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Questions tagged [jack]

JACK is a low-latency sound server, allowing multiple applications to connect to one audio device, and to share audio between themselves. Many Professional-grade programs (such as Hydrogen and Ardour) on Ubuntu utilize JACK for maximum hardware compatibility and performance.

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How can I use audacity to record audio output along with mic input?

My goal is to record 4-5 hours of audio for my long form podcast. I need it to be able to accept input from the mic and output from the laptop audio (so I can record conversation I have with other ...
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How to install WineASIO on Ubuntu 18.10?

Previous answers to this question incorporated the KXStudio ppa to install the wine-asio driver. However, according to the KXStudio website: NOTE: The KXStudio project is currently on a break, ...
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35 views

Built-in Speaker doesn't work after installing JACK

I am in Ubuntu 18.04.01 LTS with lowlatency kernel. Before I installed JACK, everything worked fine, both audio jack and built-in laptop's speakers. After I installed JACK, the audio jack worked fine ...
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42 views

Trying to send midi audio to Discord on Xubuntu

I have a casio keyboard which doubles as a midi controller, and I want its audio to go through a discord voice call. I don't have an audio-in jack, or else this would be trivial, so I'm going the usb ...
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1answer
54 views

Sound echoing, using Guitarix

I have a Focusrite solo hooked up to my guitar. I managed to get sound from it in my headphones. However It sounds like some weird reverb. The sound get a bit louder and then goes completely away and ...
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66 views

Why can't I use sound simultaneously in Bitwig and another program? Is Jack the problem?

I've recently installed Bitwig to make some music. It installed fine, but it initially didn't produce any sound through my speakers. It also gave an error saying that it couldn't find Jack (or ...
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24 views

Can I listen to a 44 KHz ASIO USB input on a 48 KHz soundcard?

I want to listen to the playback from a Korg ToneLab ST (guitar processor) connected over ASIO USB to my laptop. Normally I would do this using JACK. Problem: The ToneLab ST only supports 44 KHz, and ...
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45 views

Is there an audio mixer able to map any audio source to any output in the system?

The problem: I have always struggled in mixing live audio on Ubuntu, I have tried Jack and played with configurations, but I cannot achieve the "per app" modularity that I need. I am wondering if ...
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113 views

The Sound Card is Working, but not with MIDI

I bought a sound card recently. I can get sound of the computer, except when I plug in the MIDI connection. My goal is to connect with Zynaddsubfx. Here are some screenshots of my settings on Qjackctl....
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131 views

Couldn't connect MIDI controller on Ardour (Ubuntu 18.04 Ardour5)

I was followin the instrucions to setup Cadence (http://bcacciaaudio.com/2018/01/30/audio-music-production-in-linux-part-1-setting-up-jack-audio/) from this video (https://www.youtube.com/watch?v=...
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303 views

Sound not working on ubuntu 18.04 after some mess-up by me

I am new to ubuntu. I wanted to run some signal processing programs, so I installed jack. But it wasnt working. I messed something up while figuring things out. Now the audio doesnt work. I carried ...
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56 views

Video doesn't run when Jack Audio Connection Kit is on

As soon as I start JACK I can't watch any videos on google chrome. The videos are just buffering and directly when I turn JACK off JACK they start playing.
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89 views

What is QJackCtl? [closed]

Does Jack just make the audio better when I run it or how does it work? I have Ubuntu Studio 18.04.
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27 views

How do I add different effects on different instruments played by itimidity using rosegarden, jack-rack,qjackctl?

I will let play Timidity e.g. a piano with effect and another instrument e.g a guitar or even another piano with another effect (or none). Both instruments I will use in Rosegarden. Seemingly it is ...
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1answer
92 views

Not able to kill a jackdbus

I was trying to install jackd and the installation with apt gave two commands: jackd and jackdbus. I tried to execute jackdbus and it ran in the console. When I tried to terminate it by Ctrl+C, it is ...
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1answer
355 views

Routing Pulseaudio to JACK causes glitches

In these days I'm trying to play my guitar through my audio interface using guitarix and JACK and they work just fine. The issue arrives when I also want to play spotify or youtube in the meantime. I'...
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205 views

jackd does not recognize sound card (Ubuntu 14.04)

I cloned the hard drive from an existing machine onto an SSD to be put into a new machine (Dell Optiplex 7050 Tower). Whenever I try to start the JACK server, I get this error: 10:37:17.310 Patchbay ...
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1answer
372 views

How to change playback rate for use with JACK

I'm using jack2 on Ubuntu 16.04 LTS by installing jack, jack-tools and qjackctl from the official repositories. My USB sound connection feeds 44100 Hz into jack. Jack is configured (through qjackctl) ...
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42 views

How do I create virtual I/O with jack?

