s2m.resFS1~ A parametrically well behaved two pole filter. Center frequency and damping can be changed without producing discontinuities in the filter output. s2m.resFS1~ implement a 2nd order digital resonator, using the method described by M. V. Mathews and J. O. Smith in their SMAC03 paper : "Methods for synthesizing very high Q parametrically well behaved two pole filters,". Center frequency and damping can be changed without discontinuities problems. See the help patch for details

from the library : s2m Format : External Environment : msp freeware Max 5.x / 6.x http://metason.cnrs-mrs.fr/Resultats/MaxMSP/