This goofy app lets you:

• upload local files to the browser, then play them in the browser with the JavaScript Web Audio API
• play an oscillator from the Web Audio API
• load a sound from the server and play it with JavaScript

The sounds are analyzed in a little bar chart underneath (with an analyserNode).

Live on Heroku.

/lib/audio.coffee handles loading files from the server and starting and stopping buffers.

/lib/file.coffee handles working with File & FileReader objects to list them on the page and play them with the code from audio.coffee.

/lib/chart.coffee provides the chart for the analyser node

/program.coffee is a sloppy mess to tie it all together.