Title: SiImpactUserManual_V1.4_screen_original.pdf
It does not attenuate the reflections. High frequencies are often rolled off with this parameter, resulting in more natural-sounding reverberation. Setting a low frequency for this parameter can actually shorten the reverb time, as it damps the audio as it recirculates10.1.1: LEXICON FX > REVERBS > REVERB PARAMETERSUser Manual10.1.1: REVERB PARAMETERSLEXICON FX > REVERBS > REVERB PARAMETERSShapeAdjust the 'contour' of the reverberation envelope.With Shape all the way down, reverberation builds explosively, and decays quickly. As Shape is advanced, rever- beration builds up more slowly and sustains for the time set by Spread. With Shape in the middle, the build-up and sustain of the reverberation envelope emulates a large concert hall (assuming that Spread is at least halfway up, and that Size is 30 meters or larger).SpreadAdjust reverb onset and sustain.