O3A Upmixer - 22.2

Host Support

Host Type	Support
AAX	No
VST2	Yes

	Channels	Content
Input	24	Hamasaki 22.2
Output	16	O3A

This plugin takes a surround mix prepared for a Hamasaki 22.2 system and converts it to third order ambisonics (O3A).

The channel ordering used is:

Note that 22.2 needs 24 channels in total, which is even more than the 16 that O3A normally needs. Don't forget to check your DAW channel count.

The plugin is available in the O3A Upmixers plugin library.

Two modes are supported, "Inferred" and "Virtual". Generally, "Inferred" is recommended.

Mode	Description
Inferred	This mode is optimised for use with material that has been mixed using conventional panning techniques, such as equal-power panning or VBAP. The approach produces smooth transitions when sounds pass between speaker locations.
Virtual	This mode simply places each of the main (non-LFE) audio channels in their appropriate speaker direction. This can be worth trying when the mix has not been put together by conventional panning and the channels have a complex phase relationship.

Audio from the LFE channels can be mixed into the output by setting this dial. It is added to the stream as an omnidirectional signal.