Pd-list February 2021

pd-list@lists.iem.at

45 participants
43 discussions

Preset management for Pd Vanilla
by Alexandre Torres Porres 13 Nov '23

13 Nov '23

Never really needed fancy preset management other than storing messages in a basic vanilla way. But I've seen people mention how Pd lacks a nice preset system. Not that I know what a fancy one actually needs since I never felt the demand. So I'm here to ask what people use in Pd Vanilla, be it a pure vanilla solution or an external. And also to ask what people miss. This is what I came up with as a pure vanilla abstraction, it's based on [text] and [savestate]. Here's the thing: https://drive.google.com/file/d/1A0ISEJo5F1E578WHM1doo1n2CJAthonU/view?usp=… In short, the preset abstraction takes messages and stores them. You can have many of these on your patch and use them to recall presets for any parameters. It takes any kind of messages. I'm making use of built-in sends and receives in the number boxes to make the patch cleaner. Just think that you can have separate control of each parameter having its own preset or group all of them together globally, or a group here and another there, whatever... Once you save the patch, the presets you saved get stored in the patch. As for my current idea for my ELSE library, I'm using an object similar to grab to take messages from [receive] objects. It's a development over this original vanilla abstraction. My first draft is this, I hope that sharing the screenshot give you a nice idea. [image: Screen Shot 2021-01-21 at 04.47.42.png] You can check what's up in my repository for more details... https://github.com/porres/pd-else/blob/master/Classes/Abstractions/preset.pd cheers

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soundtouch~ for Pd Vanilla
by Alexandre Torres Porres 31 Oct '23

31 Oct '23

Hi folks, I'm on a vibe of uploading missing libraries and objects for Pd Vanilla on deken. On the list I have FFTease, Lyonpotpourri, CICM-Tools and more stuff that I'm looking into, just so you know... Now, I see there's an old soundtouch~ external here: http://www.katjaas.nl/pitchshift/soundtouch~.html - it's "version 0.9" by Katja Vetter. It was developed with SoundTouch version 1.6 and Pure Data version 0.42. I tested on Pd 0.51-4 32 bits on mac and it works fine. There are binaries for download on the link above, but not for 64 bits. I wonder if anyone wants to help me build these with pd-lib-builder and all. Now, the ceammc librarym (and Pd-ceammc distribution) has a soundtouch~ external too. It's the same name, but not the same external, this one is marked as "version 0.1". So we do already have "a" soundtouch~ for vanilla, but I wanted to also get katja's external up there. So I just uploaded the download from that page here https://github.com/porres/pd-soundtouch - It's just the download as it is and we need to change to hopefully use pd-lib-builder, which would make things easier. I did try that and it didn't work. So, anyone onboard with this? cheers

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MIDI specifications for Multidimensional Polyphonic Expression (MPE) in Pd
by Alexandre Torres Porres 26 Oct '23

26 Oct '23

some new objects for MPE Midi is on Max's new update, just googled it to see what it was http://expressiveness.org/2015/04/24/midi-specifications-for-multidimension… wonder if you guys know anything about this and if anyone would be into bringing this to Pd. cheers

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Image from shader back to Gem
by Csaba Láng 26 Mar '21

26 Mar '21

Dear List, I am using a camera with a fisheye lens for motion detection. The distortion had to be corrected with a shader (method from Matlab) but now I need to rotate the image and crop it with pix_crop plus analyze the frames with pix_movement. How can I get back the image to Gem? In my patch gemframebuffer send the image to the shader but not a clue how I could ise the pix_ objects again. [image: Screenshot 2021-02-14 at 17.27.12.png] This is the corrected image from the camera after shader [image: Grid corrected.jpeg] Let me know please where I miss something. Best, Popesz

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moocow string2any
by marco 24 Mar '21

24 Mar '21

Hello! I am trying to migrate a Pduino Patch from pd-extended to Pd-Vanilla and the only object that is missing is "moocow/string2any". (A weird thing is that on Linux I was able to find moocow in the external search from pd-vanilla, but on Windows I am not.) However, I wanted to ask if there is a possibiliy to substitude the function of "string2any" with a more common PD Operation or something I can still find in the externals. Big thanks! Marco

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pause writing to delay line / hybrid of array and delay
by Max 21 Mar '21

21 Mar '21

Hi list, I'm looking for concepts like a queue or arrayDeque in Pd. Like a delay line which I can pause adding new elements into and it will act like an array until I decide to add more. At audio rate. Is there something simple that I have overlooked? What's the best strategy to implement this? M.

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restrict "find externals" to exact matches
by IOhannes m zmoelnig 18 Mar '21

18 Mar '21

hi all, i would like to change the way the "find externals" search currently works. right now, whenever you enter a simple search term (e.g. "foo"), the search will return all libraries and objects that have the string "foo" somewhere in their name. i think this is wrong, as it makes it extra hard to search for an exact name that happens to also be used as a part of library/object names. the problem is somewhat enlarged, as by default both libraries and objects are searched, and the object-results are kind of opaque (e.g. looking for "lim" will return 10 hits. among them is "bandLIMited", zexy and iemlib. to the user it's a bit mysterious why they get these results (they probably don't know that there's a [limiter~] in zexy, or a [speedlim] in iemlib). i think it would help a lot if a search term like "lim" would only return exact matches. it's probably little known, but you can already use wildcards in your search term. so if you do want to search for any string containg 'lim', you can (already) use "*lim*". you can also use "lim*" (to match any strings that start with 'lim') resp "*lim" (for strings that end with 'lim'). right now, the logic is: if there is no wildcard in the searchstring, the server will automatically add '*' around the term (so 'lim' really becomes '*lim*') i'd like to require the user to add wildcards explicitely. the thing is: the implicit wildcards are added on the server-side. if i change it there, suddenly all searches are going to behave different than how they do now. regardless of the Pd-veresion (or deken-plugin version) you are using. how would you see such a change? would the disruption be acceptable? or not? (in which case i need to find some other solution; however, if the current behaviour is annoying to most people anyhow, i'd rather change it for good) gfmadrs IOhannes

