Web Audio API

The Web Audio API is a W3C web standard for generating, processing and playing sound in the browser with JavaScript.

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The Web Audio API is a browser interface, standardized by the W3C, for generating, processing and playing sound with JavaScript. It connects audio nodes to synthesize sound, apply effects and control output. Compared with the HTML audio element, which mainly plays audio files, it offers finer control over how sound is generated and processed.

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Opus 5.5 was asked to build an animated short as a self-contained HTML file using vanilla JavaScript canvas drawing and sounds made with the Web Audio API.


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