[tension] http://xaero.ath.cx:2005/pd/tension-0.1.tar.gz
tension takes a (float) input in the range 0...1 and scales it to a log/exp/lin scale, depending by its argument (2nd inlet), which could be negative or positive. (have a look at the help patch to click'n'see)
if you don't figure how this could be useful, ignore me. note that this is my first external, and also i am not a math guru, so the used formula may be wrong. (just it works for me..., i used it to make better envelopes)
if you use it tell me any bugs or how to improve it.
bye