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pduino / comport / raspberry
by Alexandre Torres Porres 01 Mar '21

01 Mar '21

hi, will teach a course on pd+arduino+raspberry in a couple of months I don't see a comport for raspberry on deken, neither pduino and I wanna upload them, where are the sources? do we have actively maintained repositories? thanks cheers

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Re: [PD] pduino / comport / raspberry
by Joseph Larralde 28 Feb '21

28 Feb '21

Hi Alexandre and Roman, Le 28/02/2021 à 20:05, pd-list-request(a)lists.iem.at a écrit : > Date: Sun, 28 Feb 2021 19:46:36 +0100 > From: Roman Haefeli<reduzent(a)gmail.com> > To:pd-list@lists.iem.at > Subject: Re: [PD] pduino / comport / raspberry > Message-ID:<9f55d9bdefe73a9d993790cdd0d5221dc21eabfb.camel(a)gmail.com> > Content-Type: text/plain; charset="utf-8" > > On Sun, 2021-02-28 at 14:13 -0300, Alexandre Torres Porres wrote: >> hi, will teach a course on pd+arduino+raspberry in a couple of months >> >> I don't see a comport for raspberry on deken, > I do see it: > > http://puredata.info/Members/rdz/software/comport/1.1.1/comport-v1.1.1-(Lin… Oh nice, I'm still using comport v0.2 I need to check this new version. Actually I have a project running on a pi zero which is connected to a nano via the rx tx pins. I use the comport external to communicate between the pi and the nano. I wrote an intitialization script for the pi zero that installs all dependencies, downloads and compiles pure data, then download and compiles required dependencies including comport (among other environments like nodejs) The part that downloads and compiles comport is very simple and works well. I goes like this : wget https://sourceforge.net/projects/pure-data/files/libraries/comport/comport-… tar -xvf comport-0.2.tar.gz cd comport-0.2 sudo make install cd .. But there might be simpler ways to achieve this nowadays, I don't know ... Anyway, I hope this might help someone. Cheers, Joseph >> neither pduino > You don't need to compile pduino. It's an abstraction and also appears > in Deken, when searching for it on a Raspberry Pi: > > http://puredata.info/Members/rdz/software/pduino/0.7/pduino%5Bv0.7%5D.dek > > Roman

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Re: [PD] detect dependencies from patch
by Dan Wilcox 28 Feb '21

28 Feb '21

Howdy Phil, We are moving away from the "extra" folder and additional "standard paths" like ~/.pd-externals in favor user search paths for most use cases. This requires specifying folders, so a helper "Documents Directory" was added, mainly for beginners and students but I find it generally useful. For those that don't, it can simply be ignored and disabled. I think the info on this was updated in the included Pd manual by Alex, but off the top of my head the simplest explanation is the following: If not enabled, enable the Pd Documents Directory: Preferences -> Path... -> Pd Documents Directory -> Reset There should now be a ~/Documents/Pd/externals folder which is also added to the user search paths. Put external library folders in there, deken also downloads to here by default. Note: You can of course use your own user search path and set the path deken downloads to, in which case the following info still applies. You can now find externals in this folder using [declare]. If you have an external called "extname" in the following folder: ~/Documents/Pd/externals/extname It should be found by Pd with: [declare -path extname -lib extname] The -path argument specifies search paths while -lib specifies a location to try to load compiled externals, so some externals may require both while abstraction-only externals should only require -path. More complicated externals like Gem which also need to load addition dynamic libs should also work, although may require additional steps / folder placement. Note: once compiled externals are found and loaded, they cannot be unloaded or reloaded. Also, without using [declare], objects can be found in the user search paths via prepending the external's folder name: [extname/foobar] Last, if the path given to declare starts with a . or .. (ie. it's a relative path), the search mechanism only looks *relative* to the patch and does not look in further user search or standard paths. This should help encapsulation of certain projects. [declare -path ./extname] > On Feb 25, 2021, at 12:15 AM, pd-list-request(a)lists.iem.at wrote: > > Message: 2 > Date: Wed, 24 Feb 2021 15:55:06 +0000 > From: Philip Stone <pkstone(a)ucdavis.edu <mailto:pkstone@ucdavis.edu>> > 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>> > Subject: Re: [PD] detect dependencies from patch > Message-ID: > <BYAPR08MB5589848DB50E378D344486FDA79F9(a)BYAPR08MB5589.namprd08.prod.outlook.com <mailto:BYAPR08MB5589848DB50E378D344486FDA79F9@BYAPR08MB5589.namprd08.prod.outlook.com>> > > Content-Type: text/plain; charset="windows-1252" > > I have to say that I have gotten kind of lost in the discussions about loading and declaring external libraries. I would like to embrace the current best practices, but don?t have a solid overview of the whole. Would anybody be willing to write up a summary? > > I think it would be an invaluable resource for new users (as well as old, like me!) > > > Best, > > Phil Stone > Davis, CA

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Pd-list February 2021