I've recently been trying to configure some audio/music performance setting. I've been messing around with internal I/O with Jack, hoping to find a way to create some virtual inputs and outputs ...
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16 views

does exist some software to edit the audio signal before it “arrives” to the speakers?

i need some software to cut all the audio signal from my pc above a certain frequence, do you know anything that would work? i'd like to use some audio server like pulse or jack but i can't find the ...
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1answer
104 views

Recording stereo mix from YouTube to Renoise

I am using Ubuntu Studio with Renoise working with sample based music. I can watch videos on YouTube in Chrome/Firefox and record the Stereo Mix straight into Audacity using "ALSA" as host and "pulse"...
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41 views

Headphones not detected on ASUS Eeebook E402S

Just installed Linux, and the headphones jack doesn't detect my headphones. They work fine on other computers. And if I go to AlsaMixer, I can get the headphones & the speakers to play at the same ...
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1answer
64 views

Jack does not see soundcard inputs

I am trying to record my guitar via an usb-soundcard (umc404), but Jack does not seem to know any inputs of my soundcard. I am using the UI of Ardour5 for starting Jack. @Linux-PC:~$ jack_lsp system:...
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1answer
3k views

usermod: cannot lock /etc/passwd

I get this massage: usermod: Permission denied. usermod: cannot lock /etc/passwd; try again later after trying to add myself to audio group by: usermod -a -G audio USERNAME. I would be grateful for ...
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1answer
363 views

Can't kill jackdbus auto, because it auto starts everytime

(edit) Topic closed: It wasn't a problem with jackdbus auto. In this thread I accidentally found a hint that, without me noticing, the server name changed itself from "(default)" to "voreingestellt" (,...
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649 views

/usr/bin/ld: cannot find -ljack

I seem to have some problems with cmake can't find jack, which Is need for portaudio. sudo apt-get install jack Reading package lists... Done Building dependency tree Reading state ...
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1answer
2k views

How to connect USB midi keyboard to qsynth using qjackctl?

I have following sound configuration for my PC-300 USB Midi keyboard on Ubuntu 17.04: $ cat /proc/asound/cards 0 [PCH ]: HDA-Intel - HDA Intel PCH HDA Intel PCH at ...
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419 views

JACK not working in fresh Ubuntu Studio 17.04 install

I recently installed Ubuntu Studio for the first time a few days ago. I did not get around to even testing any audio software on it for the first few days as I was troubleshooting other problems, ...
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1answer
299 views

Realtime equalizer?

What realtime equalizers are there that work with JACK? I have heard of Calf Studio Gear, but not sure if it will work or how good it is. Ones that won't work are: pulseaudio-equalizer, jackeq, jamin....
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353 views

Using JACK in virtual machine?

Is it possible to run JACK audio software in Ubuntu in a Virtualbox virtual machine? If it is, what software configurations would need to be done? Add user to audio group? Threadirqs added into ...
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310 views

Can't start QjackCtl

I use Ubuntu Studio 16.04 LTS. When I use an audio WineHQ app, with pulseaudio, I can't start QjackCtl. That app gives me the following error messages: "Jack audio server could not be started. ...
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1answer
79 views

Getting jack to work on Ubuntu

I am having an issue getting Jack to work. I do not know what outputs (listed under system/plaback[1-8] to use but I have patched to all of them and hear nothing. Is there a way to test audio or ...
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1answer
335 views

Ubuntu headphone jack not working

I run Ubuntu 16.04 LTS 64-bit on an Asus laptop and my headphone jack isn't working. I had Windows 10 before I had Ubuntu and every time I put in the headphones, I would have to plug it in and plug it ...
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1answer
2k views

Guitarix error failed to lock memory

Whenever I open QjackCtl start session and then open guitarix I get the following error [19:20:27] system init *** failed to lock memory: Cannot allocate memory [19:20:27] system init *** ...
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1answer
617 views

