0
votes
1answer
22 views

What is the “buffer size” (audio) and how to choose the best amount of buffer size?

I'm learning about jack. There's something called the "buffer size" and is measured in samples. What is it and how to choose a good buffer size?
1
vote
1answer
42 views

Digitech USB multi-effect with Jack

I'm newbie in Ubuntu and I'm having a hard time to work with jack audio. I have started to use Ardour and the problem is the Jack server apparently does not recognize my digitech rp500 pedalboard ...
4
votes
2answers
110 views

Play audio on Ubuntu Core!

I installed Ubuntu Core 14.04 AMD 64. Now I want to play an audio! What exactly should be installed?! (I got this message on webkitgtk: jack server is not running or cannot be started) I got this by ...
0
votes
0answers
28 views

When I open Rosegarden something strange happens

Okay. Now I'm listening to some music on audacity (an audio playback program). Then I open up Rosegarden. Audacity just "stops". I also think all other sounds don't come out any more. Anyway; I took ...
0
votes
1answer
51 views

How do you get rosegarden to play sound when playing a midi in it?

How do you get rosegarden to play sound when playing a midi in it? Do I need Jack running?
0
votes
1answer
100 views

Audio interface: how to use it as a sound card

I just bought Focusrite Scarlett 2i2 since I heard good things about it, especially of its good Linux compatibility. I connected it with my computer via the USB cable and sent its line output to my ...
0
votes
0answers
46 views

Cannot get jack & guitarix to work with my Line6 Toneport

OK here is my delima, I am pretty good with Ubuntu but when it comes to jack and using my guitar I have struggled with getting this to work! I am running Ubuntu 14.04 and want to use my Line 6 ...
0
votes
0answers
28 views

How to connect jack-keyboard to amsynth using JACK?

I want to connect the virtual jack-keyboard to amsynth, but I can't get any sound out of the notes. I have connected the applications using JACK like this: The output from amsynth to my speakers is ...
1
vote
1answer
63 views

how do I disable the headphone jack so sound will come out of the speakers?

I just installed ubuntu 12.04 (it still has windows 7 on it but I can't access it I don't think) on my moms older and pretty beat up laptop. the thing has a few problems like needing the keyboard ...
1
vote
0answers
45 views

Volume too low after connecting Pulseaudio to JACK

I followed the tutorial mentioned here but after the sound is much quieter even at 100%. I have loooked at the Pulseaudio volume controls and alsamixer and they are all also at 100.
0
votes
1answer
85 views

JACK turns off other sound

I have a midi keyboard connected to qSynth through jack, which works fine. But when I try to play other sound(from chrome, vlc, etc.) it is completely silent. How do I fix this?
0
votes
0answers
593 views

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 ...
0
votes
1answer
273 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 ...
1
vote
0answers
261 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) ...
0
votes
0answers
31 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) ...
1
vote
0answers
80 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 ...
2
votes
1answer
282 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. ...
0
votes
0answers
52 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 ...
0
votes
1answer
970 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 ...
1
vote
0answers
807 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 ...
0
votes
1answer
294 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 ...
0
votes
0answers
19 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?
4
votes
1answer
198 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, ...
3
votes
2answers
3k 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 ...
0
votes
1answer
843 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 ...
0
votes
1answer
580 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 ...
1
vote
0answers
223 views

Ubuntu freezes with Presonus FP10 plugged into JACK [closed]

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 ...
1
vote
1answer
569 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 ...
0
votes
3answers
381 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 ...
-1
votes
1answer
812 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. ...
1
vote
1answer
260 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 ...
1
vote
3answers
1k 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 ...
6
votes
2answers
1k 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 ...
1
vote
0answers
344 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
votes
1answer
549 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 ...
0
votes
1answer
537 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/
0
votes
1answer
351 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 ...
1
vote
2answers
2k 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 ...
0
votes
1answer
320 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 ...
2
votes
0answers
848 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 ...
3
votes
2answers
6k 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 ...
-1
votes
1answer
1k 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.
5
votes
1answer
553 views

Are there any tutorials for Linux-based audio production? [closed]

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 ...
1
vote
3answers
177 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 ...
2
votes
1answer
686 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
votes
3answers
795 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 ...
3
votes
0answers
577 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 ...
1
vote
2answers
2k 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.
2
votes
2answers
3k 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
votes
1answer
1k 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 ...