This is a project made during Malmö Music Hack Weekend 2013. The project uses HTML5 audio (in Chrome) together with some basic signal processing to detect notes that are whistled in a certain order.
The system has some severe security issues, don't use in production. ;)
Currently the demo only works in Chrome.
Hint! Try whistling the notes C, D, E in order (it doesn't have to be in correct pitch).