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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7 views

Ubuntu 20:04 Novation XioSynth External USB Audio Interface producing popping & clicking sounds on playback , Alsa usb driver suspect

I need help troubleshooting a Novation XioSynth external usb interface running under Ubuntu 20:04. I hear popping , clicking noises on playback of an audio file . This is not the problem with ...
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27 views

Error to starting QJackCTL

i am using Ubuntu-Studio (20.04) i installed it a few days ago on a CX216 notebook, and it gives me the following error when trying to start QjackCTL: PS: I had previously tried installing it on a ...
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ubuntustudio-controls jack and suspend//resume

After my computer resume, I have to pkill jack and start ubuntustudio controls and click on the button "start or restart jack" i am on my way to create a resume script (https://askubuntu.com/...
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Can't change sample rate Ubuntu Studio 20.04

I had a hibernation disaster and was forced to power cycle the laptop. It was still powered on, but the screen was blank. Nothing would wake it up. After power cycle, Carla only shows 44100 for the ...
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Since 2 days I get stuttering audio and xruns in Ubuntu Studio

It's fine for some minutes after reboot and then I get constant xruns and stuttering audio. I can provoke the issue by trying to record audio from the internal mic. I didn't manage to get any audio on ...
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27 views

What are the keys to *high-quality* sound and video recording?

Setup is a new system76 Darter laptop, running Ubuntu 20.04 LTS 64-bit; Focusrite Scarlett 2i2 audio interface and an AudioTechnica AT2020 condenser mic. I tried making a video recording of myself ...
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95 views

KXStudio Repositories are compatible with Ubuntu Studio?

I use Ubuntu Studio (http://ubuntustudio.org) but I added the KxStudio Repositories (https://kx.studio/Repositories) which are compatible with Ubuntu. Some applications work and install without ...
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39 views

UbuntuStdio jackd and Ardour scrambles all sound

I've been trying to get a simple recording setup working with Ardour 5 on UbuntuStudio 20.04. I first faced an issue with HDMI being the default and unable to capture through the mic port. I solved ...
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How to load QjackCtl with an specific CALF plugin configuration

I use Ubuntu Studio 20.04 LTS. I use QjackCtl and CALF Host plugins without problems at all. But, even the fact I got the QjackCtl app starts at system starting (automatic way), I cannot to get the ...
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79 views

Ubuntu Studio default PulseAudio output device

I just installed Ubuntu Studio Controls over Kubuntu 20.04 LTS. I use 2 sound devices: Input: Soundboard through USB (is setup as JACKs master) Output: Internal PCI soundcard I see that the new ...
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Mbox2 Mini audio interface missing

I've been given an Mbox2 Mini USB audio interface which I'm trying to get working with Guitarix on 20.04. QJackctl 'sees' the MIDI interface on the Mbox, but doesn't list the audio interface. I've ...
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I'm getting no audio signal from Scarlett 2i4 into Ardour 6 on Ubuntu Studio 20.04

I recently installed Ardour 6.0.0 (as a download from the Ardour website) in Kubuntu 20.04, using Ubuntu Studio Installer to add packages and configurations. I also have Mixbux32C-6.0.0 and Ardour 5....
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22 views

Can Ubuntu Studio Controls run alsa_out statement on jack server start?

I'm using Ubuntu Studio 20.04 Essentially I am trying to create a jack output to HDMI. While the HDMI device shows under 'Extra Devices' in Ubuntu Studio Controls, it does not appear in Carla when ...
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35 views

whysynth will not load in Ubuntu Studio 20.04

In Ubuntu Studio 20.04, new install, I am trying to learn Jack. In following a tutorial on the web, I was trying to run a DSSI plugin. This is what happened when I tried to run whysynth: cy@...
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Error initializing Jack audio server

I wanted to start jack server with the command sudo jackd -r -d alsa -r 44100 But I got the following errors : JACK server starting in non-realtime mode self-connect-mode is "Don't restrict self ...
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23 views

Pb during export in ardour while using Jackd2

I have been looking for hours without a good solution. So I have installed ubuntu studio 20.04 LTS, made all the updates. I run ardour (5.12.0) and jackd (1.9.12) through qjackctl (0.5.0). Is ...
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How to automatic get the best audio/video/graphics parameters to each individual configuration

I use UbuntuStudio 19.10. I wonder if there is some Linux native app to automatic get the best audio/video/graphics drivers parameters whatever the local (individual) hardware configuration is. I'm ...
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212 views

Package jack is not available on Ubuntu 20.04, is it not required?

