Thank you for the response. I connect my motu using usb 3 ports,but I have also tried to disable usb 3 functionality from bios. I mainly connect it via qjackctl. Then I test tone using pure data,440 hz sinewave. You can also test it using audacity generating a sine wave tone. If you prefer command tools,maybe you can use libraries like stk toolkit or Maximilian ,in c++. 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. I use the latest firmware,but I couldn't find a way to downgrade,it says the old firmware can't be used,its out of date. Thank you list-2 wrote > Hello. > > Can you give the precise way you did this - i prefer command line tools > if possible. > As i got one, i can try to reproduce the behaviour maybe. > > Please add : How do you connect the 624 on your computer ? USB2 or USB3 > port on your motherboard ? > Firmware used by the Motu 624 ? > > Cheers. > > > > On 2017-12-18 10:39, georgnk wrote: >> 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@.linuxaudio >> https://lists.linuxaudio.org/listinfo/linux-audio-user > _______________________________________________ > Linux-audio-user mailing list > Linux-audio-user@.linuxaudio > https://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
