Pd-list March 2015

pd-list@lists.iem.at

68 participants
80 discussions

gop drawing
by Jonathan Wilkes 26 Mar '15

26 Mar '15

Hi list, I'm implementing graph-on-parent drawing in my port of the Pd-l2ork GUI to HTML5. What I've come across is that both glist_delete and graph_vis will send a message to the GUI to erase the objects shown in the GOP window. So when you select a gop subpatch and click <BackSpace>, Pd sends two "delete" messages to the GUI for each object shown in the GOP window. Is there an easy way to change this so that only one "delete" message gets sent to the GUI per object? It's easy enough to ignore the extra messages. But it's _way_ easier to maintain and debug when you don't have to track down and analyze two sources of GUI deletions, especially when the dataflow is obscured by function callbacks in C. -Jonathan

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subtle redrawing bug
by Jonathan Wilkes 26 Mar '15

26 Mar '15

From canvas_setgraph in g_canvas.c (with my own comments added): if (glist_isvisible(x) && x->gl_goprect) glist_redraw(x); // This ends with a redraw of the GOP window itself on the parent if (x->gl_owner && !x->gl_loading && glist_isvisible(x->gl_owner)) { gobj_vis(&x->gl_gobj, x->gl_owner, 1); // This draws the GOP window for a second time if the above conditional is met canvas_fixlinesfor(x->gl_owner, &x->gl_obj); } It's a rather innocuous bug since Pd-Vanilla erases the entire graph the moment you draw or update it. But because tk gives you no tools to inspect the data drawn on a tk canvas, it's extremely difficult to track down bugs like these. (I found it with chromium-devtools, which visually highlights graphical elements when you browse them in the html.) -Jonathan

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Re: [PD] Parse/split symbol by delimiters like - or _ ?
by JF 25 Mar '15

25 Mar '15

Made an abstraction that will split a symbol by a delimiter using the new [list tosymbol] [list fromsymbol] methods (attached). (So this is for the newer vanilla versions ~0.46) Uses [List_buffer] abstraction which is a cold-inlet growable list w/ bang to output and clear. This I created to suit the purpose I couldn't find anything similar in the list-abs. Thanks all, John. > On Sunday, 1 March 2015, 20:21, JF <saintidle(a)yahoo.com> wrote: > >T hanks Iohannes & Tim, > > > I would be interested in how to achieve this with [text]? > > I've been playing with text for the first time today, I thought that the > 'fields' were only whitespace separated. > > > if I had... > [text define longsymbols] > > > [symbol aaaa_bbbb ( > | > [text set longsymbols] > > ...how would I then retrieve the 'aaaa' and 'bbbb' separately? > > (Otherwise I will just use l2s/list2symbol) > > Thanks! John > > > > On Sunday, 1 March 2015, 19:21, tim vets <timvets(a)gmail.com> wrote: > > >> >> >> sorry, in that example, the last [unpack s s] should probably be [unpack f > s] >> >> >> >> 2015-03-01 20:17 GMT+01:00 tim vets <timvets(a)gmail.com>: >> >> maybe using s2l ? >>> something (roughly) like: >>> >>> [symbol drums_1.wav( >>> | [symbol _( >>> >>> | | >>> [s2l] >>> >>> [unpack s s] >>> >>> | >>> | [symbol .( >>> | | >>> [s2l] >>> [unpack s s] >>> >>> [f ] >>> | >>> [1\ >>> >>> gr, >>> >>> Tim >>> >>> >>> >>> >>> 2015-03-01 20:03 GMT+01:00 JF via Pd-list <pd-list(a)lists.iem.at>: >>> >>> Is it possible to split a formatted symbol such as... >>>> drums_1.wav >>>> >>>> ...to extract the float '1' and use that to assign a > meaningful attribute? >>>> >>>> >>>> For example a float could represent a loop playback switch. >>>> >>>> if I have 'drums_0.wav' I would like to extract the float, > find that it >>>> is '0' and then I would know that this WAV file is say, not > to be looped. >>>> Or if I had 'drums_1.wav' I would be able to parse the > filename, find the '1' >>>> which I now know to loop the WAV file. >>>> >>>> >>>> Thanks in advance! John >>>> >>>> _______________________________________________ >>>> Pd-list(a)lists.iem.at mailing list >>>> UNSUBSCRIBE and account-management -> > http://lists.puredata.info/listinfo/pd-list >>>> >>>> >>> >> >> >> >

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creation of pd voxdetect object
by David Rivoire 25 Mar '15

25 Mar '15

http://cargocollective.com/max-pd-tutorial/pitch-detection Hello ! I don't manage to create a pd voxdetect object in this patch context, can you help me ? Thanks ! David Rivoire (trombonist player)

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mrpeach midifile
by D G 25 Mar '15

25 Mar '15

Hello Dear List I have been trying to load some midi files into the mrpeach midifile object and i am getting this kind of messages when it fails to load some of the midi files: other_meta: marker Marker ## other_meta: smpte 33 0 0 0 0 24 Is there a way to avoid these errors and load properly the files? Some are loaded correctly and others not. Do you know how to improve this? Thanks for your help Daniel

