Pd-list April 2020

pd-list@lists.iem.at

36 participants
38 discussions

how to change font?
by mick mengucci 29 Apr '20

29 Apr '20

Hello, I have problem with the font of my Pd. I have installed Pd 0.50.2 and the font it is using is Courier 10 instead of Deja Vu Sans Mono. So I get this: *WARNING: Font family 'DejaVuSansMono.ttf' not found, using default (Courier 10 Pitch)* Not a big deal but I would like to understand why and how to have it right. I teach so I would like my students to see I use the same font as them ;) The funny thing is that I had this problem, I deleted all directories I could find about Pd, did: *sudo apt-get --purge remove puredata* *sudo apt-get autoremove* *sudo apt-get --purge remove puredata-core* (because with *dpkg list* and it was still there*)* Then I reinstalled this version of Pd, compiled from here http://msp.ucsd.edu/Software/pd-0.50-2.src.tar.gz <https://www.google.com/url?q=http://msp.ucsd.edu/Software/pd-0.50-2.src.tar…> then compiled with *./autogen.sh* *make * *sudo make install* Then on top of this I tried *sudo apt-get install fonts-dejavu* with no effect, in the terminal I read it is already there in the *font folder.* I add a screenshot just to show how it looks and that I have the font files in the font directory. [image: image.png] Thanks for any advice -- MKSTURA.EU MISTURAPURA.NET <http://WWW.MISTURAPURA.NET> mickmengucci.bandcamp.com facebook.com/mickmengucci3 facebook.com/Labio.pt pure mixture vibration since 1995

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Re: [PD] how to change font?
by Dan Wilcox 29 Apr '20

29 Apr '20

A Linux guru will probably be able to answer you exact issue, but I can respond with the general answers: > Hello, > I have problem with the font of my Pd. I have installed Pd 0.50.2 and the > font it is using is Courier 10 instead of Deja Vu Sans Mono. So I get this: > *WARNING: Font family 'DejaVuSansMono.ttf' not found, using default > (Courier 10 Pitch)* The Pd GUI uses the Tk library which accesses the system to find what fonts are available. If the deja vu package is installed and the font is accessible by other applications, it could be a problem with Tk and/or the naming of the font on your platform. Pd actually does very little itself other than ask Tk to get a font from the system called "DejaVu Sans Mono" which it then uses to estimate sizing for the object boxes. > Not a big deal but I would like to understand why and how to have it right. This is a bug, either with some configuration on your system, with Tk, or possible with Pd. > I teach so I would like my students to see I use the same font as them ;) This is also why deja vu sans mono is used for all platforms: consistency of the canvas between platforms by default. > The funny thing is that I had this problem, I deleted all directories I > could find about Pd, did: > *sudo apt-get --purge remove puredata* > *sudo apt-get autoremove* > *sudo apt-get --purge remove puredata-core* (because with *dpkg list* and > it was still there*)* > Then I reinstalled this version of Pd, compiled from here > http://msp.ucsd.edu/Software/pd-0.50-2.src.tar.gz <http://msp.ucsd.edu/Software/pd-0.50-2.src.tar.gz> > <https://www.google.com/url?q=http://msp.ucsd.edu/Software/pd-0.50-2.src.tar… <https://www.google.com/url?q=http://msp.ucsd.edu/Software/pd-0.50-2.src.tar…>> > > then compiled with > *./autogen.sh* > > *make * > *sudo make install* Rebuilding Pd does nothing in this case as the font finding & loading is all done via the tcl/pd-gui.tcl startup script. Finding fonts is not done in C on Linux or macOS and only via a small custom Tcl plugin on Windows. > Then on top of this I tried > *sudo apt-get install fonts-dejavu* > with no effect, in the terminal I read it is already there in the *font > folder.* As the font/README.txt file states: "DVSM is usually installed with the system & is a dependency for the puredata package. The included font file in this directory are not installed with Pd. The fallback font when not found is Courier." The files in the font directory are only used for Windows and macOS as they need to be distributed with Pd to be available without requiring manual installation. -------- Dan Wilcox @danomatika <http://twitter.com/danomatika> danomatika.com <http://danomatika.com/> robotcowboy.com <http://robotcowboy.com/>

