Export 6 channel spatialized audio (ambix + HL) for Youtube

Hi everyone, this is my first post :slight_smile:

I would like to understand how Combine 4-channel and head-locked ( 6ch ) into a single track with the new audacity version 3.0.2 :
The method for exporting uncompressed files has changed and now under “other uncompressed files” it is no longer possible to select WAV -32bit float.
On youtube and blogs we only refer to the method present in the previous version of audacity …
I would like to understand how to properly export my spatialized audio with the new version.

thank you
Schermata 2021-05-22 alle 12.52.31.png

“File menu > Export > Export as WAV”, then select “32-bit float” as the “Encoding”.

Thank you!