formant filter / speech synthesis

has anyone done any formant filters in JS, or have any info, pointers, url's for learning more? most of the info i've found so far (via google, etc) is either just scratching the surface, or very mathematically (i understand code and algorithms, but not much of those weird symbols or academic language, heh) i have a quite crappy prototype up and running, but it's ported from some 4k intro souce code, and therefore heavily optimized for size and simplicity, not quality or 'understandability'... but it gave me a lot of ideas and inspiration my plan is to define a set of phonemes using noise/saw/square oscillator and formant filters, and some additional stuff for plosives and stuff. then select/play those via midi notes and/or controllers. - ccernn

another update, a small preview: - ccernn

mmm that's really rad!

must...have...this... other.wise...must...destroy...internet...

update partially in progress 

i have been planning to continue with the speech synth stuff, but wanted to find a good way to control all the phonemes and plosives and filters, etc... in realtime. i have some ideas (and i've learned a few things, and some tricks), so hopefully there will be an update, or a completely new, playable (speakable?) version soon. - ccernn

It seems to me the "additive synthesis" approach everyone takes to speech synthesis is a ... terminally complex approach. Has anyone tried to model the entire vocal tract, and get phonemes out of altering the model?