Limiter (Instantaneous)

Control of short overshoots/peaks with parameter configuration

This example demonstrates how to restrict transient peaks in an audio signal using the PeakLimiter node. Unlike a traditional limiter, this processing operates with short attack and release times, controlling transients without altering the overall dynamics.

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

// Configure a limiter and its dynamic parameters
let destination = PeakLimiter()
destination.ratio = 10.0
destination.threshold = -20.0
destination.attack = 0.01
destination.release = 0.05
destination.makeup = 0.0
destination.knee = 0.0

// 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.