[LAD] LV2 port groups

[Jörn Nettingsmeier]

David Robillard wrote:
> On Sun, 2009-08-16 at 15:22 -0400, David Robillard wrote:
>> Should the order of channels within a group (which mustn't have gaps)
>> just match the ACN order?  This is different from FuMa.
>>
>> e.g. directly substituting names gets you something like:
>>
>> AmbisonicBH1P1Group
>> "Ambisonic B stream of horizontal order 1 and peripheral order 1."
>> 0: ACN0 (formerly w)
>> 1: ACN3 (formerly x)
>> 2: ACN1 (formerly y)
>> 3: ACN2 (formerly z)
>>
>> Should this be:
>> 0: ACN0
>> 1: ACN1
>> 2: ACN2
>> 3: ACN3
>>
>> (No gaps in this case, but H2P0 has channels(*) 0 3 1 8 4, so I'm
>> asking...)
> 
> Once again replying to myself (done with this soon, promise :])
> 
> Found this: http://ambisonics.ch/standards/filetypes/contents
> 
> I assume in order makes the most sense, random order derived from FuMa
> can't be sane

yes.
gaps are also ok for mixed order, but in all cases the components should
be ordered by ascending ACN.