Linux-audio-user April 2015

linux-audio-user@lists.linuxaudio.org

84 participants
67 discussions

[LAU] How to send MIDI clock or Jack Transport over local network?

by Bruno Ruviaro

Hi all, I'm a bit stuck trying to figure this out... I want to run SooperLooper in several laptops (in a laptop orchestra context), and be able to sync them. The laptops will be connected to a local network (wifi, or possibly via ethernet). >From what I read, I could try doing this either with a MIDI clock, or with Jack Transport (via NetJack? Though I don't need to send any audio to/from laptops). I've installed Rui's QmidiNet and QmidiCtl, but when I try to start them, I get an error message (setsockopt(IP_ADD_MEMBERSHIP): Invalid argument; socket(in): your kernel is probably missing multicast support. ). Are these the right tools for the job? How can I send a MIDI clock to several other laptops over a local network? Should I be trying NetJack instead? Any hints appreciated.... thanks! Bruno [*] I've ruled ou NetJack for Jack Transport sync, as it syncs all clients to one soundcard, where in my case each laptop will be playing with their own separate soundcard and speaker.

10 years, 8 months

[LAU] Alsa setup question

by hollundertee＠gmx.net

Hi there, I didn't have access to the LA-lists for a number of months now, and the list admin was not helpful. I subscribed with this crappy mail provider now and hope that it will work. Sorry for advertisement and other crap that might go along with it. I do have some trouble setting up alsa the way I want it. The machine is a laptop that I carry around and use at home. What I want to have: 1) If on the road, the internal card (PCH) should be the default. 2) If at home, the usb card (UA25) should be the default. I had this working rather reliably at some point, but it doesn't work anymore. I have the following in /etc/modprobe.d/alsa-base.conf to prevent race conditions on boot: options snd slots=snd_usb_audio,snd_hda_intel options snd_usb_audio index=0 options snd_hda_intel index=1 However, I experience weird things with /etc/asound.conf, it gets overwritten on every boot with garbage. This is what it looks like when I boot without external interface: defaults.ctl.card 1 defaults.pcm.card 1 defaults.pcm.card 1 defaults.pcm.card 1 defaults.pcm.card 1 defaults.pcm.card 1 When the external interface is plugged in on boot, it looks somewhat like this (off the top of my head): defaults.ctl.card 0 defaults.pcm.card 1 defaults.ctl.card 1 defaults.pcm.card 0 defaults.pcm.card 1 defaults.pcm.card 1 defaults.pcm.card 1 defaults.pcm.card 1 Obviously total garbage, and I have no idea what service tries to be smart here. Any ideas? At least ~/.asoundrc does not get overwritten. Also, is there a reliable way to do what I want? Right now I have this in my ~/.asoundrc, but it does not do what I want. I suspected that alsa would set the only device actually there as default, but it does not, so with this setup I have no sound on the road: defaults.ctl.card 0 defaults.pcm.card 0 Thanks in advance for your help. Regards, hollunder

