Linux-audio-user September 2020

linux-audio-user@lists.linuxaudio.org

26 participants
23 discussions

[LAA] Mamba - Virtual Midi keyboard for Jack Audio Connection Kit release 1.4

by Hermann Meyer

Hi Mamba release v1.4 is out Mamba - Virtual MIDI keyboard and MIDI file player/recorder Mamba is not only a Virtual MIDI keyboard, it's also a MIDI looper. It allow you to record, for example a bass loop on one channel and then play along on a other channel with a piano or whatever. You could save your loops to MIDI files if you wish, in any case, Mamba save your last record and load it on the next start on default. Mamba is also a MIDI visualizer, it shows not only what you play, it shows as well incoming events. It also allow you to load MIDI files, play them in loop and show the output on the keyboard. You could select which channel you would monitor on the keyboard. You could as well monitor all channels at once. Mamba includes also support by fluidsynth, you could load a soundfont and directly play along. Mamba will keep it's settings, so once a soundfont is loaded, on the next start you could just play along with the keyboard. You could load a new soundfont at any time. You could as well exit fluidsynth to use Mamba as plain Virtual MIDI keyboard with the synth of your choice. Mamba is released under the BSD Zero Clause License license The GUI is build on libxputty - A damn tiny abstraction Layer to create X11 window/widgets with cairo surfaces https://github.com/brummer10/libxputty To build Mamba from source, the following dependencies must be meat. * libfluidsynth-dev * libc6-dev * libsmf-dev * libcairo2-dev * libx11-dev * liblo-dev * libsigc++-2.0-dev * libjack-(jackd2)-dev So, here is the project page: https://github.com/brummer10/Mamba and here you'll find the last release: https://github.com/brummer10/Mamba/releases/tag/v1.4 Mamba features # Virtual Midi Keyboard for Jack Audio Connection Kit <https://jackaudio.org/> # Including NSM <https://linuxaudio.github.io/new-session-manager/> support # Including gettext <https://www.gnu.org/software/gettext/> localization support # Including fluidsynth <https://github.com/FluidSynth/fluidsynth> support # Soundfont loader for fluidsynth # Channel selector # Bank and Program selector # Keyboard mapping for qwertz, qwerty, azerty(fr) and azerty(be) selectable from menu # Keymap Editor to setup a custom Keymap # PC Keyboard mapping selector from C0 to C4 # Pitchbend, Balance, Modwheel, Detune, Expression, Attack, Release, Volume and Velocity controllers # Sustain and Sostenuto switches # Connection management Menu # Support Midi-file load, save, record and play in loop # BPM controller for playback speed # Support Midi Beat Clock for playback speed # Midi Through: forward midi input to output # Midi input highlighting # Resizable to a full range 127 key view # Load Midi-files on command-line # Support jack_transport to start/stop Midi-Loops regards hermann

4 years, 4 months

RIP, Simeon Coxe

by David W. Jones

https://www.bbc.com/news/entertainment-arts-54086106 --- David W. Jones gnome(a)hawaii.rr.com authenticity, honesty, community http://dancingtreefrog.com Sent from my Android device with F/LOSS K-9 Mail.

4 years, 4 months

LAC worries

by Will Godfrey

I'm highly conflicted over this year's LAC. I missed last year's in America, and as well as wanting to meet up with friends again, I've been given another workshop slot for Yoshimi, so I'd *really* hate to miss this one. However... At that time I'll be approaching 72 years old, which puts me well in the high risk bracket, although I think I'm fairly fit. Quarantine on return wouldn't bother me much, it's just be a bit of a nuisance. I live alone anyway. It's a 6+ hour train journey (that's time actually on the trains). This is a long time to stay masked, and I've heard reports that people are frequently taking theirs off and only putting them back on if a guard comes or the train stops. I wouldn't even think about going by air. I've never travelled well in a plane, even when much younger. I suppose I could drive, although it would probably be wise to make overnight stops each way. Also I've never driven on the continent, so don't know how I'd manage both 'wrong' side of road as well as all the French road layouts, signs and regulations. What to do :( -- Will J Godfrey http://www.musically.me.uk Say you have a poem and I have a tune. Exchange them and we can both have a poem, a tune, and a song.

