15th January 2011
It's all about standards
44,1 because SDDS can print digital signal encoded at 44.1khz, on 35mm film
96 because DTS standards are 24/96khz
48 because Dollby Digital standard delivery is 24/48 and because Broadcasting standard is 48khz and no, it's not about float because when you speak about broadcasting you speak 25fps and 30fps, not 24fps, not 29,970fps, not 23,976fps. If they would care about your concept => 44,1 at 25fps = 1746 and 44. at 30fps=1470: so no float here.
Why they set this standards ? I think for marketing. It really sound better ? Maybe you'll feel differences on a nice acoustic room on some nice speakers, PMC, B&W bla bla.
It's worth ? Probably if you watch the movie on 1080p on a nice anamorphic screen while listening 24/96 on 5.1 speakers from PMC, in a nice acoustic space.