Convolution (IR)

Convolution with impulse response for acoustic modeling

This example demonstrates how to apply convolution using an impulse response (IR). The IR node loads an impulse-response local file and uses it to filter a mono or stereo audio source, modifying its timbre and spatial depth with precise phase accuracy.

// 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 = MediaRenderer(contentsOf: url)

// Configure the impulse response (IR) from a local file
let impulse = URL(fileURLWithPath: "/path/to/impulse.wav")
let destination = IR(contentsOf: impulse, channels: .stereo)

// 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.