Linux-audio-user

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3 participants
20662 discussions

by Yassin Philip

Hello, two quick questions: * Is there someone here using Ubuntu (16.04 LTS) with a hard RT PREEMPT kernel? * Can he tell me how to obtain it? Probably not pre-built from a repository/ppa, I've done my homework and found two that seem nothing but dead : o https://launchpad.net/~abogani/+ppa-packages o https://launchpad.net/~linux-libre/+archive/ubuntu/rt-ppa Otherwise, I guess I'll have to build it. Never done it. I've compiled all sort of stuff, but never a kernel. Now what would be the easiest way? By easy, in fact, I only mean scriptable. Ideally something like * Get the latest kernel sources package with apt * Fetch the corresponding patch (this is the hard part for me, I'm a bit lost in versions) * Apply the patch, build the kernel and install it The idea being to be able to repeat the procedure when a new kernel is out in the lifespan of my Ubuntu version, to stay up to date. Any pointers? Thanks for your patience. Note that if I manage to get a fairly repeatable procedure, I'll write a tutorial about it. Cordialement, yPhil -- Yassin Philip http://yassinphilip.bitbucket.org

9 years

Re: [LAU] MOL - MIDI Organic Looper

by Maurizio Berti

> Not sure what package I'm missing ... but I get: > > bob$ ./moloop > "sni-qt/14917" WARN 16:11:18.077 void StatusNotifierItemFactory::connectToSnw() Invalid interface to SNW_SERVICE > Traceback (most recent call last): > File "./moloop", line 7, in <module> > mol.main() > File "/home/bob/Downloads/mol/mol-master/mol/__init__.py", line 1379, in main > Looper(app) > File "/home/bob/Downloads/mol/mol-master/mol/__init__.py", line 926, in __init__ > self.show_settings() > File "/home/bob/Downloads/mol/mol-master/mol/__init__.py", line 1264, in show_settings > dialog = SettingsDialog(self) > File "/home/bob/Downloads/mol/mol-master/mol/__init__.py", line 423, in __init__ > self.auto_connect_group.setId(radio, i) > AttributeError: 'SettingsDialog' object has no attribute 'auto_connect_group' > > Probably a pyqt4 module. I've seen a similar error in a previous software I released. Unfortunately I'm away for a couple of days, so I can't check it, and it could still be an error of mine. I'll try to debug it as soon as I come back! Maurizio

9 years

ANN: jack-matchmaker 0.3.0

by Christopher Arndt

jack-matchmaker --------------- jack-matchmaker is a small command line utility that listens to JACK port registrations by clients and connects them when they match one of the port pattern pairs given on the command line at startup. jack-matchmaker never disconnects any ports. The port name patterns are specified as pairs of positional arguments or read from a file (see below) and are interpreted as Python regular expressions, where the first pattern of a pair is matched against output (readable) ports and the second pattern of a pair is matched against input (writable) ports. Matching is done against the normal port names as well as any aliases they have. Example: jack-matchmaker '.*:out_l' system:playback_1 \ '.*:out_r' system:playback_2 Port patterns can also be read from a file given with the -p/--pattern-file option. The file is re-read when the HUP signal is received. Where to find it: GitHub: https://github.com/SpotlightKid/jack-matchmaker PyPI: https://pypi.python.org/pypi/jack-matchmaker Requirements: * A version of Python 3 with a ctypes module (i.e. PyPy 3 works too). * JACK version 1 or 2. * Linux, OS X (untested) or Windows (untested, no signal handling Acknowledgements: jack-matchmaker is written in Python and incorporates the jacklib module taken from falkTX's Cadence application. It was inspired by jack-autoconnect, which also auto-connects JACK ports, but doesn't support port aliases. jack-autoconnect is also written in C++, and therefore probably faster and less memory hungry. The idea to read ports (patterns) from a file and re-read them on the HUP signal was "inspired" by aj-snapshot. Share & Enjoy, Chris Arndt

9 years

ANN: jack-matchmaker 0.4.0

by Christopher Arndt

jack-matchmaker --------------- Version 0.4.0 is out hard on the heels of 0.3.0! This now has the full feature set I wanted the program to have when I started coding it, so I'll probably release a stable version 1.0 soon-ish. If you have any suggestions for improvement or other comments, please let me know! Changes: * Added -c command line option to list existing JACK port connections. Where to find it: GitHub: https://github.com/SpotlightKid/jack-matchmaker PyPI: https://pypi.python.org/pypi/jack-matchmaker Share & Enjoy, Chris Arndt

9 years

Music: infraLogos

by jonetsu

Here is one that could possibly be put in (slow) techno/trance somehow. https://soundcloud.com/nominal6/infralogos Cheers.

