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Thread: Headphone FR measurements (hearing tests)

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    Default Headphone FR measurements (hearing tests)

    This study was done at McGill U. in Canada where the frequency response of popular headphones were compared. Interesting and disturbing at the same time.

    http://www.music.mcgill.ca/%7Emarui/...20Measurements

    Thanks to Bob Crowley's Microphonium Blog for bringing this to my attention.
    Lynn Fuston
    3D Audio

    Making beautiful music SEEM easy since 1979.

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    It's interesting to see the plot for the Sennheiser HD600's - that is one set of phones that I aspire to for another method of critical listening in the studio, and they appear to me from the other plots to be the pick of the bunch. The Bose ones look scary.

    Cheers,
    Tim Julian
    The Colour Field Recording Studio
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    Sennheiser HD-600 seems to look the best.
    would be cool to see a plot for the some of the Beyerdynamic headphones on the same test.
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    I'm just wondering outloud here,...how much the personal shape of our ears effects the frequency response we each hear with each set of headphones? I assume not enough to matter enough, but I kind-of wonder, because if you don't put your headphones on exactly right, it can sure sound different (relatively speaking) compared to when tweak their position on your head a little.

    also wondering if once we get used to a certain sonic signature of our headphone, if we automatically compensate in our evaluations for critical listen applications?

    I wonder what type of headphones the audiologists use?

    What about tests like these...?
    http://webscripts.softpedia.com/scri...est-37552.html

    http://www.phys.unsw.edu.au/jw/hearing.html

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    Quote Originally Posted by Mike Derrick View Post
    I'm just wondering outloud here,...how much the personal shape of our ears effects the frequency response we each hear with each set of headphones? I assume not enough to matter enough, but I kind-of wonder, because if you don't put your headphones on exactly right, it can sure sound different (relatively speaking) compared to when tweak their position on your head a little.
    In the section under METHODS on the page I referenced, there is this note:

    Five seatings were measured for each headphone and I averaged them to create the figures below.
    I assumed seating to mean "positioning the headphones on the ears of the test dummy."
    Lynn Fuston
    3D Audio

    Making beautiful music SEEM easy since 1979.

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    Quote Originally Posted by Mike Derrick View Post
    Absolutely fascinating test. I love it that there are 3 dB gradations. I did it with using the "threshold of audibility." If I could tell when the signal ended, then I must be hearing it.

    NOTE: There are several of the tones that do not end on a zero crossing, so they end with a distinct tick. Hearing that is NOT the same as hearing the tone. (16K and 45 and 90 Hz. I could hear the cutoff at a threshold 51 dB lower than the tone.)

    I wonder if this tells me more about my hearing or the headphones. You'll not be surprised that I did a comparison test. I kept all things the same (volume, ambient noise, etc.) and did the test back to back with two different sets of headphones. The results were not surprisingly different.

    Here are my results in case anyone is interested.
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    Lynn Fuston
    3D Audio

    Making beautiful music SEEM easy since 1979.

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    I'm feeling sort of lonely. Someone else take the test and let me see your results. Don't forget to identify the headphones.
    Lynn Fuston
    3D Audio

    Making beautiful music SEEM easy since 1979.

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    i did a listen with computer speakers: )~
    i will try it with a few different headphones first chance i get!
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    Quote Originally Posted by pan60 View Post
    i did a listen with computer speakers: )~
    I bet that was interesting, if not enlightening.

    [EDIT: I tried it too. Just because I can. Below is the threshold of audibility chart for my Powerbook G4, max volume, my ears, typical ambient noise level, loudest thing being the sound of the laptop. I didn't bother with anything below 90 Hz. And the 16K is a false reading as well, since I could hear the end of the sample clipping off.]

    It's fascinating to think how many of our mixes are evaluated on similar speakers whose response looks like the inverse of this curve. Youch!!!
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    Lynn Fuston
    3D Audio

    Making beautiful music SEEM easy since 1979.

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    hear is my sennheiser HD-280 PRO
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