Pd-list August 2008

pd-list@lists.iem.at

101 participants
156 discussions

adapting wiimote_navigation_example patch with osculator
by punchik punchik 09 Aug '08

09 Aug '08

hello im trying to use the wiimote_navigation_example patch but since im on macosx, im trying to use osculator instead of the wiimote object for linux. I can receive my wiimote data in pd with osculator without any problems. But it seems the second outlet of the wiimote object outputs the acceleraion data in a diferent scale than osculator. The acceleration x y z varialbes that i get from osculator goes from 0 to 0.9 and when i use them in the patch instead of the wiimote object everything begins to spin very fast and never stops.... any idea how to fix this?? thanks p.

3 2

problems with pd extended (0.40.3)
by martin brinkmann 08 Aug '08

08 Aug '08

hi! i'm sorry if this has been asked (and answered) before, but i have not found a solution yet. (in the list archive) >~ <~ (and maybe other signal operators from zexy) are not created. is there a workaround? vcf_hp2~ throws an "iem_cot~... couldn't create", but only if not vcf_hp4~ (or some other iem-lib filters, i suppose) have been created before. bis denn! martin

3 3

accessing i variable in repeat object?
by punchik punchik 08 Aug '08

08 Aug '08

is it possible to access to the increment variable in repeat? when i repeat a geo in gem having access to the "i " variable allows me creating diferent 3d patterns.... how can i do something like this with repeat? for (i = 0; i = 10 ; i ++) { if (i%5 ==0 continue; cube translate (i * 2) 0 0; } thanls

5 4

Recording MIDI data with PD as synch master
by Ignacio Viano 08 Aug '08

08 Aug '08

Hello. I'm sending an enormous quantity of note messages through a virtual MIDI port out to some virtual orchestras. All messages are synchronized with a PD metronome that may vary. I want all this into an "as "good" as possible written score". Even this idea may not work at all. Of course, I could do it all manually by recording the raw MIDI messages, printing and transcribing them into score, but it should be easier. Any ideas?

2 1

a full-featured sampleplayer
by Atte André Jensen 08 Aug '08

08 Aug '08

Hi I've build a sample player abstraction, and now I just thought of one more feature it needs, and that makes me think I need to redo it again. So here goes: I need a sample player "motor" that is flexible enough to handle any (most) things I throw at it, at least: * Handles stereo/mono, various sample rates and bit depths transparently. * Allow changing of playback rate during playback * Both lopping and non-looping mode * Optional crossfade looping with configurable crossfade length. First: Is there such a thing outthere already (before I redo it all again)? Second: If not, a thing that I can't figure out is the cross-fade part. I thought about having two phasors, and every SAMPLELENGTH-XFADETIME restarting the idle one, and fading it up in XFADETIME while fading the running one down. Problem is that if the playback rate has changed since last cycle the switch will not be at the end of the running sample. Instead I guess the way to go is to look at the output of phasor~ and from it's output determine when it's time to start the fade, which should occur at (SAMPLELENGTH-XFADETIME)/SAMPLELENGTH. How can I inspect an audiosignal and get bang'ed when it's it reaches some value? I looked at [<~], but it seems to output audio, so I guess I can't use that. Or am I totally off in my approach? Any input appreciated... -- peace, love & harmony Atte http://atte.dk | http://myspace.com/attejensen http://anagrammer.dk | http://modlys.dk

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Primordial Style Guide
by Luke Iannini 08 Aug '08

08 Aug '08

Hi All Okay, I've now organized the discussion so far into the "Primordial Style Guide": http://puredata.info/docs/style-guide/PrimordialStyleGuide which establishes the beginnings of a structure and gives us some nice topics to fill out. Next, I'll start to whittle this down, and, if necessary, start threads for particular topics so the zeitgeist can be distilled. But, while I do that, feel free to comment on the now available "big picture" as it stands. Best Luke

