Linux-audio-dev March 2015

linux-audio-dev@lists.linuxaudio.org

18 participants
18 discussions

by Tim Goetze

http://quitte.de/dsp/caps.html The latest release of the caps audio plugin suite contains a number of bug fixes and improvements as well as changes intended to make it more suitable for low-power systems. http://quitte.de/dsp/caps.html#CHANGES Most notably, support for a variety of little-used features has been dropped, reducing the binary size by roughly a third. There's also a new plugin implementing simplistic linear emulation of several guitar amplifier loudspeaker cabinets with reduced computational complexity: http://quitte.de/dsp/caps.html#CabinetIII The compressor plugins now report current gain reduction: http://quitte.de/dsp/caps.html#Compress http://quitte.de/dsp/caps_0.9.24.tar.bz2 Cheers, Tim

6 years, 1 month

jack2 API

by Vaclav Mach

Hi, I wrote some code (in C++) using JACK1 API. It was quite easy to do that with a plenty of example files. Recently, I tried to utilize C++ libraries provided in JACK2 because I don't like mixing OO code with C api. There are a lot of C++ classes in JACK2 but I'm not able to link/include them. For example: instead of #include <jack/jack.h> I'm trying to #include "jack2/JackServer.h". There are no example files. What am I doing wrong? Or is it a bad way of using JACK2? Thanks, Vaclav

9 years, 7 months

[ANN] Qtractor 0.6.6 - The Lazy Tachyon is out!

by Rui Nuno Capela

And finally, for the wrap of the pre-LAC2015@JGU-Mainz [1] release party, no other than the 'crown jewel' of the whole Qstuff* bunch ;) Qtractor 0.6.6 (lazy tachyon beta) is out! Release highlights: * LV2 and VST plugins GUI position persistence (NEW) * MIDI clip editor record/overdub note rendering (FIX) * VST plugin recursive discovery/search path (NEW) * VST-shell sub-plugins support (FIX) * also some old and new lurking bugs squashed. Qtractor [2] is an audio/MIDI multi-track sequencer application written in C++ with the Qt4 framework. Target platform is Linux, where the Jack Audio Connection Kit (JACK [3]) for audio and the Advanced Linux Sound Architecture (ALSA [4]) for MIDI are the main infrastructures to evolve as a fairly-featured Linux desktop audio workstation GUI, specially dedicated to the personal home-studio. Website: http://qtractor.sourceforge.net Project page: http://sourceforge.net/projects/qtractor Downloads: http://sourceforge.net/projects/qtractor/files - source tarball: http://download.sourceforge.net/qtractor/qtractor-0.6.6.tar.gz - source package (openSUSE 13.2): http://download.sourceforge.net/qtractor/qtractor-0.6.6-16.rncbc.suse132.sr… - binary packages (openSUSE 13.2): http://download.sourceforge.net/qtractor/qtractor-0.6.6-16.rncbc.suse132.i5… http://download.sourceforge.net/qtractor/qtractor-0.6.6-16.rncbc.suse132.x8… - quick start guide & user manual (see also: the wiki): http://download.sourceforge.net/qtractor/qtractor-0.5.x-user-manual.pdf - wiki (help really wanted!): http://sourceforge.net/p/qtractor/wiki/ Weblog (upstream support): http://www.rncbc.org License: Qtractor is free, open-source software, distributed under the terms of the GNU General Public License (GPL [5]) version 2 or later. Change-log: - MIDI clip record/reopen to/from SMF format 0 has been fixed. - LV2 and VST plugins GUI editor widget position is preserved across hide/show cycles. - Added application description as freedesktop.org's AppData [6]. - Added a "Don't ask this again" prompt option to zip/archive extrated directory removal/replace warning messages. - MIDI clip editor (aka. piano-roll) gets lingering notes properly shown while on record/overdubbing. - Current highlighted client/port connections are now drawn with thicker connector lines. - Fixing segfaults due to QClipboard::mimeData() returning an invalid null pointer while on Qt5 and Weston. - Return of an old hack/fix for some native VST plugins with GUI editor, on whether to skip the explicit shared library unloading on close and thus avoid some mysterious crashes on session and/or application exit. - Force reset of plugin selection list when any of the plugin search paths change (in View/Options.../Plugins/Paths). - Recursive VST plugin search is now in effect for inventory and discovery on path sub-directories (VST only). - Non-dummy scannig for regular VST, non-shell plugins, were doomed to infinite-loop freezes on discovery, now fixed. References: [1] LAC2015@JGU-Mainz - Linux Audio Conference 2015 The Open Source Music and Sound Conference April 9-12 @ Johannes Gutenberg University (JGU) Mainz, Germany http://lac.linuxaudio.org/2015/ [2] Qtractor - An audio/MIDI multi-track sequencer http://qtractor.sourceforge.net [3] JACK Audio Connection Kit http://jackaudio.org [4] ALSA, Advanced Linux Sound Architecture http://www.alsa-project.org/ [5] GPL - GNU General Public License http://www.gnu.org/copyleft/gpl.html [6] AppData Specification http://people.freedesktop.org/~hughsient/appdata/ See also: http://www.rncbc.org/drupal/node/879 Enjoy && keep the fun. -- rncbc aka. Rui Nuno Capela

