I've posted two new externals at
http://www.macalester.edu/~bsaylor/
aenv~:
An ADSR curved envelope generator for nice synth envelopes. The output value curves to the target values as asymptotes. (much more efficient than my vadsr~ abstraction)
zhzxh~:
Turns the input signal into a staticky, distorted mess. Comes with tone control.
Ben