Linux-audio-user

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20642 discussions

Berlin Linux Audio meeting @ c-base 2019-05-14

by Daniel Swärd

Hi all. As usual the second Tuesday of the month is upon us. I'll be in the mainhall from 20:00. See you there. Cheers /Daniel PS Yes, I did copy-paste from the previous mail... DS

6 years, 3 months

Behringer UMC1820 suddenly stopped working with JACK2 (after re-install)

by nik＠parkellipsen.de

Hi, i recently re-installed Arch Linux on my laptop after a disk swap and suddenly JACK2 (non-dbus) doesn't run with my Behringer UMC1820 anymore. I kept the old system up-to-date and it was working perfectly well. Also, I don't remember making any special adjustments to get it up and running. My other cheapo Behringer (UCA202) still works fine, so i assume it's not a general USB audio problem ? The device is still shown in alsamixer, levels can be set. A friend tried it on her Mac and it worked there, so I assume the interface itself is still running. uname -a says: Linux atarashii 5.0.13-arch1-1-ARCH #1 SMP PREEMPT Sun May 5 18:05:41 UTC 2019 x86_64 GNU/Linux I usually start jack2 like this (works with the other device): jackd -P98 -dalsa -dhw:2 -p512 -n3 -o2 -r44100 The error message is: ALSA: use 3 periods for capture ALSA: final selected sample format for playback: 24bit little-endian in 3bytes format ALSA: cannot set channel count to 2 for playback ALSA: cannot configure playback channel Released audio card Audio2 audio_reservation_finish Cannot initialize driver JackServer::Open failed with -1 Failed to open server Has anybody experiences something similar ? I don't have any idea right now ... Best, Niklas

6 years, 3 months

Re: [LAU] JACK, Qjackctl, and ffado

by Mac

I sent a long email about testing Ubuntu Studios Controls. Since it got dumped because it was too long thanks to inserting screen captures, I then wrote a fixed version and the subject changed creating broken thread. I'll paraphrase (and I hope this reply is going to the original thread. Sorry.) Short version: - Ubuntu Studio Controls doesn't know about ffado. - I attempted to force things from the command line, but was unsuccessful. In fact, I'm not sure I can even get Ubuntu Studo Controls to do nothing. - Ubuntu Studio Controls also has a problem with retaining the selections for bridging, etc. If you check them off, then logout/login or reboot they are back to default (checked). The last time I logged in and started Carla, there were 12 in/out's for the AF12 and 2 captures for the on board sound card... At first during my messing around I could only get the long form of the port names to show up (i.e. 00148605c4409ac_Unknown_out, 00148605c4409ac_Unknown0_out, etc.) and not human readable names like capture_1, etc. But, something I did is now causing the human readable version to appear...don't what caused this and not sure if it will be there when I boot tomorrow...

6 years, 3 months

Re: [LAU] Request to mailing list Linux-audio-user rejected

by Mac

I've been doing some experiments with the system I have. The system: the mobo has onboard 8 channels (front panel L/R, rear panel L/R, rear panel line out L/R, rear panel sub L/R) and a Echo AF12 on firewire. At this point UBS Controls can select between the on board and the AF12 (I assume when the AF12 is selected and 12 channels appear in Carla or Patchage this is via ALSA) Observations: - alsamixer shows both onboard and AF12 - when AF12 is selected in alsamixer, alsamixer shows nothing - when on board is selected in alsamixer, alsamixer shows the 8 outputs - when selected in UBS Controls the associated ports are shown in Carla/Patchage - when on board is selected, 8 ports are shown, but only the front panel L/R produce any signal when connected in Carla/Patchage (all 8 are unmuted and at 0db in alsamixer) anybody know how to get the other 6 outputs working? - when AF12 is selected 12 channels are shown in Carla/Patchage With on board selected and players/plugins started and connected between player and front panel L/R all appears good and sounds ok. With AF12 selected and same player/plugin combo is made sounds good, except occasionally REALLY nasty high volume (as in speaker/ear damaging loud) digital burst happens. In order to test with just ffado I attempted to adapt a script I use on another pc to force only jack. The adapted part shown below: #!/bin/bash set -x killall -9 jackd jackdbus #jack_control ds alsa dps capture none dps playback none jack_control ds firewire dps capture none dps playback none #jack_control dps device hw:PCH jack_control dps rate 48000 jack_control dps nperiods 2 jack_control dps period 1024 jack_control start pactl unload-module module-udev-detect pactl unload-module module-alsa-card pactl unload-module module-jackdbus-detect pactl load-module module-jack-sink client_name=PulseOut channels=2 connect=no pactl load-module module-jack-source client_name=PulseIn channels=2 connect=no set +x exit This results in the channels of the AF12 being listed like this: firewire_pcm 00148605c4409ac_Unknown_out 00148605c4409ac_Unknown0_out 00148605c4409ac_Unknown1_out 00148605c4409ac_Unknown2_out 00148605c4409ac_Unknown3_out 00148605c4409ac_Unknown4_out 00148605c4409ac_Unknown5_out 00148605c4409ac_Unknown6_out 00148605c4409ac_Unknown7_out 00148605c4409ac_Unknown8_out 00148605c4409ac_Unknown9_out 00148605c4409ac_Unknown10_out 00148605c4409ac_Unknown11_out Where Unknown_out is the 1st channel of the AF12, Unknown0_out is the 2nd channel, etc. (Unknown11_out is the midi port) I do not know how to get human readable names as can be done in Qjack... Anybody know how to do this from the command line? Or set the name of the device to something other than firewire_pcm? So far I have NOT been able to duplicate the crazy noise spikes I was getting with alsa running the AF12.

