trohling@uceng.UC.EDU (tom rohling) (12/15/89)
Are there plans to include the PI's audio features on other machines than just the PI's? I think it would be real nice to see it on the larger units where all of our work is done and would tie in nicely to the graphics and computations we need to run on the larger machines. Tom Rohling trohling@uceng.uc.edu
sd%chem@ucsd.edu (Steve Dempsey) (12/15/89)
In keeping with the spirit of things, the high end 4D's should have DOLBY multi-channel surround sound capabilities. After all, a machine capable of sophisticated 3D video imaging ought to support 3D AUDIO imaging as well. The first application could be a simulation of sonic booms in dogfight! Marketing types should love this. Imagine being able to claim to have the first workstation with a sub-woofer output. :-) -------------------------------------------------------------------------------- Steve Dempsey (619) 534-0208 Dept. of Chemistry Computer Facility, B-014 INTERNET: sdempsey@ucsd.edu University of Calif. at San Diego BITNET: sdempsey@ucsd La Jolla, CA 92093 UUCP: ucsd!sdempsey
blbates@aero4.larc.nasa.gov ("Brent L. Bates AAD/TAB MS294 x42854") (12/15/89)
Don't forget the stereo graphics for dogfight too. -- Brent L. Bates NASA-Langley Research Center M.S. 294 Hampton, Virginia 23665-5225 (804) 864-2854 E-mail: blbates@aero4.larc.nasa.gov or blbates@aero2.larc.nasa.gov
pepke@loligo (Eric Pepke) (12/16/89)
In article <8912142322.AA25307@chem.chem.ucsd.edu> sd%chem@ucsd.edu (Steve Dempsey) writes: >In keeping with the spirit of things, the high end 4D's should have DOLBY >multi-channel surround sound capabilities. After all, a machine capable of >sophisticated 3D video imaging ought to support 3D AUDIO imaging as well. DOLBY Schmolby. Do it like this. Include a DSP which is capable of generating at least two channels of CD quality sound at 44 KHz. This should be trivial; the NeXT can do this now, and you can buy better DSP's dirt cheap. Then, allow the user to specify sound sources in the same coordinate space as the graphics. Transform these points the same way the graphics coordinates are transformed. Then, provide some hearing transformations in the same spirit as the viewing transformations perspective and ortho. The most interesting would be binaural(headwidth); where headwidth is the width of the virtual head that follows around according to lookat and friends. This would cause the DSP automatically to calculate 1) the volume based on the distance of the sound source from the head, 2) the phase difference based on the differential beween the ears, and 3) slight frequency correcions based on a simplified model of sound absorption of the ears and the rest of the head. Next, wire the sucker into a virtual reality helmet, remove all breakable objects from the room, and provide rehabilitation for the survivors. :-) 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.