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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Jack - Setting up the interface and audio outputs with onboard soundcard- How?

I'm trying to set up Jack on my Ubuntu 14.04. I want to use my internal sound card (USB audio interface is sent back for repair) I have many options to choose for in the audio configuration, i tried ...
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1answer
68 views

Output analogue audio (via speakers) through “line in” jack

...So I've been using Ubuntu for about 6 months now since I switched from Windows. I've been searching for one specific feature that was missing for Ubuntu... In Windows I used to connect my ...
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26 views

Howto to assing a second audio automatically to jack or alsa?

i'm using a Guitar-Link (Behringer UCG102) over USB, a AKAI MPK25 Masterkeyboard and some Software to making music with jack, Ardour, Hydrogen, ZynAddSubFX... After plug my USB Behringer UUCG102 in ...
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69 views

Several issues when trying to start jack server.

Configured or not starting jack server always results in this crash on my machine: JACK server starting in realtime mode with priority 10 ERROR: control open "/dev/audio" (No such file or directory) ...
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19 views

Audio Router / Patchbay

I have a desktop that has a integrated surround sound jacks on the back, (the green/yellow/black/etc)... Anyway, I want to take one line input, and split it to at least two other (ideally stereo) ...
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51 views

Headphone jack physically broken and that automute the speakers after about 1~2 minute

I have a annoying problem in my Asus X52F laptop running raring Ubuntu. My headphones jack had physically broken last mount and after this event the audio output automute after 1 to 2 minute of ...
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1answer
84 views

Audio over ethernet

I am not sure whether this is the right place for asking this question, but anyway I would like to give it a try. I want to transport audio over ethernet. I want to do a simple experiment with it. ...
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73 views

Kubuntu studio. compositing settings and firefox, networkmanager popup issue

I'm moving over to an ubuntu variant after some time with linux mint. I'm using Ubuntu studio 13.10 with the kde desktop. I like kde and I am a musician, so the low latency kernel and preinstalled ...
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17 views

“Starting jack server… Cannot connect to server socket err = No such file or directory” [duplicate]

I am trying to start jack audio server. It works the first time after i restart but then it says "D-BUS: JACK server could not be started. Sorry" and i get a long message. Do i need to stop pulseaudio ...
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26 views

Sound disables completely when running Qsynth?

I'm having a lot of trouble trying to set up my M-Audio Keystation Mini 32 on my Ubuntu. I've read many articles on setting up Jack and then setting up Qsynth. When Launching Qsynth, my audio device ...
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1answer
122 views

Convert TuxGuitar Drum Track to Addictive Drums

The scenario: Use TuxGuitar in Ubuntu 12.04 to Compose a Guitar Track and a Drum (Percussion) Track Practice song on Guitar while listening to TuxGuitar play the track(s) through the Gervill MIDI ...
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1answer
463 views

No sound from external speakers/headphones (jack)

I've got constant problem, after instaling Ubuntu 13.10. I get no sound from the audio jack (speakers, headphones etc) but my internal speakers work right, playing sound as they should. Tried many ...
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1answer
48 views

Multiple kernels choices realtime or no realtime

I have a dell latitude d510 currently running xubuntu 13.04 and linux 3.8. I want this machine to host JACK processes together with EDIROL UA-25 during a live session and therefore, it needs an RT ...
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1answer
75 views

Jack and webcam videorecording

Is there any means to record sound and video from the webcam and microphone while jack is operating? Cheese stops recording when I start jack. VLC can output in jack and apparently record sound ...
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0answers
639 views

switch audio output from PA to jack, breaks audio on google-chrome

I occasionally switch audio output from the ubuntu default pulse-audio to jack. this has created several problems that I haven't managed to fix in the past (no sound from firefox ever again, then ...
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1answer
150 views

Error using fluidsynth

I installed fluidsynth following the instructions here: http://sourceforge.net/apps/trac/fluidsynth/wiki/Download ...which were just sudo apt-get install fluidsynth But get the following error when ...
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0answers
17 views

how can i route audio from rarack to a ardour?

I am a guitar player, and I use ardour to record my audio, and rarack as my effects panel. But I need a way to route the output sounds from rarack to ardour, and still have a audio output. Any ideas?
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2answers
445 views

No more sound after running Ardour

All the sound works perfect with all the applications on my system. But from the moment I launch Ardour, no more sound comes out from other application than Ardour. The easy way to get it back is to ...
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0answers
58 views

How do i get Jack to work?