9 years, 7 months

io GNU/Linux 2015.02 released

by Manu Kebab

Hi guys, One week fixing most annoying bugs and improving: - Sound system (JACK2+PulseAudio) control and robustness - Hard-disk installer (need testing, be careful) and much more... I'm glad to share with you io GNU/Linux 2015.02 :) Both 32 and 64 bits are available for download. Packages lists: http://io.gnu.linux.free.fr/2015.02/io-live--e18-3.16.7-ckt7-686-pae--2015.… (32-bit) http://io.gnu.linux.free.fr/2015.02/io-live--e18-3.16.7-ckt7-amd64--2015.02… (64-bit) Enjoy ;)

9 years, 7 months

Return with us now to those thrilling days !

by Dave Phillips

Greetings, Something to put smiles on faces: http://linux-sound.org/lms1999/ The state of Linux audio software, February 1999. Best, dp

9 years, 7 months

[ANN] QjackCtl 0.3.13, Qsynth 0.3.9, Qsampler 0.3.0 released!

by Rui Nuno Capela

The pre-LAC2015 [1] release frenzy continues... ;) Now for the next batch... * QjackCtl - A JACK Audio Connection Kit Qt GUI Interface [2] * QjackCtl 0.3.13 is out. QjackCtl is a simple Qt application to control the JACK [4] sound server, for the Linux Audio infrastructure. website: http://qjackctl.sourceforge.net downloads: http://sourceforge.net/projects/qjackctl/files - source tarball: http://downloads.sourceforge.net/qjackctl/qjackctl-0.3.13.tar.gz - source package: http://downloads.sourceforge.net/qjackctl/qjackctl-0.3.13-22.rncbc.suse132.… - binary packages: http://downloads.sourceforge.net/qjackctl/qjackctl-0.3.13-22.rncbc.suse132.… http://downloads.sourceforge.net/qjackctl/qjackctl-0.3.13-22.rncbc.suse132.… change-log: - Added application description as freedesktop.org's AppData [9]. - Setup dialog form is now modeless. - Introducing brand new active patchbay reset/disconnect-all user preference option. - Current highlighted client/port connections are now drawn with thicker connector lines. - New user preference option on whether to show the nagging 'program will keep running in the system tray' message, on main window close. - Connections lines now drawn with anti-aliasing; connections splitter handles width is now reduced. - Drop missing or non-existent patchbay definition files from the most recent used list. * Qsynth - A FluidSynth Qt GUI Interface [3] * Qsynth 0.3.9 is out. Qsynth is a FluidSynth [6] GUI front-end application written in C++ around the Qt4 toolkit using Qt Designer. website: http://qsynth.sourceforge.net downloads: http://sourceforge.net/projects/qsynth/files - source tarball: http://downloads.sourceforge.net/qsynth/qsynth-0.3.9.tar.gz - source package: http://downloads.sourceforge.net/qsynth/qsynth-0.3.9-5.rncbc.suse132.src.rpm - binary packages: http://downloads.sourceforge.net/qsynth/qsynth-0.3.9-5.rncbc.suse132.i586.r… http://downloads.sourceforge.net/qsynth/qsynth-0.3.9-5.rncbc.suse132.x86_84… change-log: - Added application description as freedesktop.org's AppData [9]. - New user preference option on whether to show the nagging 'program will keep running in the system tray' message, on main window close. - Application close confirm warning is now raising the main window as visible and active for due top level display, especially applicable when minimized to the system tray. - A man page has been added. - Translations install directory change. - Allow the build system to include an user specified LDFLAGS. - Czech (cs) translation updated (by Pavel Fric, thanks). * Qsampler - A LinuxSampler Qt GUI Interface [4] * Qsampler 0.3.0 is out. Qsampler is a LinuxSampler [7] GUI front-end application written in C++ around the Qt4 toolkit using Qt Designer. website: http://qsampler.sourceforge.net downloads: http://sourceforge.net/projects/qsampler/files - source tarball: http://downloads.sourceforge.net/qsampler/qsampler-0.3.0.tar.gz - source package: http://downloads.sourceforge.net/qsampler/qsampler-0.3.0-13.rncbc.suse132.s… - binary packages: http://downloads.sourceforge.net/qsampler/qsampler-0.3.0-13.rncbc.suse132.i… http://downloads.sourceforge.net/qsampler/qsampler-0.3.0-13.rncbc.suse132.x… change-log: - Added application description as freedesktop.org's AppData [9]. - Added this "Don't ask/show this again" option to some if not most of the nagging warning/error message boxes. - Mac OS X: Fixed default path of linuxsampler binary. - When closing qsampler and showing the user the dialog whether to stop the LinuxSampler backend, set the default selection to "Yes". - Master volume slider now getting proper layout when changing its main toolbar orientation. - Messages standard output capture has been slightly improved as for non-blocking i/o, whenever available. - Adjusted configure check for libgig to detect the new --includedir. - A man page has beed added (making up Matt Flax's work on debian, thanks). - Translations install directory change. - Added support for SF2 instrument names/preset enumeration. - Added instrument list popup on channel strip which shows up when the instrument name is clicked. Allows faster switching among instruments of the same file. - Adjusted configure check for libgig to detect its new --libdir (impolitely forcing the user now to have at least libgig 3.3.0). License: QjackCtl, Qsynth and Qsampler are free, open-source software, distributed under the terms of the GNU General Public License (GPL) version 2 [8] or later. Weblog (upstream support): http://www.rncbc.org See also: http://www.rncbc.org/drupal/node/877 References: [1] LAC2015@JGU-Mainz - Linux Audio Conference 2015 The Open Source Music and Sound Conference April 9-12 @ Johannes Gutenberg University (JGU) Mainz, Germany http://lac.linuxaudio.org/2015/ [2] QmidiCtl - A JACK Audio Connection Kit Qt GUI Interface http://qmidictl.sourceforge.net [3] Qsynth - A FluidSynth Qt GUI Interface http://qsynth.sourceforge.net [4] Qsampler - A LinuxSampler Qt GUI Interface http://qsampler.sourceforge.net [5] JACK Audio Connection Kit http://jackaudio.org [6] FluidSynth - A SoundFont Synthesizer A real-time software synthesizer based on SoundFont 2 specifications http://www.fluidsynth.org [7] LinuxSampler - The Linux Sampler Project A modular, streaming capable, realtime audio sampler http://www.linuxsampler.org [8] GPL - GNU General Public License http://www.gnu.org/copyleft/gpl.html [9] AppData Specification http://people.freedesktop.org/~hughsient/appdata/ Enjoy && have some fun! -- rncbc aka. Rui Nuno Capela

