Incompatibility with existing HOA Ambisonics implementations

[kronihias]

Hi,
the spherical harmonics implementation has some problems regarding scaling and phase of the components which leads to incompatibilities with other software of Ambisonics content generated with the HOA Library.

I already added this bug report in the HoaLibrary-Light, however it might be a good idea to have it here as well. Please refer to this issue for details:
CICM/HoaLibrary-Light#3

Best,
Matthias