Pd-list June 2009

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121 participants
152 discussions

K8061 USB interface board in PD on Mac
by Wilfred de Zoete 16 Jun '09

16 Jun '09

Hello everybody, for some interface experiments I got hold of an USB interface kit from Velleman, the K8061. More info: http://www.velleman.be/ot/en/product/view/?id=364910 This board comes with software for windows computers, a.o. a .dll file for communication. My system is a MacBook Pro november 2008 with OS X 10.5.6. Are there people out there who have already used this board in Pure Data and/or on Mac OS X? I have already tried to get some data out of it with HID and although HID works good for joysticks and game controllers it does not get data from this kit. Thanks in advance! Wilfred

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Techniques for atomic/controlled variable updates
by Fred Smith 16 Jun '09

16 Jun '09

Hello all - I'm currently building a simple video project using PD and GEM that creates a video stream by combining a series of images in various ways based on a single input control signal. Simply put, the input signal is processed to produce indexes into arrays of images, and to provide some parameters for blending those images to produce the visual output. The problem I'm having is that the single input parameter is processed to generate 4 control parameters for GEM - 2 indexes into the image list, and 2 gain scale factors used when blending the images. The issueis that when a control values enters the system, the 4 output parameters are updated in an order dictated by the messaging architecture of puredata - and, as the 4 output parameters are updated, they are momentarily inconsistent with each other. <input_value> | | <pd mathematical what-have-you> | | | | <out1> <out2> <out3> <out4> So, an input value enters the system, and the outputs are updated based on the depth first traversal of the patch - out1, then out2, then out3, then out4. Meanwhile, GEM is rendering the output to the screen. So, suppose out1 then out2 get updated, and GEM renders a screen shot. At that point in time, out1 and out2 correspond to the new input parameter, and out3 and out4 correspond to the previous input parameter, and the resulting display shows artifacts of this inconsistency. I've managed to resolve my specific project's issue by rewriting the control algorithm such that the inconsistencies minimize the visual artifacts, but the fundamental update order problem remains unsolved, and I'm curious if others have dealt with this type of issue. Can anyone point me to techniques for managing this type of problem? I'm considering writing an external that would pass a set of values through, but only update the outputs when a specific mathematical condition is met (some consistency check on the input parameters) - but, it seems like there may already be techniques for doing this..... Any pointers would be appreciated.... Thanks! -fred

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pd + git
by cristiano figueiró 16 Jun '09

16 Jun '09

Hi everyone, A little question about work with git in patch repositorys: Can i acces directly in pd my older revisions? I'm doing in the wrong way i think, i pickup some commit id and save with another name and than open pd :p thanks cristiano

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PureData Bootcamp, Cardiff UK- Sept
by simon kilshaw 16 Jun '09