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problem with connecting to Arduino
by rolfm＠dds.nl 24 Apr '20

24 Apr '20

i've been working with the Arduino UNO and Pd for years. now i'm starting with a new board UNO Wifi Rev2. the board works with the Arduino IDE, also with the IDE's serial monitor. the problem with Pd is in the initialization. when the board is powered on and i open the port in Pd, nothing happens. no 'hello world' or whatever comes through, no lights on the board show any activity. [comport] doesn't give any error message. when i close the port in Pd, go to the IDE, start the serial monitor, the board comes alive, spits out the text. closing the IDE, opening the port in Pd again, dadada, the text shows up. as long as the board stays plugged in, the communication gives no problems. in Windows 10 the port for a 'regular' UNO appears as "Arduino UNO (COM5)". the new board as "mEDBG Virtual COM Port (COM4)". is it possible that [comport] fails to initialize this particular type? rolf

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Sub process crash on rpi
by Andrew Lyons 23 Apr '20

23 Apr '20

Hi! Are there any known issues with sending high data rate messages to sub processes on raspberry pi in pure data 0.48? My MIDI foot pedal board has two pedals. The one that drives a network in in the parent process causes no issues. The one that gets passed to two child subprocesses causes a lockup when the position of the pedal changes too suddenly. Some other notes: - Using buster. - I've tried inserting a speed limit in the parent patch, before the data gets sent to the child processes. - in the journal, xrun warnings continue as the audio sustains some small number of samples. Any suggestions on what this might be, and how to fix it appreciated... Cheers

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Number Boxes, Sliders, Symbols - strange behavior (no graphic update)
by Martin Peach 23 Apr '20

23 Apr '20

Hi, Ingo reported that " For those who are interested what the issue was: I was moving a window with [hcs/sysgui] automatically during startup. When the window is visible everything is ok. When the window is hidden with [*** vis 0( most graphical objects mentioned above stop updating their graphics. I. e. a slider sends the values but the slider stays graphically at the default setting that it had during creation. Now I'm moving windows with [hcs/sysgui] only when they are visible and it works again." Now I'm on Windows10 running pd 0.50.1, not using [hcs/sysgui]. I use the zoom feature since I would need a microscope to view the patch (well not quite -- the letter 'F' in 'File' on the menu of the main Pd window is 1.38mm high). Anyway, the graphics freeze, in that bot types of number boxes, arrays, radio buttons, etc. don't update on the screen although they remain functional otherwise. Buttons still flash when banged via the patch or by clicking, but not much else works. This seems to happen after the screen blanks but I'm not sure if that's the cause since it takes a while before it happens. Martin

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Best way to talk to the GPIO of a Raspberry Pi 4 ?
by Ingo 21 Apr '20

21 Apr '20

What's the best way to control the GPIO of a Raspberry Pi 4 directly from within Pd? I remember seeing at least one "wiringPi" library for Pd back when I didn't need it . Is there anything that can be downloaded directly from Deken? Thanks! Ingo

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Re: [PD] VU / Peak Meter ? - external or abstraction
by Dan Wilcox 21 Apr '20

