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Questions tagged [jackd]

16 questions
10
votes
3 answers

How do I play audio though jackd from console?

OSS | play ALSA | aplay PulseAudio | paplay JACK | ? What tool can I use to test if jackd is properly configured and make it play something?
Vi.
  • 17,755
2
votes
2 answers

recording and monitoring Line In on Debian using alsa/amixer(/jack?), SB Audigy2 card

NOTE!!!!!! I'm giving up on solving this (at least temporarily) Installed another Audigy 2 - with an external unit. 2 out of 3 inputs work, but they are named incorrectly and there're problems with level. I've read about similar problem someone's…
darkdiatel
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2
votes
1 answer

JACK on Windows: outputting to a virtual microphone?

I've been messing about with JACK as it seems like a good way to apply some EQ and whatnot for voice communications. I've gotten it to work, but I can't figure out how to make it output to Discord. Some googling basically tells me that Discord…
Jakob
  • 273
2
votes
2 answers

Moc in mac show error message

I install moc with port, but when try launche I get this error message. $mocp Running the server... Trying JACK... FATAL_ERROR: No valid sound driver FATAL_ERROR: Server exited any idea ? Many thanks.
juanpablo
  • 7,424
2
votes
1 answer

Capture audio output with alsa or similiar

I want to route (clone) my audio output (all sounds that are leaving the system through hdmi) to an virtual input device so I can capture the output (virtual audio cable). As said the output is hdmi and I'm using kodi for playback. I've searched a…
user685336
  • 21
1
vote
0 answers

qsynth not working with Jack on Ubuntu 22.04

I am trying to get qsynth to work on Ubuntu 22.04 (on a brand new computer). It always fails saying "Qsynth1: Failed to create the audio driver (jack)." I am running Qsynth - A fluidsynth Qt GUI Interface Version: 0.9.6 Using: Qt 5.15.3, FluidSynth…
philhanna
  • 11
1
vote
1 answer

Guitar Rig on Ubuntu with WINE, i/o not working

I'm trying to run Guitar Rig on Ubuntu with WINE using a Scarlett Focusrite 2i2 but can't seem to get the input signal to register. I've set up WINEASIO and jack and everything appears to be fine, but when I plug in, the input meter doesn't…
D Swartz
  • 11
  • 2
1
vote
1 answer

Simulating audio playback on headless linux server

We have a headless linux server (Debian 5) we use for running integration tests of our web-page code. Among these tests are ones implemented using Selenium, which practically simulates a user browsing our pages and clicking on things. One of these…
Ulas Turkmen
  • 13
1
vote
0 answers

JACK Audio not playing

I switched to JACK yesterday on my Arch computer to just play around with it and figure out its uses, but I came across something pretty peculiar with JACK. It simply won't play audio through my headphones. At first, I tried changing my output…
FrostBytes
  • 11
1
vote
1 answer

Easy to install JACK GUI for Mac OS X

Does anyone know of an easy to install GUI for JACK on Mac OS X?
Wuffers
  • 19,619
0
votes
1 answer

No audio output after starting qtractor in Fedora 20

I have installed qtractor to start experimenting with music composition/production. However, after starting the application, the computer seems to redirect its audio output and the other applications are unable to output audio as they were before.…
zml
  • 191
0
votes
1 answer

How to track some periodic system activity which hinders realtime performance

I'm running Jack2 with Pianoteq-5 on two core laptop running 64bit ubuntu-14.04. Such configurations are very sensitive to realtime performance because of low-latency requirements. At first I heard constant clicks which basically gone away when I…
Dmitry Vyal
  • 205
0
votes
1 answer

Using sox low pass filter with jack

How do I run sox with jack so that sox takes the input from jack, does something (in my case, a low pass filter) and outputs the processed stream to jack. sox foo.wav bar.wav lowp 1000.0 Will take an input wav and output to another wav, however I…
psandersen
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0
votes
0 answers

How to bridge two PulseAudio outputs?

I have bluetooth headphones which can't be connected to JackAudio so I thought that PulseAudio is able to duplicate output from integrated audio to A2DP headphones. The question is - is it possible? And if yes - how?
TheK0tYaRa
  • 11
0
votes
1 answer

Running Jackd on Ubuntu for my External Firewire Sound card

I'm running Ubuntu 10.04 and I have an external Sound card: Phonic Firefly 302. I've connected the device, installed Jackd, added the lines: @audio - rtprio 99 @audio - memlock 500000 @audio - nice -10 to /etc/security/limits.conf logged out,…
Asaf
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