High Pass Filter (Hpf); Gate - PRESONUS revelator Owner's Manual

4 Presets, Fat Channel, and Voice Effects
4.2 Fat Channel and Voice FX

High Pass Filter (HPF)

4.2.1
4.2.2

Gate

Also known as a low-end roll-off filter, the High Pass Filter (HPF) lets you cut all
frequencies below a specified point, letting the frequencies above that point
pass through unchanged. This filter can be handy when you want to reduce
the "boominess" or "muddiness" of a vocal and improve the overall clarity.
Choose between 40 Hz, 80 Hz, and 160 Hz.
Power User Tip: When looking at frequency ranges in audio, it's important to know that
the smaller the number, the lower the frequency is. The 40 Hz and 80 Hz settings can be
especially useful in reducing the "rumble" from a nearby road or any background
electrical noise or hum.
If you would like more granular control, please see Section
6.2.1 on advanced High Pass Filter settings.
Noise gating is the process of removing unwanted sounds from your audio by
cutting (or attenuating) all signals below a set threshold. The gate will remain
"open" as long as the signal is louder than the set threshold. Noise gates were
originally designed to help eliminate extraneous noise and unwanted artifacts
from a recording, such as hiss, rumble, or transients from other instruments in
the room. Since hiss and noise are not as loud as the intended audio source
(You!), a properly set gate will only allow the intended sound to pass through;
the volume of everything else is lowered. Not only will this strip away unwanted
artifacts, it will also add definition and clarity to the desired sound.
Choose between Low, Moderate, and High. Low will provide
the least amount of gating, High will provide the most.
Ready to build your own gate? See Section 6.2.2 for advanced Noise Gate controls.
Revelator
Owner's Manual
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