16 Jun '09

Please excuse the cross posting: PureData Bootcamp Tuesday 1 September - Saturday 5 September The Royal Welsh College of Music and Drama is proud to offer an intensive 5 day PureData workshop. PureData is a free and open source real-time graphical programming environment used by artists to create a range of visual arts, theatre, dance, audio, installation, performance and media art works. This intensive boot-camp is designed for artists working in different media to explore the capabilities of PureData to create interactive environments, real-time sound design, physical modeling, manipulation of live visuals and interface authoring. The course will culminate in a performance/ installation/ concert of the work realised during the week. Participants are welcome to bring their own laptops, but full resources are provided. To apply for this course, please download the registration form here or contact the Events Team to receive a registration form via email or post Cost: £200 + VAT ***Early Bird Offer*** £100 + VAT Only Until August 1st How to Book Complete the booking form and return, enclosing a cheque or credit card payment details, to: Events Team, Royal Welsh College of Music & Drama, Castle Grounds, Cathays Park, Cardiff CF10 3ER For a hard copy of the booking form contact the Events Team on 029 2039 1391 or email: shortcourses(a)rwcmd.ac.uk Although there is no application deadline, places are limited so early booking is recommended Additional Information If you have a disability please provide sufficient information at the time of booking so we can consider any special arrangements necessary The restaurant at the College will be open at lunchtime for the purchase of hot and cold meals Accommodation can be arranged through the College at Severn Point, the privately owned RWCMD Halls of Residence, at a cost of £20 per night. Severn Point offers indiviudal en-suite rooms which are arranged in flats of 6 bedrooms around a communal living and kitchen space. The Halls are aproximately 12 minutes walk from the College. To book a place in the Halls of Residence please fill out the booking form and return to the Events Team 3 weeks before the start of your course. If you require more information about any aspect of the accommodation please contact the Events Team on 029 20391 391. Further Queries If you have any queries about any aspect of this summer school please contact the Events Team on 029 20391 391 Terms and Conditions This course is suitable for individuals aged 16 + only. All information is correct at the time of writing; however, should there be any changes to general information, course content or tutors, students will be informed prior to the start of the Summer School For further information, contact: Events Team on 029 2039 1391 http://www.rwcmd.ac.uk/ Royal Welsh College of Music & Drama, Castle Grounds, Cathays Park, Cardiff CF10 3ER A subsidiary of the University of Glamorgan Company registration 6013744, registered in England and Wales Coleg Brenhinol Cerdd a Drama Cymru, Maes y Castell, Parc Cathays, Caerdydd CF10 3ER Is-gwmni Prifysgol Morgannwg Cofrestriad cwmni 6013744, a gofrestrwyd yn Lloegr a Chymru

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Re: [PD] Techniques for atomic/controlled variable updates
by Jonathan Wilkes 16 Jun '09

16 Jun '09

--- On Tue, 6/16/09, Fred Smith <fxsmith(a)gmail.com> wrote: > From: Fred Smith <fxsmith(a)gmail.com> > Subject: [PD] Techniques for atomic/controlled variable updates > To: pd-list(a)iem.at > Date: Tuesday, June 16, 2009, 1:21 AM > Hello all - > > I'm currently building a simple video project using PD and > GEM that > creates a video stream by combining a series of images in > various ways > based on a single input control signal. Simply put, the > input signal > is processed to produce indexes into arrays of images, and > to provide > some parameters for blending those images to produce the > visual > output. > > The problem I'm having is that the single input parameter > is processed > to generate 4 control parameters for GEM - 2 indexes into > the image > list, and 2 gain scale factors used when blending the > images. The > issueis that when a control values enters the system, the 4 > output > parameters are updated in an order dictated by the > messaging > architecture of puredata - and, as the 4 output parameters > are > updated, they are momentarily inconsistent with each > other. > > <input_value> > | > | > <pd mathematical what-have-you> > | | > | > | > <out1> <out2> > <out3> <out4> > > So, an input value enters the system, and the outputs are > updated > based on the depth first traversal of the patch - out1, > then out2, > then out3, then out4. Meanwhile, GEM is rendering the > output to the > screen. So, suppose out1 then out2 get updated, and GEM > renders a > screen shot. At that point in time, out1 and out2 > correspond to the > new input parameter, and out3 and out4 correspond to the > previous > input parameter, and the resulting display shows artifacts > of this > inconsistency. > > I've managed to resolve my specific project's issue by > rewriting the > control algorithm such that the inconsistencies minimize > the visual > artifacts, but the fundamental update order problem remains > unsolved, > and I'm curious if others have dealt with this type of > issue. > > Can anyone point me to techniques for managing this type of > problem? > I'm considering writing an external that would pass a set > of values > through, but only update the outputs when a specific > mathematical > condition is met (some consistency check on the input > parameters) - > but, it seems like there may already be techniques for > doing this..... It's hard to know without an example patch, but why not use <pack f f f f> | | | | <unpack f f f f> after your "mathematical-what-have-you" abstraction? I'm assuming your abstraction follows the same right to left output standard of most Pd objects, but even if it doesn't you can still use <t b a> to trigger the hot inlet of pack. -Jonathan > > Any pointers would be appreciated.... > Thanks! > -fred > > _______________________________________________ > Pd-list(a)iem.at > mailing list > UNSUBSCRIBE and account-management -> http://lists.puredata.info/listinfo/pd-list >

