Seems your browser has no support for Web Audio. Try with a recent Chrome, or maybe Safari or some other Webkit based browser.
This is kind of a toy or explorer thingy which lets you play with Web Audio API. It can play, record and generate audio and apply different kinds of effects.
To get you started, a file node and output is created right away. Just drag and drop a Audio file (mp3, ogg or whatever) from your computer to the file node.
Then to get sound out of the speaker, drag the right handle of the file node to the left handle of the output. And voila, there should be sounds coming out of your speakers.
But the fun starts when you connect together a combination of nodes. So you can really make your music sound bad or just create some strange sounds.
When you have created some cool effect. Use the Save, Load & Share buttons to save it locally or share it with the world.
You have not saved anything yet...
You can play it with your keybord using the ZSXDCVGBHNJMQ2W3ER5T6Y7U keys.