Drag'n'drop your favorite -file here!
Customizable waveform audio visualzation built on top of WebAdio and HTML5 Canvas (plus, optional SVG renderer). With wavesurfer.js you can assemble a full-featured HTML5 audio player or create a sophisticated DJ application.
wavesurfer.js runs on modern browsers supporting WebAudio. Including Firefox, Chrome, Safari, Mobile Safari and Opera.
var wavesurfer = Object.create(WaveSurfer);
wavesurfer.init({
container: document.querySelector('#wave'),
waveColor: 'violet',
progressColor: 'purple'
});
wavesurfer.on('ready', function () {
wavesurfer.play();
});
wavesurfer.load('example/media/demo.mp3');
The full list of options and methods can be found in README.
Thanks to open API (everything is public) it's easy to write wavesurfer.js plugins.
Reads ELAN files and displays audio annotations as an interactive widget. ELAN is parsed into a JavaScript object (quite literally) plus some denormalization. See an example here: http://wavesurfer.fm/example/elan.