The Essentials
Here is an EQ setup using +5 dB of high-frequency shelving at 8 kHz:
47
SCREENSHOT 2.7 High-frequency shelving
Here’s another set of parameters using -5 dB of low-frequency shelving at 120 Hz:
SCREENSHOT 2.8 Low-frequency shelving
Shelving provides particularly smooth-sounding alterations in frequency and is commonly used when a broad increase or decrease in either high or low frequencies is desired.
High- and Low-Pass Filters This refers to EQ that sharply limits either high- or low-frequency sounds while allowing all other sounds to “pass” through the filter unaffected. The terminology can be a little confusing: high-pass filters reduce (filter) the low frequencies and allow the high frequencies to pass through, while low-pass filters reduce the high frequencies and allow the the lower frequencies to pass through. You may be able to adjust both the frequency for the passing filter and how steep the drop-off is on the filtering.