pepke@SCRI1.SCRI.FSU.EDU (Eric Pepke) (02/20/91)
In article <810.27bc8714@venus.ycc.yale.edu> ap207nra@venus.ycc.yale.edu writes: > I am curious as to whether any VR systems currently make use of sound cues > along with the 3D visual image? Specifically, I am interested in the > current research being done on 3-dimensional sound production (virtual sound?) > When I say 3-D sound, I mean sound that can be localized in 3-D from signals > coming from stereo headphones. A friend of mine said that this is difficult > to achieve because of the variance of the pinnae from one person to another, > which influences our sound localization. VPL has a system that emulates binaural sound. It handles both the phase and volume information and the frequency information. If you want, you can stick electret microphones in your earholes and calibrate it for your head and pinnae. (I wonder what Jaron Lanier's frequency parameters look like? How many sabins does a dreadlock have?) The result sounds pretty good. It's not perfect, of course, but it's a better emulation of hearing than the eyephones are of sight. I don't think the pinnae variation is all that big a deal. Ordinary binaural recordings work fine for most people. If you ever get a chance, go to Disney/MGM studios in Orlando, FL. There is a binaural show there which produces amazing results with cheesy on-the-ear headphones. Eric Pepke INTERNET: pepke@gw.scri.fsu.edu Supercomputer Computations Research Institute MFENET: pepke@fsu Florida State University SPAN: scri::pepke Tallahassee, FL 32306-4052 BITNET: pepke@fsu Disclaimer: My employers seldom even LISTEN to my opinions. Meta-disclaimer: Any society that needs disclaimers has too many lawyers.
jcs@crash.cts.com (John Schultz) (02/21/91)
[stuff deleted] >VPL has a system that emulates binaural sound. It handles both the phase >and volume information and the frequency information. If you want, you >can stick electret microphones in your earholes and calibrate it for your >head and pinnae. [stuff deleted] I believe VPL utilizes Scott Foster's Convolvotron. The device uses real-time DSPs and costs around $27k. The device is available stand alone... John