Ambi Encoder Ray Bilocation
s3g Ambi Encoder Ray Bilocation gives one mono source two simultaneous acoustic bodies. Space A and Space B each retain an independent direct path, early-reflection field, late response, movement history, and Doppler behavior before they are combined into a fixed 64-channel ACN/SN3D output.
Workflow
- Insert the plugin on a 64-channel track, select the ambisonic
ORDER, and route a mono source to its input. - Follow it with an ambisonic decoder.
- Choose a contrasting atlas pair or load independent
.s3grayfields for A and B. - Set
PLACE,PERMEABILITY,MEMORY, andSEPARATION. - Map source motion across both spaces and balance their room controls.
Bilocation Topology
PLACE sends new source energy toward A or B. PERMEABILITY changes the transition from a narrow boundary into a broad region where both fields are excited. The send uses a smooth equal-power law, so the centre is a real dual presence rather than an interpolation between room descriptors.
MEMORY controls how quickly the return gate closes after a field stops receiving new energy. The abandoned field continues processing, allowing its early paths and late response to remain audible while the destination field materializes. At zero, the boundary is abrupt; longer settings carry a fading acoustic wake across it.
SEPARATION rotates the complete A and B ambisonic scenes in opposite directions. At zero degrees the fields share one directional frame. Larger settings unfold them toward opposing regions without changing either room's path lengths.
Field Listen
Field Listen runs independently inside the two linked Ray encoders. Each space analyzes only its own early and late response after that branch's Width and Separation rotation; neither direct path participates. FOLLOW therefore reinforces the recently dominant character of A and B separately rather than making both spaces converge on one shared response. COUNTER favors opposing arrivals, while BALANCE restrains dominant regions.
The two control-feedback loops remain bounded and energy-normalized. They alter directional room gains without changing either field's geometry, delays, Doppler, decay, or the bilocation send and return-memory topology. OFF preserves the fixed authored responses and is the default.
Position Mapping
The two large maps show both acoustic worlds at once. Drag either map to set shared normalized source or listener X/Y, select SRC or LIS at the central membrane, and use the Z controls below. Coordinates are mapped independently into each field's navigation bounds.
LINKED: the same normalized source trajectory inhabits both spaces.MIRROR XorMIRROR Y: B reflects one axis of A's movement.COUNTER: B inverts all three source axes, producing opposed motion.
The listener uses linked normalized coordinates in both spaces. MOVEMENT and DOPPLER retain the behavior of the single-space Ambi Encoder Ray.
Contrasting Pairs
PAIR loads two existing Ray Atlas fields plus a composed bilocation character. The eight pairs are Timber / Metal, Ice / Dry Stone, Open / Buried, Meadow / Impossible, Concrete / Water, Brick / Folded, Limestone / Conduit, and Flutter / Porous. They deliberately contrast scale, scatter, width, air damping, tail behavior, motion mapping, permeability, memory, and angular separation.
LOAD A and LOAD B independently accept version 1 .s3gray Ray Fields. Both imported fields are embedded in project state, and either space can be replaced without interrupting the audio path.
Controls
| Control | Meaning |
|---|---|
| DIRECT / EARLY / LATE | Set the shared component balance. |
| SIZE / SCATTER / WIDTH / AIR | Set the independent character of each space. |
| FIELD LISTEN | Selects Off, Follow, Counter, or Balance for two independent room-only listening loops. |
| ORDER | Selects first through seventh order. Direct energy uses the selected order; both room fields use up to third order. |
| BYPASS ROOM | Removes early and late energy in both fields while preserving the two direct encodings. |
| OUTPUT | Sets final gain after a shared linked safety stage protects the combined ambisonic field. |
Order and Routing
The output bus remains 64 channels wide. The selected order activates the corresponding ACN channels and clears the remainder.
| Order | Active channels |
|---|---|
| 1OA | 4 |
| 2OA | 9 |
| 3OA | 16 |
| 4OA | 25 |
| 5OA | 36 |
| 6OA | 49 |
| 7OA | 64 |
Insert the plugin on a 64-channel track and send a mono source to its input. The processor reports the longer of the two room tails plus the selected memory interval.