O3A Upmixer - Cube

Host Support

Host Type	Support
AAX	Yes, input mapped to 7.1
VST2	Yes

Audio

	Channels	Content
Input	8	Cube (mapped to 7.1 for AAX)
Output	16	O3A

Controls

Mode

Description

This plugin takes an eight channel mix designed to feed eight speakers set out at the corners of a cube and converts it to third order ambisonics (O3A).

Channels

The channel ordering used is:

Channel	AAX/VST
1	Lower Front Left
2	Lower Front Right
3	Lower Back Right
4	Lower Back Left
5	Upper Front Left
6	Upper Front Right
7	Upper Back Right
8	Upper Back Left

The plugin is available in the O3A Upmixers plugin library.

Controls

Control: Mode

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 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.

O3A Upmixers