On Tue, May 3, 2011 at 10:14 AM, Fons Adriaensen <f...@linuxaudio.org> wrote: > On Tue, May 03, 2011 at 07:15:29PM +0530, umashankar mantravadi wrote: >> >> in fact angelo recommended that i arrange the eight speakers as two crossed >> squares. two speakers in front and back, and four speakers mid bottom left >> and right and mid top left and right, the only problem is i do not see a >> readymade decoder > > A variation on this is an horizontal rectangle, 1 unit wide and 1.73 deep, > and a vertical rectangle in the YZ plane 1 unit high and 1.73 wide. > Or the same rotated 90 degrees. Looking from above you see an hexagon. > > This somewhat improves the rE for horizontal directions (not much), at > the expense of all others. Anything outside the +/- 30 degrees elevation > region will become very fuzzy.
I had one of these set up at home for a couple of days and found it better than a horizontal hexagon. The impression of height is a welcome addition to the sense of envelopment. I had a fader set up in Bidule so you could change the Z gain to compare horizontal-only with periphonic. The entire listening panel (my son and I) preferred having the height info, but the rest of the family didn't appreciate having a couple of ladders in the living room. I also tried it with the vertical rectangle in the XZ plane. That works too. Contact me off list if you want the Ambdec config files I used. Aaron Heller <hel...@ai.sri.com> Menlo Park, CA US _______________________________________________ Sursound mailing list Sursound@music.vt.edu https://mail.music.vt.edu/mailman/listinfo/sursound
