Behringer UMC404HD stuttering / audio gaps
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- bluzee
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Re: Behringer UMC404HD stuttering / audio gaps
- Linuxmusician01
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Re: Behringer UMC404HD stuttering / audio gaps
For the time being you might want to test with a very, very new Linux distribution that had kernel 5.18 or newer.
BTW welcome to the forums and good luck experimenting!
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Re: Behringer UMC404HD stuttering / audio gaps
just to report the happy ending of the story.
I have tested as requested by Takashi the card on the following cases:
(1) x86_64 , 5.18.6 and 5.19-rc without quirks
(2) Arm64 , 5.18.6 and 5.19-rc without quirks
(3) x86_64 , 5.18.6 and 5.19-rc with quirks
(4) Arm64 , 5.18.6 and 5.19-rc with quirks
In (3) and (4) the card works without any stuttering. So we can say that the problem is resolved.
To use the quirks there are two ways:
1) recompile the kernel with the patch Takashi posted on the bug report (https://bugzilla.kernel.org/attachment. ... ction=diff)
applied on quirks.c (that enable quirks by default for UMC204HD and UMC404HD).
2) load the standard snd_usb_audio module with the option "quirk_flags=0x20010".
However, as already written in another post, this requires a very recent kernel. Not a big deal.
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Re: Behringer UMC404HD stuttering / audio gaps
- sunrat
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Re: Behringer UMC404HD stuttering / audio gaps
- Linuxmusician01
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Re: Behringer UMC404HD stuttering / audio gaps
Me too. The amount of proper USB class compliant audio devices is surprisingly small. Even if I was on Windows I wouldn't buy hardware that needs a driver.
The Behringer device now needs an option for it's kernel module (Alsa driver). Does anybody how can that be achieved automatically when you connect it?
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Re: Behringer UMC404HD stuttering / audio gaps
It needs an option right now, but the patch that enable the quirks by default has already been submitted and soon will be included in the mainline, making the option not required.The Behringer device now needs an option for it's kernel module (Alsa driver). Does anybody how can that be achieved automatically when you connect it?
Having said that, it is very easy to add the option at module load time; add this line:
options snd-usb-audio quirk_flags=0x20010
in /etc/modprobe.d/alsa-base.conf (or equivalent, you can also create the file if it does not exists).
Keep in mind that the kernel must be 5.18.6 or greater.
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Re: Behringer UMC404HD stuttering / audio gaps
Linuxmusician01 wrote: ↑Fri Jun 24, 2022 7:56 am
i could check it, thanks so much and sorry to answering so late!
@RiccardoZaniboni: There's a bug report on this problem here [edit: like @bluzee wrote just now above my post]. I'm afraid there's no other solution than to hope that the bug in the USB audio driver for this particular card will be fixed. It looks like on kernels 5.18 and up it might be fixed but I'm waiting for Luca Rusel's confirmation that it does in the bug report. See comment No. 61 in the bug report by Takashi Iwai about options to start the driver with.
For the time being you might want to test with a very, very new Linux distribution that had kernel 5.18 or newer.
BTW welcome to the forums and good luck experimenting!
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Re: Behringer UMC404HD stuttering / audio gaps
Linuxmusician01 wrote: ↑Fri Jun 24, 2022 7:56 am @RiccardoZaniboni: There's a bug report on this problem here [edit: like @bluzee wrote just now above my post]. I'm afraid there's no other solution than to hope that the bug in the USB audio driver for this particular card will be fixed. It looks like on kernels 5.18 and up it might be fixed but I'm waiting for Luca Rusel's confirmation that it does in the bug report. See comment No. 61 in the bug report by Takashi Iwai about options to start the driver with.
For the time being you might want to test with a very, very new Linux distribution that had kernel 5.18 or newer.
BTW welcome to the forums and good luck experimenting!
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Re: Behringer UMC404HD stuttering / audio gaps
Can other people confirm their devices don't stutter after 15+ minutes?
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Re: Behringer UMC404HD stuttering / audio gaps
I just picked up a UMC204HD and it runs amazing no issues whatsoever
Mind you I am using Liquorix Kernel on Debian Bullseye and my system is tweaked for sound.
uname -a
Linux LinuxDAW 6.0.0-7.1-liquorix-amd64 #1 ZEN SMP PREEMPT_DYNAMIC liquorix 6.0-2.1bullseye
Current at 64 samples buffer size with 1.3 ms block latency and no xruns, pops or skips.
Also got this 2nd hand at a pawn shop for 100$ Canadian taxes in. Really happy.
Re: Behringer UMC404HD stuttering / audio gaps
I'm playng on Ubuntu 20.04 - 21.04 & 22.04 (my several workstations).
Using Behringer UCM22 i had no issues at all.
However, I recommend switching to pipewar rather than keep wrangling between alsa, pulese and jack... that anyway, pipeware has a great compatibility layer and allows you to use any setting in backwards compatibility - it's automagic!
Re: Behringer UMC404HD stuttering / audio gaps
Hi!
This is my first post here. I've been reading this thread, because some months ago I bought UMC204HD. I expected it to work, becase that was my general impression reading about this card on the net. But it didn't on my Debian Bookworm (Switched to Pipewire with no PulseAudio installed).
After the last update/ugrade today, however:
HURRAY!
It seems to work. Though I haven't yet tested extensively.
Re: Behringer UMC404HD stuttering / audio gaps
I recently obtained a Behringer UMC404HD.
Although I haven't fully tested it, this device appears to be fully working for me.
My currently running platform is:
$ uname -a
Linux amnesia 6.0.0-0.deb11.6-amd64 #1 SMP PREEMPT_DYNAMIC Debian 6.0.12-1bpo11+1 (2022-12-19) x86_64 GNU/Linux
I have others but they are not running as I type.
OP reported issues with his device which he reported had the designation bcdDevice= 1.35
My device has the designation bcdDevice 1.12
This unit was purchased recently; old new stock may have been delivered.
Another item of possible interest:
My unit has the following additional designation:
bcdDFUVersion 1.10
So far, I am very happy with the Behringer UMC404HD