Pd-list June 2008

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124 participants
197 discussions

Pd FLOSS Manual: ConfiguringPD
by Derek Holzer 24 Jun '08

24 Jun '08

Dear list, I've just updated the chapter on configuring Pd for the Pd FLOSS Manual. If you have a second, please take a look and see if everything is clear (and correct!). Also, I'd like to ask a Windows user to upload a screenshot (max width=600 pixels) of using REGEDIT.EXE to edit the pdsettings as described in the chapter. It's very easy to make a login for yourself on the FLOSS Manuals page, and I will review and publish the changes as soon as I see them! http://flossmanuals.net/PureData/ConfiguringPD Thanks! Derek -- derek holzer ::: http://www.umatic.nl ::: http://blog.myspace.com/macumbista ---Oblique Strategy # 58: "Do we need holes?"

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[PD-announce] Pduino 0.4 beta0 released
by Hans-Christoph Steiner 24 Jun '08

24 Jun '08

http://at.or.at/hans/pd/objects.html You can read all about the protocol design here: http://www.arduino.cc/playground/Interfacing/Firmata Here are some key changes: - updated to use Firmata 2.0 protocol - Firmata is now an Arduino library - a number of included firmwares to support things like Servos - switched serial speed to 115200 .hc ------------------------------------------------------------------------ ---- 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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read a pixel value
by Ricardo Dueñas Parada 24 Jun '08

24 Jun '08

Hi list, I need to use a bmp file as a score, and I need to read a pixel value from a bmp file. I've been looking for an object that can do that, but I haven't found it yet, do you know a way to do that?, maybe with gem? _Ricardo

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[openpanel]/[savepanel] directory, [cd]
by Rich E 24 Jun '08

24 Jun '08

Hi all, I noticed the nice, new feature in [openpanel] and [savepanel] to specify a directory to open in. This saves much, much time navigating to the right directory. But it seems to only work if you specify the full path or the directly lays in the relative path of where pd was opened from (which is almost never the case on Mac, and hardly ever on other systems). It should open from anything within the relative path of where the patch is. Which brought me to another question; is there any way currently to do a 'cd' or 'pwd' in pd? I tried: [pwd ( | [shell] but this has the same problem of openpanel and savepaned; it gives you the path that pd was opened from. [cd /home/full/path/to/patch ( | [shell] doesn't seem to do anything, and would be a workaround if it did. regards, Rich

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Re: [PD] better tabread4~
by Matt Barber 24 Jun '08

24 Jun '08

==================================================================== Hans-Christoph Steiner <hans(a)eds.org> wrote: >> Yes that'right, hmm I guess I knew that but said it in a woolly way >> >> Amend that to >> >> [tabread~] - "play back at exactly" the original rate >> [tabread4~] - "play back at close to the orginal rate" >> [tabread4c~] - "play back with wider transposition" > >> > > Perhaps these could have more descriptive names, especially if there > was a "tabread", etc. library. Some quick ideas: > > [tabread_tweak~] > [tabread_transpose~] > > .hc > I really hate to be a fart on this one, but I'm sorry to say I don't like this scheme at all. This implies that the tabread classes are only used for sampling. I understand that probably 95% of their use is for sampling, and that for a majority of users the more descriptive names might be helpful in that context, but I really feel bad about it for a number of reasons aside from the "real estate" arguments in other posts: 1) [tabread4~] has several other important applications (e.g. waveshaping), where the "tweak" and "transpose" appendages would have little relevance. 2) I tend to greatly prefer object names which say what the object "does," not what it is "for," especially with rather low-level objects. IMO, the latter labeling tends to constrain one's thinking about the use of an object in a way that the former does not. 3) In pedagogical situations I dislike "black box" objects which hide too much of the implementation. This probably wouldn't be the case with these objects, but it feels like it's leaning too far in that direction. One could argue that those who want to really know what's going on would have to page through the documentation just as much as someone who just wants things to work in the easiest way. I very much understand the need to get things done, however, and I am sensitive to the balance between having a substantial set of ready-to-use tools that you don't have to build, and the set of tools you would want to restrict yourself to if you were trying to learn the fundamentals of DSP and program flow. I think that vanilla Pd's leanness and explicitness make it an ideal teaching tool, but extended might better make Pd a production tool... however I don't think you would introduce descriptive names like this into vanilla, and especially into something as low-level as a table reader. All of that said, I think something like the [sampler~] object proposed in another post would be much in keeping with the "user-friendly" filter objects like [bp~] (as opposed to [rpole~] and [rzero~] which are the real "building block" kinds of filter classes). An object name like [sampler~] would indeed restrict its relevance to sampling, and the automatic interpolation schemes would support this restriction... such a thing might be useful in readsf~ contexts as well. Thanks, Matt

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array save contents problem
by Georg Werner 24 Jun '08

24 Jun '08

Hi, what am i doing wrong? i put a table in a patch. went to the properties dialog of the inner array and activated "save contents" then clicked "ok". changed the data in the array. saved the whole patch. closed it. opened it again - but there is no data in the array :( even the "save contents" is gone ??? cheers g.