1 0

Idiomatic Pd
by Luke Iannini 08 Aug '08

08 Aug '08

There are some amazing sets of abstractions being released recently, which has served to highlight the many extant styles of patching. I was wondering if there was interest in establishing a set of guidelines for patching in the vein of PEP 8 for Python; I've found that document to be very relaxing as it is a standardized approach to OCD. More seriously, it greatly helps when reading other people's code or collaborating. http://www.python.org/dev/peps/pep-0008/ The only one I have seen so far for Pd covers best practices for layout. I'd want to include that, but also codify naming, arguments, common idioms, and so on. I've begun to collect some of my practices to start things off. I was hoping we could all lazy-vote the document together in this thread and I'll then compile it into a PdPedia/Pd.info document. So, feel free to object to or replace my propositions. Style: * If giving $0 as an argument to an abstraction, it is always first in the argument list [1] * * When possible, pass parent arguments in numeric order, like [child $0 $1 $2 other1 other2] etc. * Sends and Receives are written in camelCase, with "R" appended to complementary receives (e.g. in GUIs, $0mySlider for the send and $0mySliderR for the receive) * When prepending $0 to a symbol, only add a "-" to separate it from another number, like [r $0-1stSend]. Otherwise the symbol should immediately follow, like [r $0mySend]. * When working with stereo, Left and Right pairs are written with Le and Ri appended (to distinguish them from an R denoting "receive", above) Programming recommendations * To invert a toggle, use [== 0] * Use the loadbang of the parent of both abstractions to initialize two or more interdependent abstractions [1] I think of this like emulating the "self" convention in Python And so on... Cheers Luke

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wind - an outdoor installation
by Damian Stewart 07 Aug '08

07 Aug '08

hey, i've just uploaded some documentation for my project 'Wind', which uses Pd and a custom computer vision tool to sonify video footage of the motion of leaves or grass blowing in the wind. check it out at http://www.frey.co.nz/projects/wind/ and do let me know what you think ;-) thanks d -- damian stewart | +31 6 8178 5197 | damian(a)frey.co.nz frey | live art with machines | http://www.frey.co.nz

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Re: [PD] physical modelling/general pd - mentor/tuition sought (money offered)
by Julian Brooks 07 Aug '08

07 Aug '08

Julian and Marius, Many thanks for your advice. I will defo take you up, Julian, on your kind offer. I will be getting in touch soon. Isn't Obi wb gonna be hard to contact, I am quite well in with the sand people tho', maybe they can put in a good word for me:0 Best 2 ALL, jB -----Original Message----- From: marius schebella [mailto:marius.schebella@gmail.com] Sent: 07 August 2008 16:18 To: Julian Brooks Subject: Re: [PD] physical modelling/general pd - mentor/tuition sought (money offered) Hi Julian, you should ask andy farnell, he is in GB and is writing a book about physical modelling. I think that will have most of the stuff you will need. marius. Julian Brooks wrote: > Hi all, > > > > I have a 12 month project as part of a masters degree, where I wish to > build a physical model of a wind chime. I then want to use the > interface to play some of my indeterminate compositions. I was going to > attempt it for my undergraduate degree but realised that it was far too > complex for the available time that I had then. > > > > I have been using pd for a few years now, list lurking, working through > basic examples, building simple tools, using other peoples patches etc. > But this is too complex for me to do on my own. At my uni there isn't > anyone with better skills than me and I don't know of any local fellow > patchers. > > > > Now as a musician, when I need to up my skills, I will look to find some > lessons when I have got as far as I can on my own. > > > > So here goes... > > > > Is there anyone with an hour a week to spare who can offer some > mentoring/tuition for what we can deem to be the 'going rate'. I am > more than happy to do this remotely/online, I'm sure there is a way we > can work it out. There would be full credit given of course. > > > > Pmpd seems like the way to go with this. I have worked through the > examples, and, although I have my eye on what examples I would presume > to be the best starting points, I'm struggling to get started. The > physical modelling is where I first need to start but there's loads of > pd stuff I would like to be able to work through with someone, so this > could be a (me love you)longtime regular small money earner, if anyone's > interested. > > > > I am in Hebden Bridge, West Yorkshire, UK, by the way. Any pd'ers > local, give us a shout. > > > > Best wishes to all, > > > > Jb > > > ------------------------------------------------------------------------ > > _______________________________________________ > Pd-list(a)iem.at mailing list > UNSUBSCRIBE and account-management -> http://lists.puredata.info/listinfo/pd-list

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Re: [PD] [PD-announce] [Gridflow-dev] GridFlow 0.9.4
by Michal Seta 07 Aug '08

07 Aug '08

Hi, sudo apt-get install libquicktime-dev works for me (but I am on Ubuntu 7.10, perhaps something has changed in 8.04) ./MiS On Thu, Aug 7, 2008 at 5:30 AM, olsen wolf <sesselastronaut(a)googlemail.com> wrote: > Hi > i'm trying to install gridflow 0.9.4 on a fresh ubuntustudio(8.04) box > - offering me an obstacle by gettin the quicktime aka quicktime.h to > be found. libquicktimehv-dev + dependencies installed from > http://akirad.cinelerra.org as mentioned on cinelerra > http://cvs.cinelerra.org/getting_cinelerra.php > i added _______________________________________________ Pd-announce mailing list Pd-announce(a)iem.at http://lists.puredata.info/listinfo/pd-announce

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Pd-list August 2008