The QuadCurve Equalizer module can be displayed in either full size or compact size. The compact module hides the Frequency, Q and Level controls for the Low, Low-Mid, Mid-High and High bands. You may want to show the compact size if ProChannel is too tall to show all its controls in the Inspector or Console view.
To show/hide compact mode in the Inspector. Click the Display button at the bottom of the Inspector, point to Module Options > ProChannel and choose Compact EQ Module.
To show/hide compact mode in the Console view. Click the Console view Options menu, point to ProChannel and choose Compact EQ Module.Figure 484. QuadCurve Equalizer module.A. Clipping LED B. QuadCurve Equalizer enable/disable C. Style (Hybrid, Pure, E-Type or G-Type) D. Graph E. Band enable/disable (Low, Low-Mid, Mid-High, High) F. Frequency G. Q H. Level I. High band filter type J. Low Pass filter frequency K. Low band filter type L. High Pass filter frequency M. High Pass filter enable/disable N. High Pass filter slope (Q) O. Gloss enable/disable P. Low Pass filter slope (Q) Q. Low Pass filter enable/disableFigure 485. The equalizer has six bands.A. Low band (red) B. Low-Mid band (yellow) C. Mid-High band (green) D. High band (blue) E. High Pass filter (black) F. Low Pass filter (black)
Clipping LED. Shows if the input signal to the QuadCurve Equalizer module is clipping. If there is any distortion in the ProChannel signal chain, the clipping LEDs let you identify where the clipping occurs.
QuadCurve Equalizer enable/disable . Enables/disables the QuadCurve Equalizer module.
Style. Specifies the equalizer algorithm. Choose between transparent equalization (Pure) or equalization for character (Hybrid, E-Type and G-Type). Each style provides a different interaction between Q and Level settings. The styles are as follows:
Table 78. EQ types
Band enable/disable. Enables/disables the Low , Low-Mid , Mid-High and High bands. Enabling a band allows it to be processed with equalization. The knobs and graph curves are color-coded per band:
Frequency. Sets the center frequency for the selected band (Low, Low-Mid, Mid-High and High). The valid frequency range for each band is as follows:
Table 79. Default center frequency for each band
Q. Sets the width of the selected band (Low, Low-Mid, Mid-High and High), which determines the amount of surrounding frequencies that will be affected when adjusting the band. A low Q value gives a high bandwidth for the filter band, resulting in a smooth shaping of the sound and little audible 'coloration'. Filtering will however be less accurate, since a wide frequency range around the center frequency will be affected. A high Q value reduces the bandwidth, improving filter accuracy but also creating sharp dips or peaks in the frequency spectrum. The width of the Q is expressed in terms of octaves. The valid range is 0.1 to 16.0 and the default value is 1.3.
Level. Boosts or attenuates the selected band (Low, Low-Mid, Mid-High and High).The valid range is -18.0 dB to +18.0 dB and the default value is 0 dB. The Level control interacts with the Q parameter, depending in the selected EQ type (Hybrid, Pure, E-Type or G-Type).
Low band filter type. Toggles the Low band between Bell and Low Shelf mode. In Bell mode, the Low band boosts or attenuates a range of frequencies around a central point in a bell shape. In Low Shelf mode, the Low band boosts or attenuates the set frequency and all frequencies below it.
High band filter type. Toggles the High band between Bell and High Shelf mode. In Bell mode, the High band boosts or attenuates a range of frequencies around a central point in a bell shape. In High Shelf mode, the High band boosts or attenuates the set frequency and all frequencies above it.
Low Pass filter enable/disable . Enables the Low Pass filter, which attenuates high frequencies above the Low Pass frequency while allowing other frequencies to pass unfiltered.
Slope (Low Pass). Specifies the ratio of how the Low Pass filter attenuates frequencies above the Low Pass frequency. Slope is expressed in decibels per octave. The range is from 6 dB to 48 dB in 6 dB increments.
LP. Specifies the cut-off frequency for the Low Pass filter.
High Pass filter enable/disable . Enables the High Pass filter, which attenuates low frequencies below the High Pass frequency while allowing other frequencies to pass unfiltered.
Slope (High Pass). Specifies the ratio of how the High Pass filter attenuates frequencies below the High Pass frequency. Slope is expressed in decibels per octave. The range is from 6 dB to 48 dB in 6 dB increments.
HP. Specifies the cut-off frequency for the High Pass filter.
Gloss . Adds a smooth breath and presence to the high end without any harshness using a unique gloss filter.The QuadCurve Equalizer fly-out panel provides a larger interface for interacting with the EQ controls. The fly-out panel supports multi-touch and has an integrated FFT (Fast Fourier Transform) spectrum analyzer.The QuadCurve Equalizer fly-out panel can be accessed from the ProChannel in the Inspector or Console view.Figure 486. QuadCurve EQ fly-out panel.A. Click to open fly-out panel B. Input meter C. EQ plot D. FFT spectrum analyzer E. Output meter F. Pin fly-out panel G. Close fly-out panelThe FFT spectrum analyzer displays the instantaneous level of all frequencies. The vertical axis represents amplitude (the dynamic range is 0 to -72 dB) and the horizontal axis represents frequency.Do one of the following:
Do one of the following:
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