USB Issues

    Hi all,


    I initially had issues with my Virus but eventually I got it to work and I was so pumped! Unfortunately I'm back with more problems. Lately, I have been using the Virus in Ableton Live 9 with the Virus Ti Plug in and I keep running into the same problem. After a few minutes of playing the Virus, it is as if a note gets "stuck" and will not stop until I completely close the VST. When I reopen the VST and try again I get no audio, but the Virus and the Plug in are receiving MIDI. Restarting Live does nothing as well. Only when I restart my computer and virus can I get audio. I'm running Mac OSX 10.8.3. Please help!!!! It is beginning to get very frustrating :cursing: . Thank you!!


    -Lukas

    When I am in stand alone mode the notes do not get stuck. It is only when I use the Virus in my DAW with TI. Not only do my notes get stuck, my virus stops playing at random, and now it has introduced this new god awful screeching sound that occurs seconds before the audio cuts out. Thanks.



    -Lukas

    Update: I disconnected all usb devices other than my Virus and Midi controller. I also swapped out the USB cable that my Virus is using for the fourth time now. The audio does not cut out anymore and the Virus seems to be working fine except for one thing: It is as if the Virus only has 2-3 voices. When I play a chord it will only play 2 or 3 notes in the chord or it won't play the chord at all. This is the case when the Virus plays back Midi info from my DAW or when I am playing on my Midi keyboard myself. This is so confusing lol.


    Edit: I am now receiving the error message: "A sync error has occurred. Please press stop and play to clear."
    -Lukas

    Zitat von flabberbob

    I think now is the time to have a look in your system profiler and see how many internal USB hubs are there, and which devices are connected to them including the Virus. Can you list them here?


    I'm sorry but I'm not really positive how to get to my system profiler on my Mac. I've searched my computer for a while now and no luck. Any way you could walk me through the steps? Sorry for the newbie questions. Thanks.


    -Lukas

    Flabberbob,


    Thank you for walking me through it. I tried to attach a screen shot but this forum only allows for an 80 kb image to be uploaded which is way too small and pixelated. I will try to recreate what I see in my USB system profiler:


    USB Device Tree

    USB 3.0 Hi-Speed Bus:
    -Virus TI

    USB 3.0 Hi-Speed Bus:

    USB Hi-Speed Bus:
    -Hub
    -USB2.0 Hub
    Babyface (23483150
    -USB2.0 Hub
    Impulse


    Hub:
    -BRCM20701 Hub
    Bluetooth USB Host Controller


    -USB Hi-Speed Bus
    -Hub
    FaceTime HD Camera (Built-In)



    I tried to emulate it as best as I could. Let me know if you need any clarification. Thanks again!




    -Lukas

    First of all you can load your image up to one of those online photo album sites and then embed the image using the "insert image button".
    Now regarding the list you posted, looks like the Virus is connected to a USB3 port which is not always good (depends on chipset maker and drivers). If updating the USB drivers is impossible or doesn't help, you can switch places between the impulse+babyface and the Virus (make sure the Virus doesn't have a sibling device on the USB tree). BTW, if the impulse is a MIDI controller you can connect it to a port that shares a hub with the onboard devices (camera, bluetooth), because it uses very little bandwidth, but it's best if the Virus stays the only device in its hub.
    Good luck!