O3A Upmixer - Cube

O3A Upmixer - Cube

Host Support

Host TypeSupport
AAXYes, input mapped to 7.1 stem
VST2Yes

Audio

ChannelsContent
Input8Cube (mapped to 7.1 for AAX)
Output16O3A

Controls

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:

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

ModeDescription
InferredThis 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.
VirtualThis 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.