Need help getting good results from MiniDSP

Discussion in 'Measurement Techniques Discussion' started by antdroid, Aug 4, 2018.

  1. antdroid

    antdroid New

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    I dont know if you were pointing to the measurements I posted using EARS on /r/headphones or not but I have posted a few of them recently for Tin Audio T2, Hibiki Mk2 and Audeze Sine pad rolling. None of the ones I posted until today have been compensated curves though. Just the raw data. If it were mine, I also don't smooth my REW curves more than 1/48th usually.

    I got my EARS unit about a month ago. I've still been playing with it and finally got the compensation files from them today. The only provided me the mic cal file previously.

    The compensated data looks wacky to me. It's showing data that sounds flat to me as wacky. I dont really trust the flat compensation. I also don't like the new Harman target curves especially for IEMs. It's way, way, too boosted in the mid-to-upper bass. I guess that's what's popular these days but not for me.
     
  2. Lyander

    Lyander Official SBAF Equitable Empathizer

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    Nope, was basing off my experience with my brother's pair. Would be interested in seeing your measurements though!

    And yeah, the new Harman IEM Target is way too bottom-heavy even for me, the burgeoning basshead. I think the non-IEM curve make sense though, a moderate retuning of their 2013 one.
     
  3. antdroid

    antdroid New

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    Here's some measurements I took a few days back on the Unique Melody Planar IEMs.



    Frequency Response RAW using MiniDSP EARS uncompensated:

    [​IMG]

    Distortion:

    [​IMG]

    Flat Compensation Curve:

    [​IMG]


    The compensation curve is telling me that I should actually raise my sound at 1Khz but man, that would kill my ears. I lower that area because it's very shouty if you don't and listen at over 80 dB. Besides that, this compensation curve isn't too bad. I think the bass on these is just about right and if you need to raise it, it would just be a tad. I wouldn't raise it 5dB on the low end though. But if you remove their suggested +3dB flat compensation on bass region, then it actually is not too bad of a curve. The upper end is a mess to work with. :)
     
  4. MF_Kitten

    MF_Kitten Banned per own request

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    It's not telling you that there's a dip at 1K, it's tellibg you that there's a big bump at 1.6-1.7K-ish before it goes back down to follow the downward slope.

    You will often want the level to go down stsrting at about 1 K in order to get a more laidback sound.

    Do try dfferent insertion depths (giggity), as that might very well be the cause of some of the dips and bumps.
     
  5. purr1n

    purr1n Desire for betterer is endless.

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    If the compensation doesn't work for you, then you should develop one that works for you. Not everything is absolute truth. Use the EARS to guide you with relative results.
     
  6. antdroid

    antdroid New

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    The first chart (raw) was an average of 5 measurements actually. I was generalizing 1Khz because that's what my EQ capability is for my DAP. I can adjust 1KHz, 2KHz and 4KHz only.
     
  7. antdroid

    antdroid New

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    Yep I agree. I am just checking out the compensation curves now
     
  8. Ksorota

    Ksorota Friend

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    Instead of starting a new thread, I thought I would build upon this one.

    I am using a SBAF compensation curve, which still needs some tweaks (for instance I have a 4.5-5k sensitivity in my unit.

    Question below the image.

    This is being run from Mac Mini > Qutest > GSX mini > HE6 modded

    phase inversion 2.jpg


    I have been messing around with E.A.R.S. and with my HE6 I notice that i get a consistent phase inversion as shown in the photo above. My HD650 does not do this, is this indicative of reverse polarity wiring int he HE6, or something else?

    Any thoughts are appreciated...thank you!
     
  9. E_Schaaf

    E_Schaaf MOT: E.T.A Headphones

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    Most older HFMs are wired up in reverse polarity. Tyll's measurements showed this too.
     

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