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[PD-announce] Pd 0.42-5 released
by Miller Puckette 16 Jun '09

16 Jun '09

Pd version 0.42-5 is ready: http://crca.ucsd.edu/~msp/software.htm or via svn: svn checkout https://pure-data.svn.sourceforge.net/svnroot/pure-data/trunk/pd/ Bug fixes: abs~, log~, pd~ -ninsig 0. The 32 channel limit for ASIO and on Mac is no longer imposed. A -noautopatch startup flag stops Pd from auto-connecting to new objects (which some people seem to hate :) cheers Miller _______________________________________________ Pd-announce mailing list Pd-announce(a)iem.at http://lists.puredata.info/listinfo/pd-announce

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[PD-announce] Pd club Providence - 1st meeting, June 24
by Shawn Greenlee 15 Jun '09

15 Jun '09

Pd club - 1st meeting! http://www.as220.org/labs/pd/ Wednesday, June 24 7:00 - 8:30 PM AS220 Labs 115 Empire St., 2nd floor Providence, RI 02903 USA Come down to AS220 Labs and join the Pd club for it's first meeting!!! The Pd club will be a periodic, informal gathering (a "patching circle") where Providence-area "patchers" can work together, exchange ideas, trouble-shoot, and learn from one-another. The club is open to all, from beginners to experts. Artists, students, teachers, programmers, hobbyists, and the "just-curious" are welcome. The only requirements are that you like a challenge and have a laptop. On the agenda for the first meeting will be an introduction to Pd by Shawn Greenlee. Shawn will cover the basics of patching, working with sound, and handling communication with Arduino boards and MIDI devices. Before the meeting adjourns, we'll get beginners up and running and determine the summer schedule for meetings. What to bring: your laptop with Pd-extended installed. ------------------------------------------- Shawn Greenlee http://greenlee.02909.com seg(a)02909.com ------------------------------------------- _______________________________________________ Pd-announce mailing list Pd-announce(a)iem.at http://lists.puredata.info/listinfo/pd-announce

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sound and video
by Jose Luis Santorcuato 15 Jun '09

15 Jun '09

Dear friends.... i can run videos, fx, and others, but not the sound of the videos... how connect the audio for videos....mov ....mp4....??? Can you send me the draw or patch? I use OSX and Ubuntu Greetings from Chile José -- http://www.chilemigra.cl http://arselectronicachile.blogspot.com http://www.myspace.com/santorcuato

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gem and double buffer
by Andres Ferrari 15 Jun '09

15 Jun '09

hello, is possible in gem to change between single buffer and double buffer without destroy gemwindow?? or dont`t clear buffer(background image) in double buffer??? thanks a lot!!! Andrés Ferrari G. http://www.myspace.com/anfex ____________________________________________________________________________________ ¡Obtén la mejor experiencia en la web! Descarga gratis el nuevo Internet Explorer 8. http://downloads.yahoo.com/ieak8/?l=e1

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Re: [PD] sound and video
by Alvaro 15 Jun '09

15 Jun '09

Hola Jose, if you are using Ubuntu and you have sound in other applications, then this might be a codec problem. Please open Synaptic (or whatever package manager you use) and check if the packages "non-free-codecs", "ubuntu-restricted-extras" and "libquicktime1" are installed. alvaro > Message: 2 > Date: Sun, 14 Jun 2009 16:28:20 -0400 > From: Jose Luis Santorcuato <santorcuato76(a)gmail.com> > Subject: [PD] sound and video > To: PD List <pd-list(a)iem.at> > Message-ID: > <4345df630906141328y1e184d16i469fb7f851aadce(a)mail.gmail.com> > Content-Type: text/plain; charset="iso-8859-1" > Dear friends.... i can run videos, fx, and others, but not the sound of the > videos... how connect the audio for videos....mov ....mp4....??? Can you > send me the draw or patch? > I use OSX and Ubuntu > Greetings from Chile > Jos?

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Pd-list June 2009