JackAudio

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601 discussions

[Jack-Devel] Suddenly, Cakewalk won't connect to Jack

by lowkeyoutlaw

It was working two days ago. No system changes whatsoever. Cakewalk is still configured to receive audio from Jack. It just stopped working. Windows 10 x64 8gb Ram -- Sent from: http://jack-audio.10948.n7.nabble.com/Jackit-f3.html

7 years

[Jack-Devel] (no subject)

by otk _ts

hi i have to pc that i use at the same time but i have only 1 headset is it possible that i can use your app JACK combine with skype to somehow transfer all the sounds from this pc to the other ?

7 years

[Jack-Devel] [ANN] The QStuff* Pre-LAC2018 Release Frenzy Hotfix!

by Rui Nuno Capela

Avast ye lads! The Qstuff* Pre-LAC2018 [7] release frenzy continues... now with a hotfix! ** QjackCtl - JACK Audio Connection Kit Qt GUI Interface [1] ** QjackCtl 0.5.1 (pre-lac2018 hotfix) is out! QjackCtl is a(n ageing but still) simple Qt [2] application to control the JACK [3] sound server, for the Linux Audio infrastructure. Website: http://qjackctl.sourceforge.net https://qjackctl.sourceforge.io Project page: http://sourceforge.net/projects/qjackctl Downloads: http://sourceforge.net/projects/qjackctl/files - source tarball: http://download.sf.net/qjackctl/qjackctl-0.5.2.tar.gz - source package: http://download.sf.net/qjackctl/qjackctl-0.5.2-31.rncbc.suse.src.rpm - binary packages: http://download.sf.net/qjackctl/qjackctl-0.5.2-31.rncbc.suse.x86_64.rpm - AppImage packages: http://download.sf.net/qjackctl/qjackctl-0.5.2-3.x86_64.AppImage Git repos: https://git.code.sf.net/p/qjackctl/code https://github.com/rncbc/qjackctl.git https://gitlab.com/rncbc/qjackctl.git https://bitbucket.com/rncbc/qjackctl.git Change-log: - Respect ALSA [4] Sequencer support option also on Graph view. - Regression to new Graph node/ports sorting comparator; also fixed multiple and many port removals, most probably causing it to crash due to double-free/delete potential. - Fixed the automatic aggregation of new Graph client nodes that are split as either input or output only (ie. system, terminal, physical or otherwise non-duplex nodes). - Added View/Zoom Range mode option to Graph tool. License: QjackCtl [1] free, open-source Linux Audio [5] software, distributed under the terms of the GNU General Public License (GPL) version 2 or later [6]. References: [1] QjackCtl - A JACK Audio Connection Kit Qt GUI Interface http://qjackctl.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] LAC2018@c-base_Berlin, June 7–10 2018 https://lac.linuxaudio.org/2018/ See also: https://www.rncbc.org/drupal/node/1914 Enjoy && keep the fun! -- rncbc aka Rui Nuno Capela

7 years, 1 month

Re: [Jack-Devel] How to use jackd as a 'system-wide' server?

by Christophe Lohr

Le 16/05/2018 à 22:45, Chris Caudle a écrit : > I would set to the same sample rate that asterisk expects so that no > rate conversion is needed. Well, in fact Asterisk does not expect a specific sample rate. This depends of the codecs that have been negotiated with the peer for the ongoing call... By default, the sip trunk uses ilbc g729 gsm g723 ulaw codecs. The sampling rate can be 8kHz, 16kHz, or 13.3... Maybe I can tell jack to use 16kHz sampling rate, and let it convert when needed. >> Linux xaal-c 4.15.17-1-MANJARO #1 SMP PREEMPT Thu Apr 12 17:29:48 UTC >> 2018 x86_64 GNU/Linux > That has the low-latency configuration set (PREEMPT), but not the full > realtime patch (that would show PREEMPT-RT). Should be fine for most use, > but you may not be able to set to the very lowest latency settings. The > dummy backend uses 1024 sample period size by default. The use-case is about voice calls. Humans are rather tolerant about the latency of a phone call. isn't it? > What app do you have connected? The app is the speech-to-text Pocketsphinx (the code is slightly modified for my needs) Pocketsphinx uses pulseaudio as audio interface. So I need its jack source/sink plugin. So, there is no physical audio device in my system: the audio of the caller is to be passed to the STT recognition system via the audio server. Best regards Christophe