4 years, 4 months

[ANN] Vee One Suite 0.9.17 - A Late Summer'20 Release

by Rui Nuno Capela

One lousy Summer, just saying goodbye,... And now this... The 'Vee One Suite' of so called 'old-school' software instruments, synthv1 [1] as a polyphonic subtractive synthesizer, samplv1 [2] a polyphonic sampler synthesizer, drumkv1 [3] as yet another drum-kit sampler and padthv1 [4] as a polyphonic additive synthesizer, are here released as the second bunch of the 'QStuff*' for the (Northern) Summer'20 ending season and bumped to **version 0.9.17**. Featuring: - a pure stand-alone JACK client with JACK-session [5], NSM (Non/New Session Management [6]) and both JACK MIDI and ALSA MIDI [7] input support; - a LV2 instrument plug-in [8]. Change-log: - Arbitrary number of pitch-shifted octave sample tables is now an instance parameter; pitch-shifting algorithm is selected as a global user preference option cf. Help > Configure... > Options > Pitch-shift type: S.M.Bernsee classic algorithm (default) or RubberBand library. (apllies to samplv1 [2] only) - Added -n, --client-name to the JACK stand-alone client application command line option arguments. - Fixed uninitialized number of voices variable; early-bird adaptations to Qt6 >= 6.0.0 and C++17 standard. The 'Vee One Suite' are free, open-source Linux Audio [10] software, distributed under the terms of the GNU General Public License (GPL) [11] version 2 or later. And here they are one more time and again: **synthv1 - an old-school polyphonic synthesizer [1] ** synthv1 0.9.17 (late-summer'20) released! synthv1 is an old-school all-digital 4-oscillator subtractive polyphonic synthesizer with stereo fx. LV2 URI: http://synthv1.sourceforge.net/lv2 website: https://synthv1.sourceforge.io http://synthv1.sourceforge.net project page: https://sourceforge.net/projects/synthv1 downloads: https://sourceforge.net/projects/synthv1/files - source tarball: https://download.sf.net/synthv1/synthv1-0.9.17.tar.gz - source package: https://download.sf.net/synthv1/synthv1-0.9.17-58.rncbc.suse.src.rpm - binary packages (openSUSE Tumbleweed): https://download.sf.net/synthv1/synthv1-0.9.17-58.rncbc.suse.x86_84.rpm https://download.sf.net/synthv1/synthv1-lv2-0.9.17-58.rncbc.suse.x86_84.rpm - AppImage [9] package (JACK stand-alone only): https://download.sf.net/synthv1/synthv1-0.9.17-58.x86_64.AppImage git repos: https://git.code.sf.net/p/synthv1/code https://github.com/rncbc/synthv1.git https://gitlab.com/rncbc/synthv1.git https://bitbucket.org/rncbc/synthv1.git **samplv1 - an old-school polyphonic sampler [2]** samplv1 0.9.17 (late-summer'20) released! samplv1 is an old-school polyphonic sampler synthesizer with stereo fx. LV2 URI: http://samplv1.sourceforge.net/lv2 website: https://samplv1.sourceforge.io http://samplv1.sourceforge.net project page: https://sourceforge.net/projects/samplv1 downloads: https://sourceforge.net/projects/samplv1/files - source tarball: https://download.sf.net/samplv1/samplv1-0.9.17.tar.gz - source package: https://download.sf.net/samplv1/samplv1-0.9.17-58.rncbc.suse.src.rpm - binary package (openSUSE Tumbleweed): https://download.sf.net/samplv1/samplv1-0.9.17-58.rncbc.suse.x86_84.rpm https://download.sf.net/samplv1/samplv1-lv2-0.9.17-58.rncbc.suse.x86_84.rpm - AppImage [9] package (JACK stand-alone only): https://download.sf.net/samplv1/samplv1-0.9.17-58.x86_64.AppImage git repos: