[Vorbis-dev] Mapping = 1 Ambisonic Vorbis flag

Richard Lee ricardo at justnet.com.au
Sat Sep 13 00:25:31 PDT 2008


> In feb - apr 2007, there was a lot of discussion about Ambisonics and Monty kindly stated that

> Mapping = 1	; Denotes and Ambisonic file as opposed to = 0 which is 1 speaker/ 1 channel

> http://xiph.org/vorbis/doc/Vorbis_I_spec.html#id342556

> specifies only Mapping = 0

> The reason why I'm searching for the actual physical definition of the flag is the unwashed Ambisonic Community would like this to be just a bit (bit 1) rather than a single value (Mapping = 1)

> That's cos we might want more bits from yus guys later if / when we have more than 16 channels

My apologies. Should be please can we have "bit0 set" to define Ambisonics.  This is compatible with Mapping = 1

Mea maxima culpa.  My excuse is kunt reed en rite ...  8>D

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