This isn't innovation. AC-3 is almost 20 years old, and wasn't very good even for the time (it was designed for high-bandwidth optical discs). Dolby Digital Plus is an extension whose primary purpose is to extend their patent licensing regime.
Innovation would have been using Opus (full disclosure: I'm one of the authors of Opus).
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Microsoft is trying real hard to make Edge successful. Competition really does wonders for innovation.
This isn't innovation. AC-3 is almost 20 years old, and wasn't very good even for the time (it was designed for high-bandwidth optical discs). Dolby Digital Plus is an extension whose primary purpose is to extend their patent licensing regime.
Innovation would have been using Opus (full disclosure: I'm one of the authors of Opus).