Jack cannot connect to the server when I use ubuntu 13.04 on my laptop. I have no problems using Jack on my tower that runs Ubuntu 12, I use it for rakarrak and audacity. When I mess with the settings ...
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1answer
183 views

USB Audio card fails to initialize after turning it off and on again

I have a problem with an "E-MU Tracker Pre" USB audio card and Kubuntu. When I start the audio card for the first time since boot everything works fine, but after turning it off and on again, ...
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0answers
60 views

How to find out my output jack port, buffersize and samplerate?

I'm trying to play with fluxus, but I need to find out what parameters I need to send with this function: (start-audio "alsa_pcm:capture_1" 1024 44100) This is that help say: Starts up the audio ...
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39 views

Uninstalled jackd* and sound doesn't work

I used apt-get remove jackd* and it removed all the following packages: fxcyberjack tuxguitar-jack libjackrabbit-java liquidsoap-plugin-jack slv2-jack qjackctl jackmeter jacktrip jack-capture ...
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75 views

How do I fix my audio settings?

I am running Ubuntu 13.04 and downloaded the kxstudio repositories in order to install some audio plugins for Ardour 3.4. However, after I installed the kxstudio desktop by error there hasn't been any ...
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2answers
2k views

How to do screencasting (desktop recording) with high quality audio and video?

I have googled around and found all the usual solutions. None of them work for me. First of all, I want to make high quality recordings. Second, I use JACK audio (PulseAudio is completely ...
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35 views

Lightsnake crashes JACK

I got a lightsnake xlr to usb for my birthday, but every time I use it, after a short period of time (say 5 to 10 minutes) either jack crashes, or my mouse stops working until force reboot (logout ...
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24 views

Screencasting with Jack

I'd like to do some videos about jack but obviously this requires jack to run. I've downloaded RecordMyDesktop and told it to use the audio from jack, but then it won't allow me to record, just throws ...
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0answers
570 views

JACK error starting server using FireWire drivers

I've been trying to setup an Edirol FA-66 audio interface in Ubuntu 12.04 LTS, so that I can record sound coming from two microphones conected to it. The interface is connected to my computer using a ...
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0answers
414 views

audio trouble in xubuntu

First things first: I'm running Xubuntu 13.04 on a VM on my iMac. I'm trying to learn how to use Linux and iron out bugs, because I'm hoping to switch from Mac OS to Linux in the future (when my ...
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1answer
529 views

jackd does not work, aplay -l shows two instances of the same card (Ubuntu 13.04, HDMI audio only)

I'm on Ubuntu 13.04, using a ZaReason Zini, which as far as I can tell has no audio output other than its hdmi port. I'm trying to get the Clojure library Overtone working, and ran into the problem ...
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0answers
74 views

How do I get the Blue Snowball working with JACK and Ardour?

I have a Dell Inspiron 1545 running 13.04, and I recently purchased a Blue Snowball to work with my iMac and Ardour. I have been able to use it there with no problems. On my laptop, I can't seem to ...
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280 views

Jack not connecting

I installed Ubuntu Studio 13.04 yesterday and Jack was working fine. Today when I tried to start it it said could not connect JACK server as client- overall operation failed. In the message box I got ...
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1answer
535 views

13.04 hp laptop dv6t intel quad edition no headphone sound when plugged in

this is my alsa output http://www.alsa-project.org/db/?f=5dba3e3cc98914f6dce181eaa548769da5a0e6d8 I have followed this old solution that solved my problem for ubuntu 12.04, but in 13.04 the say ...
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0answers
188 views

Ubuntu freezes with Presonus FP10 plugged into JACK

I want to use my Presonus FP10 with jack and Ardour in Ubuntu 12.04 (64 bit). Here are some outputs: kane@tripkane:~$ ffado-test ListDevices Cannot create thread 1 Operation not permitted ...
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1answer
375 views

jackd server will not start exit code 225

Could anybody explain the errors I am receiving using jackd with qjackctl 13:25:50.333 ALSA connection graph change. 13:26:11.822 JACK is starting... 13:26:11.822 /usr/bin/jackd -r -dalsa -dhw:2 ...
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1answer
240 views

How do I connect an iPad (bluetooth) to JACK to Ardour?

