Pd-list July 2008

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111 participants
206 discussions

Speed of messages (WII-OSC..etc)
by Luigi Rensinghoff 22 Jul '08

22 Jul '08

Hi dear List I have a question regarding my Wiimote-OSC experiments. The wiimote data gets into PD via OSC, either through OSculator or through a linuxbox running the wiimote external. So i have problems computing really really fast movements from the wiimote and i would like to ask if somebody knows about the speed of messages, be it in OSC, PD or Osculator 1) What do you think is a reasonable message-rate for fast motion- data ? I have the impression i need to slow down the data (with speedlim, pipe or resample) to be able to process it properly - any experience with that or recommendations ? 2) What would you consider the bottleneck ? 3) Could it be an advantage to transform incoming OSC-messages into a signal ? instead of dealing with floats ? The idea behind it is to combine x-y IR Data from the wii with the accelleration data (Mapping accelleration to velocity, but catch the note from the IR-Position) Did anybody find a good solution for that ? Thanks Luigi >---------------------------------------< Luigi Rensinghoff luigi.rensinghoff(a)freenet.de skype:gigischinke ichat:gigicarlo

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[PD-announce] Pd-0.40.3-extended-rc2 released
by Hans-Christoph Steiner 22 Jul '08

22 Jul '08

For this release, there has been a lot of work in making the GUI and user experience much more fluid and easy. There is a new visual look that was designed to make patches more readable. Additionally, lots of things have been tweaked to make Pd behave more like a normal app. There has already been a lot of testing on these builds, so it is getting quite close to a final version. (Debian/PowerPC is missing now but will come later) http://at.or.at/hans/pd/installers.html Here is a partial changelog: - next visual appearance designed for readability - default locations for user-installed externals, helpfiles, etc. GNU/Linux: /usr/local/lib/pd-externals and ~/pd-externals Mac OS X: /Library/Pd and ~/Library/Pd Windows: %ProgramFiles%/Common Files/Pd and %UserProfile%/ Application Data/Pd - lots of standard key bindings added: Enter/Return for OK Escape for Cancel Ctrl/Cmd-W closes all windows on Mac OS X, Cmd-` cycles thru open windows on Mac OS X, Cmd-m minimizes windows Ctrl/Cmd-R raises/lowers Pd window Ctrl/Cmd-Shift-R shrinks/grows Pd window Ctrl/Cmd-Shift-L clears Pd window's text console Ctrl/Cmd-B opens the Help Browser - you can now use "~" in all paths to mean home folder, and on Windows you can use environment variables, lie %UserProfile% in paths - Cut/Copy/Paste now work directly into object and message boxes on all platforms - fixed Cut/Copy/Paste for the Pd window's console - [declare] and [import] now sorted out for loading (but much work needs to be done before there namespace support is complete) - "File -> Save As" defaults to the Home folder (~/) on Mac OSX - new patches default to the folder last saved in - included pgp_opengl aka 3dp on GNU/Linux and Mac OS X - 'hardware' and 'deprecated' removed from libraries loaded by default - On Debian/Ubuntu, the packages now install into /usr rather than / usr/local - On Mac OS X, you can now build "standalone" applications from the File menu. KNOWN BUGS - check http://puredata.info/dev/bugtracker before reporting bugs - Escape, Enter, and Ctrl/Cmd-W don't close the Path and Startup preferences - pdp_opengl is alpha and will definitely crash Pd - loading pdp_opengl will crash Pd if X11 is not open before trying to load it - the GUI runs slower on some older Macs ------------------------------------------------------------------------ ---- I spent 33 years and four months in active military service and during that period I spent most of my time as a high class muscle man for Big Business, for Wall Street and the bankers. - General Smedley Butler _______________________________________________ Pd-announce mailing list Pd-announce(a)iem.at http://lists.puredata.info/listinfo/pd-announce

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Re: [PD] aka.wiiremote now gets data with bangs
by Hans-Christoph Steiner 22 Jul '08

22 Jul '08

There are already GNU/Linux and Windows objects for Pd: GNU/Linux: http://mikewoz.com/index.php?page=pd-stuff Windows: http://code.google.com/p/wiisense/ .hc On Jul 22, 2008, at 2:11 PM, Hugh Sung wrote: > Thanks for working on this! Any chance that you will be developing > a version for PC users? I'd love to incorporate the wii in future > projects! > > On 7/22/08, Hans-Christoph Steiner <hans(a)eds.org> wrote: > > I made a little progress with the aka.wiiremote port for Mac OS X. > You can now get the accelerometer data using bangs. It seems that > not much else works though. Try it out and see what you can do with > it. It's compiled as a universal binary: > > http://at.or.at/hans/pd/objects.html > > .hc > > > ---------------------------------------------------------------------- > -- > ---- > > Computer science is no more related to the computer than astronomy is > related to the telescope. -Edsger Dykstra > > > > _______________________________________________ > Pd-list(a)iem.at mailing list > UNSUBSCRIBE and account-management -> http://lists.puredata.info/ > listinfo/pd-list > > > > -- > Hugh Sung > www.hughsung.com > www.TabletPCMusician.com > www.musicmeetstech.com ------------------------------------------------------------------------ ---- All information should be free. - the hacker ethic

