Pd-dev July 2013

pd-dev@lists.iem.at

18 participants
19 discussions

Rewriting a unified phasor / metro object for reading tables
by Ed Kelly 07 Mar '14

07 Mar '14

Hi Lists(s), I'm rewriting phasor~ and unifying it with metro so that a pulse is generated from the boundaries of each ramp - so that bars of music can be read using tabread~ objects with a sample-accurate metro. I'm sure someone will say this can already be done, but it has to be dropped into the Ninja Jamm patch, so there isn't really time to rewrite the rest of the patch. I don't fully understand the way phasor~ wraps, but I have the object firing out bar numbers correctly. I'm putting clocks in for 16ths and 24ths of the beat, initiated on each wrap. I need to minimise CPU, so what I want to know is this: Does phasor~ always start from 0 and go to 1, i.e. is there always a signal value of 0 at the start of the ramp and a signal value of 1 at the end? As I write this, my common sense tells me it should be "yes" but I want to make sure. I suppose I should just try it really... Cheers, Ed Ninja Jamm - a revolutionary new musix remix app from Ninja Tune and Seeper, for iPhone and iPad http://www.ninjajamm.com/ Gemnotes-0.2: Live music notation for Pure Data, now with dynamics! http://sharktracks.co.uk/

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Can't ping macosx105-i386.pdlab.puredata.info
by Antoine Villeret 03 Oct '13

03 Oct '13

hi all, I can't access anymore to macosx105-i386.pdlab.puredata.info (at least since yesterday) is it still alive ? thx antoine -- do it yourself http://antoine.villeret.free.fr

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portaudio callback problem [WAS:Re: [PD] PA_Terminate]
by Colet Patrice 12 Aug '13

12 Aug '13

Le 27/07/2013 00:39, Colet Patrice a écrit : > Hello, > > I'm trying to find out why portaudio doesn't work with my windows > machine. > > pd doesn't stuck anymore if I put Pa_Terminate() at the end of > function "static void pa_init(void)" in s_audio_pa.c > > I don't understand why Pa_Terminate() is not used anymore, it's under > comments in function int pa_open_audio() > > because by reading > http://portaudio.com/docs/v19-doxydocs/initializing_portaudio.html, I > see that this function must be used. It doesn't matter anymore because I've partly resolved the problem, and it partly comes from portaudio... If pa_process.c has been modified like explained in following link: http://music.columbia.edu/pipermail/portaudio/2012-December/014649.html audioindev audiooutdev can be forced before declaring asio like this: pd -audioindev 13 -audiooutdev 12 -asio Then It's possible to know which device to use with this command: pd -audioindev 0 -audiooutdev 0 -asio -listdev I hope someone can rewrite PaError pa_open_callback(...) in s_audio_pa.c because all those problems mainly comes from this function, and asio will certainly work better for everyone. My guess would be about making sure that p_instreamparams and p_outstreamparams aren't NULL before starting pa_stream. cheers, PatCo

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Midi overflow, when receiving Song Position Pointer (os x)
by Jan Baumgart 06 Aug '13

06 Aug '13

Hi there, I'm experiencing a severe bug, when sending a Song Position Pointer message (0x242 0 0) to pd. After sending just one SPP message to pd, the status window says: "warning: MIDI timing FIFO overflowed". When looking at the output of [midiin] I see "242 0 0 0" repeated endlessly. The Song Position Pointer message belongs to the System Common Messages and has two data bytes. Pd seems to get confused with this message. Where is the third data byte coming from? I'm running precompiled vanilla pd-0.44-3 from puckette's site on 32-bit intel mac (os x 10.6.8). I have a related second question: Is there any way to receive midi realtime messages with pd on os x? I'm trying to receive Midi Beat Clock... cheers, Jan

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[pure-data:bugs] #1098 numberbox can be set to values outside its bounds
by max 31 Jul '13

31 Jul '13

--- ** [bugs:#1098] numberbox can be set to values outside its bounds** **Status:** open **Created:** Wed Jul 31, 2013 01:03 AM UTC by max **Last Updated:** Wed Jul 31, 2013 01:03 AM UTC **Owner:** nobody The vanilla numberbox can be set manually to values outside its (in the preferences) defined bounds. This way an unsafe value can be entered. The [nbx] object doesn't have that bug. --- Sent from sourceforge.net because pd-dev(a)lists.iem.at is subscribed to https://sourceforge.net/p/pure-data/bugs/ To unsubscribe from further messages, a project admin can change settings at https://sourceforge.net/p/pure-data/admin/bugs/options. Or, if this is a mailing list, you can unsubscribe from the mailing list.

