24, 2013 at 7:36 AM, Alexandre Torres Porres por...@gmail.com wrote: for what i see, it's not some sort of straight formula, right? seems a bit more complicated than that. cheers 2013/9/23 Funs Seelen funssee...@gmail.com On Mon, Sep 23, 2013 at 5:35 PM, Alexandre Torres Porres por...@gmail.com wrote: thanks, here's a pic of what I have so far https://fbcdn-sphotos-g-a.akamaihd.net/hphotos-ak-prn1/11212_10151872996046683_1825736206_n.jpg Cool. For extra inspiration you could have a look at PoZeTools It sure does look like what I need. Thanks. But extracting what I need to know about the math of converting from coordinates to coefficients was just over my head :P unfortunately, sorry. I was hoping for something simpler, like just the operations needed. If the info is in code, I need it to more explicit. I'd really appreciate if anyone knows how to read from this and just points it out for me so I can put it in a patch. I'm assuming it's rather simple math I remember I once learned how to do this but never repeated the practice. If I find time to do that I would gladly try to figure it out again, but if someone more experienced feels the urge to chime in before that time I would be very happy too :). ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
Re: [PD] from poles/zeros to biquad coefficients - how to? (something like max's z-plane)
hey joe, this blog is awesome, I stumbled upon it too, they even have an applet that does the job I want, but no code or formulas around :P it's the closest thing I found on the subject in the internet... weird how I can't seem to find these formulas on google and all... cheers 2013/9/24 Joe White white.j...@gmail.com Hey Alexandre, This blog - EarLevel Engineeringhttp://www.earlevel.com/main/2003/02/28/biquads/ - really helped with my understanding of poles/zeros and biquads. Hope it's useful! Cheers, Joe On 24 September 2013 06:36, Alexandre Torres Porres por...@gmail.comwrote: for what i see, it's not some sort of straight formula, right? seems a bit more complicated than that. cheers 2013/9/23 Funs Seelen funssee...@gmail.com On Mon, Sep 23, 2013 at 5:35 PM, Alexandre Torres Porres por...@gmail.com wrote: thanks, here's a pic of what I have so far https://fbcdn-sphotos-g-a.akamaihd.net/hphotos-ak-prn1/11212_10151872996046683_1825736206_n.jpg Cool. For extra inspiration you could have a look at PoZeTools It sure does look like what I need. Thanks. But extracting what I need to know about the math of converting from coordinates to coefficients was just over my head :P unfortunately, sorry. I was hoping for something simpler, like just the operations needed. If the info is in code, I need it to more explicit. I'd really appreciate if anyone knows how to read from this and just points it out for me so I can put it in a patch. I'm assuming it's rather simple math I remember I once learned how to do this but never repeated the practice. If I find time to do that I would gladly try to figure it out again, but if someone more experienced feels the urge to chime in before that time I would be very happy too :). ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list -- Follow me on Twitter @diplojocus ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
Re: [PD] from poles/zeros to biquad coefficients - how to? (something like max's z-plane)
On Tue, Sep 24, 2013 at 2:36 PM, Alexandre Torres Porres por...@gmail.comwrote: This is the online tool: http://kmt.hku.nl/~pieter/cgi-bin/resp/nph-PZT.cgi. damn, it says it cant load it here :P It doesn't load here either. Perhaps the server is too busy since I put this link here and sent a thousand robots over. ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
Re: [PD] from poles/zeros to biquad coefficients - how to? (something like max's z-plane)
On Tue, Sep 24, 2013 at 2:50 PM, Alexandre Torres Porres por...@gmail.comwrote: one doubt emerges really soon anyway. Since they are complex (there are two coordinate numbers for each pole and zero) how do I get only one number by, for example, summing or multiplying one pole to the other? as in: *b1* = -(P0 + P1) *b2* = (P0*P1) You don't, the coefficients can be complex too. However, I discovered that mirroring (*) every pole and zero results in just real values without imaginary part. I don't have any mathematical proof for this, but it probably wouldn't be too hard to find such. *) adding another pole/zero for each complex one, like z=-j if you already have a z=j. ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
Re: [PD] from poles/zeros to biquad coefficients - how to? (something like max's z-plane)