9 years, 7 months

[ANN] QmidiNet 0.2.1, QmidiCtl 0.2.0 released!

by Rui Nuno Capela

The pre-LAC2015 [1] pre-season has just been started! Here goes the first batch... ;) * QmidiNet - A MIDI Network Gateway via UDP/IP Multicast [2] * QmidiNet 0.2.1 released! QmidiNet [2] is a MIDI network gateway application that sends and receives MIDI data (ALSA-MIDI and JACK-MIDI) over the network, using UDP/IP multicast. Inspired by multimidicast [4] and designed to be compatible with ipMIDI [5] for Windows. Website: http://qmidinet.sourceforge.net Project page: http://sourceforge.net/projects/qmidinet Downloads: http://sourceforge.net/projects/qmidinet/files - source tarballs: http://downloads.sourceforge.net/qmidinet/qmidinet-0.2.1.tar.gz - source package (openSUSE 13.2): http://downloads.sourceforge.net/qmidinet/qmidinet-0.2.1-7.rncbc.suse132.sr… - binary packages (openSUSE 13.2): http://downloads.sourceforge.net/qmidinet/qmidinet-0.2.1-7.rncbc.suse132.i5… http://downloads.sourceforge.net/qmidinet/qmidinet-0.2.1-7.rncbc.suse132.x8… * QmidiCtl - A MIDI Remote Controller via UDP/IP Multicast [3] * QmidiCtl 0.2.0 released! QmidiCtl [3] is a MIDI remote controller application that sends MIDI data over the network, using UDP/IP multicast. Inspired by multimidicast [4] and designed to be compatible with ipMIDI [5] for Windows. QmidiCtl has been primarily designed for the Maemo enabled handheld devices, namely the Nokia N900 and also being promoted to the Maemo Package repositories. Nevertheless, QmidiCtl may still be found effective as a regular desktop application as well. Website: http://qmidictl.sourceforge.net Project page: http://sourceforge.net/projects/qmidictl Downloads: http://sourceforge.net/projects/qmidictl/files - source tarballs: http://downloads.sourceforge.net/qmidictl/qmidictl-0.2.0.tar.gz - source package (openSUSE 13.2): http://downloads.sourceforge.net/qmidictl/qmidictl-0.2.0-6.rncbc.suse132.sr… - binary packages (openSUSE 13.2): http://downloads.sourceforge.net/qmidictl/qmidictl-0.2.0-6.rncbc.suse132.i5… http://downloads.sourceforge.net/qmidictl/qmidictl-0.2.0-6.rncbc.suse132.x8… Weblog (upstream support): http://www.rncbc.org License: Both QmidiNet and QmidiCtl are free, open-source software, distributed under the terms of the GNU General Public License (GPL) version 2 [6] or later. Change-log: - Reset (to network defaults) button added to options dialog, which also gets some layout reform. - Added application description as freedesktop.org's AppData [7]. - Previously hard-coded UDP/IP multicast address (225.0.0.37) is now an user configurable option. - A man page has beed added. (QmidiCtl backlog) - Allow the build system to include an user specified LDFLAGS. (QmidiCtl backlog) See also: http://www.rncbc.org/drupal/node/876 References: [1] LAC2015@JGU-Mainz - Linux Audio Conference 2015 The Open Source Music and Sound Conference April 9-12 @ Johannes Gutenberg University (JGU) Mainz, Germany http://lac.linuxaudio.org/2015/ [2] QmidiNet - A MIDI Network Gateway via UDP/IP Multicast http://qmidinet.sourceforge.net [3] QmidiCtl - A MIDI Network Gateway via UDP/IP Multicast http://qmidinet.sourceforge.net [4] multimidicast - sends and receives MIDI from ALSA sequencers over network http://llg.cubic.org/tools/multimidicast [5] ipMIDI - MIDI over Ethernet ports - send MIDI over your LAN http://nerds.de [6] GPL - GNU General Public License http://www.gnu.org/copyleft/gpl.html [7] AppData Specification http://people.freedesktop.org/~hughsient/appdata/ Cheers && Enjoy -- rncbc aka Rui Nuno Capela

