Our experience of an acoustic environment depends to a large extent on the relationship between the sound waves arriving from different directions, not on their separation. As in life, so it is in Ambisonics, which utilizes both phase and level information to recreate the soundfield. The relationship between the information channels is vitally important. It will quickly become clear to any intelligent reader that far from being ravings of fanatics, the modest proposals for the addition of two digital flags in the DVD audio data stream make a lot of sense. The difference is obvious.
Compression enables more data to be recorded on the disc.
Ths sntnce is readbl. This sentence is readable. The second proposal from the ARA is that there should be a flag to indicate the presence of hierarchically-encoded surround sound systems. A hierarchical surround system is one which offers compatibility all the way from full surround down to mono. The UHJ transmission system utilized by Ambisonics is an example of such a system, though by no means the only one.