Title: SiImpactUserManual_V1.4_screen_original.pdf
This filter 'cuts' low frequencies according to an 18dB/Oct slope that turns down just before the cut-off frequency. Use it to filter out low frequency 'rumble' and clean up live microphone feeds, for example.HPF On/OffSwitches the High Pass Filter on and off.Pressing and holding the key will activate Interrogate mode for this function (see Mix Features 8.3).7.2.1: DSP ELEMENTS > ACS > INPUTUser Manual7.2.2: ACS GATE SECTIONDSP ELEMENTS > ACS > GATEA Gate is a threshold-driven gain reduction process normally used to attenuate a signal when its level falls below the Threshold. Setting the Threshold just above a noise floororbackgroundnoise,forexample, will allow the Gate to attenuate the source during periods when the main input (voice, instrument etc) is silent.