6 years, 3 months

JACK, Qjackctl, and ffado

by Mac

Oh, and while alsamixer will allow the selection of the AF12, alsamixer then says the AF12 has no controls. So, to control the gains and such one has to figure out how to stop the alsa control of the AF12 and then start ffado to make any changes?

6 years, 3 months

JACK, Qjackctl, and ffado

by Mac

Len said: "It does not use ffado at all but rather the built in ALSA firewire module stack. This means, do not try to use ffado-mixer, bad things will happen. Use alsamixer or the qasmixer (which is GUI based) instead. So far, anyone I have talked to that has had problems with fw devices in the past few years, since fw was added to ALSA, has had those problems because they tried to use ffado bits without first removing the alsa bits. So I am wondering how many people have firewire devices that have found the alsa drivers for firewire, when used correctly, don't work for them." So, I admit to some confusion... Until yesterday (when I added the back port) after boot the sound system would show a 12 channel device. At that point I would start Qjack. It's configuration is set to start ffado with 12 channels. I then hit start in Qjack and then 12 in/out ports would show in Qjack > Connect. If I understand your comment, this would be running the alsa stack AND the ffado stack against the firewire device? (In this case an AF12.) So, now if I start JACK from the UBS Controls, it is using only the ALSA stack? And the ports that show up in, say Patchage, are ALSA ports? So, when I'm doing "pro" audio with UBS I don't need ffado now? And, if so, how does one, for instance, send firmware updates to a fw device? (not that I expect to do that with an AF12...they stopped making it. :( ) Mac

6 years, 3 months

Re: [LAU] JACK, Qjackctl, and ffado

by Susanne Schneider

do a "ps -A" in commandline ... think you need to kill jackdbus, too... > Date: Wed, 17 Apr 2019 15:49:18 -0400 > From: Mac <macdroid53(a)gmail.com> > To: linux-audio-user <linux-audio-user(a)lists.linuxaudio.org> > Subject: [LAU] JACK, Qjackctl, and ffado > Message-ID: > <CAHEqMkFrwpL7=sdF5CY4kh=kvSbwTk6peNT=MetAj3yjEXjerQ(a)mail.gmail.com> > Content-Type: text/plain; charset="utf-8" > > Hi, > > I have a system running UbuntuStudio 18.04 and I use ffado with jack for my > firewire AF12. > > When I boot the system and start things up with Qjackctl all is good. > (Qjackctl runs a script that starts Calf plugins, zita-lrx, some meters, > and connects up a variety of things the the ins/outs that ffado presents. > Most notably the output of zita-lrx forming a tri-amp system. The input to > zita-lrx coming from the Calf plugins. ) > > All works fine, as long as I have no occasion to hit the stop button in > Qjackctl. It runs another script that shuts down Calf, zita-lrx, and meters. > > But, if I attempt to start things again, it says it can't start. > > If I kill the ffado-dbus-server, then start ffado mixer (this apparently > starts the ffado-dbus-server), then open Qjackctl again it's already > running. At this point, if I run the script mentioned above, all is good > again. > > Does this imply that I'm not shutting down correctly and leaving ffado in > some zombie state? > > Is there a proper shutdown that won't cause this? >