7 years, 1 month

[Jack-Devel] LAC2018 schedule and registration online!

by Linux Audio Conference

Dear all, we're happy to announce (and you might have noticed already), that the schedule for Linux Audio Conference 2018 is live! https://lac.linuxaudio.org/2018/pages/schedule Please note, that it will still be subject to slight changes! We have prepared a registration form for attendees: https://www.ak.tu-berlin.de/index.php?id=195758 Please sign up at your earliest convenience to let us know, if you're part of the conference. Also, we'd like to draw special attention to this year's keynote, which will be held by Gianfranco Ceccolini of MOD Devices: https://lac.linuxaudio.org/2018/pages/event/102/ Looking forward to seeing you in Berlin, -- Linux Audio Conference team

7 years, 1 month

[Jack-Devel] How to use jackd as a 'system-wide' server?

by Christophe Lohr

Hello, I'm looking for some advices for configuring my system. I plan to use the Jack plugin for the Asterisk PBX https://blog.russellbryant.net/2008/01/13/jack-interfaces-for-asterisk/ https://wiki.asterisk.org/wiki/display/AST/Asterisk+12+Application_JACK Since Asterisk is started as a daemon by systemd, I guess that I should also start Jackd as a system-wide server, and not within a user graphical session. In such a case, jackd does not rely on dbus, isn't it? So, how does jack clients may reach the jackd server? Is there some well known entry point, or discovering mechanisms (without dbus)? I'm lost. Any explanations are welcome ;-) Best regards Christophe

7 years, 1 month

Re: [Jack-Devel] Jackd doesn't install in Ubuntu 18.04

by Esteban Viveros

Thanks for the tip! I already filled a bug report in Ubuntu launchpad: https://bugs.launchpad.net/ubuntu/+source/jackd2/+bug/1769977 Cheers! Em ter, 8 de mai de 2018 16:09, Chris Caudle <chris(a)chriscaudle.org> escreveu: > On Tue, May 8, 2018 1:30 pm, Esteban Viveros wrote: > > That solution works, but I think better is fix Ubuntu 18.04 jackd2 > package > > to install automatically solving this libreadline6 dependency. > > Ubuntu creates their package, you should file a bug report with Ubuntu. > The jackd developers just create the original software, each distribution > creates their own installation packages. > > -- > Chris Caudle > > > -- www.estebanviveros.com

7 years, 1 month

[Jack-Devel] Jackd doesn't install in Ubuntu 18.04

by Esteban Viveros

Hi list! I don't be able to install jackd2 in new ubuntu 18.04 LTS. Os pacotes a seguir têm dependências desencontradas: jackd2 : Depende: libreadline6 (>= 6.0) mas não é instalável Recomenda: jackd2-firewire mas não será instalado How should I proceed..? Thanks -- www.estebanviveros.com

7 years, 1 month

[Jack-Devel] Will development on Jack for Windows be continuing ?

by Michael Z Freeman

Hi, I've found Jack on Windows to be very good. But its quite limited with only 4 channels. It's actually allowed me to setup, after many problems with other methods, a way of having vinyl timecode control into Mixxx through Jack with good latency (8.71ms, Mixxx recommended <10ms). I can also route a single stereo channel from Reaper into Mixxx Aux input. The setup runs very well and I've had no underuns or audio artefacts so far. So I'm actually very impressed with what Jack can do on Windows but the last release seems to have been in 2016 and I don't see any mention of adding further audio channels beyond the already existing 4. So are there plans for further releases ? Or maybe I'm missing any forked versions for windows that may be out there? Cheers and thanks for Jack ! Michael Z Freeman

7 years, 2 months

[Jack-Devel] Fwd: Issues with jack

by Shashank Sheela

Hi We have created a jack client which is similar to the simple client from your examples. There is some audio from the client is being sent. The issue is jack_ringbuffer_write function returns 0 but the ring buffer(all input parameters) which are sent are not 0. Note:-Client is Asterisk(using attached app_jack.c). Kindly help. Also Kindly tell us how to run jack in debug mode. Thanks & Regards Shashank

7 years, 2 months

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