Pd-list November 2014

pd-list@lists.iem.at

64 participants
66 discussions

Re: [PD] data structures......+ newbie q's + edit
by jamal crawford 13 Nov '14

13 Nov '14

hey list, Jonathan little edit. something got scrubbed > As far as data structures, my changes hopefully make them easier to > use. You can create scalars in object boxes. You can update their > appearance by sending messages to [draw]. might be gold to see this in action in a patch. where/how do you find the "changes"? apologies for the editness

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Re: [PD] data structures......+ newbie q's
by jamal crawford 12 Nov '14

12 Nov '14

hey list, Jonathan > Sure... what do people use in Debian/Ubuntu to do screencast + audio?' ffcast ?? https://github.com/lolilolicon/FFcast > It's fun to create a bunch of voicebank canvases on the fly with > [setsize] might sound insane? :) > Well, Miller has recently added the "text" field to [struct], like a symbol? or an array? so you "just" put "text" in the template? sorry im lost. are there other "fields"? > As far as data structures, my changes hopefully make them > easier to use. You can create scalars in object boxes. You can update their appearance by sending messages to [draw]. might be gold to see this in action in a patch. where/how do you find the "changes"? apologies for the newbieness best .jc > Sure... what do people use in Debian/Ubuntu to do screencast + audio? > > It's fun to create a bunch of voicebank canvases on the fly with > [setsize], but it's even better to kill them simply by decreasing the > array size. > > Might be fun to build up an array of midi bots by having [setsize] > react to the load meter, then have it automatically kill some of them > if the load gets too high... > > -Jonathan

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Re: [PD] Looking for research in amplitude envelopes of music instruments during performance.
by Jeff Sandys 12 Nov '14

12 Nov '14

From: Rich Eakin <rtepub(a)gmail.com> > ... > Is anyone aware of studies, articles, or other research that has been > conducted around the amplitude envelopes of real world music instruments > (strings, brass, voice, etc) during performance? What I mean is, I've seen > a few articles here and there that explain how the envelopes differ between > musical instruments (such as figure 5 of this article > <http://interscience.in/IJCSI_Vol2Iss1/IJCSI_Paper_4.pdf>), but the source > analysis samples are too simple for musical usefulness, usually a single > note recorded with basic dynamics. What I'd like to find is more how the > ADSR curves look for actual musical phrases. > ... > cheers, > Rich Welsh's Synthesizer Cookbook is a great resource. The author "reverse engineered" common instrumental sounds to make recipes for dual oscillator synths with waveforms, noise, modulation, filters and ADSR envelopes for both the amplitude and the filter. The CDROM with the book includes a VSTi synth to recreate the recipes. Volume 2 has harmonic spectrum of the instruments similar to the diagrams in Fig 2 of the paper you reference. The CCRMA site https://ccrma.stanford.edu/software/snd/snd/sndscm.html is an awesome reference, anders, thanks for sharing, -- Jeff

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gemglxwindow or gemwin
by mick mengucci 12 Nov '14

12 Nov '14

Hi I installed and compiled Pd vanilla and some externals including GEM. I have problems with the [gemwin] object as it does not receive |reset( nor |clear( messages which I used in older patches that I use to run in Pd-extended. Why is that? And what is the [gemglxwindow] object? what is the difference between it and [gemwin]? I run Xubuntu Ubuntu 14.04.1 LTS Release: 14.04 Codename: trusty I hope I have been clear enough. Any feedback is appreciated. Mick -- mickmengucci.bandcamp.com facebook.com/Labio.pt <http://WWW.MISTURAPURA.NET>MISTURAPURA.NET <http://WWW.MISTURAPURA.NET> pure mixture vibration since 1995

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libdir path
by Jonathan Wilkes 12 Nov '14