10 years, 8 months

[LAU] [ANN] Vee One Suite 0.6.2 - A fifth beta release

by Rui Nuno Capela

Howdy, The 'Vee One Suite' of 'old-school' software instruments, aka. the 'gang of three' have bumped over another tiny notch: synthv1 [1], as one polyphonic synthesizer, samplv1 [2], a polyphonic sampler and drumkv1 [3], as one drum-kit sampler, are now being released to the masses. Again ;) There's no big audible changes, if any at all, yet this fifth beta release is rather a probale bug fix drumkv1 LV2 on Ardour. Anyway, it's all gone as follows: - Sample file path mapping has been fixed for LV2 plugin state restoration, which were preventing Ardour to reload any of the saved session or preset sample files in particular (re. drumkv1 only). - Custom knob/dial behavior mode options are now introduced: linear and angular (aka. radial) as far to avoid abrupt changes on first mouse click (still the default behavior). - Fixed for some strict tests for Qt4 vs. Qt5 configure builds. We're still available in dual form, as business as usual: - a pure stand-alone JACK [4] client with JACK-session, NSM [5] (Non Session management) and both JACK MIDI and ALSA [6] MIDI input support; - a LV2 [7] instrument plug-in. Enough to tell, the Vee One Suite are free and open-source Linux Audio software, distributed under the terms of the GNU General Public License (GPL) [8] version 2 or later. As always, have (lots of) fun :) **synthv1 - an old-school polyphonic synthesizer [1]** synthv1 0.6.2 (fifth official beta) is now released! synthv1 is an old-school all-digital 4-oscillator subtractive polyphonic synthesizer with stereo fx. LV2 URI: http://synthv1.sourceforge.net/lv2 website: http://synthv1.sourceforge.net downloads: http://sourceforge.net/projects/synthv1/files - source tarball: http://download.sourceforge.net/synthv1/synthv1-0.6.2.tar.gz - source package: http://download.sourceforge.net/synthv1/synthv1-0.6.2-21.rncbc.suse132.src.… - binary packages: http://download.sourceforge.net/synthv1/synthv1-0.6.2-21.rncbc.suse132.i586… http://download.sourceforge.net/synthv1/synthv1-0.6.2-21.rncbc.suse132.x86_… **samplv1 - an old-school polyphonic sampler [2]** samplv1 0.6.2 (fifth official beta) is now released! samplv1 is an old-school polyphonic sampler synthesizer with stereo fx. LV2 URI: http://samplv1.sourceforge.net/lv2 website: http://samplv1.sourceforge.net downloads: http://sourceforge.net/projects/samplv1/files - source tarball: http://download.sourceforge.net/samplv1/samplv1-0.6.2.tar.gz - source package: http://download.sourceforge.net/samplv1/samplv1-0.6.2-21.rncbc.suse132.src.… - binary packages: http://download.sourceforge.net/samplv1/samplv1-0.6.2-21.rncbc.suse132.i586… http://download.sourceforge.net/samplv1/samplv1-0.6.2-21.rncbc.suse132.x86_… **drumkv1 - an old-school drum-kit sampler [3]** drumkv1 0.6.2 (fifth official beta) is now released! drumkv1 is an old-school drum-kit sampler synthesizer with stereo fx. LV2 URI: http://drumkv1.sourceforge.net/lv2 website: http://drumkv1.sourceforge.net downloads: http://sourceforge.net/projects/drumkv1/files - source tarball: http://download.sourceforge.net/drumkv1/drumkv1-0.6.2.tar.gz - source package: http://download.sourceforge.net/drumkv1/drumkv1-0.6.2-17.rncbc.suse132.src.… - binary packages: http://download.sourceforge.net/drumkv1/drumkv1-0.6.2-17.rncbc.suse132.i586… http://download.sourceforge.net/drumkv1/drumkv1-0.6.2-17.rncbc.suse132.x86_… References: [1] synthv1 - an old-school polyphonic synthesizer http://synthv1.sourceforge.net/ [2] samplv1 - an old-school polyphonic sampler http://samplv1.sourceforge.net/ [3] drumkv1 - an old-school drum-kit sampler http://drumkv1.sourceforge.net/ [4] JACK Audio Connection Kit http://jackaudio.org/ [5] NSM, Non Session Management http://non.tuxfamily.org/nsm/ [6] ALSA, Advanced Linux Sound Architecture http://www.alsa-project.org/ [7] LV2, Audio Plugin Standard, the extensible successor of LADSPA http://lv2plug.in/ [8] GNU General Public License http://www.gnu.org/copyleft/gpl.html See also: http://www.rncbc.org/drupal/node/886 Enjoy && keep the fun ;) -- rncbc aka. Rui Nuno Capela

10 years, 8 months

[LAU] audio interface Terrasoniq Phase X-64 USB

by Nero

Ik krijg deze audio interface helaas niet aan de praat in Linux Studio. Hij wordt wel herkend met het commando: dmesg | grep usb. Wie heeft tips voor mij ?

10 years, 8 months

[LAU] zoom r16/r24

by Tritonas Insomnia

Any update on this? It would be nice to have working playback.

