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 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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9 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
23 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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0answers
32 views

Audio output headphone jack not working on windows , but works fine on ubuntu 13.10 [closed]

I had this situation earlier with Ubuntu 12.04 , also i found the solution which worked perfectly fine but im no more able to look for that solution again, i cant find it anywhere. Problem is that my ...
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1answer
19 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
26 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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2answers
44 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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21 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
244 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. ...
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2answers
455 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 ...
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1answer
51 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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2answers
246 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 ...
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0answers
45 views

Obscure and annoying audio problem

Short version: jackd is not able to obtain the microphone for some reason and i'm out of ideas. The annoying thing is it was working and now without any deliberate changes it doesn't. To elaborate a ...
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1answer
653 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 ...
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0answers
241 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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68 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 ...
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161 views

Jack cannot aquire USB-soundcard

After upgrading 12.04 to a new kernel 3.2.0-36-lowlatency Jack fails to aquire my Mobile Pre USB Soundcard with the following messages. When starting with Qjackctl or Cadence: ERROR: cannot ...
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98 views

Guitarix not working in 12.10

Has anyone any experience with Guitarix ? I have Jack set up and working well with Rakarrak but it wont work with Guitarix even though it says it is connected to the Jack server !!! Am I missing ...
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116 views

no sound in my hp dv6 after installin ardour

i installed ubuntu on my HP dv-6 (with Nvidia GEFORCE GT 630M and beats sound) 1 months ago and sound support on my system was great and there was no problem (exept no support of beat driver). few ...
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0answers
151 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 ...
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1answer
110 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 ...
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1answer
1k views

How do I change which audio jacks are used for input and output?

I'm using a Realtek HD audio card built-in my motherboard. The Windows driver comes with a control panel that allows me to select which back panel jacks are used for what. So for example I can make ...
2
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1answer
1k 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
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1answer
3k 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
140 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/
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282 views

Help find correct alsa model for onboard sound (alc887?) that will work with jack and have correct mixer setup

I have a Gigabyte GA-MA74GMT-S2 motherboard. I am using Jack for sound - connected to ALSA. I am running Ubuntu 12.04. aplay -l reports card 0: SB [HDA ATI SB], device 0: ALC887 Analog [ALC887 ...
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1answer
212 views

Connect 4.1 speakers to Acer V3-571G with Ubuntu 12.10

I have the Acer Aspire V3-571G that has only 2 audio jack: 1 for headphone and 1 for microphone. Can I connect my Creative 4.1 speakers and have sound in all 5 channels? The problem is that speakers ...
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2answers
521 views

Using Jack audio and getting audio to play though headphones

I need to use Jack audio to prevent clicks but I'm having problems getting jack to play though my usb wireless g930 headphones. I'm using puredata and I can get my usb wireless g930 headphones to ...
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182 views

Getting four inputs from Pulseaudio and Jack using two sound cards

Hi I'm running on Ubuntu Studio 12.04 with two sound cards and I want Pulseaudio to run on the 7.1ch sound card and Jack to run on the on board sound card so I can have four inputs to route to Ardour ...
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89 views

There is a big problem with Jack ! feedback noise when increase volume, cracking sounds etc [closed]

I've used jack with guitarix and rakarrack without any problems but seems that in the latest versions of Ubuntu there is a problem. At first jack is not working, I made some configurations and then ...
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1answer
160 views

What changed with timidity, alsa and jack in 11.10?

I (just) upgraded from 11.4 to 11.10 and noticed some differences in the behavior of timidity. I used to (11.4) exectute >timidity midifile.midi without running jackd, and thus using alsa (or ...
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183 views

microphones no longer working in jackd/qjackctl (11.10)

I had qjackctl working at one point, but it has mysteriously stopped. All I want to do (so far) is pipe microphone -> headphones through jackd. I know my mic and headphones are working correctly, as ...
2
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0answers
639 views

removing pulseaudio, moving to jack

I have installed jack because I want to use the LADSPA plugins available, in jackrack, for realtime audio processing. (I couldn't find any way to use them with pulseaudio) After much effort, I ...
2
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1answer
2k views

Unable to start jack (Cannot allocate memory)

I want to use PulseAudio on top of jack, so I've turned pulse off and now want to start jack using qjackctl. However, this results in the following error log: 22:14:15.933 Patch Panel disabled ...
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1answer
191 views