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Re: [PD] pd clicking with jack/linux
by Julian Peterson 22 Jul '08

22 Jul '08

Hello list. I am getting the exact same issue mentioned by Atte Jensen. Was there ever a solution? I've already tried all of the typical optimizations: rt-kernel, rt-priorities straight, tinkering with jack settings, etc. I get this even with the built-in test audio/midi patch. Atte-- are you running 64bit ubuntu? Thanks, JP " Hi I get clicks and "DIO errors" at random intervals under linux/ubuntu with jack (no xruns). I have a 17ms latency setup with jack and a realtime patched kernel and the rest of my audio setup works great with jack. I installed pd from Pd-0.40.3-extended-20080628-ubuntu-gutsy-i386.deb Any one else running a similar pd with a similar setup and either have it working or experience the same problems? -- peace, love & harmony Atte http://atte.dk | http://myspace.com/attejensen http://anagrammer.dk | http://modlys.dk "

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aka.wiiremote now gets data with bangs
by Hans-Christoph Steiner 22 Jul '08

22 Jul '08

I made a little progress with the aka.wiiremote port for Mac OS X. You can now get the accelerometer data using bangs. It seems that not much else works though. Try it out and see what you can do with it. It's compiled as a universal binary: http://at.or.at/hans/pd/objects.html .hc ------------------------------------------------------------------------ ---- Computer science is no more related to the computer than astronomy is related to the telescope. -Edsger Dykstra

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Re: [PD] bcr2000 and midi-feedback
by Jason Plumb 22 Jul '08

22 Jul '08

> The problem is that pd sends it's send-symbol, even if the fader is > moved as a result of the receive-symbol. This means that the bcr get's > the value right back, with a small delay, which causes the whole to be > very reluctent to accept movements from the bcr. I had to solve a similar problem in a few patches with my bcr2000, so I wrote a few small "helper" abstractions. I wanted to be able to move the controller and have it update a UI element in pd, and vice versa -- and I needed them to be in sync all the time. You can get these two abstractions here: http://noisybox.net/computers/pd/ctrl_sync.pd http://noisybox.net/computers/pd/nrpn_sync.pd They basically encapsulate the logic around spigot as Luigi suggested. Input the signal from a UI element (slider/ui/etc) into the top and feed back the control output back to the UI element. They're simple, so you should hopefully be able to extend them easily. They're a little stupid in that they assume a control range with 0 at the low end...but they helped clean up some patches and keep things in sync. -jason

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freehand drawing on video in GEM
by Spencer Russell 22 Jul '08

22 Jul '08

I need to blob track a point of light in a video and use it to draw freehand in the GEM window, possibly mixed with previously-recorded video clips. I'd also like to connect the adjacent points with lines so that the drawing is continuous. I'm still pretty new to GEM, but I'm working on getting my head around all the render order and buffering ideas, I'm just not sure what the best approach is. I've tried using gemframebuffer going to a pix_snap, but it takes up 100% CPU, so I figure there's got to be a better way. Is there some sort of way I can just keep appending vertices to a list and use something like [curve]? Thanks, spencer

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bcr2000 and midi-feedback
by Atte André Jensen 22 Jul '08

22 Jul '08

Hi I have assigned a knob on my bcr2000 to a vertical slider in pd. Under the sliders properties, I have set send-symbol and receive-symbol to "send" and "rec". I then have [ctlin 1] | [/ 127] | [s rec] [r send] | [* 127] | [ctlout 1] This basically works, the upper one is receiving from the bcr and moving the fader in pd, the lower one is updating the display on the bcr when the knob is moved in pd. The problem is that pd sends it's send-symbol, even if the fader is moved as a result of the receive-symbol. This means that the bcr get's the value right back, with a small delay, which causes the whole to be very reluctent to accept movements from the bcr. I could make some logic that doesn't send the value back if it was received from midi, but thought I'd ask if there was a simpler solution? For instance is it possible to have pd's knobs *not* send it's send-symbol if the fader was moved as a result of a receive-symbol? -- peace, love & harmony Atte http://atte.dk | http://myspace.com/attejensen http://anagrammer.dk | http://modlys.dk

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script.lua (in pdmtl abs)
by Alexandre Quessy 22 Jul '08

22 Jul '08

Hello, I think I forgot to mention that I created a nice abstraction wrapper for [lua] and [luax]. It defaults to opening a *.pd_luax, but you can open a *.pd_lua by providing it the argument @luax 0. It is in the PdMtlAbstractions. Any comments welcome. Cheers, -- Alexandre Quessy http://alexandre.quessy.net http://www.puredata.info/Members/aalex

1 0

make money not art
by marius schebella 22 Jul '08

22 Jul '08

Hi, has someone experience in distributing and probably selling pd standalones? I was thinking of a combination of flash interface (or Gem?) and sound patch. right now I think the best way to do this would be to create an executable application for every platform and architecture including the used external libraries. The patch would start up in -nogui mode, although I am not sure how to handle sound settings from within the application. In case I wanted to use Gem, besides from including the license, would I also have to include the Gem sourcecode in the package? marius.

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Pd-list July 2008