6 years, 3 months

JACK, Qjackctl, and ffado

by Mac

Hi, I have a system running UbuntuStudio 18.04 and I use ffado with jack for my firewire AF12. When I boot the system and start things up with Qjackctl all is good. (Qjackctl runs a script that starts Calf plugins, zita-lrx, some meters, and connects up a variety of things the the ins/outs that ffado presents. Most notably the output of zita-lrx forming a tri-amp system. The input to zita-lrx coming from the Calf plugins. ) All works fine, as long as I have no occasion to hit the stop button in Qjackctl. It runs another script that shuts down Calf, zita-lrx, and meters. But, if I attempt to start things again, it says it can't start. If I kill the ffado-dbus-server, then start ffado mixer (this apparently starts the ffado-dbus-server), then open Qjackctl again it's already running. At this point, if I run the script mentioned above, all is good again. Does this imply that I'm not shutting down correctly and leaving ffado in some zombie state? Is there a proper shutdown that won't cause this?

6 years, 3 months

[ANN] Qtractor 0.9.7 - Spring-Break'19 Release batch #3

by Rui Nuno Capela

Hi there, trice again, Like some post-LAC2019 [8] frenzy hangover, here comes the third and final 'batch-of-one': Qtractor 0.9.7 (spring-break'19) is out! The changes for this seasonal release are as follows: - Re-defined all main application UNIX signal handling. - Fixed possible crash in drawing clips while rare loop-recording/takes situations. - Main window stabilizing is now kind of asynchronous re. menus, tools and status bars. - MIDI Controller's Latch mode attribute on tracks and plugins are now properly saved/loaded as meant to be. Description: Qtractor [1] is an audio/MIDI multi-track sequencer application written in C++ with the Qt framework [2]. 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.org https://qtractor.sourceforge.io http://qtractor.sourceforge.net Project page: https://sourceforge.net/projects/qtractor Downloads: https://sourceforge.net/projects/qtractor/files - source tarball: https://download.sf.net/qtractor/qtractor-0.9.7.tar.gz - source package (openSUSE Tubleweed): https://download.sf.net/qtractor/qtractor-0.9.7-42.rncbc.suse.src.rpm - binary package (openSUSE Tubleweed): https://download.sf.net/qtractor/qtractor-0.9.7-42.rncbc.suse.x86_64.rpm - AppImage [7] packages: https://download.sf.net/qtractor/qtractor-0.9.7-12.x86_64.AppImage Git repos: https://git.code.sf.net/p/qtractor/code https://github.com/rncbc/qtractor.git https://gitlab.com/rncbc/qtractor.git https://bitbucket.org/rncbc/qtractor.git Wiki (help still wanted!): https://sourceforge.net/p/qtractor/wiki/ - static rendering: http://qtractor.org/doc http://qtractor.sourceforge.net/doc https://qtractor.sourceforge.io/doc - user manual & how-to's: http://download.sf.net/qtractor/qtractor-manual-and-howtos.epub http://download.sf.net/qtractor/qtractor-manual-and-howtos.pdf License: Qtractor [1] is free, open-source Linux Audio [5] software, distributed under the terms of the GNU General Public License (GPL [6]) version 2 or later. Trice again, References: [1] Qtractor - An audio/MIDI multi-track sequencer http://qtractor.org https://qtractor.sourceforge.io http://qtractor.sourceforge.net [2] Qt framework, C++ class library and tools for cross-platform application and UI development http://qt.io/ [3] JACK Audio Connection Kit http://jackaudio.org [4] ALSA, Advanced Linux Sound Architecture http://www.alsa-project.org/ [5] Linux Audio consortium of libre software for audio-related work http://linuxaudio.org [6] GPL - GNU General Public License http://www.gnu.org/copyleft/gpl.html [7] AppImage, Linux apps that run anywhere http://appimage.org/ [8] LAC2019@CCRMA-Stanford, March 22–26 2019 https://lac.linuxaudio.org/2019/ See also: https://www.rncbc.org/drupal/node/1998 Enjoy && Please, have (lots of) fun. -- rncbc aka Rui Nuno Capela

