What are the Ambisonic specs/format supported ?

Hi,

I have produced some VR content with ambisonic 1st order audio. This audio format is the one supported by the quest2 and my audio is correctly spatialized when I play my files with the Oculus file player.

But when I play those files in the Play'A the audio isn't spatialized and no head tracking happens for audio.

I'm looking for a confirmation of what audio specs/format is supported/recomanded to be used with Play'A.

Thanks in advance.