QJackCtl - Alsa Unknown driver

Here's my problem : I just have installed QJackCtl on my Ubuntu 12.04 and when I start Jack I got this issue : 12:01:22.769 /usr/local/bin/jackd -dalsa -dhw:0 -r44100 -p1024 -n3 -i1 -o2 Cannot ...
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2answers
1k views

Step-by-step to run a midi keyboard input device? 12.04

I have a Korg Nanokey, and I'd like to make it produce sound in ubuntu. I've read that means I should be using Rosegarden, and that Rosegarden uses JACK, but does not install it. (Although checking ...
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2answers
1k views

12.04 Ubuntu studio PREEMPT_RT kernel options

My audio processing needs require a preempt_rt kernel. I roughly followed the guide: https://wiki.ubuntu.com/KernelTeam/GitKernelBuild with a little help from: ...
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1answer
582 views

No sound on Rakarrack 6.0.1

I just installed Rakarrack and get no audio. I'm using Ubuntu 12.04 LTS. Help is appreciated.
2
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1answer
310 views

Are there any tutorials for Linux-based audio production?

I have been searching for a while for Linux based audio production tutorials. All I can find are tool based tutorials. For example I found tutorials on how to use jack, ardour, lmms ..etc. What I need ...
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3answers
151 views

What can I do about the fglrx driver interfering with jackd?

The jack-audio-connection-kit needs to run in realtime mode and my system is configured accordingly. I'm using the fglxr driver. With Unity-2d everything is fine. With Unity-3d, jack-clients ...
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0answers
67 views

I can't get din to work, though JACK sees my hardware correctly, and my audio is functioning [closed]

I've installed everything in ubuntustudio-audio as a precaution, so I'm unsure of where next to proceed. din is a digital synth. It's supposed to work with JACK, but it's not making any sounds, ...
2
votes
1answer
486 views

QjackCtrl audio server starting. Focusrite Saffire PRO40 card start and no sound

QjackCtrl server is starting. Then the FW Active LED of the soundcard turn on. I try listenning to a Youtube video and I get no output sound. The card connection setup is working on Windows. Setup: ...
4
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3answers
539 views

Record audio from Skype on VPS?

I have impossible task to do! Going crazy! On fresh Ubuntu server 10.04. install, via SSH I've installed desktop and VNC server. Then Skype. Problem is that Ubuntu is VPS! And it don't have physical ...
2
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0answers
309 views

How do I get a MOTU 828 MK II working? [closed]

I recently installed Ubuntu 11.10, which is proving to be a nice OS - it's pretty fun to learn. I was wondering how to get Ubuntu to recognize my MOTU 828 Mk II firewire audio DSP (?) unit. It's ...
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2answers
488 views

Running jackd on startup / replacing PulseAudio

How can I replace PulseAudio with Jack? I want to start jackd on startup either during boot or during logon instead of PulseAudio.
1
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1answer
1k views

MIDI to VMPK to QSynth to Audio?

I'm currently using Jack (qjackctl) + VMPK + qSynth to try to simply jam a little bit on my keyboard on my Linux machine. I can see all of the inputs and outputs, but I'm still not getting any sound. ...
4
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1answer
419 views

How can I use Jack for all my system sounds?

I have a firewire soundcard (Phonic FireFly808 [not the "808-U" version!]) which I would like to use as my standard soundcard. From what I found out, it seems like only ffado could get this firewire ...
1
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1answer
663 views

JackD mutes PulseAudio

I use rakarrack for guitar effects and I want to listen mp3 playback (Banshee etc.) and midi (Tuxguitar etc.). But when I start rakarack it starts JACK and JACK mutes all other sound sources except ...
1
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0answers
179 views

Jackd does not work with winesasio and FL Studio [closed]

I'm trying to get FL Studio to work using wineasio and jackd, but so far: no luck. The problem lies with jackd and pulseaudio. I can start jackd and have pulseaudio piped through it, but no sound ...
0
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1answer
630 views

FA-66 sound card sometimes cuts out and stops working, causing me to restart Jack

I have setup Ubuntu 11.04 to use Jack and PulseAudio just to get sound working. It was a little tough, but I got it to work. Now as I use my computer - like Banshee, Youtube, or VLC - the FA-66 will ...

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