12 Nov '14

Hi list, Should "libdir" as a path have any meaning to the Pd user or patch author? I see it in the source code. On GNU/Linux it looks like it points to /usr/lib/pd-- essentially the place for the subdirs doc, extra, etc. I ask because I just added a "libdir" method to [pdinfo] in Pd-l2ork. It's useful, but maybe there's a better name for that method since it conflicts with the name for a self-contained external library that adheres to Hans' standard format. -Jonathan

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Re: [PD] How to add/remove MIDI notes from a list using MIDI in and note on/off?
by patrice colet 12 Nov '14

12 Nov '14

I don't understand why not doing this: [notein] | | [poly] It seems to be the same thing. from [poly] help file: "The [poly] object takes a stream of pitch/velocity pairs and outputs triples containing voice number, pitch and velocity. You can pack the output and use the route object to route messages among a bank of voices depending on the first outlet. [poly] can be configured to do voice stealing or not (the default.)" Le 12/11/2014 00:13, JC Pedroza a écrit : > Right now I'm handling MIDI note on/off like this:<br><br><div id="inlineImage0" style="display: inline-block"><script type="jsv#1086_"></script> <span contenteditable="true"> </span> <div style="display: inline-block" unselectable="on" contenteditable="false" class="inlineImage" initheight="257" initwidth="377"><img src="cid:inlineImage0" height="257" width="377"></div> <span contenteditable="true"> </span><script type="jsv/1086_"></script></div><br>(also including this file as attachment)<div><br></div><div>The idea for now is that left outlet (note on) adds the MIDI note to the list, and right outlet (note off) deletes that note from the list. <span style="font-size: 12pt;">That's where I'm stuck at the moment. </span><span style="font-size: 12pt;"> Can [poly] help me implement that logic? </span></div><div><br></div><div>I'm using [list-extend] to add the notes to a list, but I can't figure out how to remove the note from the list once the key is released (note off). I think I need to use a combination of [list-find] and [list-delete], but I can't make make it work.</div><div><br></div><div><br></div><div>----------------------------------------<br>> Date: Tue, 11 Nov 2014 23:23:22 +0100<br>> From: colet.patrice(a)free.fr<br>> To: pd-list(a)lists.iem.at<br>> Subject: Re: [PD] How to add/remove MIDI notes from a list using MIDI in and note on/off?<br>><br>> hi,<br>> what about using [poly] instead?<br>><br>><br>> Le 11/11/2014 13:53, JC Pedroza a écrit :<br>> > I need to populate a list with the MIDI notes that are being pressed, and remove the note from the list when the key is released.<br>> ><br>> > One idea is to use [notein], and if the velocity is> 0 then add the note to the list, and if the velocity == 0 then remove the note from the list. But I have no idea of how to implement this.<br>> ><br>> > I think I need [list-extend], [list-find], and [list-delete], but I just can't figure out an implementation.<br>> ><br>> > How can I do this?<br>> > _______________________________________________<br>> > Pd-list(a)lists.iem.at mailing list<br>> > UNSUBSCRIBE and account-management -> http://lists.puredata.info/listinfo/pd-list<br>><br>><br>> _______________________________________________<br>> Pd-list(a)lists.iem.at mailing list<br>> UNSUBSCRIBE and account-management -> http://lists.puredata.info/listinfo/pd-list<br></div>

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Re: [PD] Pd-list Digest, Vol 116, Issue 16
by Dan Wilcox 11 Nov '14

