Hello.
Hope you can play this, let me know.
http://achromatopsie.fr/LAU/Lau-Test.mkv
So i got it too.
I've tried on an older computer, with some Intel HDA on motherboard
sound chipset, the same.
So the card is not guilty.
As i said previously, i got some Xrun - 1 per hour, depending on how i
set the Buffer size, sometimes called frames/period - even when the
computer is idling doing nothing.
I've tried several Kernel, build my own, try to change settings for the
USB kernel options and other things, always the same. So i gave up.
Not clicks on my voice over recording so...i can live with that.
I suspect some USB kernel's driver problem, or Alsa trouble with USB. Or
motherboard USB. But all of this is beyond my knowledge or skills.
For the record here :
Linux 4.13.4-2017-10-18-amd-64 #1 SMP PREEMPT
MOTU 624 with 1.3.1+81 connected with USB 3 port.
lau@reader:~$ lsusb
Bus 002 Device 002: ID 07fd:0005 Mark of the Unicorn
lau@reader:~$ lsusb -t
Bus 02.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/2p, 5000M
|__ Port 1: Dev 2, If 0, Class=Audio, Driver=snd-usb-audio, 5000M
|__ Port 1: Dev 2, If 1, Class=Audio, Driver=snd-usb-audio, 5000M
|__ Port 1: Dev 2, If 2, Class=Audio, Driver=snd-usb-audio, 5000M
Aaah computers !
Merry Christmas !
Le 2017-12-22 05:33, georgnk a écrit :
Hi guys,
I tried debian live dvd 9.3
And I did a fast test after selecting my sound card's outputs with:
Speaker-test -t sine -f 880
The same periodic clicks appear after a few seconds. I also played with
sample rates, buffer and period sizes without success.
I didn't use jack,I don't think this is a jack issue. I don't think is
a
linux distribution issue.
I am curious if others have the same problem,I don't have another
computer
to test. Whenever you have the time to test please let me know the
results.
Thanks
list-2 wrote
hi.
Hmm, last resort to try an older firmware, i'm not sure about this,
but
i would try to «factory reset» the card, either with the web
interface,
or the front LCD panel. Maybe (MAYBE) it fallback on the Initial
shipping version.
Keep in mind that the problem you have may not coming from the card
itself, but, pulseaudio, jack etc.
Aaah computers....
On 2017-12-21 14:36, georgnk wrote:
Hello,
When I tried to upload the file with older firmwares I couldn't. The
warning
was that I was trying to upload an out of dated firmware. Is there
any
way
to downgrade?
For sure the web interface using windows Os doesn't show something
new
such
as bios menu...Except I am blind
Cheers
list-2 wrote
Hello.
i still use an old firmware. As i do not really trust - yet - MOTU
with
Gnu/Linux.
Keep in mind that if this AVB series products work under Gnu/Linux,
i
think it's more a side effect from USB audio Class compliant than a
real
desire from MOTU (it has to work for Apple/Ipad).
As this new v1.3.2+102 firmware shows that you have nothing new in
the
web interface ( no bios menu added with other options ? ) it may do
something for Windows/Apple Os's users ?!
On 2017-12-21 02:35, georgnk wrote:
Hi.
Yes the firmware is v1.3.2+102 (520 is for the avb)
I don't know either what the bios menu is doing. I can only find
bios
if I
press the select button from my interface and shows some
info,nothing
more.
If you test it one day please let me know if you also have this
(minor)
issue.
Have nice holidays. Cheers!
list-2 wrote
Hello.
I am away from my computer with the MOTU 624 AVB for the holidays.
I'll
make a try when i'll be back.
But i've just checked the firmware pages of MOTU's web site and :
v1.3.2+520 (Release Date 2017-12-13)
A new one as been added few days ago. I've never tried this one.
Is the the firmware you running your card with ?
The change log says :
Added Bios menu
Hmm i'm really wonder what it does, and if it break anything with
Gnu/Linux Os.
Cheers !
On 2017-12-20 02:41, georgnk wrote:
Hello thank you for the reply.
The clicks are periodic.well,not strictly periodic but almost
every
two
seconds. I have tried your suggestions but didn't change
something.
What I have also discovered is that the clicks are not passing
through
my
software. Testing a sine wave and using a spectrum analysis in
real
time,
sndpeek, clicks don't show up there. It seems they are coming
directly
to my
monitors (headphones)
Thanks a lot
Len Ovens wrote
On Mon, 18 Dec 2017, georgnk wrote:
I can also select my sound card without qjackctl and Jackd.
Pure data can see my input s and outputs directly. Then I go
audio
test
play
the sine wave , wait a while, I move frequency up and
down,clicks
start
and
never stop.
If these are random clicks, that sounds like sync issues. Some
things
to
try:
- set pulse default and alternate sample rate to 48000
- turn off HDA audio either in bios or in pulse:
pactl unload-module module-udev-detect
pactl unload-module module-alsa-card
(note that if pulse can see any audio card directly,
it may choose to sync from that one even if you are
not using it)
- try different sample rates, in particular both 44100 and
48000. It may be that alsa is under the impression
it can set sample rate when that is not the case.
I have not seen in this thread any meantion of the web interface
that
the
motu AVB series interfaces normally have, so I am guessing this
is
not
one
of these boxes. Motu's support in the past with Linux has be
notoriously
bad until the AVB series, so you may have something that will
not
work
with Linux properly... as in, it is USB2.0 compliant so far as
sound
transfer is concerned, but expects a provided blob to do device
setup.
The
AVB series uses a web based setup tool that is OS agnostic.
--
Len Ovens
www.ovenwerks.net
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