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Easy ZMA and T/S Parameters Using The LIMP Module in ARTA - An Illustrated Guide

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  • kenny_k
    commented on 's reply
    Post a WTB in the classified and keep your fingers crossed.

  • mortron
    replied
    Sounds like it's what I am after. I just wanted to make sure my plan to forego the DATS was with merit. I realize there is lots the DATS offers, but in the end I just wanted to be able to deduce T/S at the very least. I will research ARTA suite and what it all offers.
    Cross Spectrum has no stock for the time being and am not sure when they'll get more. Hopefully soon. Sadly the shipping to Canada is quite high. It's always kept me from jumping on one. Ends up costing almost $200CAD to get here.

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  • Chris Roemer
    replied
    ARTA is actually a suite of softwares. It CAN be purchased, but even using the (slightly more limited) FREE versions, if you build that jig, you can use the "LIMP" module to (basically duplicate DATS funtions to) generate T/S parms as well as .zma files - for XO simming (no need for a mic for just that).
    You can create .frd (FR) files (for simming) using ARTA w/a mic. Most here (for BEST results) use a mic calibrated by Cross Spectrum Labs. I've got a CSL'd Dayton EMM-6 mic that I use w/a Blue Icicle.

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  • mortron
    replied
    Sorry to drag this up... I am planning to buy a Sonarworks XREF20 mic and have a Steinberg CI2 interface.

    Is it correct in assuming I can build this jig and get most of the results I want from a DATS (t/s parameters and impedance curves etc) for the cost of the jig and learning some free software?

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  • Kornbread
    commented on 's reply
    Man, I forget what I did yesterday ... this is from 17'! :o Anyhow, IIRC, it is due to the uca222 being too noisy. Instead of spending more $ on a better soundcard, I just bought a dats.

  • BarryV
    commented on 's reply
    Hi Kornbread,

    Did you ever get an answer to this question? I have the same soundcard and see the same problem.

    Barry

  • tedwilt
    replied
    Arta is updated Current version 1.9.3. is released on November, 12, 2019 ArtaSetup193.exe

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  • duronboy
    replied
    I ordered a few of .1% resistors suggested earlier in the thread. Made a post in the classifieds if someone wants one without spending $8 on shipping.

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  • filmslayer
    replied

    thanks Hong . it just got me wondering . there is not much cost difference a 10w is only $ .98 .

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  • hongrn
    replied
    I use a 2 watt 1% tolerance resistor in mine without issues. I don't know if higher wattage matters.

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  • filmslayer
    replied
    does the resistors wattage matter ?

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  • Kornbread
    replied
    Just a heads up if you bought a Behringer uca222 to take measurements with ARTA or REW. It's not really plug n play. At least not in my case. I let the uca222 install whatever drivers/software it installed, and it worked, or so I thought, really it only partially worked (only driver available was wmd), so I went to the Behringer site and the listed driver for the uca222 was ASIO4ALL. Downloaded and installed that with the same results. You will need the Behringer 2902 2.8.40 driver for the uca222 to work properly with ARTA or REW.

    Also, take a look at these measurements. Both ARTA and REW produced almost identical impedance sweeps of the FaitalPro 5fe120 and Vifa xt25. Why is the impedance rising in the bass?

    Click image for larger version

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  • hongrn
    replied
    You don't need the amp to test for impedance, so your set up should look like this:

    Click image for larger version

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  • Kornbread
    replied
    Is this wired correctly to test impedance? The binding posts from the limp module attach at the same point as the amp to the speaker lugs?
    Click image for larger version

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  • Hipocrates
    replied
    This is Awesome, many thanks!

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