Linux-audio-dev

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7502 discussions

[ANN] XSL stylesheets for converting specimen banks to petri-foo banks

by Thomas Mayer

Hi, I have just finished two XSL stylesheets for converting specimen banks to the save format used by petri-foo, so a user can easily switch to petri-foo: https://github.com/residuum/specimen2petri-foo There are two stylesheets, depending on your locale settings, i.e. if your locale uses comma or dot as decimal separator (if 1/2 is saved as 0.5 or 0,5 on your system). If there are any other decimal separators out there your copy s2p_comma.xsl and replace strings "0," and "1," to your settings. Do not do that with s2p_dot.xsl, because necessary version information for XML and XSL use strings like "1.0" etc. Standard sample rate is set to 44.1 kHz, if you want to change to another value, just edit the value in line 6. If you encounter any bugs, open an issue on Github or send me an email. Thanks, Thomas -- "Spielen Sie Strip Schnipp-Schnapp?" (Adam Weishaupt to Johann Wolfgang von Goethe in: Robert Shea & Robert A. Wilson, The Golden Apple) http://www.residuum.org/

11 years, 5 months

Re: [LAD] Call for testing: ALSA driver for Fireworks/BeBoB based devices

by Takashi Sakamoto

Hi Maximilian, Thanks for your test and report. I cannot reproduce the bug which you reported, with: - Debian GNU/Linux 8 (jessie) - Linux kernel 3.12-1-amd64 - mplayer2 2.0-701-gd4c5b7f-2 - All of BeBoB devices which I have - $ mplay -ao alsa:device=hw=1 /usr/share/sounds/alsa/* I believe 'verbose' option for mplayer may help our debugging. Regards Takashi Sakamoto

11 years, 5 months

Release of new WORLD-based voice synthesizer

by Tobias Platen

Hello WORLD is a free software speech synthesizer on the basis of a Vocoder. It has been widely used as a backend for UTAU[1] but it should be also possible to use it as a backend for eSpeak and other accessibility and/or music applications such as the "Singing Computer"[2]. My modified version of WORLD uses the well known vorbis codec for compression. The world4espeak synthesizer is interface compatible to MBROLA, and can be used to synthesize both singing and speech in real time on a modern computer. It is hosted at gitorious.org [3]. Currently there are no voices yet, a manual how to create voices will be published soon. Tobias Platen [1] http://en.wikipedia.org/wiki/Utau [2] http://devel.freebsoft.org/singing-computer [3] https://gitorious.org/sekai

11 years, 5 months

Converting specimen banks to petri-foo

by Thomas Mayer

Hi, I have played around with petri-foo the first time, and I am thinking about switching from specimen to it. Is there a utility to convert specimen banks to petri-foo banks? As far as I can tell, it is a simple XML transformation, and I would try that, if such a utility does not exist. Thanks, Thomas -- "Ich komme aus dem Staunen nicht heraus." "Dann bleib halt drin, du Seppel" (Dietmar Dath - Die Abschaffung der Arten) http://www.residuum.org/

11 years, 5 months

LAC 2014: the Linux Audio Conference - Deadline Extension

by Frank Neumann

Since this didn't make it yet to the LAD list, I thought I'd better forward it - --- Hi all, The Linux Audio Conference submissions deadline has been extended! It is now February 3rd, 2014 (23:59 HAST) So, if you were considering to submit a paper but couldn't make up your mind yet, here is your chance to become active! Never forget that this conference lives through the people participating in it. February 3rd is the new deadline for all submission types: papers, music, installations, workshop proposals. Check out the link below for more info: http://lac.linuxaudio.org/2014/participation Please spread this information to anyone who might be interested. If you have any questions, drop us a line at lac(a)linuxaudio.org We are looking forward to seeing you in Karlsruhe in May! Thanks, The LAC2014 organization team

11 years, 5 months

Re: [LAD] Releasing source code is not enough, I think...