well, not sure what you mean, again way over my head, but I was giving it a hard shot in the dark and it seemed to have worked out :) I just summed both parts of Z0, for instance, and tried the given math, numbers came out! now to make more tests and see if this is consistent, then finish the patch ;) thanks! 2013/9/24 Funs Seelen funssee...@gmail.com On Tue, Sep 24, 2013 at 2:50 PM, Alexandre Torres Porres por...@gmail.com wrote: one doubt emerges really soon anyway. Since they are complex (there are two coordinate numbers for each pole and zero) how do I get only one number by, for example, summing or multiplying one pole to the other? as in: *b1* = -(P0 + P1) *b2* = (P0*P1) You don't, the coefficients can be complex too. However, I discovered that mirroring (*) every pole and zero results in just real values without imaginary part. I don't have any mathematical proof for this, but it probably wouldn't be too hard to find such. *) adding another pole/zero for each complex one, like z=-j if you already have a z=j. ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
Re: [PD] from poles/zeros to biquad coefficients - how to? (something like max's z-plane)
On Tue, Sep 24, 2013 at 3:08 PM, Funs Seelen funssee...@gmail.com wrote: On Tue, Sep 24, 2013 at 2:50 PM, Alexandre Torres Porres por...@gmail.com wrote: one doubt emerges really soon anyway. Since they are complex (there are two coordinate numbers for each pole and zero) how do I get only one number by, for example, summing or multiplying one pole to the other? as in: *b1* = -(P0 + P1) *b2* = (P0*P1) You don't, the coefficients can be complex too. However, I discovered that mirroring (*) every pole and zero results in just real values without imaginary part. I don't have any mathematical proof for this, but it probably wouldn't be too hard to find such. I remembered again, it's called the complex conjugate. http://en.wikipedia.org/wiki/Complex_conjugate *) adding another pole/zero for each complex one, like z=-j if you already have a z=j. ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
Re: [PD] from poles/zeros to biquad coefficients - how to? (something like max's z-plane)
so you're basically saying all i need to use is use only the real part, right? my frankenstein was working and alive for several times until i tried some bandpass coeff, let's se if i fix this now :) 2013/9/24 Funs Seelen funssee...@gmail.com On Tue, Sep 24, 2013 at 3:08 PM, Funs Seelen funssee...@gmail.com wrote: On Tue, Sep 24, 2013 at 2:50 PM, Alexandre Torres Porres por...@gmail.com wrote: one doubt emerges really soon anyway. Since they are complex (there are two coordinate numbers for each pole and zero) how do I get only one number by, for example, summing or multiplying one pole to the other? as in: *b1* = -(P0 + P1) *b2* = (P0*P1) You don't, the coefficients can be complex too. However, I discovered that mirroring (*) every pole and zero results in just real values without imaginary part. I don't have any mathematical proof for this, but it probably wouldn't be too hard to find such. I remembered again, it's called the complex conjugate. http://en.wikipedia.org/wiki/Complex_conjugate *) adding another pole/zero for each complex one, like z=-j if you already have a z=j. ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
Re: [PD] from poles/zeros to biquad coefficients - how to? (something like max's z-plane)
hey, starting to see what you mean much more clear, cool, really excited. Thanks a lot! 2013/9/24 Alexandre Torres Porres por...@gmail.com so you're basically saying all i need to use is use only the real part, right? my frankenstein was working and alive for several times until i tried some bandpass coeff, let's se if i fix this now :) 2013/9/24 Funs Seelen funssee...@gmail.com On Tue, Sep 24, 2013 at 3:08 PM, Funs Seelen funssee...@gmail.comwrote: On Tue, Sep 24, 2013 at 2:50 PM, Alexandre Torres Porres por...@gmail.com wrote: one doubt emerges really soon anyway. Since they are complex (there are two coordinate numbers for each pole and zero) how do I get only one number by, for example, summing or multiplying one pole to the other? as in: *b1* = -(P0 + P1) *b2* = (P0*P1) You don't, the coefficients can be complex too. However, I discovered that mirroring (*) every pole and zero results in just real values without imaginary part. I don't have any mathematical proof for this, but it probably wouldn't be too hard to find such. I remembered again, it's called the complex conjugate. http://en.wikipedia.org/wiki/Complex_conjugate *) adding another pole/zero for each complex one, like z=-j if you already have a z=j. ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
Re: [PD] from poles/zeros to biquad coefficients - how to? (something like max's z-plane)
On Tue, Sep 24, 2013 at 3:35 PM, Alexandre Torres Porres por...@gmail.comwrote: so you're basically saying all i need to use is use only the real part, right? No, I meant that I have the idea that the imaginary part in the calculated coefficients will disappear automatically if you add complex conjugates for all poles and zeros, probably when somehow i^2 gets -1 somewhere. But I must say I'm not a mathematician and not sure at all. ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
Re: [PD] prevent opening of patches
