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Chapter 5 Equalizers 116
Single-Band EQ
The single-band EQ can operate in several modes. When you choose an EQ from the EQ Mode
pop-up menu, the parameters shown below change. You can choose:
•
Low Cut or High Cut Filter: Low Cut Filter attenuates the frequency range that falls below
the selected frequency. High Cut Filter attenuates the frequency range above the
selected frequency.
•
High Shelf or Low Shelf EQ: Low Shelving EQ aects only the frequency range that falls
below the selected frequency. High Shelving EQ aects only the frequency range above the
selected frequency.
•
Parametric EQ: Parametric EQ is a simple lter with a variable center frequency. It can be used
to boost or cut any frequency band in the audio spectrum, either with a wide frequency range
or as a notch lter with a very narrow range. A symmetrical frequency range on either side of
the center frequency is boosted or cut.
Single-Band EQ parameters
•
Frequency slider and eld: Drag to set the cuto frequency.
•
Gain slider and eld (Shelf and Parametric lters only): Drag to set the amount of cut or boost.
•
Slope pop-up menu (Cut lters only): Choose the amount of cut, in decibels per octave. The
higher the value, the more pronounced the eect.
•
Q-Factor slider and eld: Drag to set the Q (bandwidth).