Linux-audio-user November 2016

linux-audio-user@lists.linuxaudio.org

68 participants
75 discussions

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

7 years, 5 months

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.

7 years, 5 months

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

7 years, 5 months

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

7 years, 5 months

Sequential Circuit Pro One emulation

by jonetsu

Hello, Fittingly, to a current topic, u-he made available today the Repro-1 synth, a Sequential Circuit Pro One emulation, their first emulation to date. Currently in beta, the Linux version is available for free until the end of the year. See KVR: http://www.kvraudio.com/forum/viewtopic.php?f=31&t=472608 u-he is one of those that supports the Linux platform. They don't have to, but they do. Their support is dedicated through the KVR u-he forum and is largely the work of Alexandre Bique whose Git Hub repository (for other works) is at: https://github.com/abique Cheers.

7 years, 5 months

Linux Audio Berlin user group?

by Daniel Swärd

Hi. I'm just trying here to see if people are reading this list better, since the Linux Audio Berlin list is very (VERY) quiet. We still have the regular calendar post in the c-base calendar for a meeting on the first Wednesday of the month (so next, tomorrow). Is anyone: A: reading this? B: interested in having a meeting tomorrow? Best regards, /Daniel

7 years, 5 months

avoid suspending while recording

by Hermann Meyer

Hi I've just pushed a little command-line tool, nosuspend, to gihub, which is meant to protect for suspending the computer while a given program is running, mostly use is during recording, but other operations comes in mind as well, like building a kernel while sitting in the kitchen, . . Maybe it is useful for the one or the other here as well. This little app works on computers with systemd running, usage is simple, example: nosuspend jack_capture -c 2 -p system:capture* So, simply prefix your app you wont protect with nosuspend when running, and as long it runs, the computer wont suspend and cant shot down. Stopping the app will turn anything back to normal. nosuspend make use of systemd-inhibit, it sets the lock with the UID root bit set ( high priority), but run the given app in userspace. https://github.com/brummer10/nosuspend regards hermann

7 years, 5 months

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

by tom haddington

Hi, Jeannette-- i'm a little late joining this conversation, but can't help myself. You've excellent suggestions so far. Still, you might want to listen the 1st mvt. of Brahm's second symphony and the third mvt. of his third symphony. None are fugues. The first example has canonical entrances of the well known "Lullaby" theme. The second, while not using imitative polyphony at all, is full of independent voices that are well defined. Brahms was a fantastic orchestrator defended by Rimsky-Korsakoff, himself. He merely said that we don't run to Brahm's scores because he had no interest in inventing new combinations of sound. Still, his sense of mixing, balance, and definition were infallible. Some other pieces to consider: Bartok's Concerto for Orchestra (finale), and Britten's Young Person's Guide to the Orchestra (you can just search for the fugue). Getting away from "B" composers, try Nino Rota's Concerto for Trombone and Orchestra (1st mvt.) and the second mvt. of Stravinsky's Symphony of Psalms (which opens with a canon in the winds.) i hope that helps! Tom

7 years, 5 months

That is QMidiArp-0.6.4 of course....sorry

by Frank Kober

This is a one-year maintenance release of qmidiarp. A few new little features have sneaked in and a few bugs have been fixed, both thanks to people filing tickets! Nothing else to say, except that the detailed changes are right below ;) Check it out, have fun! Best Frank --------------- qmidiarp-0.6.4 (2016-11-01) Improvements o All Modules now have the Note Filter already present in the Arps. Also, the note range entries can now be set by MIDI learn o Arp: The octave mode is now defined by independent upper/lower bounds (feature request #12 by ssj71) o LFO: New waveform flip button (feature request #11 by MilkMiruku) o Seq: The output MIDI channel is now a MIDI controllable item. This allows for instance an LFO to control the Seq MIDI channels for dispatching sounds within a sequence (feature request #13 by Menno) Fixed Bugs o LFO: Offset slider didn't follow drawing and led to jumps on first use o LFO: Waveform type switched to custom when muting points (bug #16 reported by MilkMiruku) o Arp: When using Global Storage "Restore", the restore step was incorrect ----- QMidiArp is a MIDI arpeggiator, phrase generator and controller LFO for JACK and ALSA. It can run multiple synchronized arpeggiators, LFOs and step sequencers. The modules are also available as LV2 plugins with Qt user interface. All in all it is a handy live tool. Website with Documentation: http://qmidiarp.sourceforge.net/ Download http://sourceforge.net/projects/qmidiarp/files/qmidiarp/0.6.4/qmidiarp-0.6.… Git repos http://git.code.sf.net/p/qmidiarp/code https://github.com/emuse/qmidiarp

7 years, 5 months

QMidiArp-0.6.3 bugfix release

by Frank Kober

7 years, 5 months

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Linux-audio-user November 2016