Pd-list December 2022

pd-list@lists.iem.at

32 participants
36 discussions

sonogram abstraction idea with data structures.
by João Pais 11 Dec '22

11 Dec '22

Generating and displaying many structs can be very slow, it might not be the most efficient way. Not sure internally if it's better to bang~ a whole table, or find a method to go not so fast. Anyway, when generating structs, it will help if the window where they will be drawn is closed. I think the eargram library had already a sonogram also based on data structures, probably using timbreId. I also did some own improvements to the partial tracer file (for both analysis and synthesis), there were some small bugs/incoherences there: (not sure if this picture will show in the list) > I wanted to implement a sonogram analysis like max's spectroscope~ > does (see picture) with FFT analysis and data structures. Any ideas? I > guess I can [fft~] connected to a [tabsend~] and then have a [bang~] > reading the table values for generating the graph, that's my first guess. > > But I am also now inspired by partialtracer.pd from the data > structures tutorial, which uses [sigmund~] and it'd be great if it had > a new output mode for raw FFT amplitudes, I am assuming that the > 'peaks' output doesn't really work for this, or would it?

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Re: [PD] RaspberryPI GEM
by Dan Wilcox 11 Dec '22

11 Dec '22

As far as I know, nope. GEM requires full OpenGL while RPi supports OpenGL ES only. GEM needs modernization to support ES and maybe Vulkan or something similar at some point but it's a *massive* effort likely. I suggest writing a graphical frontend in a different environment such as OpenFrameworks and communicate between Pd and your app with OSC. > On Dec 11, 2022, at 9:59 PM, pd-list-request(a)lists.iem.at wrote: > > Message: 1 > Date: Thu, 8 Dec 2022 20:46:03 +0100 > From: Jean-Marie Adrien <jm.adrien.mnt(a)gmail.com <mailto:jm.adrien.mnt@gmail.com>> > To: Pd-List <pd-list(a)lists.iem.at <mailto:pd-list@lists.iem.at>> > Subject: [PD] RaspberryPI GEM > Message-ID: <3100A19F-F2F1-4049-AFC0-475AB18A0E9B(a)gmail.com <mailto:3100A19F-F2F1-4049-AFC0-475AB18A0E9B@gmail.com>> > Content-Type: text/plain; charset=us-ascii > > Hello > Anyone knows wether it is feasible nowadays to run GEM on a Raspberry PI and process some 2500 pix_data grey value in real time at 25 fps ? > Thanks ! > :) > JM -------- Dan Wilcox @danomatika <http://twitter.com/danomatika> danomatika.com <http://danomatika.com/> robotcowboy.com <http://robotcowboy.com/>

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Re: [PD] [random] and seed value
by Dan Wilcox 11 Dec '22

11 Dec '22

Related: https://github.com/pure-data/pure-data/issues/1717 <https://github.com/pure-data/pure-data/issues/1717> > On Dec 11, 2022, at 9:59 PM, pd-list-request(a)lists.iem.at wrote: > > Message: 2 > Date: Sun, 11 Dec 2022 16:55:40 +0100 > From: Thomas Mayer <thomas(a)residuum.org <mailto:thomas@residuum.org>> > To: pd-list(a)lists.iem.at <mailto:pd-list@lists.iem.at> > Subject: [PD] [random] and seed value > Message-ID: <478be1b4-8f1c-ee0f-d11c-889b51371243(a)residuum.org <mailto:478be1b4-8f1c-ee0f-d11c-889b51371243@residuum.org>> > Content-Type: text/plain; charset=UTF-8; format=flowed > > Hello, > > currently [random] uses a fixed value for initialisation. This leads to > the same sequence of values all the time. > > https://github.com/pure-data/pure-data/blob/c0cd34924a50bdd1cc37dfb6b01f9be… <https://github.com/pure-data/pure-data/blob/c0cd34924a50bdd1cc37dfb6b01f9be…> > > My guess is, that most users probably expect at least different seed > values every time. > > Maybe the help file should explicitely state the behaviour or a > different way for deriving the initial seed should be used, e.g. taking > the local time. Or a better PRNG could be used as well. > > If we take the solution to initialize [random] with a different seed > each time, an explanation on how to revert to the old behaviour of a > seed value of 1489853723 should be mentioned in the help. > > I could tackle that, but would like a discussion about that before coding. > > Thanks, > Thomas > -- -------- Dan Wilcox @danomatika <http://twitter.com/danomatika> danomatika.com <http://danomatika.com/> robotcowboy.com <http://robotcowboy.com/>

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hidio: can't load library
by Samuel Burt 11 Dec '22

11 Dec '22

Hi, Pd list. I have a student who was trying to use hidio in Pd in Windows. We have 64-bit Pd installed and we installed hidio with Deken, but we can't get the declare object to load it. When we added it to startup items, Pd printed "hidio: can't load library". There was discussion about the stability of hidio back in 2019, though, with it in Deken, I'd assume that it should be in a usable state. Any updates? Sam

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RaspberryPI GEM
by Jean-Marie Adrien 08 Dec '22

08 Dec '22

Hello Anyone knows wether it is feasible nowadays to run GEM on a Raspberry PI and process some 2500 pix_data grey value in real time at 25 fps ? Thanks ! :) JM

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RPI4 GPIO
by Simon Iten 05 Dec '22

05 Dec '22

What is the *current* prefered method to read GPIO pins from within PD on a raspberry pi 4?

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Pd-list December 2022