pittsoccer33 wrote:I've wondered why Sony, kings of proprietary technologies (well they could rival Apple) never started putting SDDS into their receivers and onto their DVDs. They never tried to get it into the home.
I think the big issue for that was that it created 8 discrete audio channels - five 'stage', stereo surround, low freq effects (LFE). While I personally much preferred having more channels behind the image for smoother panning, only something like 5% or 6% of the films that had SDDS soundtracks actually made use of all eight audio channels; most were straight up 5.1 mixes, as the vast majority of theaters that installed SDDS decoders didn't go to the additional (and substantial) expense of adding more speakers behind the screens and more power amps in the backline. Sony stopped making new encoders and decoders about ten years ago.
The overall audio quality wasn't that good (5:1 compression, low bit rate) with SDDS, but the expansion of the soundstage with the two extra screen channels was pretty impressive. The only two 8-channel SDDS mixes I ever experienced were "Star Wars Episode I" and "Black Hawk Down", both extremely good examples of film sound in general. And both films were top notch presentations in world-class theaters.