yes, exactly what I was thinking about. thanks Ivica. M -- Marco Donnarumma New Media + Sonic Arts Practitioner, Performer, Teacher, Director. Embodied Audio-Visual Interaction Research Team. Department of Computing, Goldsmiths University of London ~ Portfolio: http://marcodonnarumma.com Research: http://res.marcodonnarumma.com Director: http://www.liveperformersmeeting.net On Mon, Sep 23, 2013 at 4:53 AM, Ivica Ico Bukvic i...@vt.edu wrote: FWIW, the latest pd-l2ork release has a “-unique” flag (disabled by default) so whenever you open a new file by double-clicking inside a file browser, it will open it inside an existing instance (if any) or spawn a new instance (if none). Spawning instances with –unique flag will force creation of a new instance. ** ** *From:* pd-list-boun...@iem.at [mailto:pd-list-boun...@iem.at] *On Behalf Of *Marco Donnarumma *Sent:* Sunday, September 22, 2013 7:14 AM *To:* pd-list@iem.at *Subject:* Re: [PD] prevent opening of patches ** ** That's useful, but up until recently you had to create a second instance of Pd from the command line anyway, since OSX would show you the instance you already had if you tried to open it from the operating system. Or...have I missed the point? My friend and collaborator always needs two Pd's, one for Gemnotes and one for audio processing, to play my musioc...and we wrote a BASH script to launch the gemnotes one after the audio one was set up. ** ** well, personally most times, when developing, I need to create abstractions and use global variables just to experiment with stuff. And if two instances of Pd are opened when you don't want it, it can be very annoying. Even worst scenario when you are teaching, student might open 4 patches at a time, and as 4 Pd instances are launched, and it's a mess. I always wondered whether we could have a flag in Pd GUI that set this kind of configuration. Like, always open a new Pd instance, always use one Pd only... something like that. imho it would be useful. cheers, M ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
Re: [PD] [change] bug?
Ah but then if [change] used null by default, it wouldn't actually work by default ... that seems far worse then the reasonable default of 0. On Sep 23, 2013, at 10:19 PM, pd-list-requ...@iem.at wrote: From: Mario Mey mario...@gmail.com Subject: Re: [PD] [change] bug? Date: September 23, 2013 6:55:36 PM CDT Cc: pd-list pd-list@iem.at Well, if it is me... yes, I would like to have NULL as init value. Dan Wilcox @danomatika danomatika.com robotcowboy.com ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
Re: [PD] from poles/zeros to biquad coefficients - how to? (something like max's z-plane)
Checkout [e_beequad] [u_lowpass], [u_highpass1], [u_bandpass], etc in rjlib The [u_lowpass] etc objects calculate the given coefficients for biquad from the desired frequency and bandwidth ... On Sep 24, 2013, at 3:48 AM, pd-list-requ...@iem.at wrote: From: Alexandre Torres Porres por...@gmail.com Subject: Re: [PD] from poles/zeros to biquad coefficients - how to? (something like max's z-plane) Date: September 24, 2013 12:36:27 AM CDT To: Funs Seelen funssee...@gmail.com Cc: pd-lista puredata pd-list@iem.at for what i see, it's not some sort of straight formula, right? seems a bit more complicated than that. cheers Dan Wilcox @danomatika danomatika.com robotcowboy.com ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
Re: [PD] from poles/zeros to biquad coefficients - how to? (something like max's z-plane)
after some shots in the dark, adjustments and stuff, I was able to make it work really well... thanks a lot again, will put this out hopefully soon after I clean it up and include some features. Cheers 2013/9/24 Dan Wilcox danomat...@gmail.com Checkout [e_beequad] [u_lowpass], [u_highpass1], [u_bandpass], etc in rjlib https://github.com/rjdj/rjlib/tree/master/rj The [u_lowpass] etc objects calculate the given coefficients for biquad from the desired frequency and bandwidth ... On Sep 24, 2013, at 3:48 AM, pd-list-requ...@iem.at wrote: *From: *Alexandre Torres Porres por...@gmail.com *Subject: **Re: [PD] from poles/zeros to biquad coefficients - how to? (something like max's z-plane)* *Date: *September 24, 2013 12:36:27 AM CDT *To: *Funs Seelen funssee...@gmail.com *Cc: *pd-lista puredata pd-list@iem.at for what i see, it's not some sort of straight formula, right? seems a bit more complicated than that. cheers Dan Wilcox @danomatika danomatika.com robotcowboy.com ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
Re: [PD] from poles/zeros to biquad coefficients - how to? (something like max's z-plane)
On 24/09/13 21:46, Funs Seelen wrote: On Tue, Sep 24, 2013 at 3:35 PM, Alexandre Torres Porres por...@gmail.comwrote: so you're basically saying all i need to use is use only the real part, right? No, I meant that I have the idea that the imaginary part in the calculated coefficients will disappear automatically if you add complex conjugates for all poles and zeros, probably when somehow i^2 gets -1 somewhere. But I must say I'm not a mathematician and not sure at all. indeed it will ... a conjugate is the number with the imaginary part negated ... so adding a number and its conjugate will certainly end up with a real part only. Simon ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
Re: [PD] [change] bug?
