JackAudio

jackaudio@lists.linuxaudio.org

1 participants
595 discussions

by Rodrigo Yanez

Hi, I hope I'm not spamming. I'm new to this mailing list and I don't know how to view previous mails to check if what I'm going to ask is already on the mailing list. I would like to learn how to use JackAudio from the command line. I would appreciate if you could let me know if there is a tutorial to familiarize myself with JackAudio commands. Thank you very much. Rodrigo

1 year, 4 months

Re: [Jackaudio] Noise when using JACK in Linux Mint

by Patrick Pouget

White noise is, in general, due to format mismatch. I mean data types, sample rate, number of channels etc... I can see 2 causes * Jack should be queried for the format by the application. If you have the problem with many, it is not the case * jack relay on drivers that return wrong informations or no information or a default information. Do you have a "layer" between the drivers (alsa oss etc...) and jack? On Mon, 2022-11-28 at 09:14 +0100, Patrick Pouget wrote: > White noise is, in general, due to format mismatch. I mean data > types, sample rate, number of channels etc... > > I can see 2 causes > * Jack should be queried for the format by the application. If you > have the problem with many, it is not the case > * jack relay on drivers that return wrong informations or no > information or a default information. Do you have a "layer" between > the drivers (alsa oss etc...) and jack? > > > > On Mon, 2022-11-28 at 09:03 +0500, Fabio G wrote: > > Hello to all!undefined > > > > I am experimenting with audio production under Linux Mint 20.3 > > (based on Ubuntu 20.04). I managed to install a low latency kernel, > > then I have installed JACK, and Qsynth, following the steps > > described in this tutorial: > > http://www.tedfelix.com/linux/linux-midi.html > > > > Everything seems to work fine if I use Qsynth and pulseaudio: I use > > the vmpk simple virtual keyboard, and I have good output sound. > > I have also tested JACK, as suggested in the tutorial using > > > > > $ jack-play test.wav > > > > and I hear the right clean output. > > However, when I tell Qsynth to use JACK, I have a lot of noise. > > When I hit a key I have "white noise" for few milliseconds instead > > of the key sound, and only when it fades I have a little bit of the > > note that I was supposed to play. > > I have the same "white noise" problem is I use Rose Garden. > > I have tried to change the sample rate and the frames/period > > settings, and also the Timeout, in JACK, but the problem stays the > > same. > > > > Thank you in advance for any help you can give. > > > > Best, > > > > Fabio > > _______________________________________________ > > JackAudio mailing list > > JackAudio(a)lists.linuxaudio.org > > https://lists.linuxaudio.org/listinfo/jackaudio >

1 year, 4 months

Noise when using JACK in Linux Mint

by Fabio G

Hello to all!<https://sound.stackexchange.com/posts/51899/timeline> I am experimenting with audio production under Linux Mint 20.3 (based on Ubuntu 20.04). I managed to install a low latency kernel, then I have installed JACK, and Qsynth, following the steps described in this tutorial: <http://www.tedfelix.com/linux/linux-midi.html> http://www.tedfelix.com/linux/linux-midi.html <http://www.tedfelix.com/linux/linux-midi.html>Everything seems to work fine if I use Qsynth and pulseaudio: I use the vmpk simple virtual keyboard, and I have good output sound. I have also tested JACK, as suggested in the tutorial using $ jack-play test.wav and I hear the right clean output. However, when I tell Qsynth to use JACK, I have a lot of noise. When I hit a key I have "white noise" for few milliseconds instead of the key sound, and only when it fades I have a little bit of the note that I was supposed to play. I have the same "white noise" problem is I use Rose Garden. I have tried to change the sample rate and the frames/period settings, and also the Timeout, in JACK, but the problem stays the same. Thank you in advance for any help you can give. Best, Fabio

1 year, 4 months

Audio routing.

