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Thread: Can't play the guitar and listen to a youtube video

  1. #11
    Join Date
    Dec 2009
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    334

    Re: Can't play the guitar and listen to a youtube video

    OK, I will give that information later at home, but I can tell you now that it has been working ok and with just 1.5 msec of latency, and things suddenly turned into a nightmare.

  2. #12
    Join Date
    Jun 2008
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    1,185
    Distro
    Ubuntu Studio

    Re: Can't play the guitar and listen to a youtube video

    Well, with that kind of CPU and without lowlatency kernel, I doubt about 1.5ms latency. That is too low.
    I'm on 4ms latency, but with i5 CPU and lowlatency kernel. I don't remembre if I tried to go lower, but I don't really need any lower than that.

  3. #13
    Join Date
    Dec 2009
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    334

    Re: Can't play the guitar and listen to a youtube video

    "Playing" with Qjackctl parameters (Setup) I reduced the latency to around that value. I don't note any difference (I mean, no delay) comparing to playing with the "real" amplifier (a 10W Fender Frontman).

  4. #14
    Join Date
    Mar 2006
    Beans
    308
    Distro
    Ubuntu Studio 12.04 Precise Pangolin

    Re: Can't play the guitar and listen to a youtube video

    Maybe a longshot, but wasn't there an update of Firefox recently? Did the issue begin after that update perhaps?

  5. #15
    Join Date
    Dec 2009
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    334

    Re: Can't play the guitar and listen to a youtube video

    My problems began last Monday, do I have any way to see if there was an updateduring the Sunday-Monday period?

  6. #16
    Join Date
    Mar 2006
    Beans
    308
    Distro
    Ubuntu Studio 12.04 Precise Pangolin

    Re: Can't play the guitar and listen to a youtube video

    You should be able to see that in Ubuntu Software Center and under History. I got my Firefox update yesterday, but that might be just that I didn't run apt-get update before that this week.

  7. #17
    Join Date
    Dec 2009
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    334

    Re: Can't play the guitar and listen to a youtube video

    groups:

    robert adm cdrom sudo dip plugdev lpadmin sambashare

    The guitar (and with the same cable) works fine plugged to the laptop, but with the desktop PC, when I strum the strings it sounds as if there is a Geiger counter detecting radiation. I tried installing a 64-bit Ubuntu 12.04 and adding RAM, thinking that the problem was related to performance but no, seems as if there is something wrong with the audio circuitry.

  8. #18
    Join Date
    Jun 2008
    Beans
    1,185
    Distro
    Ubuntu Studio

    Re: Can't play the guitar and listen to a youtube video

    groups:
    Code:
    robert adm cdrom sudo dip plugdev lpadmin sambashare
    You are not the member of "audio" group. In order to have RT audio you need to be. Add your self to audio group.

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