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midi api question
by Jonathan Wilkes 26 Jul '13

26 Jul '13

Can someone do this with pd 0.44: 1) hack dialog_midi.tcl: a: in the pdtk_[whatever] proc add this: pdtk_post "Midi outdev1 is $outdev1\n" b: in the pdtk_*alsa* proc add this: pdtk_post "Alsa Midi outdev1 is $outdev1\n" 2) Go to "Media" (or wherever it is) bring up the non-alsa Midi dialog, do some settings and click "Apply" 3) Go to "Media" (or wherever it is) bring up the alsa Midi dialog, do some settings and click "Apply" 4) Go to "Media" (or wherever it is) bring up the non-alsa Midi dialog, do some settings and click "Apply" In the console, outdev1 should get a sane dev number, like a single digit number. If this isn't the case, please post the output. I'm getting crazy outdev number at step 4. -Jonathan

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how to create second inlet that accepts both floats and symbols
by Ivica Ico Bukvic 18 Jul '13

18 Jul '13

inlet_new apparently redirects elsewhere, so one could potentially do what list_append does (if I am understanding the code correctly), but is there an easier way to do this? -- Ivica Ico Bukvic, D.M.A Composition, Music Technology Director, DISIS Interactive Sound & Intermedia Studio Director, L2Ork Linux Laptop Orchestra Head, ICAT IMPACT Studio Virginia Tech Department of Music Blacksburg, VA 24061-0240 (540) 231-6139 (540) 231-5034 (fax) disis.music.vt.edu l2ork.music.vt.edu ico.bukvic.net

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[pure-data:patches] #513 automake build fixes
by IOhannes m zmölnig 17 Jul '13

17 Jul '13

--- ** [patches:#513] automake build fixes** **Status:** open **Labels:** puredata 0.45 **Created:** Tue Jul 02, 2013 10:37 AM UTC by IOhannes m zmölnig **Last Updated:** Tue Jul 02, 2013 10:37 AM UTC **Owner:** Miller Puckette after the latest updates in the puredata git repository ("0.45.0test"), the automake build-system is broken, since files have been removed from the source-tree. the attached patchset fixes this (so Pd can be build with automake again), and it also adds new files (mostly help-patches) to its "install" and "dist" targets. (hmm, seems i cannot attach multiple files at once, so i created a tgz; there are 3 patches in there: 0001 fixes the broken build system (and adds the new help-patches), 0002 and 0003 make sure that the *other* buildsystem is included in the tarballs created by "make dist") --- Sent from sourceforge.net because pd-dev(a)lists.iem.at is subscribed to https://sourceforge.net/p/pure-data/patches/ To unsubscribe from further messages, a project admin can change settings at https://sourceforge.net/p/pure-data/admin/patches/options. Or, if this is a mailing list, you can unsubscribe from the mailing list.

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Re: [PD-dev] libPd hanging audio and other questions
by Ed Kelly 11 Jul '13

