Formant.js is a little synth experiment implementing a formant filter synth using the web audio api. It will probably work well in some browsers and on some devices, on others maybe not. The idea of formant filters is to simulate wovel sounds of humans, in this example using the biquad filter node.

To me the web audio api looks quite interesting, but also somewhat limiting at the moment, not being able to write and modify buffers efficiently in real time. There is a script processor node, but javascript just isn't fast enough.

I think the resulting sounds though are quite nice and its a fun platform to play with. Use the keyboard or multitouch to play. On iOS you can add to home screen for running the app full screen. Have fun! :)

ERik - @humbletune.com