[PD-announce] two new externals

[bsaylor at macalester.edu]

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