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Pd-Extended user prefs locations
by Derek Holzer 24 Jun '08

24 Jun '08

Hi HC or somebody else that knows this offhand, I know this has been a big subject of debate on the list this month, so I'll keep this short and simple: Where are the current user preferences files on each platform for Pd-Extended? I have only OS X in front of me now, so I see ~/Library/Preferences/org.puredata.pd.plist works for that. What about Linux and Windows? Will these stay current or are they likely to change sometime soon? I'm asking so I know what to write for the Pd FLOSS Manual. best, D. -- derek holzer ::: http://www.umatic.nl ::: http://blog.myspace.com/macumbista ---Oblique Strategy # 154: "The most easily forgotten thing is the most important"

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Re: [PD] PD with Eucon Ethernet Protocol?
by simon kilshaw 24 Jun '08

24 Jun '08

Hey, I'm looking to buy the euphonix controllers. (http://www.euphonix.com/artist/index.php) No midi implementation on it by the looks of things (its a DAW controller really)- it seems to communicate through the ethernet port. Anyone know if I could access any data from it in PD? All the best- Kilshaw~ Royal Welsh College of Music & Drama Castle Grounds Cathays Park Cardiff CF10 3ER Royal Welsh College of Music & Drama Ltd A subsidiary of the University of Glamorgan Company registration 6013744, registered in England and Wales This e-mail is intended for the above named only, and may contain privileged or confidential information. If you are not the intended recipient, any disclosure, copying, distribution or reliance upon the e-mail is prohibited, and may be unlawful. If you are not the intended recipient, please contact postmaster(a)rwcmd.ac.uk, quoting your name and the name of the sender, then delete the e-mail from your system. Please note that neither RWCMD nor the sender accepts any liability for viruses and it is your responsibility to scan any attachments included with this e-mail. Coleg Brenhinol Cerdd a Drama Cymru Maes y Castell Parc Cathays Caerdydd CF10 3ER Coleg Brenhinol Cerdd a Drama Cymru Cyf Is-gwmni Prifysgol Morgannwg Cofrestriad cwmni 6013744, a gofrestrwyd yn Lloegr a Chymru Dim ond at ddefnydd yr unigolyn a enwir uchod y bwriedir yr e-bost hwn, a gall gynnwys gwybodaeth gyfrinachol. Os nad chi yw'r derbynnydd a fwriadwyd, gwaherddir i chi ledaenu, copio neu ddosbarthu'r e-bost, a gall hynny fod yn anghyfreithlon. Os nad chi yw'r derbynnydd a fwriadwyd, cysylltwch a postfeistr(a)cbcdc.ac.uk gan nodi eich enw ac enw'r anfonydd, ac yna dileu'r neges o'ch cyfrifiadur. Dylech nodi nad yw CBCDC na'r anfonydd yn derbyn unrhyw gyfrifoldeb am unrhyw firysau, ac eich cyfrifoldeb chi yw sganio unrhyw atodiadau sydd ynghlwm wrth yr e-bost hwn.

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[PD-announce] Proof Me! PD FLOSS Manual
by Derek Holzer 24 Jun '08

