CHANGSTAR: Audiophile Headphone Reviews and Early 90s Style BBS
Lobby => Headphone Measurements => Topic started by: Bill-p on March 01, 2015, 12:12:55 AM
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Just swapped the velour ear pads in for my dad. It sounded like it changed the frequency response and stuffs quite a bit (sounded darker and smoother), so I took some measurements of the right side here.
Also quick test for my new crude and simple coupler. No actual ear simulation yet, though it seems I'm getting fairly consistent results with what's being displayed here, perhaps minus distortions, so please ignore those.
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Looks like you're getting good results.
Would you mind sharing the windowing parameters that you're using for the CSD plots?
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Sure.
I set the view to be from 55dB to 100dB, 200Hz to 24KHz.
The following REW settings don't make any sense to me for now until I do some more readings, but I collected them from the old CSD thread on H-fi, and from experimenting with the views:
Total slices = 100
X = 17
Y = 91
Z = 120
Time Range = 5.2
Window = 7.2
Rise Time = 0.5
Smoothing 1/48
"Use CSD Mode" checked
When I have more time, I'll try to mold an ear to my ear shape, most likely out of thick closed-cell foam, just to see how this will affect high frequencies.
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Looks good
When I have more time, I'll try to mold an ear to my ear shape, most likely out of thick closed-cell foam, just to see how this will affect high frequencies.
I wouldn't bother trying to replicate any ear shapes or whatnot. The data you pick up from the "free field" response of the headphone tends to be very indicative of perceived response.
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Yeah... I'd think so as well, since I heard the headphone almost exactly like that. Big bass bloom, slightly recessed but even mids, with some emphasis on strings that can sometimes sound shrill (probably that ridge at 4.5KHz), and slightly piercing (peaks @ 9.5KHz and some at 13-15KHz) at higher volume but other than that, not bad at all.
Still, will try the ear thing to see how things would change.
Thanks for the good deal on the mic, by the way. Really helped me get up and going on this. I really didn't know where to start, but now I have some concrete ideas, and at least a fairly consistent way to measure FR.
ahoy
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Great job Bill!
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Thanks! :)
I'll try to measure a few more headphones to see how things are looking overall.
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so which velour pads are you using?
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They call it "velvet", I say it's "velour". But... I guess they are kinda similar (in feel, that is).
It's this one:
http://www.amazon.com/ATH-M50-PADS-VELVET-ATH-M50RD-ATH-M50WH-ATH-M50xBL-ATH-M50xWH/dp/B00F2ZM6CS/ref=sr_1_10?ie=UTF8&qid=1425178297&sr=8-10&keywords=m50+ear+pads