Ubuntu 16.04 on MacBook Pro: no sound with jackd, although ALSA is working

This is likely to be a MacBook specific question, as I do not face this problem on other notebooks (Dell). The case is the following: ALSA sound is working fine. mplayer plays mp3 test files with ...
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1k views

Ubuntu Studio 16.04.2 focusrite 2i4 on jack

I recently purchased a Scarlett focusrite 2i4 second generation, works very well out of the box with pulseaudio, however I cannot use it in jack, if I go into jackctl, the audio tab displays only two ...
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1answer
958 views

Why is Reaper not picking up signal from my MIDI controller?

I own a M-Audio Axiom 61 MIDI controller and I'm trying to configure with Reaper 5, which now has quite a stable pure Linux version. I am not using WINE at all. I followed everything in this ...
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1answer
3k views

JACK, PulseAudio and Firefox: Enable JACK for firefox in the near future

Firefox bug #1345661 was closed with "WONTFIX", which certainly will break my current setup in the near future (I play firefox sound through alsa_in:loopback->JACK). I have read that Firefox has JACK ...
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1answer
533 views

Pulseaudio not working with jack even after installing pulseaudio-module-jack

Using Ubuntu Studio 17.04, I have been trying to get pulseaudio to work with jack so I can play audio from a browser while using other applications such a pure data, and followed the tutorial here ...
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396 views

No default audio output via Jack - Zoom H5 as USB audio interface - Ubuntu 14.04

Before I start, I use the 4.11.2 low-latency kernel, realtime priority is enabled in /etc/security/limits.conf. Realtime user group etc. has been set up. Jack seems to work fine with ALSA. I use ...
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1answer
443 views

Recording from Line in jack

I have a usb audio card connected to my machine and I'm trying to record from "line in" but jackd seems to see it as a playback device even though I have it set as a capture device in alsa (see below) ...
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314 views

Playing audio using alsa/jack

I am currently using jackd with alsa using a headless setup To audio stream I am using darkice. I am starting jack using jackd -dalsa -d hw:1,0 output from aplay -l and arecord -l is **** List of ...
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1answer
576 views

Configuration and connections for Ardour using QJackCtl

After a couple changes no sound is coming in or out Ardour anymore, either through the USB interface nor through the laptop speakers. The changes that I remember: moving Ubuntu between disks ...
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1answer
448 views

How do I force pulseaudio to use stereo instead of surround sound?

I have the Audient iD14 audio interface. There are four input channels on it, and because of this pulseaudio thinks it's a 4.0 surround sound system when it's not. When playing audio, it is very ...
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2answers
740 views

pc shutdown when plugging in headphones

My laptop goes off when plugging in headphones. This only happens running on batteries. Windows 10 works ok so it's a linux related problem. Tested on Ubuntu, Elementary and now Apricity. I saw ...
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1answer
675 views

Installing Chuck, problem with alsa / JACK / pulse/

I typed "make", output was [chuck build]: please use one of the following configurations: make linux-alsa, make linux-jack, make linux-pulse, make osx, make osx-ub, make cygwin, or make win32 ...
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513 views

Routed pulse audio trhrough jack - usb interface does not appear anymore in qjackctl

Hello Ubuntu Community, I am trying to set up my system to work properly with effect and recording software. Up until now I always killed pulseaudio in order to connect a guitar via USB-Interface ...
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1answer
601 views

Jack server won't start

I have a problem when starting jack server, can you please help me find the solution? $ tail -f ~/.log/jack/jackdbus.log Sun Jan 8 18:55:14 2017: JACK server starting in realtime mode with priority ...
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1answer
711 views

JACK cannot start in realtime mode despite membership in audio group

My jack server is unable to start in realtime mode despite me being in the audio group. This is my setup: zegkljan@eddie:~$ lsb_release -r Release: 16.10 zegkljan@eddie:~$ echo $USER zegkljan ...
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2answers
2k views

qtjackctl ./configure returns JACK library not found

Trying to get qtjackctl up and running in just installed 16.04..... I've installed qt5 and JACK, then: $ cd qjackctl-0.4.3 $ ./configure" [...] configure: error: JACK library not found. I've done a ...