by Filipe Coelho

On 01/21/2014 07:10 PM, John Hammen wrote: >> Then they should wait until their distro or someone else provides >> > >a package. Or pay someone to do the work for them, just as they >> > >have to for commercial software, or for the mechanic you mention. > > (...) > > the idea being: a person whose paid responsibility it is to make us > LAUs happy with fresh new packages and, ideally also work with folks > upstream on build sanity issues. Filipe, would you be willing to > supervise such a person, feed them the less fun parts of what you do > and check their work? If the community is willing to pay for it, sure. But I find that a bit hard to believe... There's a difference on how KXStudio repositories are done vs regular debian/ubuntu repos. Debian and Ubuntu usually build against a specific version, and don't usually do backports. on KX repos I'm starting build all packages the same way (ie, the generic linux builds), and update software very often (sometimes minutes after release :D ). I hate when distros only package new stuff for the their newest, unreleased/testing/upcoming version and completely ignore the users running stable versions... :(

11 years, 5 months

LV2 GUI - GTK widget signal disconnect

by Aurélien Leblond

Hello, I have a strange issue in my plugins GUI beatslash-lv2 (https://github.com/blablack/beatslash-lv2) or deteriorate-lv2 (https://github.com/blablack/deteriorate-lv2). The GUI widgets to control the plugins gets disconnected when used for a while. I can reproduce the issue in Ingen almost everytime, although I never know exact when the GUI will disconnect and Ingen doesn't output any error. What happens is that once the widgets disconnect, if I try to change the values via the GUI (turn the dial, change the value of a combo box, etc) the changes are not transferred to the LV2 DSP. The way I connect the GUI values to the LV2 values is as follows: m_comboWaveForm->signal_changed().connect(compose(bind<0> (mem_fun(*this, &Vco2GUI::write_control), p_waveForm), mem_fun(*m_comboWaveForm, &ComboBoxText::get_active_row_number))); where m_comboWaveForm is of type Gtk::ComboBoxText* Even if I close the GUI and reopen it, the signals won't reconnect. I'm not sure where the issues is (GTK, LVTK.....or my code!). Is there a better way to connect signals in such design? Thanks in advance for the help. Aurélien

11 years, 5 months

[ANN] Boss DS-1 simulator LV2 plugin

by Gianfranco Ceccolini

Greetings Linux audio users and developers We are very happy to announce the DS-1 distortion stomp box simulator. You can download it at https://github.com/portalmod/mod-distortion To install use "make & make install" and you'll have the bundle in /usr/local/lib/lv2 folder. It uses a mathematical model of the original DS-1 electrical circuit and the programmer (André Coutinho) took lots of care to stick to the analog circuit setup. More simulators are on the way, hence the mod-distortions repo. Feedbacks are always welcome. Happy 2014 for everyone Gianfranco The MOD Team

11 years, 5 months

JACK, cgroups and systemd

by Dominique Michel

Recently, I experimented with Debian sid, which use systemd. Systemd idea is nice, but its implementation is a catastrophe. It is more than one year I am using the kernel cgroups on gentoo to get rt scheduling with JACK, that without any trouble. On Debian, this is just impossible, because whatever I try, systemd insist to put what it think is good to have into the rt cgroup, which soon or later result in a complete system freeze with even dead magic keys. After loosing my time a few days with this, I removed Debian and installed gentoo instead. I found the reason here: http://article.gmane.org/gmane.linux.kernel/1063354 "Lennart Poettering: Well, this feature is... completely irrelevant for normal desktop people. ... In fact, I just prepped a patch to systemd to move every service and every user session into its own cgroup in the 'cpu' hierarchy (in addition to the group it already creates in the 'systemd' hierarchy)." Another completely idiotic stuff of this guy. The point of the cgroups is it is possible to setup them for whatever use will be made with a computer, and this guy think he have the insane and pretentious capability to decide for every single user of the use they will made with their computers, and he is suggesting users doing something else are abnormal. He must be stopped! Regards, Dominique

11 years, 5 months

Static verification of real-time safety

by David Robillard

Hello, Does anyone know if anything has emerged from http://www.google-melange.com/gsoc/proposal/review/google/gsoc2012/fundamen… or, what alternative solutions for doing the same thing exist today? I know I have #ifdef __clang__ # define REALTIME __attribute__((annotate("realtime"))) #else # define REALTIME #endif in my code and was tinkering with an implementation capable of doing this at some point, but can't dig up the details, or whatever system I was using to do it. It would be oh so very nice to be able to statically verify that code is real-time safe... -- dr

11 years, 5 months

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Linux-audio-dev