Pd-list April 2021

pd-list@lists.iem.at

37 participants
44 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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Multiple audio outputs on a single-board computer ?
by Pierre Massat 14 Jul '21

14 Jul '21

Dear all, I haven't posted anything on this list in years. I'm trying to build a system to play several sound files in a loop, each around 2 minutes in length, all at the same time. By "several" I mean 10 to 15 different files. While I'd have no problem making a Pd patch to achieve this, I have no idea what hardware I could use. I have a limited budget, and I was planning on running Pd on a Raspberry Pi (or similar single-board computer). Is there any cheap way of outputing than many channels from a single (a couple of) RPi ? Thanks in advance, Pierre.

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[PD-announce] vstplugin~ v0.5 pre-release!
by Christof Ressi 24 May '21

24 May '21

Hi, here is a pre-release for vstplugin~ v0.5 - a Pd external to run VST2 and VST3 plugins. You can find it on Deken or download it here: https://git.iem.at/pd/vstplugin/-/releases/v0.5-test1 --- The most important changes: * VST3: support multiple input/output busses ("-i" and "-o" creation argument flags) + new methods for obtaining bus info * VST3: fixed possible wrong channel count (regression introduced in v0.4) * Linux: allow to run 32-bit and 64-bit Windows plugins (via Wine) * Linux: fix non-functional VST3 editor * some thread-safety improvements which fix occasional crashes with NI plugins (and possibly others) The full changelog is here: https://git.iem.at/pd/vstplugin/-/releases/v0.5-test1 --- Beside trying out the new features, it would be very appreciated if you could test it with your existing projects and check if nothing is broken. If you find any issues, please file a bug report here: https://git.iem.at/pd/vstplugin/-/issues Have fun! Christof _______________________________________________ Pd-announce mailing list Pd-announce(a)lists.iem.at https://lists.puredata.info/listinfo/pd-announce

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4-point interpolation changes timbre depending on sample rate
by Max 04 May '21

04 May '21

Hi list, the 4-point interpolation in tabread4~ has been a popular topic in the past, going back to at least 2008. [1] A similar issue is in delread4~. In fact a simple resonator changes its timbre quite drastically by just changing the sample rate of the audio interface. Attached is a test patch. The issue becomes audible when choosing an odd delay time and compare the result between an odd and an even sample rate (e.g. 44.1k vs. 48k). This is not good. In fact this is a serious defect. Imagine you want to market a product like a synth plugin (based on libpd) which sounds different depending on if the daw is opened in 44.1 or 48 kHz. Cyrille Henry has coded tabread4c~ with a four-point cubic interpolation in the nusmuk library, but there is no delread4c~ equivalent in nusmuk. Clemens Wegener has coded delreadsinc~ which implements a Whittaker–Shannon interpolation (Sinc function). This implementation does sounds consistent in any sample rate. It also sounds much better at very slow speeds inside a pitch shifter where delread4~ produces serious artefacts. The Sinc function requires a larger padding for the interpolation. There are a couple of questions regarding on how to contribute this to Pd. Vanilla objects are currently: delwrite~ = the sink delread~ = control rate tap delread4~ (vd~) = audio rate tap with a four-point interpolation 1. the code in delwrite~ isn't agnostic towards the interpolation since it already provides the padding for the 4 point interpolation 2. if we add more interpolation methods to delread / tabread, the cleanest way would be to just have one tap object and the interpolation can be changed by a message and argument to it. currently there are implementations for the miller 4pt, cubic 4pt and Sinc. Unfortunately delread4 already carries the 4 from 4-point interpolation in its name, so probably it would be the best to deprecate that and find a new name like varidelay~ or so. [1] Review of tabread4~ threads in the archive https://lists.puredata.info/pipermail/pd-list/2019-06/125391.html [2] https://github.com/chairaudio/pure-data/tree/feature/delreadsinc

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compander-limiter from slop~-help.pd
by Peter P. 04 May '21

04 May '21

Hi list, nice weather today, isn't it? I am trying to understand the [pd compander-limiter] example from slop~'s help patch because I need a 0dBFS brickwall limiter as abstraction without externals. When set to the "no change" parameters, the example will still saturate any signals hotter than 0dBFS. I don't understand what the ratio parameter does, especially its unit and range. It is 100 for dynamic reduction and 200 for expansion in the examples. Furthermore the threshold parameter is 100 for "expansion" and "compression", but 60 for "noise gate"... "Limit" does introduce audible saturation for signals above 0dBFS and I am wondering which paramters could prevent this. Lowering the speed parameter to values smaller than 50 improves this a bit. Is speed an inverse attack time parameter perhaps? And I can't seem to make sense of the boost parameter. Any hints are greatly appreciated! Thanks in advance! Peter

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kiosk-plugin crashes Pd
by rolfm＠dds.nl 28 Apr '21

28 Apr '21

windows 10, Pd-51.0-64 KioskNewWindow True ShowMenu False ScrollBars False the kiosk.cfg is in the same map as the Pd-patch. when opening a patch the menu-bar is still present, it disappears after clicking in/on the patch window. when opening a patch with several sub-patch windows already open, the menu-bars are present, but Pd crashes when clicking on the sub-patch windows. sometimes it's immediately at the first one, other times at the second or the third. when opening the main patch first, and the sub-patch windows later with a [vis 1( message in the main patch, the timing seems important: when using a [loadbang] - [del 100] the menu-bars are still present, as is the crashing of Pd after clicking on the windows. with [del 1000] the menu-bars are gone, and Pd does not crash. rolf

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kiosk-plugin not in deken?
by rolfm＠dds.nl 27 Apr '21

27 Apr '21

hi, because the (old?) kiosk-plugin shows an (old) error ( https://lists.puredata.info/pipermail/pd-list/2017-11/120989.html ) i was looking with deken if there's a new version. but deken does not find any kiosk-plugin. has it been withdrawn? rolf

2 1

OSC limitations in Vanilla
by Alexandre Torres Porres 27 Apr '21

27 Apr '21

I asked this on the facebook group, thought I'd ask it here as well. Who cannot be happy with vanilla's OSC support and still needs mrpeach and stuff? I mean, really really need as in there's no way to deal with such OSC tasks in Vanilla. Tell me what exactly please... I know that it can happen and how, I just wanted examples in the real world, and I also believe Vanilla is fine for most use cases. I just never use OSC as all I do is inside Pd anyway :) I see [netsend]/[netreceive] make [udpsend]/[udpreceive] obsolete these days for OSC... but we also have [routeOSC] and [packOSC], and in Vanilla's documentation we see this: ~*no attempt is made here to clearly distinguish between the OSC address (symbols) and the following data, nor between blobs and lists of numbers - it is assumed that you know what types the message should contain. You can alternatively use the OSC objects from mrpeach which have more features than these.*~ cheers

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Pd-list April 2021