ZMF Verite Measurements

Discussion in 'Headphone Measurements' started by purr1n, Nov 2, 2018.

  1. Vtory

    Vtory Illogical Spock

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    Also, below are v-pad results (fr already posted above)

    upload_2019-4-26_11-4-16.png

    upload_2019-4-26_11-4-57.png

    upload_2019-4-26_11-5-6.png

    upload_2019-4-26_11-5-14.png

    Difference seems less evident (compared to fr-diff).
     
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  2. Vtory

    Vtory Illogical Spock

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    upload_2019-4-26_23-3-50.png
    (1/24 oct)

    upload_2019-4-26_23-4-5.png

    upload_2019-4-26_23-4-13.png

    upload_2019-4-26_23-4-21.png
    (typo: 1/12 oct wavelet)
     
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  3. Vtory

    Vtory Illogical Spock

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    upload_2019-4-26_23-5-36.png
    (1/6 oct)

    upload_2019-4-26_23-5-45.png

    Interestingly, I couldn't hear 9k peak with s-pad as much as with v-pad, although measurements suggested they had similar gains around there.

    Also, slight gain in the sub-bass shown in fr mirrored my subjective impression. Pretty mild impact but positive change at least to me.
     
    Last edited: Apr 26, 2019
  4. Vtory

    Vtory Illogical Spock

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    I've long questioned myself whether or not "pad gain" is linear.
    Put it differently, if pad effects are measured with headphone A, will the effect apply to headphone B to the same extent?
    Or for those math-lovers, is pad gain independent from headphones equipped on?

    I roughly thought the answer would be "limited yes".

    And the result I got this time countered such hypothesis.

    I compared relative gains of universe suade pads and verite (lambskin?) pads.

    The result obtained from Verite headphones (the same as posted above; pheasant-wood):

    [​IMG]

    And below is the result obtained from Aeolus (sbaf loaner; ziricote) headphones.

    upload_2019-4-28_0-15-47.png

    Wow. What a difference.

    Of course there observed some consistent patterns. But pads quite differently responded to headphones. Suede pads behaved more differently than verite pads. Are there any "revisions"? Maybe @zach915m can chime in.

    Need to collect more thoughts about why. Maybe internal reflections and their interactions with pad material could be tricky, which generated non-linearity. But I digress now.

    PS. For any f (20-20000hz)
    S-pad (relative) gain (f) = FR(f | suade pads) / FR(f | universe pads)
    V-pad (relative) gain (f) = FR(f | verite pads) / FR(f | universe pads)

    Note that divisions become differences in log scales.

    PS2.
    FRs were 1/6 oct smoothed twice (before and after being divided) mainly to rule out less important info.
     
    Last edited: Apr 28, 2019
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  5. Vtory

    Vtory Illogical Spock

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    Waterfall plot attached. Verite seems to benefit from its (more) open structure compared to its siblings (auteur, aeolus) -- or tighter driver controls (maybe both)

    upload_2019-5-16_22-21-51.png
     

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