JavaScript Audio Spectrum Analyzer

Question

Is there a JavaScript equivalent to ActionScript's channel.leftPeak or channel.rightPeak. This is used for sound programming such as for a VU meter. I am trying to build a sound application, but I was avoiding using Flash and ActionScript since it is for a website. I was wondering if it was possible to do it in JavaScript. The basic concept is just play a song and be able to see the visualization of it through the spectrum analyzer or VU Meter.

Answer 1

What you need, based on your question, is JavaScript SoundManager2 plugin.

The demo page for the Spectrum Analyzer / VU Meter visuals are HERE

Screenshot:

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Edit: Also consider wavesurfer.js featuring "Seekable waveform using WebAudio and Canvas".