6 years, 3 months

[ANN] Vee One Suite 0.9.7 - Spring-Break'19 Release batch #2

by Rui Nuno Capela

Wholly cheers! The 'Vee One Suite' of 'old-school' software instruments are here again and now released for the second QStuff* Spring-Break'19 batch post-LAC2019 [12] frenzy: * synthv1 0.9.7 [1] * samplv1 0.9.7 [2] * drumkv1 0.9.7 [3] * padthv1 0.9.7 [4] All still delivered in dual form: - a pure stand-alone JACK client with JACK-session [5], NSM (Non Session management [6]) and both JACK MIDI and ALSA MIDI [7] input support; - a LV2 instrument plug-in [8]. Changes are that there are quite a few fixes since previous releases: - Corrected sample offset and loop range internal reset (samplv1 [2] and drumkv1 [3] only). - All audio input now get through without being processed by any or whole effects stage anymore. - Re-defined all JACK stand-alone client application UNIX signal handling. - Probable fix to sample offset and loop range changes across native UI and loading and saving state. (samplv1 [2] and drumkv1 [3] only). 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. Make the fun great again! **synthv1 - an old-school polyphonic synthesizer [1] ** synthv1 0.9.7 (spring-break'19) is out! 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 downloads: http://sourceforge.net/projects/synthv1/files - source tarball: http://download.sf.net/synthv1/synthv1-0.9.7.tar.gz - source package: http://download.sf.net/synthv1/synthv1-0.9.7-44.rncbc.suse.src.rpm - binary package (openSUSE Tumbleweed): http://download.sf.net/synthv1/synthv1-0.9.7-44.rncbc.suse.x86_84.rpm - AppImage [9] package (JACK stand-alone only): http://download.sf.net/synthv1/synthv1-0.9.7-11.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 0.9.7 (spring-break'19) is out! 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 downloads: http://sourceforge.net/projects/samplv1/files - source tarball: http://download.sf.net/samplv1/samplv1-0.9.7.tar.gz - source package: http://download.sf.net/samplv1/samplv1-0.9.7-44.rncbc.suse.src.rpm - binary package (openSUSE Tumbleweed): http://download.sf.net/samplv1/samplv1-0.9.7-44.rncbc.suse.x86_84.rpm - AppImage [9] package (JACK stand-alone only): http://download.sf.net/samplv1/samplv1-0.9.7-11.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 0.9.7 (spring-break'19) is out! 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 downloads: http://sourceforge.net/projects/drumkv1/files - source tarball: http://download.sf.net/drumkv1/drumkv1-0.9.7.tar.gz - source package: http://download.sf.net/drumkv1/drumkv1-0.9.7-40.rncbc.suse.src.rpm - binary package (openSUSE Tumbleweed): http://download.sf.net/drumkv1/drumkv1-0.9.7-40.rncbc.suse.x86_84.rpm - AppImage [9] package (JACK stand-alone only): http://download.sf.net/drumkv1/drumkv1-0.9.7-11.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 0.9.7 (spring-break'19) is out! 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 downloads: http://sourceforge.net/projects/padthv1/files - source tarball: http://download.sf.net/padthv1/padthv1-0.9.7.tar.gz - source package: http://download.sf.net/padthv1/padthv1-0.9.7-11.rncbc.suse.src.rpm - binary package (openSUSE Tumbleweed): http://download.sf.net/padthv1/padthv1-0.9.7-11.rncbc.suse.x86_84.rpm - AppImage [9] package (JACK stand-alone only): http://download.sf.net/padthv1/padthv1-0.9.7-11.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 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] padthv1 - an old-school polyphonic additive synthesizer http://padthv1.sourceforge.net/ [5] JACK Audio Connection Kit http://jackaudio.org/ [6] NSM, Non Session Management http://non.tuxfamily.org/nsm/ [7] ALSA, Advanced Linux Sound Architecture http://www.alsa-project.org/ [8] LV2, Audio Plugin Standard, the extensible successor of LADSPA http://lv2plug.in/ [9] AppImage, Linux apps that run anywhere http://appimage.org/ [10] Linux Audio consortium of libre software for audio-related work http://linuxaudio.org [11] GNU General Public License http://www.gnu.org/copyleft/gpl.html [12] LAC2019@CCRMA-Stanford, March 22–26 2019 https://lac.linuxaudio.org/2019/ See also: https://www.rncbc.org/drupal/node/1997 Enjoy. -- rncbc aka. Rui Nuno Capela

6 years, 4 months

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Linux-audio-user