Linux-audio-dev

linux-audio-dev@lists.linuxaudio.org

3 participants
7535 discussions

by Andrew Kelley

I don't understand why speakers are using the analog output cable for sound. How about, use a digital interface like HDMI or USB? Can anyone recommend high quality speakers I can purchase which use a digital interface to my computer?

10 years, 9 months

[LAD] Clean version of Advanced Gtk+ Sequencer 0.4.2-52

by Joël Krähemann

Hi, Clean version available of Advanced Gtk+ Sequencer: http://gsequencer.org/downloads/ags-0_4_2-52.tar.bz2 A half year later after releasing 0.4.2 its end is fourseeing, for now me should be able to do extensive testing. To compile and run: ./configure make ags ./ags bests Joël Krähemann

10 years, 9 months

[LAD] LAC2015 Aftermath: The LAC2014 Percussion Combo Kit now available

by Frank Neumann

[The posting to LAA is awaiting moderator approval for 2 days, so I take the liberty of cross-posting] Hi, during LAC2015 in Mainz last week, I gave a lightning talk on what I called "The LAC2014 Percussion Combo". It was a presentation about a little field recording session conducted one year earlier, during LAC2014 in Karlsruhe, and what I made out of it. The data is now finally online, including the actual sample library kit (individual wav files) with a mapping file for Hydrogen, a tiny demo pattern, and a demo song called "That's LAC" that came to life "out of nowhere" - well, I guess I'll simply call it my first Linux Audio "release" ever :-). Read all about it here: http://linuxaudio.de/wp/?p=158 Thanks go out to the individual artists whose performance I had the honour to record: Marc Groenewegen, Pjotr Lasschuit, Nils Gey, Bernard Tressol, Michael Seeber, Stefano Pedrinazzi, Marie-Kristin Meier, and Fernando Lopez-Lezcano. Enjoy, Frank

10 years, 9 months

Re: [LAD] [LAU] Linux Audio Berlin user group

by David Runge

Excellent. The less mailman to configure for me on Debian-based systems, the better! ;) May 6th sounds good! Any thoughts on what time? I suppose early evening? 8PM okay? So many new mailing lists with interesting topics as of late! I just subscribed to the one you mentioned below. What are your DNS issues exactly? Zone file/ MX record related? Seems okay from the outside (if you host your stuff on gandi exclusively): host -t MX linuxaudio.berlin linuxaudio.berlin mail is handled by 50 fb.mail.gandi.net. linuxaudio.berlin mail is handled by 10 spool.mail.gandi.net. See ya soon, hopefully. Best, David On 22.04.2015 00:37, Sam Tuke wrote: > Hi All, > > On 21/04/15 15:07, Bruno Gola wrote: >> There were lot's of Berliners at LAC 2015 and after talking to some of >> them we thought it would be nice to start a linux audio user group here >> in Berlin. > Keen to hear who's interested and agree a date for our first meet :) > > I've got the domain up and running, will put a more interesting front > page on there soon, and also get Mailman ready for the new discuss list > (as Bruno mentioned it's setup except for DNS). > > On 21/04/15 16:54, Nils Gey wrote: >> that is very good to hear! On behalf of the "Open Source Audio Meeting >> Cologne" I wish you luck. > Great to hear from you Nils and thanks for your advice. No chance of > keeping it social as I'm a total misanthrope. Not really ;) > > On 21/04/15 22:10, Harry van Haaren wrote: >> I'm visiting berlin from the 4th to the 11th - and being a Linux Audio >> head I'd love to meet you all (again) soon :) Of course if that >> doesn't suit for any reason, don't worry about it! > Brill :) Coming to do some audio-related project? Let's have an LA beer. > > On 21/04/15 22:05, David Runge wrote: >> I'd be totally up for the Berlin group. > Happy to hear it -- will add you to the discussion list momentarily. > >> Is it possible to create an >> additional mailing list on this server? > The new list actually already exists can also be subscribed to (here > http://linuxaudio.berlin/mailman/listinfo/discuss) but emails sent to it > aren't arriving just yet as I haven't had time to fix the DNS records, > as we mentioned. The list and a more useful website than the current > holding page will be up and running soon. > >> C-base would be an awesome place I think! Let us know about what >> happens next! > I think C-Base is a good bet too (also as I'm a member). > > If you've read this far and want to come, would Wednesday May 6th work > for you? That would mean Harry could attend the first meeting too. > > Best, > > Sam. > > > _______________________________________________ > Linux-audio-user mailing list > Linux-audio-user(a)lists.linuxaudio.org > http://lists.linuxaudio.org/listinfo/linux-audio-user -- David Runge Köpenicker Straße 163 10997 Berlin +491781436915 http://www.sleepmap.de

10 years, 9 months

[LAD] Linux Audio Berlin user group

by Bruno Gola

Hello! There were lot's of Berliners at LAC 2015 and after talking to some of them we thought it would be nice to start a linux audio user group here in Berlin. This is an open call to all Berlin based Linux Audio users and developers! Let's meet, talk and share knowledge :) So far we have a mailing list[1] and an empty twitter account[2] (thanks to Sam :)) Our first meeting will probably be held at C-Base in the next weeks. We have no agenda yet, everyone is welcome, but me and Sam are more focused on electronic music stuff. Any suggestions on the date? [1] (as soon as the DNS starts working properly we send you the link to subscribe) [2] http://twitter.com/LAudioBerlin Cheers! -- Bruno Gola <brunogola(a)gmail.com> http://bgo.la/

