Getting Started

libsonare is a C++17 audio analysis library for music information retrieval (MIR).

Features

• BPM Detection - Accurate tempo estimation using tempogram and autocorrelation
• Key Detection - Musical key detection using Krumhansl-Schmuckler algorithm
• Beat Tracking - Dynamic programming-based beat extraction
• Chord Recognition - Template matching with 84 chord types
• Section Detection - Structural segmentation (Intro, Verse, Chorus, etc.)
• Audio Characteristics - Timbre, dynamics, rhythm analysis

Quick Start

Package Not Published

The npm package @libraz/sonare is currently in beta and not yet publicly available. See Installation for alternative options.

Browser (WebAssembly)

import { init, analyze } from '@libraz/sonare';

// Initialize the WASM module
await init();

// Analyze audio samples
const result = analyze(samples, sampleRate);

console.log('BPM:', result.bpm);
console.log('Key:', result.key.name);
console.log('Chords:', result.chords);

Node.js / C++

See Installation for native usage.

Try It Now

Visit the Demo to try libsonare in your browser. Simply drag and drop an audio file to see the analysis results.