- #Panasonic wm 61a calibration file for free#
- #Panasonic wm 61a calibration file update#
- #Panasonic wm 61a calibration file mods#
- #Panasonic wm 61a calibration file windows#
#Panasonic wm 61a calibration file mods#
Note how the HD800 mods get rid of the resonance even on the v2 coupler.
#Panasonic wm 61a calibration file update#
Will update this post when I remember again.ĮDIT 2: Also attached CSDs in sexy white (36db range). I know that I forgot something, I just can't think of what it was. I just find this to be the better compromise (between too dead and too reflective). You could also make the argument that this material is not reflective enough and doesn't show resonances between the side of the head and the earcup properly and to a degree this is correct. I can't say for sure as I've never had the chance to measure one. The catch is that this material will probably not seal with the STAX headphones, so the bass measurements will probably be inaccurate for stats. With my open headphones, HD600 and especially HD800 the bass measurements actually more closely match what I hear and are very close to the bass measurements my mic-in-the-ear-canal measurement method gives me. This is mainly supposed to be a more easy to use Marv-V1-type coupler, without having to use a solid plate for bass measurements.
#Panasonic wm 61a calibration file for free#
That I got it for free was simply a bonus. Maybe this is part of the secret (that it technically isn't one material, but multiple materials in one). I think this is essentially multiple dense open cell foams squashed together. (more close up pic, so you can better see the structure of the material - looks to be open cell foam) I ended up using the following material (about 3cm thick): This is why I then decided to build a coupler closer to V1. Most headphones will measure better on the V2 type coupler than the HD800. I still didn't like the results this coupler gave me, at least for the HD800. When I used a V2-type coupler I used a thicker piece of felt (I think it is 3mm), roughly the shape of my ear, to absorb reflections. I already said that I don't like the creatology foam as a coupling material: I feel that it gives too much of a seal (Marv used a piece of felt to deliberately break the seal) and is too reflective somehow. 128k sweep for CSDs, 1M sweep for distortion Idk why but the longer sweeps change the phase (and accordingly: Impulse response/CSD).44.1kHz log sweep from DC to 22 050Hz, -3db.I try to place my coupler >0.7m away from reflective surfaces 0.7m is about 4ms. 4-7ms window, depending on where the reflections start.5.21ms time range (so every division is 1ms).I mostly use either a 36db or 40db range.120db top/49-35db bottom for measurements taken at 85db, this is a 36-55db range, depending on measurement accuracy, measured transducer, etc.Hamming Left, Blackmann-Harris 4-term right.Spectrogram and CSD impulse response window:.(Remember that my setup has no gain between the mic and the input) I don't think this calibration is very accurate at all, but I simply do not have the means to calibrate it more accurately. I calibrated the volume level by using the specced mic sensitivity (15mV/Pa) and line in sensitivity (2Vrms) in ARTA. I use this as a phantom power supply and plug it straight into my ASUS Xonar STX soundcard. I actually used a DBX RTA-M before, which wasn't better. They were all pretty close, considering how cheap they were. I actually bought 10 and measured them all to get "matched pairs". HOLY SHIT, I just realized that I still haven't posted a pic of my coupler. HD800 (modded) on creatology foam + 3mm felt disc coupler: I use 0.25ms.įor comparision, here is my impulse response for HD600 and HD800 (modded) with the coupler I now use: What window rise time do you use for your CSDs, It looked a bit high in the STAX thread. I prefer the CSDs over the impulse response.
#Panasonic wm 61a calibration file windows#
I also measured the loopback (DAC->amp -> ADC) and the impulse response changes a lot when changing windows audio settings (my output is always at 44.1kHz, I only changed the input sample rate).
When I look at the impulse response I usually look at -0.5ms to 3ms (slightly longer range), though -0.5ms to 2ms makes a lot of sense for the better headphones out there.
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