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Thread: Dirac live vs Acourate vs Audiolense

  1. #91
    Yikes! Your system is almost certainly a lot more resolving than mine, so without the benefit of spending a few hours (days?) in your listening room, I can't really advise you further.

    It might be interesting to connect a small device like the Raspberry Pi 3 Model B directly to your DAC via USB (possibly with an iFi micro iUSB3.0 inserted between the Pi and the DAC). As I have described, I'd run Roon Bridge on the Pi and Roon Server on a different PC. Have Roon Server perform the convolution using Acourate filters and route the stream to the Pi running Roon Bridge. I've written a blog post that describes the setup. Here's a link:

    http://blog.dsnyder.ws-e.com/index.p...r-roon-bridge/

  2. #92
    Addicted to Best! Alrainbow's Avatar
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    Thanks. I will read it. I was hoping not to need room just diract or some other dsp loaded on my server. One sound I need to curb is the bass. Below 300 hertz to 100 hertz it glows up about 10 DB or so. A bass bump and I need to sit back about 18 feet from them to get it better.
    EQ in j river helps but the loss in bass articulation is still not clean. Now if I go back about 16/18 feet and go one side past the tower towards the side walls it's fantastic lol.
    But doing room sweeps I notice I have far more than a bass bump going on lol.

  3. #93
    Quote Originally Posted by dsnyder0cnn View Post
    The measurements that Mitch has presented in his book look convincing to me.

    While it's true that, "we build systems that support our beliefs", in my experience, Acourate generally works well regardless of the beliefs held by the peope who try it (suggesting that, while perhaps not comprehensive, the algorithms used are sufficient to improve sound quality in common audiophile listening rooms).

    Have you given Acourate a try in your system? If so, what did you think?
    I am not disputing that Acourate or other single point systems "work" effectively vs. no EQ. I have no doubt they do. The question is which concept works MOST effectively, single- or multi-point. Agreed, the theoretical, quasi-theoretical, spin, marketing or propaganda arguments could go on ad infinitum. So it comes down to a question of belief.

    I am sorry to say that, though I have followed numerous online tutorials, discussions, debates, etc, I do not find any convincing reason that I should invest the considerable time necessary in evaluating Acourate.

  4. #94
    Quote Originally Posted by dsnyder0cnn View Post
    Uli has told me that I'm free to take measurements from multiple locations and average them, but he has indicated that there's little benefit to doing so.
    .............
    He's correct but...
    Dirac Live averages the graphs for display purposes only.
    Dirac Live does NOT simplistically average the measurements for filter creation purposes, from those nine measurements we infer which time-domain and frequency-domain properties are common to all measurements and can consequently be robustly compensated (and those that are not)

    Mathias Johansson explains it here: http://www.audioholics.com/room-acou...tion-interview
    while a detailed document by Lars Johan Brännmark and Mikael Sternad is available here: http://diracdocs.com/ISEAT15_Brannmark_Sternad.pdf

    Flavio
    Warning: My posts may be biased even if in good faith, I work for Dirac Research :-)

  5. #95
    First post... And boy I would love to amalgamate Dirac with Roon somehow and point it to my microRendu for output to my DAC, but I've yet to find away to do it (at least not bit-perfect). That really sucks. So, I guess I'll give it a go with Acourate.

    (I didn't sign up just to type that.)
    Last edited by EVOLVIST; 04-25-2017 at 12:14 PM. Reason: typo

  6. #96
    Quote Originally Posted by EVOLVIST View Post
    First post... And boy I would love to amalgate Dirac with Roon somehow and point it to my microRendu for output to my DAC, but I've yet to find away to do it (at least not bit-perfect). That really sucks. So, I guess I'll give it a go with Acourate.

    (I didn't sign up just to type that.)
    May be you can evaluate a standalone Dirac enabled DSP processor, i.e.:
    https://www.minidsp.com/products/dirac-series/ddrc-24
    You'd still need initially a PC or Mac for measurements and filters creation but those filters will be uploaded to the DSP and the computer can be disconnected.
    Also the unit has D/A conversion already so that a DAC is redundant.

    Flavio

    P.S. A more expensive approach could be using an all digital DDRC-22D:
    https://www.minidsp.com/dirac-series/ddrc-22d
    together with a USBStreamer:
    https://www.minidsp.com/products/usb...sbstreamer-box
    In that case your current DAC could be digitally connected to the DDRC-22D I think.
    Last edited by Flak; 04-25-2017 at 04:42 AM.
    Warning: My posts may be biased even if in good faith, I work for Dirac Research :-)

  7. #97
    Quote Originally Posted by dsnyder0cnn View Post
    It looks like Uli provided some answers in the Acourate group on Yahoo. I'll paste them here for the benfit of WTB members:



    and a bit later...
    In my opinion the benefit of doing multiple measurements in Acourate is if you're using it to do crossovers above Schroeder, which is one of my intended applications.

  8. #98
    Quote Originally Posted by EVOLVIST View Post
    First post... And boy I would love to amalgate Dirac with Roon somehow and point it to my microRendu for output to my DAC, but I've yet to find away to do it (at least not bit-perfect). That really sucks. So, I guess I'll give it a go with Acourate.

    (I didn't sign up just to type that.)
    Let me know how things go with Acourate. Just be aware that convolution is inherently not a bit-perfect process--you will be intentionally manipulating the bits to achieve corrections in response.

  9. #99
    Quote Originally Posted by Flak View Post
    May be you can evaluate a standalone Dirac enabled DSP processor, i.e.:
    https://www.minidsp.com/products/dirac-series/ddrc-24
    You'd still need initially a PC or Mac for measurements and filters creation but those filters will be uploaded to the DSP and the computer can be disconnected.
    Also the unit has D/A conversion already so that a DAC is redundant.

    Flavio

    P.S. A more expensive approach could be using an all digital DDRC-22D:
    https://www.minidsp.com/dirac-series/ddrc-22d
    together with a USBStreamer:
    https://www.minidsp.com/products/usb...sbstreamer-box
    In that case your current DAC could be digitally connected to the DDRC-22D I think.
    Thank you for the suggestions. Yes, I've actually looked at all of the model from miniDSP; however, there are two problems.

    1.) The boxes internally process all signals below 24/192, like at 96kHz no matter what the incoming signal.

    2.) I cannot see giving up my Chord DAVE and Lampizator Golden Gate for these internal DACs.

    Actually, if I were going to go that route, the DAC inside the Emotiva AV receivers are no chumps. These come equipped with Dirac, as well, and I can get 24/192. I could always save some money and put the leftover change toward some Icon 300B monoblocks. Heh.

  10. #100
    Quote Originally Posted by dsnyder0cnn View Post
    Let me know how things go with Acourate. Just be aware that convolution is inherently not a bit-perfect process--you will be intentionally manipulating the bits to achieve corrections in response.
    You're right. I shouldn't have said bit-perfect, but you know, whether the convolution degrades the original audio signal is highly debatable... At least not to the human ear. Maybe my bats could hear it. By the time you run the signal into a great DAC, I still think we're golden.

    Yeah, I'll speak with Uli some more. The thing is, I'm fairly computer savvy; still, I'm scared to death that I'll screw this up! Haha!

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