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  1. M

    Quiet gear vs. dark backgrounds, and the "space between the notes"

    Going all digital from the recording ADC to the reproduction DAC. What do you think is wrong with digital? Since you compared thousands of vinyls and cds (really?), can you sum up this huge experience in simple words for those who like me will never compare thousands of vinyls and cds with the...
  2. M

    Ambiophonics, What it is

    mep, sometimes spending big money is not a solution. Just stick a big panel between some random cheap speakers, setting them next to each other (as close as possible), then put your forehead against the panel in order to isolate your right ear from the left speaker and the left ear from the...
  3. M

    Quiet gear vs. dark backgrounds, and the "space between the notes"

  4. M

    Quiet gear vs. dark backgrounds, and the "space between the notes"

    A month ago I was listening to some percussion work by John Cage when I realized how much silence was important; there's passages with several minutes of silence, very faint sounds, and also very loud passages. My usual gear was too noisy, so I ripped the cd and used a netbook PC with no moving...
  5. M

    Ambiophonics, What it is

    I agree. And the best way to unlearn is to try cross-talk cancellation in a very crude way: with a physical barrier.
  6. M

    3D audio report

    Kal, To enjoy many types of recorded music, including classical music, people must have access to decent reproduction technologies, ideally in their childhood. I would'nt say that classical music is a niche in the western world, but it is certainly difficult to appreciate in bad listening...
  7. M

    High Performance $2000-3000 Digital Music Server

    My Linux based music server My music server is made with old and refurbished parts. The computer is a ASUS barebone media server with a 2.8Mhz 32bits Pentium4, fitted with a 1TB WD hard disk connected through a SATA/ATA converter. A generic 32 inches HDTV is connected with a VGA cable and the...
  8. M

    3D audio report

    Crossfeed circuits (or filters) can remove some of the disconfort, but they can't move the stereo imaging in front of the listener.
  9. M

    3D audio report

    The 2 parts paper is titled: "The Effects of Interaural Crosstalk on Stereo Reproduction and Minimizing Interaural Crosstalk in Nearfield Monitoring by the Use of a Physical Barrier" After reading it last year I made a temporary physical barrier using two 4'x8' polystyrene foam isolation...
  10. M

    3D audio report

    I don't think it would matter for ambiophonics, because a sweet spot is required, and because: Ultrasonic speakers are probably not well suited for conventional stereo because interaction with the room is important. But I'm just thinking out loud; I have no listening experience with either...
  11. M

    3D audio report

    I emailed Holosonics and quickly received a reply; the frequency response of the smallest panel is about 300Hz-16Khz. Why wouldn't they blend well with traditional speakers (and subs)?
  12. M

    Late introduction

    Amir, Thanks for your warm welcoming reply! I just checked the "Madrona Digital" web site. It is a distributor of the Lexicon products; the logo reminded me that I programmed a (never released) Macintosh MIDI control software for the Lexicon LXP2 digital reverb, back in 1987... :-)
  13. M

    Late introduction

    Dear What's Best, I joined two months ago; I have already posted 28 messages, but it's never too late to introduce myself. I am in my late forties. I always lived in Montréal, a very musical city. My native language is French, so my English skills are limited. I have studied electrical...
  14. M

    3D audio report

    In Montréal there will be a public architectural installation using similar ultrasonic speakers, so I will have the opportunity to listen to them. I wonder how they would sound in a stereo configuration (even with their limited SPL and reproduction bandwidth).
  15. M

    3D audio report

    That's why I might order two Harper kits from you. I built small enclosures with 4" FR drivers especially to use the BACCH filter, but since your speakers were found to be the most directive by Professor Choueiri, I should get them instead of trying to build anything else (like econowave...
  16. M

    Nice write-up on issues involved in design of class D amps

    It is difficult to follow, but it provides good information about the possible configurations of class D circuits. What I'd like to find is how class T amps compares to other class D amps; the Tripath patent explains that the usual PWM modulation is replaced by a sigma-delta modulation in order...
  17. M

    3D audio report

    Stereo is one technique; since its invention there have been many variations in the art of recording and reproduction, and that's why we can listen to old and new recordings in various conditions. The "job" of an audiophile is to listen to many musical styles and "sound systems" in order to...
  18. M

    3D audio report

    I tried a few options for ambiophonics (free and commercial) and I much prefer the BACCH IR file with a good convolver (JConv) on Linux. I would really like to try the newer BACCH... In the meanwhile I will build a physical barrier and get speakers with better directivity.
  19. M

    3D audio report

    Is that "much updated version of Bacch" available for download? The project web site is in construction, with no Bacch file : http://www.princeton.edu/3D3A/
  20. M

    3D audio report

    His BACCH x-talk cancellation IR file used to be distributed on ambiophonics.org; I don't know why it was removed. I've been using it with my home system for several months, and I prefer this listening setup to conventional stereo for any kind of musical material (including live classical...). A...

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