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About bogi

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  1. @mikel, if you wish to perform HRTF processing with additional equalization, I would do the equalization before HRTF processing. My point is that the HRTF processing has an intentional frequency response, which together with phase delay helps to localize sound source. So I mean more clear solution is to equalize first and then to let the HRTF processing to do it's job. Different HRTF data sources or solutions don't provide the same sound - the result may for example sound brighter or darker. You can try for example Panagement 2 VST plugin in some player with VST support. Placing th
  2. bogi

    HQ Player

    Miska, I am curious how you got this picture (with my IR files) containing both channels 0 and 1, because I am able to show plot for one channel only (otherwise my plot looks the same):
  3. My first picture was without any song played after HQPlayer startup. After interrupting a playing song by entering the Matrix dialog the blue line was added:
  4. ... and yet one suggestion. For the first experiment try not to do any upsampling or conversion to DSD. Because that depends on processing power of your PC if HQPlayer is capable of doing anything you wish. Just try these I'm using for head 1050 (1006 in filename is bad, zip content is 1050): IRC_1006_C_R0195-stereo.zip
  5. The plot function of HQPlayer 4.8 shows (for the 1st matrix line) this picture: I remember from other type of experiments that HQPlayer simply ignores IRs if they aren't 1ch (mono) or if they are not of supported format. Try to disable CUDA offload at bottom of File -> Settings for the first experiment because if enabled, DSP is performed on graphical card processor. If that is not working in your setup, then you could get unexpected result. For example I cannot use CUDA with HQPlayer 4.8 but I can use it with 4.5.1.
  6. Hi STC, in the opening posts I described how to setup HRTF IRs for stereo to binaural processing with 3 popular players. Then, based on questions from other forum members, which were related to the opening post setup procedure, I provided more details. I would like to leave this thread to discuss this HRTF based technical approach and to compare the result with other sources of HRTF data, the EU Listen project beeing only one of them. I didn't find your contribution related to interaural crosstalk as following the HRTF based opening post. Interaural crosstalk cancellation is not pa
  7. For those who are not aware of binaural sound potential on headphones, I am adding 2 examples. Play them without any DSP, since they already are binaural. They are showing how sounds can be perceived as coming from any direction, including behind head, up or down. Things like behind, up or down are not happening with stereo to binaural processing, because we are using HRTF IRs for left and right channel sound sources positioned in front of listener (the azimuths 30 degrees left and 30 degrees right from OP). But if we would configure multichannel to binaural processing
  8. This thread is about improving listening experience when using headphones. It is dedicated to stereo to binaural (or multichannel to binaural) DSP for headphones. This thread is not about cancelling interaural crosstalk (ambiophonics) - that is specific loudspeaker relevant topic. I suggest you to discuss ambiophonics in a different thread to avoid confusion. The proposed stereo to binaural solution from the opening post is just about addressing the "sound inside your head" issue, when listening on headphones. EDIT: I just found that maybe I didn't clearly sta
  9. The example from the opening post is a binaural type of solution using HRTF, not a simple crossfeed. Head RelatedTransfer Function Crossfeed
  10. Yes, and that's hard to reach in home conditions. How much does it cost in the Germany institute?
  11. The _C_ in filenames means that I used the compensated ones in the above example. Something is explained here, but I'm not an expert in this area.
  12. You can use any equalization that is only equalization. What do I mean? Equalization should change only frequency response (no phase shifts, like delays) and usually is the same for the left and the right channel. That's the case also of the compensation curves. Better to do such equalization before applying HRTF to binaural processing. In foobar2000 and JRiver you can stack different DSP plugins in the desired order. From HQPlayer 4.8 you can use both the standallone convolution engine, which you can use for the headphone compensation curves, and the matrix pipeline fo
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