https://git.code.sf.net/p/samplv1/code https://github.com/rncbc/samplv1.git https://gitlab.com/rncbc/samplv1.git https://bitbucket.org/rncbc/samplv1.git **drumkv1 - an old-school drum-kit sampler [3]** drumkv1 0.9.17 (late-summer'20) released! drumkv1 is an old-school drum-kit sampler synthesizer with stereo fx. LV2 URI: http://drumkv1.sourceforge.net/lv2 website: https://drumkv1.sourceforge.io http://drumkv1.sourceforge.net project page: https://sourceforge.net/projects/samplv1 downloads: https://sourceforge.net/projects/drumkv1/files - source tarball: https://download.sf.net/drumkv1/drumkv1-0.9.17.tar.gz - source package: https://download.sf.net/drumkv1/drumkv1-0.9.17-58.rncbc.suse.src.rpm - binary package (openSUSE Tumbleweed): https://download.sf.net/drumkv1/drumkv1-0.9.17-58.rncbc.suse.x86_84.rpm https://download.sf.net/drumkv1/drumkv1-lv2-0.9.17-58.rncbc.suse.x86_84.rpm - AppImage [9] package (JACK stand-alone only): https://download.sf.net/drumkv1/drumkv1-0.9.17-58.x86_64.AppImage git repos: https://git.code.sf.net/p/drumkv1/code https://github.com/rncbc/drumkv1.git https://gitlab.com/rncbc/drumkv1.git https://bitbucket.org/rncbc/drumkv1.git **padthv1 - an old-school polyphonic additive synthesizer [4]** padthv1 0.9.17 (late-summer'20) released! padthv1 is an old-school polyphonic additive synthesizer with stereo fx. padthv1 is based on the PADsynth algorithm by Paul Nasca, as a special variant of additive synthesis. LV2 URI: http://padthv1.sourceforge.net/lv2 website: http://padthv1.sourceforge.net https://padthv1.sourceforge.io project page: https://sourceforge.net/projects/padthv1 downloads: https://sourceforge.net/projects/padthv1/files - source tarball: https://download.sf.net/padthv1/padthv1-0.9.17.tar.gz - source package: https://download.sf.net/padthv1/padthv1-0.9.17-58.rncbc.suse.src.rpm - binary package (openSUSE Tumbleweed): https://download.sf.net/padthv1/padthv1-0.9.17-58.rncbc.suse.x86_84.rpm https://download.sf.net/padthv1/padthv1-lv2-0.9.17-58.rncbc.suse.x86_84.rpm - AppImage [9] package (JACK stand-alone only): https://download.sf.net/padthv1/padthv1-0.9.17-58.x86_64.AppImage git repos: https://git.code.sf.net/p/padthv1/code https://github.com/rncbc/padthv1.git https://gitlab.com/rncbc/padthv1.git https://bitbucket.org/rncbc/padthv1.git References: [1] synthv1 - an old-school polyphonic synthesizer https://synthv1.sourceforge.io http://synthv1.sourceforge.net [2] samplv1 - an old-school polyphonic sampler https://samplv1.sourceforge.io http://samplv1.sourceforge.net [3] drumkv1 - an old-school drum-kit sampler https://drumkv1.sourceforge.io http://drumkv1.sourceforge.net [4] padthv1 - an old-school polyphonic additive synthesizer https://padthv1.sourceforge.io http://padthv1.sourceforge.net [5] JACK Audio Connection Kit https://jackaudio.org/ [6] NSM, Non/New Session Management https://linuxaudio.github.io/new-session-manager/ (formerly http://non.tuxfamily.org/nsm/) [7] ALSA, Advanced Linux Sound Architecture https://www.alsa-project.org/ [8] LV2, Audio Plugin Standard, the extensible successor of LADSPA http://lv2plug.in/ [9] AppImage, Linux apps that run anywhere https://appimage.org/ [10] Linux Audio consortium of libre software for audio-related work https://linuxaudio.org [11] GNU General Public License https://www.gnu.org/copyleft/gpl.html See also: https://www.rncbc.org/drupal/node/2115 Have fun! -- rncbc aka. Rui Nuno Capela