I have an iPad that I connected to Ubuntu using bluetooth, and I'd like to be able to play sounds off it and have them routed into Ardour for recording. How do I connect the iPad to JACK (qjackctl), ...
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3answers
308 views

Acoustic Guitar how can be connected to Ubuntu and make it sound like Electrical guitar to make metal sounds?

I have a Acoustic Guitar, which has audio output jack is there any way i can connect that jack to Ubuntu microphone in and then use some existing software which will make the Guitar sound like metal ...
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132 views

unable to start Jackd

I am trying to start Jackd. I am a newbie. Below is the message which I get when attempting to connect jackd. Could you experts please check and advise what I must be doing wrong? Thanks in ...
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1answer
696 views

Python script to change the jack from input to output does not work in 13.04 [closed]

To change the jack from input to output for any computer or laptop I followed this question: How do I change which audio jacks are used for input and output? But the Python script does not work. ...
4
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1answer
6k views

Need external (usb)Sound card suggestions that work with Ubuntu 12.04

I don't know if this is the right place to ask about this, but I'll give it a try. I'm a linux user for a while now and I try to avoid opening Windows as much as possible. But for some things, I just ...
1
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1answer
176 views

How to use MIDI keyboard with seq24

I want to set some MIDI from a MIDI keyboard on a loop using a sequencer, and it seems like seq24 would be the simplest way to do this. However, seq24 doesn't show up in JACK connections, and I don't ...
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3answers
768 views

Playing a MIDI keyboard without JACK / how to use JACK and PulseAudio/ALSA

So, I havea MIDI keyboard but I'm not really motivated to play when I have to set up JACK and everything else just to get one sound out of it. The problem is that whenever I start JACK I can't play ...
8
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1answer
3k views

How do I switch between Pulseaudio and Jack on Ubuntu 12.04 LTS x86 Linux?

There are some applications on my Ubuntu 12.04 which requires Jack. Without Jack they just won't start, so I have to keep Jackd + (QjackCtl). Now the problem is jackd is not starting properly all the ...
1
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1answer
1k views

Unable to start jack server ? Service is available (org.jackaudio.service aka jackdbus).

Im trying to start jackd using QJackCtl but it fails with error messages Here is what I'm seeing - 14:36:48.194 Patchbay deactivated. 14:36:48.198 Statistics reset. 14:36:48.228 ALSA ...
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1answer
112 views

certain sounds don't work after I start JACK

I have ubuntu 12.10 on an acer aspire one 722 with ALSA & an ATI soundcard. So, i finally figured out how to start JACK; I type in jackd & qjackctl & jack_mixer and then open a new ...
6
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2answers
561 views

Guitarix amp simulator “Failed to allocate memory” jackd

Has anyone any experience with Guitarix ? I have Jack set up and working well with Rakarrak but it wont work with Guitarix It tells me "could not allocate memory" dont understand why. Am I missing ...
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0answers
288 views

JACK showing “Active” and I'm getting no sound [closed]

When I am starting JACK it is now showing "Active" instead of "Started" and I am getting no sound. I'm hoping there is a easy fix to this as I am kinda new. It shows the following in the messages ...
0
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1answer
412 views

too many xruns in jack

I'm getting a lot of xruns in jack--about one every .5 seconds. I have been told that this is a very computer specific problem that could have a lot of causes. Is there anyone here who could advise me ...
4
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2answers
4k views

12.10 Qjackctl problem

I've got problem when tried to connect my guitar to my computer, via line input. Auacity works good, and I can record what I play on my guitar (selecting from Preferences from where to record to ...
2
votes
1answer
6k views

Jack Audio ubuntu 12.10

I used to have Jack Server working with 10.10, 11.04, 11.10 but not 12.04 and now 12.10. I have installed jackd jackd2 qjackctl surfed many forums and even given advice of how to get jack working, ...
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1answer
408 views

no sound zynaddsubfx and JACK wont run

I am trying to run zynaddsubfx. When I start from the command line, I get this: http://paste.ubuntu.com/1378693/ When I start JACK I get this: http://paste.ubuntu.com/1378694/