10 Feb
2023
10 Feb
'23
3:30 p.m.
I had very different results with pipewire from what happy describes.
I'm using it on debian testing with very low latency. On my system it
performs way better than anything I could achieve with jack2. I'm using
a behringer usb audio device, usb midi controllers and midi together
with a daw. Latency down to a few ms, while I could never get anything
below 10ms with jackd before.
Am 2023-02-10 06:47, schrieb Happy:
The only advantage I see for PW, is that I can have 2
USB (18i20)
audio interface , USB camera mics and connect them all together. That
worked.
But I had to use lot of latency and hardly can prevent XRUNS. For
conusmer audio it seems nice, not for DAWs and low latency.
I will try Ubutnu 22.10 later on.
When I talked to PW devs, they mentions it does not replace ALSA,
since ALSA are the low lever device drivers. though it hooks into ASLA
timer for timing synchronization
It does however provide a JACK and Pulseaudio replacement.
Thanks
-----Original Message-----
From: Stephan Auerochs <stephan.auerochs(a)bosurus.de>
To: jackaudio(a)lists.linuxaudio.org
Subject: Re: [Jackaudio] Distorted sound after upgrade to Kubuntu
22.10
Date: Mon, 30 Jan 2023 20:08:18 +0100
Hello,
I'm running Siduction (Linux), so I can't speak especially for Ubuntu.
I'm using a DAW within a virtual machine (QEMU/KVM), connecting audio
with jack-net to the Siduction host, where jackd (jack daemon) is
running.
After Siduction introduced Pipewire years ago, my experience was that
Pipewire grabs all (USB) ALSA devices, preventing jackd from accessing
them directly. Pipewire only offers a jack API for jack clients, but
it couldn't work with the jack-net client. My configuration was not
working anymore, because jackd (and qjackctrl) was not involved
anymore.
So I decided to deinstall pipewire on the Siduction host, and run
jackd as the main sound server again; within qjackctrl I configured
jackd to access my Focusrite 8i6 directly. Additionally I installed
pulseaudio-jack for non-jack-capable applications (alternative is to
run pipewire on top of jackd, but I have not tried).
This works still as my low latency, distortion-free audio solution.
Not sure what the advantages of pipewire are; seems to aim on a
multimedia (video?) all-in-one solution, but as far as it is not
network capable it's useless for me. Also I'm not sure if the Pipewire
team sets high priority on the jack API in the future.
If jackd is still available on Ubuntu, deinstallation of Pipewire may
be a (radical) solution.
Regards
On 30.01.23 16:39, Happy wrote:
--
Freundliche Grüsse
Daniel Savi
Nidelbadstr. 6
8038 Zürich
Hello.
Have you tried to changed the settings in qjackctrl, like buffer
size and such ?
Ubuntu is transitioning to Pipewire , artialy in 22.04 and full in
22.10.
Pipewire replaces the legacy jack (emulation)
Maybe it is a reason maybe not.
I am, very worried to change to 22.10. my focusrite 18i20 Gen 1
suddenly has started to get many XRUN after 8 yeats w/o changing the
hardware.
But it seems many people are happy with Pipewire. (even it may not
have tested much with externa hardware)
One of the reason I have not transisition to 22.10 from 22.04
Perhaps you can post on
https://linuxmusicians.com/viewforum.php?f=6&sid=d4592ee0b470220fdb6dfd…
to find solutions.
Thanks
-----Original Message-----
From: Ulrich Grün <ulrich.gruen(a)gmail.com>
To: jackaudio(a)lists.linuxaudio.org
Subject: [Jackaudio] Distorted sound after upgrade to Kubuntu 22.10
Date: Tue, 3 Jan 2023 12:44:52 +0100
Dear list members,
I'm quite new to Jack and just subscribed to this mailing list.
First, let me say a warm Hello to everyone!
Now to my problem.
Since I upgraded Kubuntu 20.04 LTS to 22.04 (and also to 22.10), the
sound I hear is distorted. Even when the sound source is very quiet,
the sound is distorted. As if somewhere, the input signal is way too
high.
I tried a few different settings in the Jack Audio Connection Kit,
at no avail.
Of course, I did ample research at Brother Google and found
seemingly similar problems. The advice that was given there, was
either not applicable to my situation, or was far beyond my skills
to actually digg that far into my Linux OS (I'm a chemistry teacher
at a Dutch high school, not an IT professional ;-).
Thus made me decide to ask for help here!
My soundcard is a Focusrite Scarlett 2i2, The version of the
software is the following:
jackd: 5+nmu1; jackd2 & libjack-jackd2-0: 1.9.21; qjackctl: 0.9.7-1
Below that is the output of the Messages in QjackCtl. Maybe and
hopefully, that some skilled eye finds some occurring error ...
Thanks in advance !!!
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