I did a package search for jack. and find that it is not available on Ubuntu 20.04. Is it not required on Ubuntu 20.04 to connect audio devices? If required how can I backport?
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Jack and Audio control out of sync studio 19.10

After suffering many X runs in Mixbus 6 on Studio 19, I decided to take a look under the hood. In case you don't have it, Studio 19.10 has a thing called Audio controls, and this controls jack and ...
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15 views

I would like to reset Jack Audio to how it was during first install

Thank you in advance for any help, I am really struggling to not go to Windows. I recently purchased a Presonus Atom midi controller to use with Hydrogen. The first time I used it I managed to get ...
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18 views

How to avoid JACK noisy audio?

I use UbuntuStudio 19.10 with JACK Audio Connection Kit (Jack2 1.9.12). I have 3 computers: Two Desktops and one Laptop. I cannot to use JACK Audio Connection Kit in the Laptop (HP G5) because I get ...
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32 views

Is it possible to route a 'PulseAudio output device' to a virtual input device (that is recognized by the system)?

I'd like to process audio input via PulseEffects, which provides two output devices: PulseEffects(apps), PulseEffects(mic). Unfortunately, proprietary software is sometimes only able to use input ...
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121 views

Kubuntu 20.04. Ubuntu Studio installer freezes at “setting up jackd2”

The subject says it all. Wondering if there is a work around. Dell Vostro 3350 laptop.
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Line6 HX Stomp no sound with pulseaudio after Jack session

I can play music when i'm using pulseaudio. When i move to Jack (with pulseaudio sink), it still plays after selecting jack sink in pavucontrol. But when i stop Jack with qjackctl and select HX Stomp ...
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33 views

How to access audio sources like internal microphone in JACK or sound settings

I am using a Digital Audio Workstation (Bitwig) and I want to access the built-in microphone. but I can't find it regardless of what I try. Here is how the connection tab of qjackctl looks: So I can ...
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1answer
112 views

USB Microphone (webcam) and JACK, Ubuntu Studio

I have a slightly old webcam I'm using with my desktop. The camera seems to work fine, but I'm having issues with the mic. If I stop JACK and only use PulseAudio, it works fine, but as soon as I start ...
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90 views

Hdajackretask: cannot get internal speakers working without hijacking headphones

EDIT: solved, see below. I have installed Ubuntu 20.04 on an MSI laptop 'Leopard GP73-8RE' with a Realtek ALC1220 sound card. I have the following issues: by default, internal speakers do not work. ...
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24 views

Ubuntu Studio 19.10 - out of the box - Jack issue (choppy audio)

I just installed my Ubuntu Studio 19.10. I upgraded all things apart for the Kernel (as updating the kernel was crashing Jack completely). So my kernel right now is 5.3.0-18 I installed the software ...
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85 views

How to know if a sound card is capture only, playback only or capture and playback

Is there a command line i can apply to know if a sound card is capture only, playback only or "capture and playback" ? I have found pacmd with this following pulseaudio command line: pacmd list-...
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Is there a way to start Jack server when system detects that a USB Sound card is plugged in or add a usb headset to Jack server?

Questions are : how to run a script when a USB device is plugged in ? how to detect if it is a USB Sound card in order to be able to start jackd on this device ? how to detect if it is a USB Headset ...
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38 views

Why is PulseAudio Sink and Source not visible in Jack?

I am running UbuntuStudio 18.04 LTS and I have installed the latest version of pulseaudio-module-jack. However, when I open Jack I am not seeing either the Sink nor Source connections for PulseAudio. ...
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XRUN Callback errors running JackD since 19.10 update

Dell XPS 13, Ubuntu Studio 19.10 uname -a Linux ustudio 5.3.0-42-lowlatency #34-Ubuntu SMP PREEMPT Fri Feb 28 06:31:24 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux I updated this machine OS from previous ...
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95 views

Can't install libjack-jackd2-dev on Ubuntu 19.10 Eoan with KXStudio repo as it depends on the version of the Eoan repo