11 Jul '13

Hi Dan, Thanks for your help. I know they're holding off the rewrite in OF 7 due to time and budgetary constraints, but we think there was another reason why it kept hanging. A, external I wrote in C gives out sample accurate events (rather that block-aligned ones) as well as a signal. The outlet_float statements were embedded within the DSP loop. You can get away with this in Pd running on a computer, but it doesn't work on an iPhone. This may be bad programming (I'm not sure - I taught myself) but it does cause Pd to crash when DSP is turned off in ofxPd on iOS. The DSP never got turned off and a chunk of audio was left looping, regardless of what the DSP chain was supposed to be doing, both in the simulator and on the device. Anyhow, I re-coded the external using a Pd clock to block-align the events and the problem went away. And I have finally learned to use clocks in Pd external coding! Ah, what fun I'm going to have ,-) Does anyone know what the standard blocksize for writing RT audio from memory to the SD card in an iPhone is? That's another problem we're facing. Drop-outs happen when recording, and we think it might be because we need to deal with the audio in certain size chunks, but we're not sure what that size might be. And do they have to synchronize with Pd's block size (i.e. 64 samples) in order for this to work? Cheers, Ed Ninja Jamm - a revolutionary new music remix app from Ninja Tune and Seeper, for iPhone and iPad http://www.ninjajamm.com/ Gemnotes-0.2: Live music notation for Pure Data, now with dynamics! http://sharktracks.co.uk/ >________________________________ > From: Dan Wilcox <danomatika(a)gmail.com> >To: Ed Kelly <morph_2016(a)yahoo.co.uk> >Cc: Peter Brinkmann <peter.brinkmann(a)googlemail.com>; PD List <pd-list(a)iem.at>; Andrew Wallen <andy.wallen(a)seeper.com> >Sent: Thursday, 11 July 2013, 17:17 >Subject: Re: libPd hanging audio > > > >You could try the 007 tag: https://github.com/danomatika/ofxPd/releases, everything after that will not work without some src modifications. (It may not be that much). > > >Personally, I would consider updating your version of OF. You'd need to remake the xcode project, but the sound stuff is in a much better shape. > >On Jul 11, 2013, at 12:11 PM, Ed Kelly <morph_2016(a)yahoo.co.uk> wrote: > >Hi Dan, >> >>Thanks for quick response. Even with these compiler flags, we get the same result. On the same page there is this: >> >> >>"RtAudio Hang on Exit in 0062 >>"RtAudio will hang on app exit in OF 0062. The only way to fix this is to make a small edit to the OF 0062 core by "editing lib/openFrameworks/sound/ofSoundStream.cpp and commenting line 143 so close() is not called." >> >>I'm not entirely sure which version we're using, but the ofSoundStream.cpp file is only 140 lines long. >>If we upgrade to the latest ofxPd, will it still work with OF 6.2? >>Cheers, >>Ed >> >>Ninja Jamm - a revolutionary new music remix app from Ninja Tune and Seeper, for iPhone and iPad >>http://www.ninjajamm.com/ >> >> >>Gemnotes-0.2: Live music notation for Pure Data, now with dynamics! >>http://sharktracks.co.uk/ >> >> >>>________________________________ >>> From: Dan Wilcox <danomatika(a)gmail.com> >>>To: Ed Kelly <morph_2016(a)yahoo.co.uk> >>>Cc: Peter Brinkmann <peter.brinkmann(a)googlemail.com>; PD List <pd-list(a)iem.at>; Andrew Wallen <andy.wallen(a)seeper.com> >>>Sent: Thursday, 11 July 2013, 16:52 >>>Subject: Re: libPd hanging audio >>> >>> >>> >>>Howdy guys, >>> >>>See https://github.com/danomatika/ofxPd#for-xcode-1 >>> >>> >>>From my notes, I have: -DHAVE_UNISTD_H -DUSEAPI_DUMMY -DPD -dynamiclib -ldl -lm >>> >>> >>>I also added this to the libpd Github wiki: https://github.com/libpd/libpd/wiki/libpd#build-settings >>> >>> >>> >>>On Jul 11, 2013, at 11:45 AM, Ed Kelly <morph_2016(a)yahoo.co.uk> wrote: >>> >>>Hi Dan, Peter, >>>> >>>>I'm here with our ofxPd-based iPhone app, and we are getting a repeat of a particular problem listed here: >>>>http://createdigitalnoise.com/discussion/150/pdbase-closepatch/p1 >>>> >>>>Namely: >>>> >>>>> when closing a patch I would receive this message: sys_close_audio: unknown API 9 >>>> >>>>and then we get a buzz, like a block of audio is being looped. We can't closePatch from the app code, nor can we turn DSP off from the app code. >>>> >>>>In the forum post mentioned above, Peter Brinkmann said this was due to incorrect compiler flags. Can you tell us what the compiler flags were and what they were changed to? >>>> >>>> >>>>Caveat - we are still using openFrameworks 6.2. >>>> >>>> >>>>Cheers, >>>>Ed Kelly >>>> >>>>Ninja Jamm - a revolutionary new music remix app from Ninja Tune and Seeper, for iPhone and iPad >>>>http://www.ninjajamm.com/ >>>> >>>> >>>>Gemnotes-0.2: Live music notation for >>Pure Data, now with dynamics! >>>>http://sharktracks.co.uk/ >>> >>>-------- >>>Dan Wilcox >>>@danomatika >>>danomatika.com >>>robotcowboy.com >>> >>> >>> >>> >>> >>> >>> >>> > >-------- >Dan Wilcox >@danomatika >danomatika.com >robotcowboy.com > > > > > > > >

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Best practices for dealing with binary data in externals
by Thomas Mayer 10 Jul '13

10 Jul '13

Hello, I am pondering about a feature request for PuREST JSON to being able to download binary data: https://github.com/residuum/PuRestJson/issues/22 Currently, [rest] and [oauth] output the downloaded data as a symbol on its left outlet, and binary data is output as a symbol, as long as there is not any 0 byte in it. But then, the data is not really useful. So I am thinking of several possibilities, and I want to implement the feature in the most idiomatic way possible: 1. Add a pseudo HTTP verb BINARYGET with an additional parameter, that contains the path where the content will be downloaded. After the request has ended, the file will be written, and the right outlet of the object will output the status of the request as with the other HTTP verbs. 2. Use standard GET verb and decide via reported MIME type whether to output the data as symbol or write it to a directory, that has been specified with a [directory( message. 3. Output a pointer to the downloaded data and let another extension deal with the data (is there any?). Decision about what to do can be either by MIME type or a special verb. 4. Add another object for binary requests that implements either method 1 or 3. 5. Something else? Current reasoning: I prefer 1 or 2, as it is similar to other objects that write files like [pix_write] or [sfwrite~]. It can also be extended for sending binary data via HTTP POST or PUT. Adding pseudo HTTP verbs may not be an intuitive way for doing this, so 2 should be preferred. But what if the server responds with the wrong MIME type? And what if the user wants to explicitely download an HTML or JSON file? OK, in that case, just use [textfile], but this will a semicolon. I am a little bit confused about the correct way to implement this, any input is highly appreciated. Thanks, Thomas -- "It seems to me, Golan, that the advance of civilization is nothing but an exercise in the limiting of privacy." (Janov Pelorat in: Isaac Asimov - Foundation's Edge) http://www.residuum.org/

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Pd-dev July 2013