[Vorbis-dev] Mapping = 1 Ambisonic Vorbis flag

[Richard Lee]

Where can I find the Header file or whatever which specifies the "Mapping" flag.

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

Has this been written explicitly into the standard?

Which standard should I be looking at?

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 ( more than 3rd order Ambi)



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