An HTML5 experiment.
Drag an audio file to the browser window. It will be played directly from your hard disk, and you'll have a neat spectrum visualization.
Here is the demo
Here is the docco-generated documentation, which makes for a decent tutorial
- Web Audio Api (for playback and analysis)
- File access (for local playback)
- Native drag and drop (for, you know, drag and drop)
- Canvas and css transforms (for the things you see)