Recording (Bounce)

How to bounce from an source into a stereo file in offline mode

This example demonstrates how to record and generate a final mixdown using the offline rendering mode. The flow plays a source from file, routes it through a Recorder node, and captures the processed audio signal in real time, producing a stereo output file.

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

// Configure an audio source (Renderer) from a local audio file
let url = URL(fileURLWithPath: "/path/to/source.mp3")
let source = FileRenderer(contentsOf: url)

// Configure the intermediate stereo recording node
let destination = Recorder(channels: .stereo)
context.addAutomaticPullNode(node: destination)

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

// Start recording
destination.record()
context.startOfflineRendering()

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.