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  1. MLudovic

    Stax ED-1 and ED-5 EQs emulation

    Any feedback to share?
  2. MLudovic

    Stax ED-1 and ED-5 EQs emulation

    Ok I understand, that totally makes sense. I guess bass response is still a tricky part to manage, how low do you go when you measure a HRTF btw ?   Here is the "Subjective Filtre" impulse : http://www.petit-fichier.fr/2013/09/29/head/ Not a very spectacular EQ, but adds a bit of warmth and...
  3. MLudovic

    Stax ED-1 and ED-5 EQs emulation

    First post edited with the correct impulses!   Reading your discussion about HRTF is very informative, but to make a personalized set of impulses one doesn't need a perfectly flat speaker as a source ?   Sigma EQ curve to come. I'll also make an impulse from the Head "subjective filter"...
  4. MLudovic

    Stax ED-1 and ED-5 EQs emulation

    Julez, here is a similar paper in english : http://hal.inria.fr/docs/00/60/68/14/PDF/PG08_Reconstructing_head.pdf   The whole HAL website is full of scientific publications and thesis, for example searching for "binaural" gives a lot of entries...
  5. MLudovic

    Stax ED-1 and ED-5 EQs emulation

    Very interesting! When trying to understand the whole HRTF concept I came across this document : http://hal.archives-ouvertes.fr/docs/00/55/11/45/PDF/000431.pdf. In short they tried to create personalized HRTFs from photo of ears... 
  6. MLudovic

    Stax ED-1 and ED-5 EQs emulation

    Julez do you still have the impulse files of your headphones measurements? Even if I've found a great tool to extract data from images, getting the source files is much more reliable.   By the way, did you made other measurements with your university gear?
  7. MLudovic

    Stax ED-1 and ED-5 EQs emulation

    Yeah definitely interested in that kind of data, I wish I have my own dummyhead to measure my SR-3 and SR-404. Working by ear gives good results but fine tuning can't be done with blind adjustments. On your curves btw the difficulty of getting a good acoustic seal is visible, with the typical...
  8. MLudovic

    Stax ED-1 and ED-5 EQs emulation

    Thanks a lot Julez!   Here is an EQ curve made for the SR-207, based on this measurement : Source : http://rinchoi.blogspot.fr/2013/08/stax-sr-207-back-to-basic.html   Its simple aim is to make the curve above flat, so adding an other DF convolver with an ED-1 curve could be necessary...
  9. MLudovic

    Stax ED-1 and ED-5 EQs emulation

    Here we go!   ED-1 Monitor : http://www.petit-fichier.fr/2013/09/03/stax-ed-1-monitor/   ED-1 Signature : http://www.petit-fichier.fr/2013/09/03/stax-ed-1-signature/   ED-5 : http://www.petit-fichier.fr/2013/09/03/stax-ed-5/   Custom 404...
  10. MLudovic

    Stax ED-1 and ED-5 EQs emulation

    Yep phase is affected, you can see how here :     Corrected Signature :   http://www.petit-fichier.fr/2013/09/02/stax-ed-1-signature-1/
  11. MLudovic

    Stax ED-1 and ED-5 EQs emulation

    I'll see what I can do with the M.R.O. one, the NAVI looks really strange and flawed (lack of air sealing?).   BTW here are the 3 Stax boxes in action :   Zoom : http://i.imgur.com/7lseYkW.png
  12. MLudovic

    Stax ED-1 and ED-5 EQs emulation

    Quote:   Yeah why not, I can try with the 207, i just need to find a clear frequency measurement of it.   Quote:   Sure go ahead!   If you come across SR-404 users, can you please ask them their feeling towards this one for me...
  13. MLudovic

    Stax ED-1 and ED-5 EQs emulation

    Here are the impulses for the 3 Stax boxes and my SR-404 custom :   http://www.petit-fichier.fr/2013/09/02/stax-ed-1-monitor/ http://www.petit-fichier.fr/2013/09/02/stax-ed-1-signature/ http://www.petit-fichier.fr/2013/09/02/stax-ed-5/...
  14. MLudovic

    Stax ED-1 and ED-5 EQs emulation

    You're right saying that these boxes were designed with a specific use, since the amount of EQ they add is rather important, but they can sound surprisingly well with certain type of music (acoustic recordings, jazz, electro) by adding air and emphasising a range of high frequencies.   I was...
  15. MLudovic

    Stax ED-1 and ED-5 EQs emulation

    And we have a winner    That's exactly the type of data I've been looking for, and the good news is that the impulse can be used directly in the convolver plugin. It suits my SR-404 better than the Monitor curve btw.   Finding the schematic is only a matter of time now...   Thanks...
  16. MLudovic

    Stax ED-1 and ED-5 EQs emulation

    No, the two channels are independent, but nothing prevents you from adding a crossfeed to the DSP chain.       One ED-1 channel
  17. MLudovic

    The Stax Thread III

    AFAIK the ED-1 and ED-5 don't apply any crossfeed to the signal, they are only EQs which can be simply replicated with FIR filtering or even with a VST/winamp plugin set with the following filters :   600Hz     +1.7dB     Q=2.8     0.51oct 1400Hz     -4.2dB     Q=1.2     1.17oct 3200Hz  ...
  18. MLudovic

    W/Rap Sucks 2.0..............................Rap/HipHop Appreciation Thread.

    Moar dusty french sound?   La Caution:
  19. MLudovic

    W/Rap Sucks 2.0..............................Rap/HipHop Appreciation Thread.

    Quote:   Yeah, as long as you don't ask me to translate french lyrics for you!    One more for today:
  20. MLudovic

    W/Rap Sucks 2.0..............................Rap/HipHop Appreciation Thread.

    The vast majority of french artists just copy the US gangsta style and behave like idiots, but if you dig enough you can find gems.   Classic french band:   TTC:   with DJ Vadim:   Svinkels:   La Caution & Chateau Flight:
  21. MLudovic

    W/Rap Sucks 2.0..............................Rap/HipHop Appreciation Thread.

    Classics:     French:  
  22. MLudovic

    Stax ED-1 and ED-5 EQs emulation

    Quote:   Very interesting feedback, I share the same feeling towards the stock ED-1, bright and adds a lot of air to the music but may be too detailed and light sounding depending of the type of material. Definitively not for rock/heavy/metal stuff.   The custom curve is to me the...
  23. MLudovic

    Stax ED-1 and ED-5 EQs emulation

    Davidsh your settings are correct and you should hear a sensible difference between the raw and the processed sound. I've attached a short clip with different settings where the effect of the EQ is cleary audible.   http://www.petit-fichier.fr/2013/08/14/stax-test/   Arnaud : I've read...
  24. MLudovic

    Stax ED-1 and ED-5 EQs emulation

    Phase is affected like in the real thing (dotted line on the third screenshot), but with RePhase you can also decide to generate an EQ impulse that won't change phase at all (linear phase). It won't sound the same even if the difference is very subtle.   I did a lot of searches to gather...
  25. MLudovic

    The Stax thread (New)

    Quote:   Actually it could even sound better than the box since it faithfully reproduces the EQ curve without the distortions added by the opamps and capacitors. Convolution is a very powerful tool when it comes to audio filtering and modulation, you can even recreate the exact sound of a...
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