On my computer I have Jack and everything else installed from the KXStudio repo. I've been wanting to give audio development a try but when I try to install libjack-jackd2-dev, I get this output: ...
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19 views

JACKd mutes sound

Prestory: I'm trying to record webinars with "recordmydesktop". To record the sound properly I need to use jack, in order to allow recordmydesktop to choose right sound port. Problem: to start ...
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1answer
83 views

Ubuntu re-install introduces xruns with alsa and jack

I recently bought a new hard disc for my old laptop and installed ubuntu on that new hard disc. When running ubuntu from the new hard disc, I experience some issues with realtime audio that I didn't ...
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256 views

Using USB microphone with JACK audio

My recording/broadcast software, Mixxx, ordinarily picks up my USB microphone via the ALSA sound API, but I am now using JACK to route audio into it from Skype, so I switch to the Jack API. I need ...
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1answer
61 views

How can i run QJackCtl and the dafault divice audio at the same time?

i want to use Guitarix, using QJackCtl and alsa, and play some music in background, like backing tracks to practice. I was using Ubuntu Studio and worked just fine, but now i've install Ubuntu 18.04 ...
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106 views

Firewire Audiorecording: Motu 324 on Ubuntu Studio

So my setup is the following: Ubuntu Studio 19.10, Motu PCI-324 card, Motu 2408 and 1224 Interfaces So the Motu PCI 324 card is detected as an multimedia audio controller with the correct name. The ...
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152 views

Microphone Name Has Changed To USB PnP Sound Device

I'm running Ubuntu 18.04 with 5.3.0-22. I've been using this device for over a year, it's a Audio Technica AT2020-USB+ and until recently has always displayed as such. I produce content for Youtube ...
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74 views

How to startup init the Calf Plugin Pack for jack

I use Ubuntu Studio 19.10. I want to know how to get the Calf Plugin Pack for Jack runs when the system is starting up. I mean, in automatic way. Also, How to get Calf loads an specific ...
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1answer
70 views

Help restore audio for another user after pulseaudio is killed

When i kill a pulseaudio server, after it respawns, clients from other accounts are unable to access the pulseaudio unix domain socket file even though it is there. It only works after a reboot of ...
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39 views

How to record two microphones?

I am trying to record a usb headset's microphone and the monitor output to that headset, so far trying to open two recordings at the same time did not work (through python or Audacity), this comment ...
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1answer
68 views

How to remove software of unable to find?

I'm going to remove the software that is not installed as a package manager from Ubuntu 19.10. The software that I'm going to remove, is installed with Ardour software. The installation method is as ...
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24 views

Can we manipulate Jack Latency

I use Ubuntu Studio 19.10 and Jack Audio Connection Kit 1.9.12. I use it in three desktop computers, all of them with the following configuration: Motherboard = H61M-P31/W8 (MS7788) Processor = ...
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123 views

Jack Server Error

200 1.0 ALSA lib pcm.c:2564:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.rear ALSA lib pcm.c:2564:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.center_lfe ALSA lib pcm.c:2564:(snd_pcm_open_noupdate) ...
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1answer
66 views

Is there something like Jack Audio for Video management

I use Ubuntu Studio 19.10 and Jack Audio Connection Kit. I wonder if there is something like Jack Audio Connection Kit, but... To Video apps. I mean... Some server that lets us the same connections ...
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66 views

How to use Jack Audio Connection Kit to start/end an audio player software

I use Ubuntu Studio 19.10 and Jack Audio Connection Kit. I can use Jack (through qjackctl) with MuseScore to start/stop the MIDI playback of any MIDI song, with the internal MuseScore synthesizer and/...
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1answer
99 views

Record program and mic on two separate tracks with ffmpeg

For my radio show/podcast I'm recording my microphone and play music from a music player software. So far I've used audacity and it records both inputs into one track. This is hard for post-production ...
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18 views

Luppp only plays half of my WAV soundfile

I'm using OpenAv Luppp to work with some wav file loops. However, when I copy them in, they are only played half. I tried doubling the length of the audio and it is play as it should. Am I missing ...
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29 views

connect Native Instruments Komlete Audio 6 with Jack Audio?

Sorry for my bad English, but is it possible to integrate the Native Instruments Komlete Audio 6 in Jack Audio and how does it work? I've connected the interface and the MIDI ins/outs show up in the ...

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