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Thread: Dirac with JRiver and EMM DAC

  1. #1

    Dirac with JRiver and EMM DAC

    Hello

    I am evaluating Dirac package, opened a ticket with their support, but it is somewhat slow..

    Setup:
    Windows 10, running JRiver 21 output going to EMM XDS1 via USB (ASIO)

    With UMIK-1 created filter, saved it and also the project.

    Then set the output device to WASAPI-based Dirac Processor (aka virtual sound card), and the sound came very distorted.
    When trying to load generated filter, get a generic error 'cannot load filter' without any kind of specifics (what, why?)

    Then just switch off the filters using slider in the processor panel, but still the sound was distorted

    In processor panel the output device is set to same ASIO Meitner Audio

    Any clue?

  2. #2
    Not clear. Jriver output should go to DL. DL output should go to DAC/driver.
    _____________________________
    Kal Rubinson
    "Music in the Round"
    Senior Contributing Editor, Stereophile
    http://forum.stereophile.com/category/music-round/

  3. #3
    Yes

    JRiver -> Dirac -> Meitner sounds distorted, even with filters off

  4. #4
    Quote Originally Posted by michael123 View Post
    Yes

    JRiver -> Dirac -> Meitner sounds distorted, even with filters off
    Sounds like a driver issue to me. I had the same problem with a DIY dac. I had to hunt for a decent driver (took 2 months to find one - as it was a Chinese Dac that I was experimenting with). However after I found the right driver, Gold!!!

    Which version of JRiver do you have (do you have a master license for Linux, Mac, and PC)? If you have a linux machine around - you may want to experiment with it since Linux supports USB Audio 2.0 without the need of drivers.

    Does it work properly without Dirac?

  5. #5
    Yes, of course it works perfectly direct from Jriver. It is not a driver issue, but related ro Dirac. Moreover, Dirac managed to generate sweep tones.

    I have read on computer audiophile that there is a VST module (like FabFilter), but I don't know where to get it

  6. #6
    Quote Originally Posted by michael123 View Post
    Yes, of course it works perfectly direct from Jriver. It is not a driver issue, but related ro Dirac. Moreover, Dirac managed to generate sweep tones.

    I have read on computer audiophile that there is a VST module (like FabFilter), but I don't know where to get it
    The Dirac VST plugin is unsupported Beta software available only from Dirac upon request. It is not available during the 30-day evaluation. Actually, I do not think it is available with the Stereo license to Dirac, only the "full" 8-channel version. But, I use it and I know Kal uses it. I like it, but I would not swear that it makes any sonic difference vs. using the separate DAP software. It is more of a convenience, eliminating some connectivity issues.

    I agree with others here. It sounds like the OP has a driver issue in conjunction with Dirac. I have not had that experience with the ASIO driver to my Exasound E28 with DAP or with the VST plugin to JRiver using Win7Pro.

  7. #7
    I am confused, what can I do?
    Dirac did not respond so far to my inquery.

    EMM is USB Audio 2.0 device, never had any issue with either foobar or Jriver

  8. #8
    Addicted to Best! Rodney Gold's Avatar
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    dirac should have a section where you can set the amount of attenuation it uses to avoid digital clipping , check that it's at least -6db ..-10 is default , if its at 0 , its going to generate digital clipping , very nasty distortion
    Also check that your measurement i/o levels are correct
    Also .. check this
    For Windows users: If available, the preferred choice should be an ASIO device. If
    ASIO is not available, or if it sounds distorted, then try a non-ASIO device (the same
    hardware can show up as multiple devices, depending on what
    audio interfaces its driver supports).
    Roon/Tidal ..Squeezebox touch . DIRAC...Twin Devialet D Premier amps , Vivid Audio Giya G1 Spirits .. fully treated room

  9. #9
    Yes, I've checked and played with the attenuation last week, it is -8db, however the filters are OFF anyway, so Dirac should not do any processing, but rather passthrough

    It is ASIO, checked also with WASAPI.. No much difference.. ASIO was OK when measuring, though

    The sound is not just distorted, it is like the very poor cellular connection


    Is it a big company, Dirac? Wonder why these guys gave me their first response from the helpdesk after couple of days, and now it is 3 days since I haven't heard a word from them

    I would try a VST

  10. #10
    Guys,

    do you have maybe Dirac's phone number?
    I could not find anything on their website, neither on the LinkedIn page

    :-(

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