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What is EQ?
The EQ (equalization) is the process of adjusting the
balance between frequency components within an
electronic signal. In sound recording, EQ is used to
improve an instrument's sound or make certain sounds
more prominent, it may also be used to eliminate or
reduce unwanted sounds.
The main EQ filter types are:
- high pass and low-pass filters
A high pass filter passes higher frequencies well
but attenuates (cuts or decreases) lower frequency
components. A low pass filter passes low-frequency
components of signals while attenuating higher
frequencies.
- shelving filters
Shelving filters can be used to reduce or increase signals
above or below a set frequency