Playback (Rate)

Configuring reduced-rate playback with precision

This example demonstrates how to adjust the playback speed of an audio source. A stereo file is loaded and played at 70% of its original rate. This type of control is ideal for slow-motion effects or rendering tests, allowing precise evaluation of temporal modifications.

// 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/audio.mp3")
let source = FileRenderer(contentsOf: url)

source.playbackRate = 0.7

// Configure node connections
try context.connect(source: source, 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.