9 years

Freewheeling

by jonetsu

Hi, 8 years later (last release is 2008) - does freewheeling today works with the current Linux VST plugins ? http://freewheeling.sourceforge.net/ Cheers.

9 years

MOL - MIDI Organic Looper

by Maurizio Berti

Hello, I just pushed another update on my latest little project. It is a MIDI looper, but a bit different from other looping systems. Usually you have a time basis (a MIDI clock) or you manually set when your loop starts and stops. MOL works in a different way: it just "listens" to what you play, and if you play it for 3 times, it will repeat it. There is a configurable time threshold (default is 100 milliseconds), so you have to be precise, but not too much. I'm thinking about adding a velocity threshold too. Apart from that, you don't need to do anything else: MOL will automatically play and loop the pattern you repeated to the ports the original MIDI devices is connected to, until you stop it. That's it, the concept is almost that. Since simple things are usually not so simple, I've added an extensive set of configurable features and options. By default, MOL will automatically connect to every ALSA MIDI hardware ports (system sound card, USB MIDI devices) and will play the loop pattern to every device to which that device is already connected to, but you can also set it to connect to software ports only, every available (and new) MIDI port, or a customizable port list (port names and client_id:port_id are available, also using regular expressions), even with port blacklisting. Other features: - loops can be triggered according to event type (by default it uses NOTEON events only) - specific event types can be ignored at all, and will not be played - a feedback port is provided (also with auto-connect features), which will send custom events on status change - MOL status (enable/disable/stop) can be controlled via MIDI (again, with auto-connect) - when a loop stops, it will try to stop *only* the notes in the loop that are still playing - further custom MIDI events can be sent on loop stop to the ports the original source is connected to I started this project just a week ago (after a long time of thinking about it), so it probably has some bugs here and there. Though, I think it's an interesting concept, and I'd like you to give it a try. MOL is written in Python 2.7, and requires PyQt4 and pyalsa. You can find it here: https://github.com/MaurizioB/mol There's not a setup script yet, but, if you meet all the requirements mentioned above you just need to run the main script as explained in the repository description. I'll be glad to have any kind of feedback, I hope some of you will like this little program. Cheers, MaurizioB

9 years

Re: [LAU] [OT] Looking for symphony with good counterpoint or independent voices

by al3xu5 / dotcommon

> Date: Tue, 1 Nov 2016 13:59:59 +0100 (CET) > From: "J. C." <julien(a)mail.upb.de> > To: Linux-audio-users' mailinglist > <linux-audio-user(a)lists.linuxaudio.org> > Subject: [LAU] [OT] Looking for symphony with good counterpoint or > independent voices > Message-ID: <alpine.LNX.2.20.1611011351110.22573(a)britney.spears.net> > Content-Type: text/plain; format=flowed; charset=US-ASCII > > Hey hey, > sorry to ask this here, but I'm not very familiar with 19th century music, > which is what I'm interested in. I know that this list harbours some > connaisseurs of classical music. :) > > I'm looking for symphonies with good examples of independent voices or > counterpunctual techniques. [...] > > So, if someone could suggest more works, or composers, which are famed for > their strong, parallel voices, I'd be very grateful. A master of counterpoint during the last years of 19th century was surely J. Brahms. I suggest listen to his 4 symphonies [1] and its beautiful vocal and chorals works [2] (among them [3] [4] [5] which are simply wonderful imho). Good listening! A. [1] https://en.wikipedia.org/wiki/List_of_symphonies_by_Johannes_Brahms [2] https://en.wikipedia.org/wiki/List_of_compositions_by_Johannes_Brahms_by_ge… [3] https://en.wikipedia.org/wiki/A_German_Requiem_%28Brahms%29 [4] https://en.wikipedia.org/wiki/Schicksalslied [5] https://en.wikipedia.org/wiki/N%C3%A4nie -- al3xu5 / dotcommon Say NO to copyright, patents, trademarks and any industrial design restrictions.

