Question 1

How to create a real-time audio visualization with web-audio-analyser?

Accepted Answer

Use `analyser.waveform()` or `analyser.frequencies()` in an animation loop (e.g., requestAnimationFrame) to get Uint8Arrays, then map the data to a canvas or SVG for drawing. You'll need a separate graphics library since it only handles data extraction.

Question 2

web-audio-analyser vs raw Web Audio API: which should I use?

Accepted Answer

Choose web-audio-analyser for quick prototyping or simple data access without deep API knowledge. For full control over audio nodes, effects, or complex graphs, the raw Web Audio API is better but more verbose.

Question 3

Can I use web-audio-analyser with microphone input?

Accepted Answer

Yes, pass a MediaStream from `navigator.mediaDevices.getUserMedia()` as the audio source. The library will internally create an AnalyserNode to extract real-time waveform or frequency data from the stream.

Question 4

Does web-audio-analyser work with audio from SoundCloud or YouTube?

Accepted Answer

It can, but you must set CORS headers correctly. As per the README, use `audio.crossOrigin = 'Anonymous'` on the audio element, and ensure the streaming service allows cross-origin requests, which isn't always guaranteed.

Question 5

Is web-audio-analyser compatible with React or Vue.js?

Accepted Answer

Yes, it's a plain JavaScript library, so you can integrate it by managing audio elements in framework lifecycle methods. For example, in React, use refs or effects to handle the analyser instance and update state for visualizations.

Question 6

What browsers support web-audio-analyser?

Accepted Answer

Support depends on the underlying Web Audio API. Most modern browsers (Chrome, Firefox, Safari, Edge) have good coverage, but check caniuse.com for specifics. The library itself adds no polyfills, so older browsers may fail.

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