Hello, that's very interesting. I just gave a try a motu 624 with ubuntu lowlatency kernel, but also with a generic kernel too. I have the following problem: Once I test tone with a pure sinewave (easy and reliable way to test a sound),after a few seconds periodic clicks are quite audible. Actually these clicks are present with any kind of sound, just more difficult to track if the sound is not a pure sinewave. Did you test your sound using a pure tone in debian? Do you have the same issue? I tried different workarounds but the clicks are still there. For sure isnot a jack issue,because using alsa directly I had the same problem. Any feedback appreciated from anyone who tried the new Motu products with linux. Thanks a lot! list wrote > Hello. > > You know the AVB serie from MOTU. > We've talked about the 1248 & the UTRALITE AVB previously on the > Linux Audio Users list : > > http://lists.linuxaudio.org/pipermail/linux-audio-user/2017-May/108050.html > http://lists.linuxaudio.org/pipermail/linux-audio-user/2017-March/107629.html > > Now the MOTU 624 AVB. > Working with Gnu/Linux Debian 8.7. > The same as 1248 & ULTRALITE AVB, «real» class compliant, and web app > to control all the settings of the card from your browser. > > Update firmware with 0 trouble through the web app interface : > > http://achromatopsie.fr/list/00_installfirm.jpg > > http://achromatopsie.fr/list/01_verifyingfirm.jpg > > http://achromatopsie.fr/list/02_rebootfirm.jpg > > http://achromatopsie.fr/list/03_successfirm.jpg > > Some screen shot from the Routing menu (sorry need to zoom out, too > much inputs ! AVB disabled so no stream appears on the screen) > > http://achromatopsie.fr/list/04_routing.jpg > > Screen shot from the Mixing menu : > > http://achromatopsie.fr/list/05_mixing.jpg > > http://achromatopsie.fr/list/06_mixingzoom.jpg > > http://achromatopsie.fr/list/07_mixingzoom1.jpg > > And from the Device menu : > > http://achromatopsie.fr/list/08_device.jpg > > http://achromatopsie.fr/list/09_device2.jpg > > Pluged with USB3, Gnu/Linux Debian 8.7 - Custom Kernel : > Linux 4.9.3-amd-64-20170113 #1 SMP PREEMPT Sat Apr 8 > 17:30:25 CEST 2017 x86_64 GNU/Linux > > lsusb > > Bus 003 Device 002: ID 07fd:0005 Mark of the Unicorn > > lsusb -t > > /: Bus 03.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 > |__ Port 1: Dev 2, If 3, Class=Vendor Specific Class, Driver=, 5000M > |__ Port 1: Dev 2, If 4, Class=Vendor Specific Class, Driver=, 5000M > |__ Port 1: Dev 2, If 5, Class=Vendor Specific Class, Driver=, 5000M > > aplay -l > **** Liste des Périphériques Matériels PLAYBACK **** > carte 0: D624 [624], périphérique 0: USB Audio [USB Audio] > Sous-périphériques: 0/1 > Sous-périphérique #0: subdevice #0 > > Made some quick record (guitar from emulated output of an amp, > microphone vocal) nothing to say, work perfectly. Nice preamp - for me > - clean, no hiss, no background noise, nice dynamic, can hear all my > bad notes and bad fingers on the guitar :) > The line input - jack - work also perfectly, respect the color of my > preamp (Warm Audio) > > Did not try the optical I/O as i do not have any devices for it. > > Thanks UC2, thanks MOTU. > > Anyone have access to the Alsa project card's list and update ? > https://www.alsa-project.org/main/index.php/Matrix:Vendor-Mark_Of_The_Unicorn > > All the best ! > > > > > _______________________________________________ > Linux-audio-user mailing list > Linux-audio-user@.linuxaudio > http://lists.linuxaudio.org/listinfo/linux-audio-user -- Sent from: http://linux-audio.4202.n7.nabble.com/linux-audio-user-f5.html _______________________________________________ Linux-audio-user mailing list Linux-audio-user@xxxxxxxxxxxxxxxxxxxx https://lists.linuxaudio.org/listinfo/linux-audio-user