I'm in touch with the l2-ork dev list and, it turns out, I am running a beta build of Raspbian in arm64 instead of armhf. As of today, there is no working Purr-Data build for arm64. I will try to update this post in the future once an official 64-bit release of Raspbian is out there and Purr-Data is packaged for it.

Hi everyone, I'm trying to install Purr-Data on my Raspberry Pi 4 running Raspbian OS. Unfortunately all deb packages for ARM processor available in the project's GitHub releases page show unsatisfiable dependencies (I'm away from my Pi right now but I think the issue is due to a package named libgsl0ldbl). Does anyone know if Purr-Data was supposed to support Raspberry Pi and, if so, how to get it running? Pd vanilla runs fine on my setup.

Cheers,
Gilberto

Really nice stuff!

Hi all,

I created a little interface abstraction for my new Alesis V49 and I thought that perhaps someone else out there might also have some use for this. The send names are listed on the help file.

Download: V49-interface.zip or https://github.com/gilbertohasnofb/pd-abstractions-and-libraries.

Cheers,
Gilberto

Hi all,

I just made a little interface abstraction for my Samson Graphite M25 and I thought that perhaps someone else out there might also have some use for this. The send names are listed on the help file. Note that I only implemented Preset 1.

Download: M25-interface.zip or https://github.com/gilbertohasnofb/pd-abstractions-and-libraries.

Cheers,
Gilberto

Great, many thanks for all the info

@jancsika Thanks for the info, I was not aware of that. Do you know whether I will need to re-register to the mailing list or not, since the servers were wiped? Thanks again.

Hi all,

I have been trying to access https://disis.music.vt.edu/listinfo/l2ork-dev in order to change my password but the link is broken for me for a couple of days already. I tried writing the list at l2ork-dev@disis.music.vt.edu to ask what's going on but the e-mail was not delivered. Is anyone experiencing the same problem? Does anyone know what is going on? I am also having the same issue with the Linux-audio-user mailing list at https://lists.linuxaudio.org/listinfo/linux-audio-user.

Cheers,
Gilberto

Looks really nice!

Very cool!

Very nice!

@nicnut the name is exactly [matrixctrl], but as I wrote in the first reply, it seems this object does not come with pd-extended for some reason. But to download, use the link I gave above (https://puredata.info/downloads/jmmmp) and click on "Get jmmmp for All platforms (Source code)", unpack it and add it to your Pd path, and that should be it. Cheers!

My pleasure, Jose, and fire up if you have any more questions. I have to say that Miller's book is really the ultimate source for these kind of things, in particular if you want to understand what truly goes on with these objects (be ready for some good amount of math).

Cheers!
Gilberto

Hi, I would recommend you to take a look at chapter 8.4.1 "Subtractive synthesis" in Miller Puckette's book The Theory and Technique of Electronic Music, available at http://msp.ucsd.edu/techniques.htm, and then pages 256-257 (of the book printed page numbering, not the pdf file page numbering) for the usage in Pd.

Cheers,
Gilberto

@peeshder Hi there,

Sure, here is a simplified version of my patch:

Download it here: pedal.pd

It should be fairly self-explanatory, but let me know if you need any help. The function to advance to the "next event" is tied to a bang button (which you can click) and to the key "b" in the keyboard, because the pedal we bought outputs a "b" keystroke. Just replace with whatever you need (for instance, use [sel 32] instead of [sel 98] to use the space bar, or you can also alter the patch to use some MIDI pedal, etc.).

Hope this helps, cheers!
Gilberto

Hi vixo,

Concerning creating your own externals, I suggest you take a look at this pdf here: http://pdstatic.iem.at/externals-HOWTO/pd-externals-HOWTO.pdf

Presumably an object in c will run quicker than a patch made out of separate objects to do the same thing?

I believe this will depend on the complexity of the task, as well as the type of objects you use. Some objects are notorious for using more CPU than others, but depending on what you want to do a Pd only solution could work very well.

Cheers!
Gilberto

By the way, someone recommended me a pedal called Line6 FBV Express MKII, which costs around 90 EUR here in Germany. Looks quite good, I will see if my friend isn't interested in investing a bit more and getting one of those, it actually has 4 pedal switches and looks quite nice:

http://www.dolphinmusic.co.uk/shop_image/uploads/Image/fbvexpressmkii_rear.jpg

@Coalman

out of curiousity, where did you see those for 10 euros?

I found them on Amazon.de. Actually, I have just now found out that on Amazon.co.uk you have even cheaper ones, there is one for 6.37 pounds only. Try typing "usb hid pedal" and you will find them (if not, PM me and I will send you the links).

Cheers!
Gilberto

Hi guys, thanks for the replies.

@whale-av I was first considering a MIDI pedal and interface, but they are really not that cheap as the single pedal solution. Also, I will not necessarily be there to help my friend with this performance, so I'd rather have a plug'n play cheap solution (I also don't think he would be willing to invest money in a pedal AND in a interface). Concerning the compatibility I heard from some people in the list that actually these pedals are simply seen as "keyboards" by the computer, so they basically send a single key stroke. If that would be the case, then it would be trivial to use them with [key] in Pd.

@Coalman Yeah, I had thought about that, but I doubt my friend will be willing to carry a accordion and computer PLUS a MIDI keyboard just for the sake of connecting a pedal. I think the USB pedal is really the easiest option, the only question is about the compatibility, but if David and the other guys are right then there should be no issue. And then again, these things are so cheap (10 euros) that my time researching should cost more than buying one and trying it out!

Thanks again guys, I really appreciate. Cheers!
Gilberto

Hello everyone,

I recently composed a piece for accordion and live electronics which will be performed by a friend of mine who lives in a different country than me, and so has to manage all the logistics of the performance on his own. This piece requires the use of a foot switch to activate events in the Pure Data patch I wrote. I recommended my friend to get a USB foot switch so that we can use the [hid] object to make it activate the events in the patch. The problem is that the online stores selling these USB foot switches he found do not mention anything about them being OS X compatible, but one store does clearly categorize the device as a HID. Here is the kind of pedal he is considering to get: http://www.hesta.com.pl/sklep/img/p/43-150-thickbox.jpg

I am myself a Linux user and don't know a thing about peripherals in OS X, so would anyone have any advice concerning this situation? Would any of these generic USB HID devices work fine or should we better try getting something else?

Thanks a lot! Cheers,
Gilberto