Headphone Measurements Posting Standards

Discussion in 'Measurement Setups, Systems, and Standards' started by purr1n, Sep 26, 2015.

  1. purr1n

    purr1n Finding his inner redneck

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    Posts on headphone measurements should adhere to the following guidelines.

    Basic Information

    • Required: Provide a picture of the headphone. (grab a URL from the Internet if you are lazy.)
    • Required: Provide a picture of any special jacks or connectors.
    • Required: Talk about overall sound balance and frequency response signature in subjective terms.
    • Required: Cite areas where measurements meet with subjective impressions. And areas where they don't seem to.
    • Required: Cite fitment and seal issues.
    Measurements
    • Required: Frequency response.
    • Required: CSD (0.25 rise time recommended).
    • Recommended: Harmonic Distortion (THD or D2, D3, etc.)
    • Optional: Other Distortions.
    Subjective Impressions
    • Optional: How does it do in plankton?
    • Optional: How does it do in bass quality? Articulation? Impact? Slam?
    • Optional: How are the mids, warm, lush, forward? any issues with voices and piano?
    • Optional: How are upper mids? laid back? painful?
    • Optional: How is treble? Smooth, rough? Extended?
    • Optional: How is timbre? Plastic? Smoothed?
    • Optional: Attacks and incisiveness?
    • Optional: Dynamics? Compression?
    • Optional: Clarity?
    • Optional: Any amps that do well?
     
    Last edited: Sep 26, 2015
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  2. Ushi

    Ushi Rando

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    About Frequency response, what is the target compensation? Do you have a standard compensation file to share (diffuse, Harman ...)
    How can I attach my measurement pictures? There's no upload button, only insert url.
     
    Last edited: Sep 29, 2015
  3. purr1n

    purr1n Finding his inner redneck

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    I'll post in a bit about the measurement rig and thought process behind it in the measurements section. There is no compensation used.

    Going back to the beginning of Changstar, I was never a believer of a diffuse field response with headphones. Diffuse field sounds like shit and whoever came up with that idea should be shot. That being said, IEMs could use a little bit of DF equalization. The ear pinna tends add a DF type effect.

    There is some stuff on Changstar regarding the C.U.N.T. measurement apparatus. I'll eventually copy the material here.
     
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