10 years, 8 months

[LAU] AlsaModularSynth - VCF resonant

by Aurélien Leblond

Hi all, A quick question here. AMS' VCF has two lowpass filter types - one with and one without resonance. But when I use the resonance parameters, they seem to affect only if I select the non-resonant lowpass. Is it a bug or do I badly misunderstand something? I have been looking for AMS' documentation on that VCF but no luck... Thanks in advance for any info! Aurélien

10 years, 8 months

[LAU] Building Ardour 4 - Gnu/Debian Wheezy.

by OvO OvO

Hello. Ardour 4 is out, as you surely know. As usual since 6 or 7 years, still no possibilities to make a payment without paypal.Some of us don't want to use paypal.So you can't have a «ready to run» binary if you don't pay (fair, it's free as free speech, not free beer) but you can't pay.And now a new feature for the «you don't pay» users, a demo version that turns silent after 10 minutes (nice feature, really ! Amazing ! so clever to spend time on that, than to add a payment system) So here is how i build from source on a Gnu/Debian Wheezy. Open the tar file. ./waf configure --with-backend=alsa,jack --no-jack-metadata --prefix=/6_years/people/asking/paypal/alternative/so_hard_to_do Adapt the options for you needs.You can see the options with : /waf configure --help |less Check the errors when you configure, and install the missing packages.Use your package manager accordingly to your Gnu/Linux distro.On Gnu/Debian, apt or aptitude.Add or remove packages if you already have them or not.The configure should tell you what you need/miss aptitude -R install libraptor2-dev libsndfile1-dev libgnomecanvas2-dev libsigc++-2.0-dev libcairo2-dev liblrdf0-dev libfreetype6-dev libfftw3-dev libglibmm-2.4-dev libcairomm-1.0-dev libpangomm-1.4-dev libatkmm-1.6-dev libart2.0-cil-dev libgnomecanvasmm-2.6-dev liblo-dev librasqal3-dev libogg-dev libflac-dev libvorbis-dev libsamplerate0-dev libaudio-dev liblv2dynparam1-dev libserd-dev libsord-dev libsratom-dev liblilv-dev libsuil-dev librubberband-dev vamp-plugin-sdk libaubio-dev libjack-dev liblilv-dev Once the configuration is done without errors : ./waf build -jX X=thread your cpu can handle. example : ./waf build -j8Wait a little, it's fast on recent CPU with cores. Then go to the directory you've declared in the configure --prefix= For example : cd 6_years/people/asking/paypal/alternative/so_hard_to_doYou'll find directories : bin etc lib share cd bin ./ardour4 Work perfectly on a Gnu/Debian Wheezy. Best.

10 years, 8 months

[LAU] Calf Envelope Filter = Ardour crash

by jonetsu＠teksavvy.com

Hello, I have compiled the Calf plugins from git, minutes ago. I use the 5-band equalizer and reverb w/o problems, using Ardour 3.5.403. I add the envelope filter to a track and immediately press play. Ardour vanishes instantly from the screen. Is this still a fftw bug ? Cheers.

10 years, 8 months

[LAU] Create A Negative of the sound

by Set Hallstrom

Hi, Is there any software that can create a negative of the sound? I'm thinking of taking an arbitrary frequency bandwith, pick a center and invert it, so that bass becomes high, and high becomes bass? I have the feeling this is an impossible task due to the nature of sound. But i dreamed it up last night, so it HAS to be possible somehow, if i can trust the comic books of the fifties containing TabletPC, space-rockets and wireless phones. :D In the dream, they would use some software similar to the ones used to remove noise from audio, where you see an abstract colour representation of the sound, and you can kindof "paint" out the undesired noise. Then they would just, flip the coulours arround. We first listened to a drum track (in the dream, yeah?), and the highhats would sound like kickdrum and the kickdrum soundet a bit like highhats. Then they applied it on the entire song track (still in a dream ok) and it sounded so good that my enthusiasm woke me up... Thankfull for any explanations and ideas, Yours dreamfully, -- Set Hallstrom AKA Sakrecoer http://sakrecoer.com

10 years, 8 months

[LAU] Create A Negative of the sound

by Set Hallstrom

10 years, 8 months

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Linux-audio-user April 2015