Originally Posted by Dan Hitchman
What do you envision instead as a viable consumer option? Hear any rumblings?
Remember, the biggest, fattest, delivery pipe we have is Blu-ray. It might get fatter when 4k comes. Regardless, it will not support 100 simultaneous lossless objects.
In addition, it is not bitrate efficient to deliver 11.2 channels, nor is it necessary. 7.1 would be the optimum choice.
I hope we're not sliding backwards in regards to audio resolution and the use of lossy audio rather than lossless or dumbing things down from what commercial theaters get. At the start of the home theater renaissance and up to now, it almost seemed like consumer media (at least in pre-packaged physical formats) usually got better audio quality than even the cinemas.
The cinema has one thing that consumer formats do not: boundless capacity. Want 3D, sure, just double the video. Want high frame rate? Double it again. Want more channels/objects? No problemmo. The DCP hard drives can handle it all. BD, not so much.
Something that may not be obvious when talking about audio compression is that object audio is a totally different animal. It offers options that never existed before. Just as an example, consider the 7.1 channels. They can be losslessly coded. So can objects. But objects can also be coded as lossy, and if some object sounds are more demanding than others, they can use different bitrates as necessary to maintain quality. So we could have objects coded losslessly and lossy -- at different bitrates, all on the same movie with lossless channels. None of this was possible before.
The more that objects are delivered with lossless, the fewer objects there will be -- they will just be mixed into the main channels. Which is more lossy, the lossy coding, or the total loss of access to the object? As a consumer, you will get to choose and compare: The entire movie presented as lossless 7.1, or the object presentation with hybrid coding.Edited by Roger Dressler - 7/21/13 at 10:13am