Analysis

Loading sources from disk, connection, and magnitude reading

This example demonstrates how to analyze the spectrum of a signal. An audio file is loaded, connected to an FFT analyzer, and its magnitudes are printed. This flow allows you to measure spectral energy and monitor sound content during graph execution.

// 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)

// Configure the spectrum analyzer in stereo mode
let destination = Analyzer(channels: .stereo, fftSize: 1024)

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

// Get real-time audio magnitudes
print(destination.magnitudes())

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.