De-essing with a channel equaliser under Automix control: Once you&#039;ve set up the Hi-Mid EQ band&#039;s frequency to something sensible for de-essing (inset), you can switch on the Waveform Display and the Scrub function during Automix recording, isolating and ducking rogue patches of sibilance comparatively quickly using the data wheel and the PRM Edit Hi-Mid Gain encoder.