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pd path and hidden unix directories
by Peter P. 22 Mar '15

22 Mar '15

I just discovered that pd does not add the startup directory to its search path when that directory is a hidden directory (as in .somedir). In this case one has to explicitely set -path . best, P

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Re: [PD] For sample players based on [line~], [vline~], or, [phasor~], how can we be sure all samples are being played?
by Gilberto Agostinho 21 Mar '15

21 Mar '15

Hi Claude, On 21/03/15 12:00, pd-list-request(a)lists.iem.at wrote: >> Hi Claude, >> > >> >On 20/03/15 18:24,pd-list-request@lists.iem.at wrote: >>> >>you can hear aliasing quite easily - you turn up the pitch dial on your >>> >>oscillator and hear some other frequencies sweep downwards (and out of >>> >>tune) >> > >> >Could you explain this better? If I create a glissando effect using >> >[line~] and [osc~], I don't hear any of the aliasing you mention, only >> >the expected result of a pitch going up. In which situations would these >> >aliasing effects appear? > you don't hear it with a single sine osc~ until very high frequencies > (half the sample rate at best) as it doesn't have many partials > > the higher frequency partials in the table in the attached patch fold > over even when the oscillator fundamental is fairly low But then you are talking about aliasing due to the Nyquist–Shannon sampling theorem, right? I thought the aliasing was due to the presence of [line~] and the glissando, not simply because of the sampling theorem (the glissando simply helps to make the effect obvious, but a single oscillator with high enough frequency would produce the frequency folding, am I right?). in that case, I do understand what you mean. Thanks and take care, Gilberto

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Re: [PD] For sample players based on [line~], [vline~], or, [phasor~], how can we be sure all samples are being played?
by Gilberto Agostinho 20 Mar '15

20 Mar '15

Hi Claude, On 20/03/15 18:24, pd-list-request(a)lists.iem.at wrote: >> > >> >I realize this is totally theoretical, because in all honestly I wouldn't >> >be able to hear a difference if samples are being skipped > you can hear aliasing quite easily - you turn up the pitch dial on your > oscillator and hear some other frequencies sweep downwards (and out of tune) > Could you explain this better? If I create a glissando effect using [line~] and [osc~], I don't hear any of the aliasing you mention, only the expected result of a pitch going up. In which situations would these aliasing effects appear? Cheers, Gilberto

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0.46-5 Not allocating midioutdev correctly? Strange behaviour
by JF 20 Mar '15

20 Mar '15

I can't seem to set midioutdev correctly on 0.46-5 Win 32. When I choose a device, close preferences then re-open preferences the device selected seems to now be the next device in the list. This happens when using multiple device outs too. Then saving the preferences to the registry seems to make the device change again, (but not an device increment of one, maybe 4 or 5). Any help would be greatly appreciated! Thanks in advance, John.

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[PD-announce] Musikdesign bachelor degree course at Trossingen University of Music
by Benjamin Federer (Musikdesign) 20 Mar '15

20 Mar '15

(With apologies for cross posting. Feel free to forward.) The bachelor degree course Musikdesign is now open for applications! About the course Musikdesign is a course of studies by the Trossingen University of Music in cooperation with the Furtwangen University (Faculty for Digital Media). After eight semesters, graduates receive the degree ‘Bachelor of Music’. Centerpiece of the programme comprises a solid education in aural theory, composition and orchestration/arrangement. Consequently, the artistic focus may be considered as being on musical composition. Further contents are audio and video technology, market knowledge, media and project management. About the subject Musikdesign considers working with sound as part of an overall performance, being experienced by the observer both in a multi-sensory and multimedia-based way. In the process of conceptualising and realising this performance, music designers work together with other artists as well as experts for marketing and product acoustics in various sectors such as brand communication, product development, architecture, multimedia installation, motion picture, interactive application and mobile content. Music designers create sound using the elements (composed) music, speech, noise and are able to analyze as well as evaluate their product aesthetically and psychoacoustically. Target audience The Musikdesign course is for creative minds with sound in their blood, craving to be different from mere interpreters: be it graduates, career changers, music whizzs, composers, sound designers, DJs, sound artists, media designers or scenographers. Music designers are working in a broad field ranging from composition, media production, project management, conception, audio supervision and sound design in production environments (audio, video, computer applications and games, advertising), agencies (advertising, web design, event-planning), radio and TV stations as well as music schools. Application deadline for fall 2015 admission is April 15. Applicants are asked to send in their portfolio together with two given assignments. More information can be found at www.musikdesign.net <http://www.musikdesign.net/>. Informal enquiries are encouraged and should be adressed to info(a)musikdesign.net. _______________________________________________ Pd-announce mailing list Pd-announce(a)lists.iem.at http://lists.puredata.info/listinfo/pd-announce

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Pd-list March 2015