4 years, 4 months

starting Bristol with scala

by tom haddington

> No idea why it adds the suffix, in such a situation I'd try and pass just > the basename of the scl file like this: > >> > startBristol -b3 -scala ji_12 > > Thank you for the response, Edgar. Unfortunately, it didn't work. Oh, and I pointed to the file, again, and it's no longer adding the suffix. I've attached the output from bristol. It looks as though the program is doing everything it should. It recognises all the relevant information and even calls the scala by its correct name. All I hear is ET. Thank you, again, Edgar. Bill

4 years, 4 months

Hardware timers?

by Roger

I'm just experimenting with new setups of Debian for audio. When running RealtimeConfigQuickScan it triggered a vague recollection of a discussion (here?) that configuring hpet and rtc timers is no longer necessary as they are not used any more. Is this true or am I misremembering? The wiki guide at https://wiki.linuxaudio.org/wiki/system_configuration is still a goldmine for setup but it contains some sections of which I am unsure whether they are still applicable, including the HW timers bit. Cheers Roger

4 years, 4 months

Dave Phillips' article on Linux audio plugins... is there a copy online somewhere?

by Nikhil Nair

Hi, I've found a few references to an article Dave Phillips wrote, entitled "Linux Audio Plug-Ins: A Look Into LADSPA". It's referenced on the front page of www.ladspa.org, and was, it seems, on O'Reilly's web page. However, the O'Reilly links seem to be broken, and a number of Google searches have turned up nothing. (The LADSPA homepage didn't actually list the title - I found that elsewhere; I'm assuming there is just one article that I'm seeing references to, but if Dave had more than one article on O'Reilly concerning LADSPA, this may further confuse the issue!) Can anyone direct me to a copy of this article? Failing that, is there an alternate source of introductory material you'd recommend? Thanks, Nikhil.

4 years, 4 months

starting Bristol with scala

by tom haddington

Hello, All! I'm running UbuntuStudio 18.04 and am using this command to start bristol: startBristol -b3 -scala ji_12.scl I got bristol from the repos, which is completely up to date.. The scala file is in .bristol/memory/profiles. The problem is that I hear no difference in the chords. That's the just intonation that Robert Rich used for Geometry, and the A-flat and G-flat chords should be particularly spicy. I've pointed the command line to the specific file in my scala folder, but the output tells me that bristol can't load the file ji_12.scl.scl. I'm not sure why it adds the suffix. What am I missing? Also, if anyone knows of a Hammond emulator that is compatible with scala, I'd love to hear about it. That's the real goal. Bill

4 years, 4 months

[OT] Future of Music Distribution (and examples?)

by Andrew A. Grathwohl

Hello Linux Audio folks! I wanted to see if I could get a conversation going about the future of music distribution. Given that we are people who make creative works with free software, I figured this is as decent a place as any to discuss what is out there, what is possible, and what should be avoided. My own personal approach to distribution is detailed below, but I invite others on this list to share their own methods and ideas. By now, most of us are probably resigned to the fact that the music world will look quite a bit different going forward, compared with prior eras. Many musicians feel that today's points of engagement with music fail to provide adequate revenues, and are taking to social media to criticize Spotify and the ilk for not being better "stewards" of music. I largely agree with those sentiments, which is why I have been taking the opportunity to construct a solid home base for my music project <https://multipli.city>, which is fully operated on my own physical hardware and some AWS cloud services at a cost of $7/month. It's just a simple jekyll template <https://github.com/SacredData/pRoJEct-NeGYa> hosted on GitHub Pages. However, by publishing my music releases to my own jekyll page one time, I get the added benefit of also publishing to all desired locations on the web simultaneously, including to a podcast feed <https://multipli.city/podcast.xml> compatible with Apple's podcast network. It's weird to me that we are still trying to unit-price music in a world where it's cheaper and easier than ever to record, produce, and distribute it. I am not necessarily interested in profiting from my own musical endeavors, but a friend of mine is a rather popular independent electronic artist, who has pointed out to me that despite millions of annual streams, streaming services alone don't provide him anywhere near a livable income. In my opinion, this shouldn't be so. There's also the issue of being beholden to the whims of private firms who run various online music services. Anyone here miss SoundCloud Groups, for example? I've begun to wonder if solutions like mine could be the foundation for a new kind of music distribution approach - perhaps one where musicians maintain podcast feeds, where monetization vectors are much more profitable and much more flexible for individuals to exercise without betraying their own values.

4 years, 4 months

Voting open for Libre Music Challenge #3 "B.Excellent" (only until Sunday!)

by Christopher Arndt

Hi all, some of you may be active on linuxmusicians.com and my be already aware of this, others maybe not, but the 3rd installment of the Libre Music Challenge has come to a close and entries can be listened to and voted on: https://linuxmusicians.com/viewtopic.php?p=122922#p122922 (Go the first post in this thread for an explanation what the challenge is about.) The voting period is very short, since the winner(s) will already be announced on unfa's next Live stream, which usually happens on the evening of the first Sunday of the month, i.e. upcoming Sunday. Share & Enjoy Chris

4 years, 4 months

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Linux-audio-user September 2020