On 3 May 2011, at 13:08, Richard Dobson wrote: > My proposed application is not music listening as such, but sonification of > particle collisions in the LHC. In the data, Z is the beam axis, and the most > interesting stuff has high transverse momentum, i.e. left right up down > across the beam axis. I can do a great deal just with horizontal surround > (the most obvious way of sonifying bipolar data, of which there is a lot), > but most collisions are very obviously 3D in space. "Normally", jets are > formed in symmetrical pairs e.g. one hard left, one hard right, but recently > they have found some instances where the jets were not exactly in opposite > directions, indicating (possibly) some new physics. So it will be important > to tell if two sounds are exactly opposite (180 deg in effect), or at a > narrower angle. There may be situations where being able to rotate the > soundfield in the classic B-Format way in order to choose an alternative > listener orientation would be useful.
Sure, in such a scenario you'd of course want Z-axis info, too. But then you may also need a more precise and stable localization. Naive guess would be something like two rings of six speakers at different horizontal levels would be a reasonable minimum. Here's a question for the experts: If one considers a cube arrangement as a minimum for 3D playback, which could be interpreted as two rings of four speakers at different horizontal levels, then why would one choose a cube over e.g. two "rings" of four speakers that are not only at different horizontal levels, but rotated by 45deg against each other. In other words, a setup that in projection wouldn't be a square, but an octagon? Ronald _______________________________________________ Sursound mailing list Sursound@music.vt.edu https://mail.music.vt.edu/mailman/listinfo/sursound
