UHJ Decoder - Quad
Host Support
| Host Type | Support |
|---|---|
| AAX | Yes |
| VST2 | Yes |
Audio
| Channels | Content | |
|---|---|---|
| Input | 2 | UHJ Stereo |
| Output | 4 | Quad |
Controls
Description
This plugin renders four-channel surround for a quad array speaker from a UHJ Stereo input, using an algorithm based on a design by Michael Gerzon from 1980.
The algorithm used implements shelf filters, and Forward Preference with three settings. This plugin does not perform distance compensation.
Channels
The channel ordering used is:
| Channel | AAX/VST |
|---|---|
| 1 | Front Left |
| 2 | Front Right |
| 3 | Back Left |
| 4 | Back Right |
UHJ Stereo signals can be produced from Ambisonic mixes using plugins like the O1A or O3A Decoder - UHJ Stereo.
The plugin is available in the UHJ Decoding plugin library.
Controls
Control: Forward Preference
This control affects the phasiness and gains produced by the decoder. Three settings are available:
| Label | k' | Description |
|---|---|---|
| Centralised | 0.000 | Same phasiness at front and back |
| Balanced | 0.300 | A balance between the extreme settings |
| Omni | 0.677 | Same gain at front and back |