10 years, 9 months

Re: [LAD] [LAU] GuitarSynth and polyphonic pitch estimation

by Gerald

Ok issues are fixed. I was sure that something like it exists, as aubio has it. I want to take this thing to be polyphonic, Ideally split up into polyphonic guitar to midi lv2 and maybe synth plugin that somehow apeals to guitarist (I know that vague, but i'm thinking of a synth thats piped through guitarixcab for that nice tube sound). But the emphasis will be the polyphonic audio (actually only guitar) to midi. The other stuff I wrote just not to have to deal with lv2 standard for now. And wavetables are easy and fun. I've done some research and the polyphonic pitch estimation falls under the wider topic called Blind Source Separation (BSS). Is there any expert on BSS here on the list? Gerald On 18.04.2015 14:55, Ralf Mardorf wrote: > Thank you, > > builds without issues on Arch Linux. Running it works too, but I didn't > test it. Jack audio IOs and Jack MIDI out are shown by QjackCtl. Are you > aware that Rakarrack provides a relatively good working monophonic MIDI > converter? > > JFTR I got those messages: > > $ ./GuitarSynth2 > jack_client_new: deprecated > Samplerate 44100 Buffersize 256 > QObject::connect: No such slot GSEngine::setInputGain(int) > QObject::connect: (sender name: 'InputVol') > QObject::connect: No such slot GSEngine::setOutputGain(int) > QObject::connect: (sender name: 'OutputVol') > > Regards, > Ralf > _______________________________________________ > Linux-audio-user mailing list > Linux-audio-user(a)lists.linuxaudio.org > http://lists.linuxaudio.org/listinfo/linux-audio-user

10 years, 10 months

[LAD] Android's 10 Millisecond Problem

by John Hammen

interesting article on Android's latency http://superpowered.com/androidaudiopathlatency/ via Hacker News news.ycombinator.com

10 years, 10 months

[LAD] Jack1 and Fl::lock

by Aurélien Leblond

Hi, I have been debugging an issue in Giada where sometimes it would get disconnected from Jack1 at start (not Jack2). During my debugging, I found that the JackSyncCallback method setup in Giada's jack_set_sync_callback uses Fl::lock which blocks the main process and Jack doesn't like that. I believe that's what the problem is (especially as after removing them I cannot reproduce it anymore)... Does anyone who knows Jack much better than I do (in fact I'm a real noob in that area) think I'm right in my investigation's finding? Thanks in advance, Aurélien

10 years, 10 months

[LAD] lac2015 photo gallery & videos

by Rui Nuno Capela

hi all, every year the post-lac nostalgic syndrome gets its toll... all the photos taken by this lousy photo-shooter of yours during the lac2015@jgu-mainz are now online: http://www.rncbc.org/lac2015 the even lousier videos taken from some of the linux sound night live acts are also delivered unedited and online: http://www.youtube.com/user/rncbchannel enjoy -- rncbc aka. Rui Nuno Capela

10 years, 10 months

[LAD] ambix vs JUCE, segfault

by Fernando Lopez-Lezcano

Anyone out there using ambix on Linux? I'm seeing various instabilities, for example trying out the converter standalone I get a segfault when connecting output ports, and it looks like the Jack JUCE component is doing some unaligned memory copies. Any hint on how to fix this? I get Ardour crashes if I try to use the converter LV2 plugin as well. See below for a trace of the standalone binary... Thanks for any help! -- Fernando #0 0x00007ffff507bdd6 in __memcpy_avx_unaligned () from /lib64/libc.so.6 #1 0x000000000069f6d1 in juce::FloatVectorOperations::copy(float*, float const*, int) () #2 0x000000000069ec87 in juce::AudioSampleBuffer::copyFrom(int, int, juce::AudioSampleBuffer const&, int, int, int) () #3 0x0000000000685452 in Ambix_converterAudioProcessor::processBlock(juce::AudioSampleBuffer&, juce::MidiBuffer&) () #4 0x00000000006e0e7d in juce::AudioProcessorPlayer::audioDeviceIOCallback(float const**, int, float**, int, int) () #5 0x000000000068e0b7 in juce::AudioDeviceManager::audioDeviceIOCallbackInt(float const**, int, float**, int, int) () #6 0x000000000069a694 in juce::JackAudioIODevice::processCallback(unsigned int, void*) () #7 0x00007ffff148c2fc in Jack::JackClient::CallProcessCallback() () from /lib64/libjack.so.0 #8 0x00007ffff148c204 in Jack::JackClient::ExecuteThread() () from /lib64/libjack.so.0 #9 0x00007ffff1489c0b in Jack::JackClient::Execute() () from /lib64/libjack.so.0 #10 0x00007ffff14aa2fc in Jack::JackPosixThread::ThreadHandler(void*) () from /lib64/libjack.so.0 #11 0x00007ffff5d3052a in start_thread () from /lib64/libpthread.so.0 #12 0x00007ffff503622d in clone () from /lib64/libc.so.6

10 years, 10 months

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Linux-audio-dev