Studio EQ is a high-quality 4-band parametric stereo equalizer. All four bands can act as fully parametric peak filters. In addition, the low and high bands can act as either shelving filters (three types) or as cut filters (low-pass/high-pass).
Main Layout
- Reset
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Alt/Opt-click this button to reset all parameter values.
- Show Input/Output Spectrum
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Shows the spectrum before and after filtering.
- Output
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Adjusts the overall output level.
- Auto Gain
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If this button is activated, the gain is automatically adjusted, keeping the output level nearly constant regardless of the EQ settings.
Band Settings
- Activate/Deactivate Band
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Activates/Deactivates the corresponding band.
Note-
If a band is deactivated, you can still modify its parameters.
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- Freq
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Sets the frequency of the corresponding band. You can set the frequency either in Hz or as a note value. If you enter a note value, the frequency is automatically changed to Hz. For example, a note value of A3 sets the frequency to 440 Hz. When you enter a note value, you can also enter a cent offset; for example, A5 -23 or C4 +49.
Note-
You can adjust the Freq parameter of a band in the graphical editor by Alt-clicking the corresponding handle and moving the mouse left and right.
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To ensure that the cent offsets are taken into account, enter a space between the note and the cent offset.
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- Inv
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Inverts the gain value of the filter. Use this button to filter out unwanted noise. When looking for the frequency to omit, it sometimes helps to boost it in the first place (set the filter to positive gain). After you have found the frequency of the noise, you can use the Inv button to cancel it out.
- Q
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For Peak filters, this parameter controls the width of the band. For Shelf filters, it adds a drop or a boost, depending on the gain setting of the band. For Cut filters, it adds a resonance.
Note-
You can adjust the Q parameter of a band in the graphical editor by Shift-clicking the corresponding handle and moving the mouse up and down. Alternatively, you can point to the handle and turn the mouse wheel.
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- Gain
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Sets the amount of attenuation/boost for the corresponding band.
Note-
You can adjust the Gain parameter of a band in the graphical editor by Ctrl/Cmd-clicking the corresponding handle and moving the mouse up and down.
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This parameter is not available for Cut filters.
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- Filter type
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For the low and high band, you can choose between three types of shelving filters, a peak filter, and a cut filter. If Cut mode is selected, the Gain parameter is fixed.
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Shelf I adds resonance in the opposite gain direction slightly above the set frequency.
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Shelf II adds resonance in the gain direction at the set frequency.
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Shelf III is a combination of Shelf I and II.
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