O3A Decoder - Cube

O3A Decoder - Cube

Host Support

Host TypeSupport
AAXYes, output mapped to 7.1


Output8Speaker feeds for cube (mapped to 7.1 for AAX)



This plugin takes a third order ambisonics (O3A) mix and decodes it as speaker feeds for eight speakers set out at the corners of an cube.


The channel ordering used is:

1Lower Front Left
2Lower Front Right
3Lower Back Right
4Lower Back Left
5Upper Front Left
6Upper Front Right
7Upper Back Right
8Upper Back Left

Note that these are mapped directly onto a 7.1 output in the AAX version of the plugin.

The plugin is available in the O3A Decoding plugin library.


Control: Method

Three methods are supported, "Basic", "Reconstruction" and "Tinted Reconstruction". Generally, "Basic" is recommended except where the speaker rig to be used for playback is known and has been set up accurately.

BasicThis method produces a resilient decoding which should play well on a range of speaker systems including large venues.
ReconstructionThis method controls the soundfield at the centre of the listening space to produce a clearer spatial image. It relies on the speaker layout being set up accurately.
Tinted ReconstructionThis variant of the Reconstruction method performs HRTF-based tinting on the audio stream to strengthen the spatial image. Again, it relies on the speaker layout being set up accurately.