21 Apr '20

Sweet. I'm going to try out Peter Ps abstraction. Additionally, I know this is not what you are asking for, but there is iemlib [fadtodb] and [dbtofad] which matches the default "MIDI" range of a slider to that of a VU in dB or conversely. I use these to match a control vslider to the same height as a vu for my faders. When I transitioned most of my patches to vanilla-only, I made abstraction versions of these using lookup tables, [m_fadtodb] & [m_dbtofad] in the rc-patches: https://github.com/danomatika/rc-patches <https://github.com/danomatika/rc-patches> There are also some simple channel faders: [g_chan] & [g_chan2] > On Apr 21, 2020, at 10:31 AM, pd-list-request(a)lists.iem.at wrote: > > Message: 3 > Date: Tue, 21 Apr 2020 09:03:14 +0200 > From: "Ingo" <ingo(a)miamiwave.com <mailto:ingo@miamiwave.com>> > To: <pd-list(a)lists.iem.at <mailto:pd-list@lists.iem.at>> > Subject: [PD] VU / Peak Meter ? - external or abstraction > Message-ID: <000001d617aa$ed5a0ff0$c80e2fd0$(a)miamiwave.com <mailto:000001d617aa$ed5a0ff0$c80e2fd0$@miamiwave.com>> > Content-Type: text/plain; charset="utf-8" > > Does anybody know of an accurate mono or stereo VU meter? > > Abstraction or external. > > > > Using env~ with the Pd internal level meter works but I don't seem to have > any reference of the real peak or RMS level. > > > > The only thing I could do is sending some test signals from the SPDIF out to > my RME sound card and tweak the level to match 0dB. > > But there should be an accurate level calculation directly within Pd . > > > > I'm on Pd 0.49 on Debian. -------- Dan Wilcox @danomatika <http://twitter.com/danomatika> danomatika.com <http://danomatika.com/> robotcowboy.com <http://robotcowboy.com/>

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Gem: Message about libDeckLinkAPI.so not found on Debian
by Peter P. 21 Apr '20

21 Apr '20

Hi, loading Gem from the formidable Debian testing package 1:0.94-1+b1 Pd throws the following message on the OS shell: libDeckLinkAPI.so: cannot open shared object file: No such file or directory Debian has not such file in its package archive. Gem loads fine otherwise but I thought it would be good to mention as this message arose suspicion on my user side. thanks, P

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$n expansion inconsistency with arrays
by Alexandre Torres Porres 21 Apr '20

21 Apr '20

Hi, we've been discussing this on github and agreed we need to get more voices involved here in the list. I've found an inconsistency where arrays (inserted via the put menu or shortcut) will not expand "$n" variables in their names ($0, $1, $2, etc...) Nonetheless, if you have an object like [table $0-x] or [array define $0-x], when you click on these objects to open a subwindow containing an array, you'll see these do expand dollar symbols. Moreover, the norm in Pd seems to be expand dollar symbols in general. Labels in atom boxes and iemguis will show up expanded. When you open a subwindow with such variables, they are expanded and shown inside parenthesis in the top of the window. And, above all, messages that come out of objects (like [symbol $0-x]) will get expanded in the output. There's only one difference between "$0" and "$1/2/3...". While a "$0" is always given, be it an abstraction or not, the others need to be passed as arguments to an abstraction. As such, when you have an abstraction without these arguments, or if opened as a top level patch (not loaded as an abstraction), these variables are not expanded. In short, "$0" is always present and expanded, and others are only expanded if given. I'm not counting this difference as an inconsistency, as there's a good reason for the different behaviour. As far as the array inconsistency, $1 will generate more confusion. An [array] or [table] object will have an array that shows an expanded name or not, depending wether you have that argument or not, while an array inserted via the put menu or shortcut will never expand it. It makes sense to me we should make things as consistent as possible and I don't see the point why the array has this inconsistent and different behaviour. For some reason, it behaves like objects, and I don't see it closely related to objects. By looking at [array] and [table], which are indeed objects, I can see it makes total sense - you can check the unexpanded symbols in the objects' arguments, and check the expanded message in the array name. If, for some reason, checking unexpanded symbols for arrays is useful for you (I can't see why*), you can always use such objects. * an array name that looks like 1003-x is clearly an expanded symbol from "$0", if you're loading an argument symbol into an array name, it's bad if you can't see it and just see "$1-x" instead. Anyway, what do you people think? I'm hoping to request a fix for this inconsistency, hopefully for allowing "$n" get expanded in arrays inserted via the put menu

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phasor~ with non fixed input
by Boštjan Jerko 20 Apr '20

20 Apr '20

I’m trying to understand the script I got and there is one part where phasor~ gets an input that is not a number. Something like on the attached image. I don’t get why and how the output is produced. In the manual it says for the phasor that “incoming message overrides the initial value”. Does that mean that the phasor will act as it gets the last value in the buffer e.g. buffer has size of 64 samples and the input to phasor is the last sample and that will be used to calculate new 64 values that will be played? Hope the question is clear enough? B.

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Pd-list April 2020