9 years

Qtractor - & friends - ONE WINDOW setup!!

by Yassin Philip

Guys, I'm really excited, I want to share this with you : I managed to solve the biggest ergonomics gripe that I had with Qtractor <http://www.rncbc.org/drupal/comment/7175#comment-7175>, and given the fact that I live in it, you can imagine my trepidation :p You see the mixer is a /floating/ window. And while that's fine for a lot of people in a lot of use cases, for me, most of the time, it's not. I don't like floating windows, for many reasons, and to avoid the questioning of my very membership of the troubadour's guild, let's skip to the first : Just because ; Please don't waste our time, go play with your own windows and float them to your heart's content :/ I basically need to see my mixer at all times. Well no, not at all times, in fact most of the time I'm in the timeline, full screen ; But when I want to see it, I definitely want to see my timeline /as well/, all of it. Very rarely/never do I need to see /just the mixer, full screen/. Note that I had this issue with basically /every/ horizontal timeline-based DAW that I used (Ableton live - up until 7, after that I don't know - comes to mind) the only viable alternative being the Ardour way, where the selected track/bus can be embedded on the side. I love that. Add to that the fact that a lot of WMs don't always honor the position directives of said floating windows, like typically, in both Unity and i3 "default", when one toggles the mixer's display with either the mixer button or the F9 shortcut, it springs back in the dead center of the screen, no matter where you painstakingly positioned it before. I don't know about you, but grabbing my mouse to constantly resize a window /the same way every time/ simply ruins my joie de vivre. Oh, I'm sure in Kwin it's pixel perfect ;) back to our overlapping problem : I want to see my mixer, but I also want to see ALL my tracks by scrolling vertically/zooming in the timeline. I also, when I open a plugin GUI, or more than one for that matter, dont want it/them to get in the way. And finally, according to recent studies floating windows are bad for the ozone layer. If you ask me for an interview, that's what I'll say :) Enter i3 <https://i3wm.org/>. This "tiling" WM is quite popular, it's light, configurable, and very well documented. I cannot emphasize "light" enough : Try it on this old laptop that struggles more at each Debian iteration. The idea is that no window overlap/float, except for, well, floating windows. Obvious ones, file copy dialogs, that sort of things. And Qtractor's Mixer is, by default, in this category, so I struggled a bit to get to what I want, but I finally did it (and missed a heartbeat) look: https://youtu.be/TeYHkjlHtTg https://youtu.be/sTKr_G2AnKQ It's a directive in i3 config file, that targets this specific window based on its class and name, discovered using the xprop command. That means that under this regime, it will *never* float again. for_window [class="Qtractor" instance="Mixer - Qtractor"] floating disable One can go further and specify precise sizes, positions and layouts, and put them in the config file, and switch to them on-the-fly. Oh, and of course everything can be resized/re-positioned with the keyboard. i3, by default, uses the super (win logo) key in a very elegant, mnemonically and unobtrusive way. Fantastic, told ya. Now let me tell you, the real fun begins. No window overlap, no more "always on top" hacks, or putting down the guitar pick to fiddle with the (*$-@+°#¤!) mouse ; Everything respond at the touch of a key, this is per-fick :) cheers everybody. Programmers, musicians, carpenters and motocyclists, lovers, friends, acquaintances, etc. and /of course/ (duh) every combination of it :) yPhil -- Yassin "xaccrocheur" Philip http://yassinphilip.bitbucket.org

9 years

Look ma, I'm in the paper :)

by Yassin Philip

http://libremusicproduction.com/articles/lmp-asks-21-interview-yassin-philip It was a bit weird remembering all those things. Thanks to everyone of you, and let's keep rocking it :) yPhil -- Yassin "xaccrocheur" Philip http://manyrecords.com / http://yassinphilip.bitbucket.org

9 years

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Linux-audio-user