Stereo Spatialization

How to distribute the signal across channels with stereo spatialization

This example demonstrates how to spatially position a stereo signal in the sound field using the StereoSpatializer node. This processing node controls the energy distribution between channels, creating a sense of movement, width, and/or direction.

// Configure the graph for rendering
let context = Assembler(rendering: .live).createAudioGraph()

// Configure an audio source (Renderer) from a local audio file
let url = URL(fileURLWithPath: "/path/to/source.wav")
let source = FileRenderer(contentsOf: url)

// Configure a stereo spatializer with pan shifted to the left
let destination = StereoSpatializer(pan: -1.0)

// Configure node connections
try context.connect(source: source, to: destination)
try context.connect(source: destination, to: context.destination)
source.play(after: 0)

The following video shows the sample code in action and its real-time processing.

For a complete description of each class, method, and property referenced in this section, refer to the official API documentation, where you will find detailed references, available components, parameters, and additional usage code examples.