Can the Web Audio API be utilized to record and alter the output of a browser?

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Yes, the Web Audio API can be used to record and alter the audio output of a browser. The API provides a number of audio processing modules that can be used to apply various effects or filters to the recorded audio. By using the getUserMedia API to capture the audio output of the browser, developers can create their own custom audio processing pipelines in JavaScript. This can be useful for creating web-based audio editing tools or for adding custom audio effects to web-based applications.