24 Jun '08

Dear Pure Dataheads, following the PD FLOSS Booksprint in Croatia last month, the 0.1 version of the Pure Data FLOSS Manual is now online! http://flossmanuals.net/puredata The Pure Data FLOSS Manual is conceived as a beginner's approach to Pure Data which, unlike most of the existing documentation, doesn't assume that the user has a degree in mathematics or computer science before they get started! Currently, information on installing and configuring PD, the interface, dataflow tutorials and audio tutorials are included. The FLOSS Manuals philosophy is that chapters from the different available FLOSS Manuals can be "remixed" to create new manuals (for course readers & curriculums, classroom manuals, etc etc). Everything is published under the GNU General Public License. Adam Hyde, Luka Prinčič and myself busted some serious ass to get this up, and now we're ready to take on our toughest customers: YOU. We'd really appreciate it if members of this list could read through the chapters, keeping the following points in mind: 1) Is the text clear and consistent? 2) If technical jargon is used, is it defined inline or included in the Glossary in the back? 3) Are the tutorials complete, or are some steps or information missing? 4) Grammar/spelling, of course 5) Could each chapter exist as a self-standing tutorial outside the context of the PD Manual (i.e. could it be "remixed" with chapters from other FLOSS Manuals without losing anything)? Those not so familiar with Pure Data are encouraged to go through the different tutorials and give feedback as to whether they need more (or less!) information, and whether different parts are redundant or need to be split off from the chapters they are in. Experienced PD users are also welcome, of course! Also, we are still seeking help getting graphics and screenshots for several sections. And there is a HUGE to-do list if you want to get more seriously involved in the project! Thanks and best wishes! Derek ----TO DO BY CHAPTER LIST---- # Pure Data # Introduction ---cover image, important! # WhatIsGraphicalProgramming ----icons/graphics to go with concepts in text ----icons of modular synth with patch cables or similar analog "patching" ----flowchart of inputs and outputs between PD and audio, MIDI, network, video, Arduino/motors, etc ----chart describing relationship of PD to Externals # WhatIsDigitalAudio ----icons/graphics to go with concepts in text ----icon of speaker cone movement ----icon of microphone to voltage to soundcard ----icon of soundcard to voltage to speaker movement ----icon of clipping audio ----icon/graph illustrating Nyquist foldover # Installing # Linux (source) # Windows # InstallingOSX ---Updated Extended installation instruction ---Screenshots of installation # ConfiguringPD ---Screenshots of config menus from all three operating systems (slightly different locations on OSX, Windows, Linux) ---Better introduction to Path, Startup and how to configure Externals with Extended # TroubleShooting ---"I don't hear any sound!" Screenshot "compute audio" button + audio settings in PD, Maybe also audio control panels from different OSes? ---"The test tone sounds distorted!" Add screencap of testtone.pd patch ---"I'm not seeing any audio input!"audio settings in PD, with inputs and outputs highlighted ---"I don't see any MIDI input!" Screencaps: audio/midi prefernces with midi highlighted, OSX: Audio MIDI Setup.app, Linux: QJackctl, Windows: MIDI Ox/MIDI Yoke Junction ---"I get the message "... couldn't create" when I open a patch and there's a dashed line around my object!" Screencap: patch with uncreated objects (missing path/external problem) # Getting Started # StartingPD ---"Starting PD with the Clickable Icon": OSX, Linux screencaps # TheInterface ---Screenshots of different menus from all three OSes # AudioTutorials ---"Introduction": block diagram of synthesizer architecture, as desribed in text ---Formatting: messages like "bang" inside quotes (no Caps, as I have done with "Bang" in some places and need to change...) # AudioStreaming # DataflowTutorials ---give titles to screenshots so that readers can tell which patches match which images (some do this, some don't...) ---"Math": examples/discussion of [expr]??? ---"Order of connecting and [trigger]": explain the patches in-line, rather than only in comments in screenshots (so that text is searchable, copy/pasteable..) ---Screencaps are very aliased, to the point where you can't read the ~ in the object names. Should they be redone at new resolution or with antialiasing? # Appendices # PureGlossary ---format of object names = [italics in square brackets], must be formatted correctly ---format of glossary words in general text: we don't have one yet. Bold on first use in chapter maybe? Needs formatting all through text. # ListofObjects ---incomplete, please add more libs ---maybe more discussion of externals needed as well ---formatting of object names? # PureLinks ---always welcome # Credits ----MORE CHAPTERS/SECTIONS TO DO----- * Configuring "Path" and "Startup" + adding Externals VERY IMPORTANT! * MIDI tutorial (keyboards, sliders, etc, input + output to/from devices or other programs) * HID sensor tutorial * Patching strategies (advanced usage and examples of GoP, Abstractions mostly) * Audiofile manipulation (tables + Extended objects) * Realtime effects tutorial (delays, filters, etc) * GEM VJ tutorial (pix_film, pix_movie) * Networked data (OSC, netsend/netreceive) -- derek holzer ::: http://www.umatic.nl ::: http://blog.myspace.com/macumbista ---Oblique Strategy # 36: "Consult other sources -promising -unpromising" _______________________________________________ PD-announce mailing list PD-announce(a)iem.at http://lists.puredata.info/listinfo/pd-announce

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GEM pix_buffer question
by rainer _ 24 Jun '08

24 Jun '08

Hi, just have rebuilt one of my patches to fetch single videoframes not from harddisc but from RAM with the pix_buffer objects. It works great, about 20 times faster - the problem is I can`t load more than 960 frames of Quicktime DV PAL in RAM and the 2 GB of RAM are full.... this is strange because the hole file of about 4 min. has about 500 MB. Any idea why? GEM Vers. 0.90 on WinXP thanks, Rainer _________________________________________________________________ Connect to the next generation of MSN Messenger http://imagine-msn.com/messenger/launch80/default.aspx?locale=en-us&source=…

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Pd-list June 2008