9 years, 7 months

io GNU/Linux 2015.01 released

by Manu Kebab

Hi, io GNU/Linux 2015.01 has been released (32 and 64-bits). io GNU/Linux is a Live DVD/USB based on Debian Sid and focused on multimedia. This new version includes an installer (without support for EFI/GPT based systems for now) Kernel 3.16.7-ck7, Jack2 as default sound server, e18 as desktop environment and a big collection of installed software... Full persistence for USB install (with encryption) and more cool stuff... For more infos: manual, packages list, screenshots, video etc... Check: -> http://io.gnu.linux.free.fr/ (work in progress) -> https://sourceforge.net/projects/io-gnu-linux/ Feedbacks welcome, enjoy :) MK

9 years, 8 months

Hydrogen and Round Robin

by Aurélien Leblond

I just bought the drumdrops mapex samples to create a kit in Hydrogen... They are gonna be great with the direct/overhead/room functionaly in Hydrogen. The set comes with Round Robin and with a bit of thinking I came up with 2 possible design to get this functionality in. COMPLEX: - Add a list of samples in the Layer object ; the sampler will chose randomly one sample of the list when the instrument layer is played - GUI wise, when a user click edit/delete layer, a form will popup asking the user which of the sample he wants to edit/delete The pros is that data structure wise it is really clean: Instrument->Components->Layers->RoundRobin->Samples The cons is that GUI wise it's not very clear for the user what's going on, and it asks for more development. SIMPLE - Increase the number of layer per instrumebr to 64 - A check box is added in the instrument to active round robin - If round robin is activated, layers that share the same velocity range will be played randomly. If round robin is not activated, the layers that share the same velocity range are player simultaneously The pros is that the changes are very minimum to Hydrogen can be implemented in a couple of hours. In addition it is simpler for the user to see what's going on (checkbox and the visual of layers). So what do you guys think? I wouldn't mind coding the simple options, cannot wait to put all the samples i just bought into this! Aurélien

9 years, 8 months

jack1 unsafe with accidentally (?) internal exported functions

by Tito Latini

Hi, some internal functions are globals and I think it is not what you want (jack2 seems ok). For example, a naive way to forbid the creation of other jack clients is: # tested with jack 0.124.1 gcc -ljack private_club_mode.c ./a.out # prints "JACK compiled with System V SHM support." echo $? # 0 jack_lsp # no more clients please, segfault (jack_client_open_aux) /* private_club_mode.c */ #include <jack/jack.h> int jack_register_server(const char *, int); int main() { return jack_register_server("umpa", 0xDADA); } Tito

9 years, 8 months

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Linux-audio-dev March 2015