'Physical' envelopes (amplitude and filter) physical modelling of how sounds in real world decay & resonate, for example, the sound of a water drop. Improved the sound quality, with even more accurate waveshapes, and quicker rendering times. Toxic Biohazard includes following enhancements. With the addition of a warm, analog-modelled filter and set of built-in effects, the Toxic concept remains one of convenience, simplicity, and superb sound quality. Toxic Biohazard features a hybrid synthesis engine, combining the best of FM and Subtractive synthesis.