On 09/24/2013 10:16 AM, Dan Wilcox wrote: Ah but then if [change] used null by default, it wouldn't actually work by default ... that seems far worse then the reasonable default of 0. If it had _originally_ defaulted to null and had a reset message or something to return it to null state, that would be the reasonable behavior. Especially if Pd had a (sensible) user-facing API to check for existence of floatargs instead of bashing them to zero, because then the user wouldn't always take for granted that no floatarg probably means 0. But the null behavior can be achieved with a relatively painless hack, and amending [change] would break patches and create more complexity so I wouldn't argue to change that behavior now. -Jonathan On Sep 23, 2013, at 10:19 PM, pd-list-requ...@iem.at mailto:pd-list-requ...@iem.at wrote: *From:*Mario Mey mario...@gmail.com mailto:mario...@gmail.com *Subject:**Re: [PD] [change] bug?* *Date:*September 23, 2013 6:55:36 PM CDT *Cc:*pd-list pd-list@iem.at mailto:pd-list@iem.at Well, if it is me... yes, I would like to have NULL as init value. Dan Wilcox @danomatika danomatika.com http://danomatika.com robotcowboy.com http://robotcowboy.com ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
Re: [PD] from poles/zeros to biquad coefficients - how to? (something like max's z-plane)
On Tue, Sep 24, 2013 at 6:32 PM, Simon Wise simonzw...@gmail.com wrote: On 24/09/13 21:46, Funs Seelen wrote: On Tue, Sep 24, 2013 at 3:35 PM, Alexandre Torres Porres por...@gmail.comwrote: so you're basically saying all i need to use is use only the real part, right? No, I meant that I have the idea that the imaginary part in the calculated coefficients will disappear automatically if you add complex conjugates for all poles and zeros, probably when somehow i^2 gets -1 somewhere. But I must say I'm not a mathematician and not sure at all. indeed it will ... a conjugate is the number with the imaginary part negated ... so adding a number and its conjugate will certainly end up with a real part only. Yes, true, and the imaginary part disappears as well when multiplying if the real parts are equal, e.g.: i^2 = -1, so ... (0.5 + 0.5i) * (0.5 - 0.5i) = 0.25 + 0.25i - 0.25i - 0.25i^2 = 0.5 Simon __**_ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/** listinfo/pd-list http://lists.puredata.info/listinfo/pd-list ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
Re: [PD] from poles/zeros to biquad coefficients - how to? (something like max's z-plane)
On Tue, Sep 24, 2013 at 6:13 PM, Alexandre Torres Porres por...@gmail.comwrote: after some shots in the dark, adjustments and stuff, I was able to make it work really well... thanks a lot again, will put this out hopefully soon after I clean it up and include some features. Cheers Great! Thank you for the effort of creating this work. I'm looking forward to it :). ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
[PD] [PD-announce] Biomediations, sound and body performance at TransitioMX, Mexico DF
(sorry for x-post) 25th September Mexico City, h 17.00 Award ceremony + Biophysical music performance CENART, Centro Nacional de Las Artes ~~ Dear all, my latest private installation work Nigredo (made with Linux, the Xth Sense and Pd), created this February during a residency at STEIM with Marije Baalman and other collaborators, has been nominated for the TransitioMX award. http://marcodonnarumma.com/works/nigredo/ In occasion of the award ceremony, tomorrow 25th September at the CENART in Mexico City, I'll be performing a 30 minutes concert for biophysical music, combining my earliest Xth Sense composition Music for Flesh II with Ominous, the very latest music piece recently committed by the European Conference of Promoters of New Music. If you're around, be sure to come for this exciting event, and also to visit the related exhibition with national and international artworks drawing upon this year's theme of Biomediations,* *with Artistic Director Dra. Joanna Zylinska. Info: http://transitiomx.net/index.html hope to see some of you there, best wishes, -- Marco Donnarumma New Media + Sonic Arts Practitioner, Performer, Teacher, Director. Embodied Audio-Visual Interaction Research Team. Department of Computing, Goldsmiths University of London ~ Portfolio: http://marcodonnarumma.com Research: http://res.marcodonnarumma.com Director: http://www.liveperformersmeeting.net ___ Pd-announce mailing list pd-annou...@iem.at http://lists.puredata.info/listinfo/pd-announce ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
