It appears that current iteration of freeverb~ is susceptible to denormals bug. Namely, feeding silence after sound hogs cpu (I chuckled by reading Pd's CPU footprint which was in excess of 400%). Adding a tiniest amount of DC bias inside Pd solves this but I wonder shouldn't this be simply added to the freeverb c code instead?
Ivica Ico Bukvic, D.M.A. Composition, Music Technology Director, DISIS Interactive Sound & Intermedia Studio Assistant Co-Director, CCTAD CHCI, CS, and Art (by courtesy) Virginia Tech Dept. of Music - 0240 Blacksburg, VA 24061 (540) 231-6139 (540) 231-5034 (fax) ico@vt.edu http://www.music.vt.edu/faculty/bukvic/