11 Nov '14

I have this with my s_minimoog to emulate how the minimoog keyboard allows lowest notes to be played and automatically changes the frequency to the next highest note when the lowest is let go. Here’s the keytracking part, you’ll need rjlib and rc-patches for the list abstraction parts (or list-abs where some of them come from). The basic idea is to keep a running count of the number of keys held down to know when you get a first attack and final release. The second part is to choose the lowest note and I use list unique, list sort, & list map to keep a sorted list of unique notes that I can add and remove from. -------- Dan Wilcox @danomatika danomatika.com <http://danomatika.com/> robotcowboy.com <http://robotcowboy.com/> > On Nov 11, 2014, at 12:28 PM, pd-list-request(a)lists.iem.at wrote: > > From: JC Pedroza <nemesis4go10(a)hotmail.com <mailto:nemesis4go10@hotmail.com>> > To: "pd-list(a)lists.iem.at <mailto:pd-list@lists.iem.at>" <pd-list(a)lists.iem.at <mailto:pd-list@lists.iem.at>> > Date: November 11, 2014 at 7:53:36 AM EST > Subject: [PD] How to add/remove MIDI notes from a list using MIDI in and note on/off? > > > I need to populate a list with the MIDI notes that are being pressed, and remove the note from the list when the key is released. > > One idea is to use [notein], and if the velocity is> 0 then add the note to the list, and if the velocity == 0 then remove the note from the list. But I have no idea of how to implement this. > > I think I need [list-extend], [list-find], and [list-delete], but I just can't figure out an implementation. > > How can I do this?

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data structure setsize allocation
by Jonathan Wilkes 11 Nov '14

11 Nov '14

Hi Miller, I think there may be a memory leak regarding [setsize] and your new text field. The user is initializing and potentially populating many t_binbufs through word_init after they enlarge an array with [setsize]. But if they set a smaller size with [setsize] it doesn't look like you are freeing those t_binbufs. I noticed this while reworking your old DT_LIST field to create canvases as data fields. I do [struct test canvas foo bar], which reads an abstraction name bar.pd (if it exists) into a binbuf associated with the corresponding struct. Then when I create a scalar, it evaluates that t_binbuf which creates a hidden toplevel "bar.pd" canvas. The fun comes when using the "canvas foo bar" field in a template for an array field-- then I can use [setsize] to create a massive number of abstractions at once. But when I decrease the array size my abstractions linger until I "vis" them and close them. So I'm guessing it's the same problem with DT_TEXT, no? -Jonathan

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Yellotron : a mellotron in Pd
by Pierre Massat 11 Nov '14

11 Nov '14

Dear list, I wanted to shared with you a simple implementation of the mellotron in Pure Data, which I made using free mellontron samples I found online. Everything is explained and available for download in a blog post I just published : http://guitarextended.wordpress.com/2014/11/11/yellotron-a-mellotron-with-p… And as a bonus here's a song I made using the yellotron (cello and choir) : https://pi-r.bandcamp.com/track/sur-les-deux-h-misph-res Cheers, Pierre.

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Re: [PD] Dynamic selection of dac~ channel
by Alessio Degani 11 Nov '14

11 Nov '14

On 10/11/2014 19:12, patrice colet wrote: > hi > > Le 10/11/2014 18:36, Alessio Degani a écrit : >> [CUT] >> I've temporarily resolved this using throw~, since the throw object >> accept the message [set bus_name(, but in this way, I'm forced to >> create the correspondant [catch~ bus_name] and link them to a given >> [dac~ channel_num]. >> And I don't want this! :) >> > > why don't you want this? Mainly beacuse of design purposes. The abstraction needs "to be the DAC" itself. Furthermore, it is designed to work out-of-the-box. With my workaround, the user must create all of the catch~ objects and link them to a specified dac~ channel. Otherwise, I can create another abstraction that contains all catch~ and dac~ and "force" the user to put that abstraction in its own projects, but is not my goal! >> Basically, I need a procedure to set the dac~ channel during the init >> of an abstraction to $1 if passed or to default_channe il $1 is not >> passed. >> > > there is a way with dynamic patching, dac~ could be created at > abstraction init with default arg, if you don't know how to do this > I've attached an example Thank you Patrice! The attached patch do exactly what I want! It's a little bit tricky to understand what exactly the patch does but it simply works. Are there some drawbacks when using this approach to dynamic dac~ channel allocation? (i.e. unhandled exceptions, memory allocation, overhead, ...) Bests -- a.

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Pd-list November 2014