by Dennis Wage

Group, I have a sound card with 8 in 10 out. And Windows as you know groups them in stereo pairs. I want to as simply as possible route audio from ins 1(pair 1 L), 2(pair 1 R), 3(pair 2 L) etc. etc. to a stereo pair out. Something that is persistent with a reboot. So that a mono in is routed to both the outputs of a stereo pair. Is this possible with JackAudio? *--* *Dennis M. Wage (W9BOQ)* *2020 Grammy winner for Best Tradition Blues.* <https://www.grammy.com/grammys/artists/dennis-wage/252054> *901 Chandler Ave* *Plover, WI 54467-2270* *(615) 310-4242* *http://overdubs.net* <http://overdubs.net>

1 year, 6 months

jackaudio and github

by Patrick Pouget

Hi all I placed a software, using jackaudio, on Github. Github provides a function to compile, in order to know if nothing is missing. The problem is I have a crash on the include <jack/jack.h> How to fix that problem Thank you Regards Patrick

1 year, 7 months

qjackctl

by Harmonicwave

To whom this may concern: When i start jack i see system and sooper looper int he graph but when i go to to use MainStage 3 i'm not able to access the qjack in the preferences/ audio , so that Main Stage 3 will not show in the qjack graph to hook up to sooner looper. does anyone know why this is happening? Thanks Miguel Sent with [Proton Mail](https://proton.me/) secure email.

1 year, 7 months

Compatibility info (macOS 12.2.1 - mbp M1 chip)

by Marco Costa

Hi there, I’ve been trying to make jack works on my new system without success. After some digging, it is still not very clear to me if the latest versions of Jack and Qjackctl are supposed to work on mac 12.2.1 (MacBook Pro with M1 chip). Could anyone confirm that there are or may be compatibility issues? Thank you.

1 year, 8 months

Re: [Jackaudio] Mon March 1, 2:30 pm PST JACK clinic, JackTrip meeting, OS X JACK uninstaller

by Marco Costa

Hi, I’m Marco and I’ve recently joined the jack audio mailing list. In reading the archive searching for possible solutions to some issues I’m having, I’ve read your mail in which you mention a beta jackaudio uninstaller. I’d like to do a clean reinstall of jack, would you mind sharing? Thank you, Marco

1 year, 8 months

Jack request

by ramby ingé

Hi people at Jack audio, I'm a jack user and i really love it. This is an awesomes piece of software! I'm not a developper. I'm using it on windows (7 and 10) with different DAWS. I'm using the Version: 0.3.13.10 and it is working well. There is only one thing that i would really be able to do. It would be awesome if we could change the buffer in the settings without having to restart the server (then the DAW) like how we can do it with our soundcard in our DAWS. I hope that this is not hard to do. If it is i will probably use Jack as my audio driver with Pro tools. Thanks in advance Biram

1 year, 9 months

pkg-config not recognizing JACK2 on NixOS

by Jeffrey Brown

Hi, I'd like to use JACK to send MIDI messages from a Haskell program I wrote[1] to a DAW. I downloaded the JACK library for Haskell[2]. When I try to open a REPL to interactively run some of the library's example code, some requirements fail to build, and `cabal` (a Haskell build tool) reports that `pkg-config` cannot find the an appropriate version of JACK: jeff@jbb-hp17:jack$ cabal repl Build profile: -w ghc-9.0.2 -O1 In order, the following will be built (use -v for more details): - jack-0.7.2 (lib) (first run) Configuring library for jack-0.7.2.. cabal: The pkg-config package 'jack' version >=0.118 && <1 || >=1.9.8 && <2 is required but it could not be found. But my version of JACK is well above 1.9.8 and well below 2: jeff@jbb-hp17:jack$ jackd --version jackdmp version 1.9.19 tmpdir /dev/shm protocol 9 It might matter that I'm running NixOS. I use JACK all the time, via QJackCtl. Many thanks, Jeff [1] https://github.com/JeffreyBenjaminBrown/montevideo [2] https://hackage.haskell.org/package/jack -- Jeff Brown | Jeffrey Benjamin Brown LinkedIn <https://www.linkedin.com/in/jeffreybenjaminbrown> | Github <https://github.com/jeffreybenjaminbrown> | Twitter <https://twitter.com/carelogic> | Facebook <https://www.facebook.com/mejeff.younotjeff>

1 year, 11 months

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